A dramatic greening of the Arctic over the past 30 years

By: Dr. Jeff Masters , 3:30 PM GMT on March 18, 2013

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A remarkable transformation in the vegetation of the Arctic has occurred over the past 30 years, according to a study of satellite data published on March 10, 2013, in Nature Climate Change. The authors found that Arctic vegetation growth and temperatures in 2011 resembled what occurred 250 - 430 miles farther to the south back in 1982. That's the approximate distance in latitude between San Francisco and San Diego, or Washington D.C. and Atlanta. More greening occurred in Eurasia than North America, and the Arctic's new greenness is visible on the ground as an increasing abundance of tall shrubs and trees. Large patches of vigorously productive vegetation now span a third of the northern landscape, an area about equal to the contiguous United States. "Higher northern latitudes are getting warmer, Arctic sea ice and the duration of snow cover are diminishing, the growing season is getting longer and plants are growing more," said co-author Dr. Ranga Myneni of Boston University's Department of Earth and Environment, in a NASA press release. "In the north's Arctic and boreal areas, the characteristics of the seasons are changing, leading to great disruptions for plants and related ecosystems." The changes in the Arctic's vegetation are being driven by human-caused global warming, which is occurring in the Arctic at more than double the rate of the rest of the planet. This so-called "Arctic amplification" is due, in part, to the increased melting of ice and snow near the pole. When ice and snow melt, they uncover darker surfaces underneath, which absorb more sunlight and increase Arctic temperatures in a vicious cycle which melts even more ice and snow. Using 17 climate models, the researchers predicted that a continuation of warming in the Arctic in coming decades could lead to over a 1300 mile latitudinal shift in Arctic vegetation zones by the year 2100, compared to the period 1951 - 1980. That's a distance greater than the north-south extent of the contiguous United States. However, more frequent forest fires, increased pest outbreaks, and summertime droughts due to a warming climate might slow down Arctic plant growth.


Figure 1. Of the 10 million square miles (26 million square kilometers) of northern vegetated lands, 34 to 41 percent showed increases in plant growth (green and blue), 3 to 5 percent showed decreases in plant growth (orange and red), and 51 to 62 percent showed no changes (yellow) over the past 30 years. Satellite data in this visualization are from AVHRR and MODIS. Credit: NASA's Goddard Space Flight Center Scientific Visualization Studio.


Figure 2. Trees take hold as permafrost thaws near the Altai Mountains in Russia. Credit: Terry Callaghan, EU-Interact/Sergey Kirpotin, Tomsk State University.

Commentary
One often hears complaints that global warming may be greatly overestimated, due to many temperature sensors being located in increasingly urbanized areas where local "urban heat island" effects are not being properly considered. If this were true (and it isn't), then we would not expect to see "nature's thermometers"--plants and animals--change their behavior and ranges much. But plants and animals are responding in major ways to the warming climate, and the greening of the Arctic is merely one more example of "nature's thermometers" telling us that the planet is warming significantly. Some other examples:

Fall is falling back: During 1982 to 1999, the end of the growing season was delayed by 4.3 days in the Northern Hemisphere. During 2000 to 2008, the end of the growing season was further delayed by an additional 2.3 days. In the U.S., fall now occurs ten days later than it did 30 years ago.

Spring is springing forward: Spring events, like bird and butterfly migrations, flower blooming times, and frog mating, have been advancing by about three days per decade over the past 30 years.

Animals are changing migration patterns: New species have colonized previously ‘cool’ regions, including sea anemones in Monterey Bay, and lichens and butterflies in Europe. Over the past 50 years, maximum range shifts vary from 200 km (butterflies) to 1,000 km (marine copepods).

Related blog post: New USDA Plant Hardiness Zone Map for gardeners shows a warming climate

Dr. Myneni's petition to protect Earth from climate change
Professor Myneni of Boston University's Department of Earth & Environment, co-author of the greening Arctic study, has developed a simple one-sentence petition that he hopes one billion people will sign by Earth Day, 2014:

Dear Secretary-General of the United Nations Ban Ki-moon,

We, the People of the Earth, request You to act judiciously and expeditiously to protect the Earth from anthropogenic climate change.

Respectfully,
People of the Earth


The petition, which I have signed, is at: https://yourclimatechange.org/, and was recently featured by Discovery News.

Jeff Masters

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you don't have to live in there..

MY LATEST WEATHER FORECAST FOR NYC

check it out...
Member Since: April 23, 2011 Posts: 104 Comments: 14873
Quoting bjrabbit:


Straight answer - Proof that man is greater than mother nature. To think that man, who has existed for a blink of an eye during the Earth's lifespan can "change" the climate (outside of nuclear war) is just not believable.

