Wunderground launches new Local Climate Change section

By: Dr. Jeff Masters , 6:10 PM GMT on April 20, 2012

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In honor of Earth Day on Sunday, wunderground has launched a new Climate Change Center, which gives people resources to understand how the climate is changing both globally and in their local neighborhoods. I am particularly pleased with our Local Climate Change feature, which allows one to see how temperature and precipitation have changed over the past 100+ years at the nearest station with a long period of measurements. Predictions from climate models on what the next 100 years may bring are overlaid for each station. Data for most U.S. stations goes back to 1895; we have data for a few stations in Europe that extend back to the 1700s. Berlin has the longest period of record in this database, with data back to 1702.


Figure 1. Screenshot of the Local Climate Change page for Washington, DC. Measured temperatures since 1820 are shown in grey. By clicking on the "Show post-1900 trend:" box, we see that the trend since 1900 has been for an increase in temperature of 1.5°C (2.7°F) per century. Moving the thin vertical red line over the image using the mouse shows that the warmest year on record in Washington D.C. was 1991. Predictions for a future with low emissions of heat-trapping gases like carbon dioxide are shown in yellow; the high emissions prediction is shown in red. Separate tabs are available to examine precipitation and snow.

Skeptical?
Also included in the new Climate Change Center is a section addressing the common skeptical arguments made against climate change. We offer three levels of explanation. The "Basic" level is the default, but one can also see more technical in-depth discussions by clicking on the "See All Explanation Levels" link. The material was developed by physicist John Cook for his excellent skepticalscience.com web site, which is widely referenced in the climate science communication community.


Video 1. I'm featured in this video on extreme weather and climate change done by veteran videographer Peter Sinclair for the Yale forum on Climate Change and the Media this month. I'm also featured in Part 1 of this series. Our new Climate Change Center has a section for climate change videos, which includes a twice-monthly feature from GreenTV detailing the world's notable wild weather events of the past two weeks.

Earth: the Operator's Manual airs Sunday night
Penn State climate scientist Dr. Richard Alley hosts parts II and III of Earth: the Operator's Manual on PBS beginning at 7pm Sunday, April 22--Earth Day. Part I of this excellent series aired in April 2011. The series gives an overview of climate change, but primarily focuses on what we can do to help slow down climate change though smart energy choices. Dr. Alley, a registered Republican, geologist, and former oil company employee, is the Evan Pugh Professor of Geosciences at the Pennsylvania State University, and one of the most respected and widely published world experts on climate change. Dr. Alley has testified before Congress on climate change issues, served as lead author of "Chapter 4: Observations: Changes in Snow, Ice and Frozen Ground" for the Fourth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC), and is author of more than 170 peer-reviewed scientific articles on Earth's climate. He is also the author of a book I highly recommend--The Two Mile Time Machine, a superb account of Earth's climate history as deduced from the 2-mile long Greenland ice cores. Dr. Alley is an excellent and engaging speaker, and I highly recommend listening to his 45-minute keynote speech, "The Biggest Control Knob: CO2 in Earth's Climate History", given at the 2010 American Geophysical Union meeting, via this very watchable recording showing his slides as he speaks in one corner of the video. If you want to understand why scientists are so certain of the link between CO2 and Earth's climate, this is a must-see lecture.

Have a great weekend, everyone, and I'll be back Monday with a new post. I'd like to thank Wunderground meteorologist, Angela Fritz for spearheading the creating the new Climate Change Center; it's a product I'll be referring to frequently in the future, and one we'll be updating in the coming months with data on local sea level rise, fire risk, and drought.

Jeff Masters

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Glad to see so many in Florida getting rain already, but feeling like it's NEVER going to rain again in Cape Coral....

MAweatherboy, sounds like it's time to get away from Indonesia for a few days/weeks/lifetimes!
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How come no one's paying attention to this? We may soon see a tornado warning or tornado emergency for Brownsville

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
635 PM CDT FRI APR 20 2012

TXC061-210000-
/O.CON.KBRO.TO.W.0011.000000T0000Z-120421T0000Z/
CAMERON-
635 PM CDT FRI APR 20 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM CDT FOR WESTERN
CAMERON COUNTY...

AT 635 PM CDT NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
TRACK A TORNADO ON RADAR 3 MILES WEST OF SAN BENITO...MOVING
SOUTHEAST AT 40 MPH. THIS STORM HAS STRONG ROTATION AND MAY PRODUCE
A SIGNIFICANT TORNADO.

THE TORNADO WILL BE NEAR...
EL CAMINO ANGOSTO BY 635 PM CDT.
LAGO BY 640 PM CDT.
RANCHO VIEJO BY 645 PM CDT.
OLMITO BY 650 PM CDT.
THE HIGHWAY 77 CORRRIDOR...AND FAR NORTHERN BROWNSVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM! ACT QUICKLY. GO TO A SMALL INTERIOR ROOM
ON THE LOWEST FLOOR OF A STURDY BUILDING...AWAY FROM WINDOWS. COVER
YOUR HEAD WITH PILLOWS OR BLANKETS.

&&


LAT...LON 2616 9778 2627 9771 2601 9744 2594 9757
TIME...MOT...LOC 2335Z 317DEG 34KT 2611 9766

$$

JGG
Member Since: February 11, 2012 Posts: 82 Comments: 7643
24 hour GFS..
Member Since: September 27, 2007 Posts: 1 Comments: 20563
Member Since: February 29, 2012 Posts: 0 Comments: 5704
Busy earthquake night where that huge quake hit a week or so ago off Indonesia... We had a 5.2 a few hours ago, a 5.6 an hour and a half or so ago, shortly followed by a 5.5, and now a 6.1
Member Since: February 11, 2012 Posts: 82 Comments: 7643
If you want this animated, just shake your PC's back and forth.

Member Since: July 17, 2009 Posts: 69 Comments: 25557
Almost looks like a tropical storm on the NAM 42 hour frame..
Member Since: September 27, 2007 Posts: 1 Comments: 20563
Quoting MAweatherboy1:

Yeah, those red X symbols like to pop up out of nowhere

:)


Sometime my images work and sometimes they don't.
Member Since: February 29, 2012 Posts: 0 Comments: 5704
Quoting PedleyCA:


It was justa matter of time.

Yeah, those red X symbols like to pop up out of nowhere

:)
Member Since: February 11, 2012 Posts: 82 Comments: 7643


It was justa matter of time.
Member Since: February 29, 2012 Posts: 0 Comments: 5704
Quoting PedleyCA:
Hey Grothar

Was just going to inquire if you had seen any rain yet. I see by your reply
to EMC that you finally got lucky. Good deal, now lets hope ya don't get too much.


Member Since: July 17, 2009 Posts: 69 Comments: 25557
This is heading right smack at Brownsville... the city isn't in the warning but it will be in one soon if the storm holds together

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
630