Livable planet? I grew up in the 60's and 70's near the steel mills in NW Indiana...the sky was brown with pollutants all day, every day and nothing lived in any of the rivers near the plant and there was open discharge into Lake Michigan. Now, the skies (and pollution) have cleared significantly, there is life in the rivers and the lake is cleaner. (And yes, for the most part the same steel mills there now where there in the 60's and 70's). What else do you want? It is never going to be the same place that the French trappers found in the 1600's. We have to be practical.
So, wait: you're claiming that mankind isn't able to change the climate, while at the same time noting that 30-40 years ago, "...the sky was brown with pollutants all day, every day and nothing lived in any of the rivers near the plant and there was open discharge into Lake Michigan".

So, can we change the environment or can't we? Which is it?

The thing is, we humans pump more than 3.4 million metric tons of CO2 into the atmosphere every hour of every day (and that amount is increasing). 3,400,000 tons. Given that science has proven the longlasting warmth-inducing properties of that gas, how can anyone possibly believe that it has no effect whatsoever on the climate?

Answer: they can't. Simply put, our burning of fossil fuels is overwhelming the system. And there's absolutely no credible scientific argument against that fact.
Member Since: November 8, 2009 Posts: 4 Comments: 13603
139. MTWX
THAT WAS INSANE!!!

We just recorded a wind gust of 78 MPH!!

There is debris everywhere!

Anyone ahead of this thing get stuff put away if you have time and then take substantial shelter!!

Link

The cell moving toward the Jackson area is already producing Baseball sized hail and intermittantly has a vortex signature!
Member Since: Posts: Comments:
Quoting StormTrackerScott:


Some rotation with that cell as well.


It sure is. Need to watch this one close.

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
300 PM CDT MON MAR 18 2013

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
NORTHERN HINDS COUNTY IN CENTRAL MISSISSIPPI...
THIS INCLUDES THE CITY OF CLINTON...
WEST CENTRAL MADISON COUNTY IN CENTRAL MISSISSIPPI...
SOUTHWESTERN YAZOO COUNTY IN CENTRAL MISSISSIPPI...
NORTHEASTERN WARREN COUNTY IN WEST CENTRAL MISSISSIPPI...

* UNTIL 400 PM CDT

* AT 300 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING BASEBALL SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 14
MILES NORTHWEST OF OAK RIDGE MOVING EAST AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
OAK RIDGE BY 315 PM CDT...
YOUNGTON...FLOWERS AND PHOENIX BY 320 PM CDT...
BROWNSVILLE BY 335 PM CDT...
BOLTON BY 340 PM CDT...
FLORA BY 345 PM CDT...
CLINTON AND POCAHONTAS BY 350 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS A HISTORY OF PRODUCING LARGE DAMAGING HAIL. SEEK
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS!

HAIL OF TENNIS BALL SIZED OR LARGER CAUSES EXTENSIVE DAMAGE TO CARS
AND BUILDINGS...INCLUDING POSSIBLY BREAKING OUT WINDOWS. PEOPLE
CAUGHT OUT OF DOORS COULD SUFFER SERIOUS INJURY. MOVE INTO A WELL
CONSTRUCTED BUILDING...AND STAY AWAY FROM WINDOWS.

WINDS OF 60 MPH CAN BRING DOWN TREES...POSSIBLY RESULTING IN INJURY
AND PROPERTY DAMAGE. ROOFS OF MOBILE HOMES AND OUTBUILDINGS COULD BE
DAMAGED...AND MINOR ROOF DAMAGE TO WELL BUILT HOMES AND STRUCTURES
COULD OCCUR.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM CDT MONDAY
EVENING FOR SOUTHEAST ARKANSAS AND NORTHEAST LOUISIANA AND NORTHERN
MISSISSIPPI.

&&

LAT...LON 3257 9075 3257 9072 3262 9072 3263 9069
3265 9073 3269 9071 3269 9070 3266 9069
3268 9066 3270 9067 3271 9073 3275 9072
3274 9064 3259 9017 3226 9036 3240 9081
TIME...MOT...LOC 2000Z 289DEG 35KT 3255 9085

$$

CME







Member Since: Posts: Comments:
137. txjac
@ 125 Nea

I cant wait to see if that happens ...would love some lower temps ...90 here at the moment
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Quoting Raptor112305:
Severe thunderstorm headed towards Jackson, MS with reported baseball size hail.





Some rotation with that cell as well.
Member Since: February 28, 2013 Posts: 7 Comments: 3845
3" to 5" of rain across C & N FL over the next 7 days per HPC. Talk about some big time drought relief for a parched C FL.

Member Since: February 28, 2013 Posts: 7 Comments: 3845
Severe thunderstorm headed towards Jackson, MS with reported baseball size hail.



Member Since: Posts: Comments:
Quoting MississippiWx:
This supercell needs to be watched closely. It has a history of being tornado warned and it certainly appear to have a hook echo. A tornado could be spawned at any time with this one. People in and around the Jackson metro area should pay close attention.



Echo tops of this storm are approaching 50K feet! Intense storm.
Member Since: Posts: Comments:













Dang, we are lucky there isn't a really strong system interacting with such impressive severe parameters or this would be a moderate to high risk outbreak.

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Quoting FLwolverine:

This is a straight question: what would it take - what information would you require - for you to decide that we should modify our current way of life so we could preserve a livable planet for our grandchildren?


Straight answer - Proof that man is greater than mother nature. To think that man, who has existed for a blink of an eye during the Earth's lifespan can "change" the climate (outside of nuclear war) is just not believable.

Livable planet? I grew up in the 60's and 70's near the steel mills in NW Indiana...the sky was brown with pollutants all day, every day and nothing lived in any of the rivers near the plant and there was open discharge into Lake Michigan. Now, the skies (and pollution) have cleared significantly, there is life in the rivers and the lake is cleaner. (And yes, for the most part the same steel mills there now where there in the 60's and 70's). What else do you want? It is never going to be the same place that the French trappers found in the 1600's. We have to be practical.
Member Since: Posts: Comments:
Member Since: August 13, 2009 Posts: 13 Comments: 6879
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
248 PM CDT MON MAR 18 2013

LAC035-065-MSC055-125-149-182030-
/O.CON.KJAN.SV.W.0119.000000T0000Z-130318T2030Z/
WARREN MS-SHARKEY MS-ISSAQUENA MS-EAST CARROLL LA-MADISON LA-
248 PM CDT MON MAR 18 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM CDT
FOR SOUTHERN ISSAQUENA...SOUTHERN SHARKEY AND NORTHWESTERN WARREN
COUNTIES...AND NORTHEASTERN MADISON AND SOUTHEASTERN EAST CARROLL
PARISHES...

AT 247 PM CDT...THE PUBLIC REPORTED A SEVERE THUNDERSTORM PRODUCING
BASEBALL SIZE HAIL IN TRANSYLVANIA...DAMAGING WINDS IN EXCESS OF 60
MPH ARE ALSO POSSIBLE WITH THIS STORM.
THIS STORM WAS LOCATED 7
MILES NORTH OF EAGLE BEND MOVING EAST AT 40 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
VALLEY PARK BY 300 PM CDT...
REDWOOD BY 305 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WINDS OF 60 MPH CAN BRING DOWN TREES...POSSIBLY RESULTING IN INJURY
AND PROPERTY DAMAGE. ROOFS OF MOBILE HOMES AND OUTBUILDINGS COULD BE
DAMAGED...AND MINOR ROOF DAMAGE TO WELL BUILT HOMES AND STRUCTURES
COULD OCCUR.

THIS IS A PARTICULARLY DANGEROUS STORM. HAIL OF TENNIS BALL SIZED OR
LARGER CAUSES EXTENSIVE DAMAGE TO CARS AND BUILDINGS...INCLUDING
POSSIBLY BREAKING OUT WINDOWS. PEOPLE CAUGHT OUT OF DOORS COULD
SUFFER SERIOUS INJURY. MOVE INTO A WELL CONSTRUCTED BUILDING...AND
STAY AWAY FROM WINDOWS.

THIS STORM HAS A HISTORY OF PRODUCING DESTRUCTIVE WINDS AND LARGE
DAMAGING HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY
AWAY FROM WINDOWS!

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM CDT MONDAY
EVENING FOR SOUTHEAST ARKANSAS AND NORTHEAST LOUISIANA AND NORTHERN
MISSISSIPPI.

&&

LAT...LON 3271 9130 3272 9094 3283 9095 3284 9076
3281 9074 3281 9070 3278 9071 3276 9069
3276 9073 3272 9074 3271 9070 3266 9073
3262 9072 3243 9078 3256 9132
TIME...MOT...LOC 1947Z 279DEG 35KT 3262 9100

$$

CME
Member Since: Posts: Comments:
This supercell needs to be watched closely. It has a history of being tornado warned and it certainly appear to have a hook echo. A tornado could be spawned at any time with this one. People in and around the Jackson metro area should pay close attention.

Member Since: Posts: Comments:
Storms in Northern Mississippi and Alabama are packing a punch today. 77mph wind gust reported at Columbus AFB.

Member Since: Posts: Comments:
Member Since: Posts: Comments:
This = ugly. That's about as big a blob of deep blue as I've ever seen on the CPC temperature probability map:

cold

But considerable moderation takes place over the 8-14 day period:
cold
Member Since: November 8, 2009 Posts: 4 Comments: 13603
SEVERE THUNDERSTORM WARNING
LAC035-123-182000-
/O.NEW.KJAN.SV.W.0120.130318T1935Z-130318T2000Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
235 PM CDT MON MAR 18 2013

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
SOUTHWESTERN EAST CARROLL PARISH IN NORTHEAST LOUISIANA...
SOUTHERN WEST CARROLL PARISH IN NORTHEAST LOUISIANA...

* UNTIL 300 PM CDT

* AT 235 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 6 MILES
SOUTHWEST OF DARNELL MOVING EAST AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
DARNELL BY 240 PM CDT...
MONTICELLO BY 245 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WINDS OF 60 MPH CAN BRING DOWN TREES...POSSIBLY RESULTING IN INJURY
AND PROPERTY DAMAGE. ROOFS OF MOBILE HOMES AND OUTBUILDINGS COULD BE
DAMAGED...AND MINOR ROOF DAMAGE TO WELL BUILT HOMES AND STRUCTURES
COULD OCCUR.

THE HAIL BEING PRODUCED BY THIS SEVERE THUNDERSTORM WILL LIKELY
DAMAGE CARS AND ROOFS. PEOPLE WHO ARE OUT OF DOORS SHOULD MOVE INSIDE
A STRUCTURE IMMEDIATELY.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM CDT MONDAY
EVENING FOR SOUTHEAST ARKANSAS AND NORTHEAST LOUISIANA AND NORTHERN
MISSISSIPPI.

&&

LAT...LON 3273 9157 3272 9127 3254 9131 3254 9141
3259 9145 3259 9159
TIME...MOT...LOC 1935Z 272DEG 35KT 3263 9149

$$

CME
Member Since: Posts: Comments:
Courtesy of the North Mississippi Storm Chasers & Spotters FB page.

Photo of the Semi truck that was blown almost completely over a overpass bridge in Tupelo, MS - Picture taken by Kim, wife of our spotter Kevin.

Member Since: Posts: Comments:
Quoting gippgig:
A couple articles that may be of interest:
www.terradaily.com/reports/A_new_technique_to_sim ulate_climate_change_999.html - do it yourself climate models
www.terradaily.com/reports/Remote_clouds_responsi ble_for_climate_models_glitch_in_tropical_rainfall _999.html - one partial reason there's no southern Atlantic hurricane season


Here are your links -

A new technique to simulate climate change

Remote clouds responsible for climate models' glitch in tropical rainfall
Member Since: Posts: Comments:
Member Since: February 11, 2012 Posts: 0 Comments: 9737
Quoting JustPlantIt:
Off of the topic... but did anyone have their Macs hacked yesterday? Loose the Javascript, etc.???


No I didn't loose anything on mine JustPlantIt..
Is your Mac ok now?
Member Since: August 13, 2009 Posts: 13 Comments: 6879
The Weather Channel ‏@weatherchannel
Official observation at Columbus, MS airport reported a funnel cloud at 2:12pm, preceded by a 77-mph wind gust. Dangerous storms!
Member Since: February 11, 2012 Posts: 0 Comments: 9737
Nice update Doc! Signed the petition and urged all my friends to do the same.

Can't wait until you visit CMU this Thursday!! :D
Member Since: Posts: Comments:
best helicities are heading for me now

iso tornaoes possible
Member Since: February 11, 2012 Posts: 0 Comments: 9737
cool model NCS,

looks like West Tx and the MidWest MIGHT get some rain on the 23rd and 31, once the block clears out. Lots of wet news for FL, and that is good news.
Member Since: December 28, 2006 Posts: 115 Comments: 1590
115. bwi
Quoting RTSplayer:


Tell a residential construction worker to ride a bike to work, because gasoline costs too much, and leave his truck and tool trailer at home.

Are you serious?

Reduced standard of living is a sad understatement.

The economy would crash worse than the Great Depression, as a VERY large number of workers would not even be able to commute to work. You can't expect somebody to ride a bike 15 or 20 miles (or more) each way every day, and not all jobs are in the city in a nice office building.

Haven't seen anything yet though. Just wait until freight trains, semi-trucks, and farm equipment are required to be converted to pure electric. Food and clothing prices will be so high everyone except the top 20% will be back to living in huts with little or no modern technology.


Somehow, construction and other delivery people in other parts of the advanced world seem to manage: http://www.copenhagenize.com/2011/04/sperm-bike-i n -copenhagen.html
Member Since: Posts: Comments:
A couple articles that may be of interest:
www.terradaily.com/reports/A_new_technique_to_sim ulate_climate_change_999.html - do it yourself climate models
www.terradaily.com/reports/Remote_clouds_responsi ble_for_climate_models_glitch_in_tropical_rainfall _999.html - one partial reason there's no southern Atlantic hurricane season
Member Since: Posts: Comments:
336
WWUS54 KJAN 181857
SVSJAN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
157 PM CDT MON MAR 18 2013

ARC017-181907-
/O.CAN.KJAN.TO.W.0045.000000T0000Z-130318T1930Z/
CHICOT AR-
157 PM CDT MON MAR 18 2013

...THE TORNADO WARNING FOR SOUTHWESTERN CHICOT COUNTY IS CANCELLED...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM CDT MONDAY
EVENING FOR SOUTHEAST ARKANSAS AND NORTHEAST LOUISIANA AND NORTHERN
MISSISSIPPI.

LAT...LON 3301 9157 3300 9127 3297 9128 3296 9127
3294 9131 3288 9131 3286 9135 3284 9134
3283 9136 3283 9143 3288 9161
TIME...MOT...LOC 1857Z 284DEG 33KT 3294 9148

$$

ARC003-LAC067-123-181930-
/O.CON.KJAN.TO.W.0045.000000T0000Z-130318T1930Z/
ASHLEY AR-MOREHOUSE LA-WEST CARROLL LA-
157 PM CDT MON MAR 18 2013

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 230 PM CDT FOR EXTREME
SOUTHEASTERN ASHLEY COUNTY...AND NORTHERN WEST CARROLL AND
NORTHEASTERN MOREHOUSE PARISHES...

AT 157 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUE TO
TRACK A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS
TORNADO WAS LOCATED 8 MILES NORTHWEST OF OAK GROVE MOVING EAST AT 40
MPH.

THE TORNADO WILL BE NEAR...
OAK GROVE BY 205 PM CDT...
KILBOURNE BY 210 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WARNING MEANS THAT A TORNADO IS OCCURRING OR IMMINENT. YOU
SHOULD ACTIVATE YOUR TORNADO ACTION PLAN AND TAKE PROTECTIVE ACTION
NOW.

THIS STORM HAS A HISTORY OF PRODUCING GOLF BALL SIZED HAIL. SEEK
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS!

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM CDT
MONDAY EVENING FOR SOUTHEAST ARKANSAS AND NORTHEAST LOUISIANA AND
NORTHERN MISSISSIPPI.

&&

LAT...LON 3301 9157 3300 9127 3297 9128 3296 9127
3294 9131 3288 9131 3286 9135 3284 9134
3283 9136 3283 9143 3288 9161
TIME...MOT...LOC 1857Z 284DEG 33KT 3294 9148

$$

CME







================================================= =====================

774
WWUS54 KJAN 181851
SVSJAN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
151 PM CDT MON MAR 18 2013

ARC003-017-LAC067-123-181930-
/O.CON.KJAN.TO.W.0045.000000T0000Z-130318T1930Z/
ASHLEY AR-CHICOT AR-MOREHOUSE LA-WEST CARROLL LA-
151 PM CDT MON MAR 18 2013

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 230 PM CDT FOR
SOUTHWESTERN CHICOT AND SOUTHEASTERN ASHLEY COUNTIES...AND NORTHERN
WEST CARROLL AND NORTHEASTERN MOREHOUSE PARISHES...

AT 151 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUE TO
TRACK A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS
TORNADO WAS LOCATED 7 MILES SOUTH OF WILMOT MOVING EAST AT 40 MPH.

THE TORNADO WILL BE NEAR...
OAK GROVE BY 205 PM CDT...
KILBOURNE BY 210 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WARNING MEANS THAT A TORNADO IS OCCURRING OR IMMINENT. YOU
SHOULD ACTIVATE YOUR TORNADO ACTION PLAN AND TAKE PROTECTIVE ACTION
NOW.

THIS STORM HAS A HISTORY OF PRODUCING GOLF BALL SIZED HAIL. SEEK
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS!

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM CDT MONDAY
EVENING FOR SOUTHEAST ARKANSAS AND NORTHEAST LOUISIANA AND NORTHERN
MISSISSIPPI.

&&

LAT...LON 3306 9160 3304 9124 3301 9125 3300 9127
3297 9128 3296 9127 3294 9131 3288 9131
3286 9134 3282 9135 3283 9143 3289 9166
TIME...MOT...LOC 1851Z 284DEG 33KT 3295 9154

$$

CME







================================================= =====================

642
WFUS54 KJAN 181842
TORJAN
ARC003-017-LAC067-123-181930-
/O.NEW.KJAN.TO.W.0045.130318T1842Z-130318T1930Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE JACKSON MS
142 PM CDT MON MAR 18 2013

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* TORNADO WARNING FOR...
NORTHEASTERN MOREHOUSE PARISH IN NORTHEAST LOUISIANA...
NORTHERN WEST CARROLL PARISH IN NORTHEAST LOUISIANA...
SOUTHEASTERN ASHLEY COUNTY IN SOUTHEAST ARKANSAS...
THIS INCLUDES THE CITY OF WILMOT...
SOUTHWESTERN CHICOT COUNTY IN SOUTHEAST ARKANSAS...

* UNTIL 230 PM CDT

* AT 142 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR JONES
MOVING EAST AT 40 MPH.

* THE TORNADO WILL BE NEAR...
OAK GROVE BY 205 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WARNING MEANS THAT A TORNADO IS OCCURRING OR IMMINENT. YOU
SHOULD ACTIVATE YOUR TORNADO ACTION PLAN AND TAKE PROTECTIVE ACTION
NOW.

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING
BASEBALL SIZED HAIL AND DAMAGING STRAIGHT LINE WINDS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM CDT MONDAY
EVENING FOR SOUTHEAST ARKANSAS AND NORTHEAST LOUISIANA AND NORTHERN
MISSISSIPPI.

&&

LAT...LON 3307 9168 3304 9124 3301 9125 3300 9127
3298 9127 3297 9128 3296 9127 3294 9131
3288 9131 3286 9134 3281 9134 3289 9174
TIME...MOT...LOC 1842Z 284DEG 33KT 3297 9164

$$

CME






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Quoting trumpman84:

An alternate hypothesis may be that plant growth is accelerating globally due to an increased concentration of CO2 in the air. CO2 has been shown to accelerate plant growth when introduced in higher concentrations.
Ah yes, the old CC myth that because "CO2 is plant food" everything will grow better. It ain't quite so simple!

Please read this at Dr. Masters' recommended denier-disproval website, SkepticalScience.com.
From the SkepticalScience.com "advanced" page on the subject:

The first and most obvious retort to this argument is that plants require more than just CO2 to live. Owners of industrial greenhouses who purchase excess CO2 also invest considerable effort in keeping their plants at optimum growing conditions, particularly with respect to temperature and moisture. As CO2 continues to change the global climate, both of these variables are subject to change in an unfavorable way for a certain species in a certain region (Lobell et al. 2008, Luo 2009, Zhao and Running 2010, Challinor et al. 2010, Lobell et al. 2011). More and more it is becoming clear that in many cases, the negatives of drought and heat stress may cancel out any benefits of increased CO2 predicted by even the most optimistic study.
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EPA News Release..Secure Pesticides and Chemicals during Poison Prevention Week
Member Since: August 13, 2009 Posts: 13 Comments: 6879
110. VR46L




URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 52
NWS STORM PREDICTION CENTER NORMAN OK
130 PM CDT MON MAR 18 2013

THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

NORTHERN AND CENTRAL ALABAMA
EXTREME SOUTHEAST ARKANSAS
NORTHWEST GEORGIA
EXTREME NORTHEAST LOUISIANA
CENTRAL MISSISSIPPI
SOUTHERN MIDDLE TENNESSEE

EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 130 PM UNTIL 900
PM CDT.

HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 50
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 65 MILES SOUTHWEST
OF GREENVILLE MISSISSIPPI TO 20 MILES EAST OF ROME GEORGIA. FOR
A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU2).

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.

OTHER WATCH INFORMATION...CONTINUE...WW 51...

DISCUSSION...AN INTENSIFYING BAND OF THUNDERSTORMS EXTENDS FROM
SOUTHEAST AR...ACROSS NORTH CENTRAL MS...INTO NORTHWEST AL. THESE
STORMS ARE EXPECTED TO CONTINUE TO STRENGTHEN AND SPREAD ACROSS THE
WATCH AREA THIS AFTERNOON AND EVENING. MODERATE INSTABILITY...COOL
TEMPERATURES ALOFT...AND FAVORABLE DEEP LAYER EFFECTIVE SHEAR
PROFILES WILL PROMOTE ROTATING CELLS AND BOWING STRUCTURES CAPABLE
OF LARGE HAIL AND DAMAGING WINDS. AN ISOLATED TORNADO CANNOT BE
RULED OUT AS WELL.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. MEAN STORM
MOTION VECTOR 27040.


...HART
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Winter Storm Tracks Through Midwest

A strong Winter storm is moving through the Midwest, adding several more inches of snow to the season's total. Winter Storm Warnings are posted in the Northeast, with up to a foot of snow possible.
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Quarter sized hail here in Greenville, MS
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Off of the topic... but did anyone have their Macs hacked yesterday? Loose the Javascript, etc.???
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THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH AND CENTRAL GEORGIA.

.DAY ONE...TODAY AND TONIGHT...

...STRONG TO SEVERE THUNDERSTORMS POSSIBLE TODAY INTO TONIGHT...

DISCUSSION...
LOW PRESSURE IS EXPECTED TO DEVELOP OVER WESTERN TENNESSEE AND
KENTUCKY LATER THIS MORNING AS A COLD FRONT DEVELOPS OVER THE
SOUTHERN PLAINS AND LOWER GULF COAST. AHEAD OF THIS FRONT...AN
AREA OF SHOWERS AND EMBEDDED THUNDERSTORMS WILL MOVE ACROSS
ALABAMA AND INTO WEST GEORGIA LATER THIS MORNING. STORMS WILL
INTENSIFY THROUGH EARLY AFTERNOON AND SPREAD OVER THE REMAINDER OF
THE AREA WITH THE THREAT FOR STRONG TO SEVERE STORMS WITH LARGE
HAIL...DAMAGING WINDS AND A RISK OF AN ISOLATED TORNADO.

A SECONDARY AREA OF SHOWERS AND STRONG TO SEVERE STORMS WILL
DEVELOP ALONG THE ACTUAL COLD FRONT TONIGHT WITH THE AREA OF MAIN
CONCERN SHIFTING TO CENTRAL GEORGIA FOR THE FIRST PART OF THE
OVERNIGHT PERIOD.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY...

DISCUSSION...

A DRIER BUT COLDER REGIME WILL TAKE HOLD WEDNESDAY ALTHOUGH WE
WILL NEED TO MONITOR FOR A BRIEF PERIOD OF LIGHT WINTRY PRECIPITATION
OVER THE MOUNTAINS LATE WEDNESDAY. TRANQUIL CONDITIONS IN STORE
UNTIL NEXT STORM SYSTEM TAKES SHAPE FOR THE END OF THE WEEK AND
INTO THE WEEKEND. AT THE ONSET OF PRECIPITATION EARLY FRIDAY
MORNING...A LIGHT CHANCE OF WINTRY PRECIPITATION WILL BE POSSIBLE
FOR THE EXTREME NORTHERN TIER. OTHERWISE...THE EXTENDED PERIOD
WILL FEATURE A CHANCE OF THUNDERSTORMS FOR THE SOUTHERN TIER AND
CONTINUED COOL AND WET FOR THE NORTH.
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From the graphics provided, it looks as though plant growth may be accelerating everywhere -- not just in permafrost areas. One of the darkest shades of green looks to be in northern Minnesota. Surely, there is no permafrost to overcome there...

An alternate hypothesis may be that plant growth is accelerating globally due to an increased concentration of CO2 in the air. CO2 has been shown to accelerate plant growth when introduced in higher concentrations.
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Nino 3.4 is more cooler. Go to my ENSO Blog to see the CPC update.
Member Since: April 29, 2009 Posts: 75 Comments: 14559
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102. VR46L
I can just imagine the cheering in Florida when folk see this

Precip 12z Twisterdata
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101. MTWX
Here we go!!



MD 277
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Quoting PedleyCA:
Is it June? It sure looks like it. 61.0F and overcast. Forecast for 73.



Looks like they reeled in the forecast a bit....



That petition site crashed again (3).....


I had good luck with the petition site..
Maybe something on your security settings??
Wish I could help ya..
Member Since: August 13, 2009 Posts: 13 Comments: 6879
Is it June? It sure looks like it. 61.0F and overcast. Forecast for 73.



Looks like they reeled in the forecast a bit....



That petition site crashed again (3).....
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Man we are taking a pounding today in eastern Nd and western Mn. Every major road is closed in western MN.

Here is a traffic cam out of Pembina Nd.



Looks fun on I-29 today
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Quoting bjrabbit:
......... Yeah, I am a GW denier in regards that we shouldn't have to chunk our current way of life to "save the earth". However, we can do a better job of designing our buildings and developments to minimize secondary "man-made" heating.

However, it would have a better debate about temperature measurements and changes if we could just get that 24/7 satellite data for the years 1000 to the mid 1970's or whenever satellite info started to get used. I probably shouldn't hold my breath.

This is a straight question: what would it take - what information would you require - for you to decide that we should modify our current way of life so we could preserve a livable planet for our grandchildren?
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Quoting bappit:
I wonder if China monitors or blocks traffic to/mention of that web site.



Hey bappit..
I tried to find Dr. Myneni's petition to the UN in China..
Just did a websearch on "Baidu"" the Chinese equivalent of our Google..
It restricts it and gives Government websites on security and Health instead.. :(
Member Since: August 13, 2009 Posts: 13 Comments: 6879
Quoting Chapelhill:
Damage reports coming in from Rutherford County Tennessee. Structure damage with injuries. Roads blocked.
Two of the cells over Middle TN looked nasty. Would have been a surprise if there was not any damage. Coffee County may have some serious damage. Waiting to hear from them .
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The Kyoto Protocol is useless.

It does no good to destroy your economy and energy infrastructure in an attempt to clean things up, if you no longer have the funds to develop even cleaner energy because you handicapped yourself so much.


Even if you banned all new internal combustion engines today, which would be a stupid move, but even still, it would take 10 to 20 years or more to phase all the old ones out. Congress cannot make an ex post facto law, although they actually get away with doing so all the time (but that's because most people are ignorant of the facts).

You can force someone who just bought an new ICE vehicle to just sell it or junk it and go buy an electric, after all, if you ban them, then who is going to buy it? Nobody.


If you drive up energy prices high enough, people will just do old school things, like burn fire wood, or buy waste from a sugar cane farm and burn that. It's probably cleaner than burning coal to power an electric heater anyway, due to the limits of thermodynamics.

You can't drive around arresting and ticketing literally every person in the country.
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Quoting bjrabbit:
Dr. Masters: How can you say that the increase in cities and their heat generation has no effect? You muddle the issue about bringing up heat sensors and nature's thermometers....are you saying that the City of Chicago doesn't put off more heat than it receives...and where does that heat go but into the atmosphere?

I'm not a meteorologist, but I can make correlations.
........
How can he say that? Well, he didn't:

"One often hears complaints that global warming may be greatly overestimated, due to many temperature sensors being located in increasingly urbanized areas where local "urban heat island" effects are not being properly considered."

Dr Masters is countering the argument that temperature measurements are unreliable (and therefore GW isn't happening) because measurements are made near urban heat islands and so are distorted. Everything I've read about GW acknowledges that urban heat islands exist and have to be accounted for in the climate models. He is also pointing out that even if we didn't have temperature data, we would know that the climate is changing because the effects on the natural environment are so pronounced.
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12z CMC





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Quoting LargoFl:
ok this is an Honest question from one who isnt following this GW agenda..what exactly are folks trying to warn us about with GW?..the earth has gone thru this many times in the past..hot to cold..cold to hot.......i do understand..coastal cities May be at risk from rising sea levels..and maybe more sever storms....what else?..........and for my own opinion Even if your 100% right on this...no one ON this planet can get all the humans on earth to do something about it..so why...are we even fretting over it?...if it comes it comes..now dont take this as an attack ok..just one mans opinion and question

This website 20 Deadliest Effects of Global Warming gives a more dramatic answer to your question, but the basis is the same science as in the NASA link that Skye gave you.

Also the climate change pages on the WU site have lots of information, as does the Skeptical Science website. In particular, you might want to read this information on the point that climate has changed before.

As to the question "why are we even fretting over it?" - I think the answer is that the possible consequences of unchecked global warming are so disastrous that many of us cannot resign ourselves to it. One example: Higher temperatures and changes in weather patterns can lead to drought and desertification, which in turn can lead to food shortages or famines, which can lead to deaths, "social unrest", and wars. (Oh, you my neighbor still have a source of fresh water? I want it! Attack!)

Another example: coastal cities will be at risk from rising sea levels, but did you know that a number of small island nations are at risk of being destroyed by rising sea levels? You might look at this from the Alliance of Small Island States. Some of these small nations are trying to raise and save money to pay for the relocation of their entire population at such time as their islands become uninhabitable.

These are just examples of why the attitude "if it comes, it comes" just doesn't work.

Largo, I hope this comes across as respectful, because I do respect you for raising these questions and not just brushing off the issue. I understand that you haven't been drenched in this information as I have over the last few months and as some people have for years. I hope you will read some of this information and ask more questions.
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Jeff co-founded the Weather Underground in 1995 while working on his Ph.D. He flew with the NOAA Hurricane Hunters from 1986-1990.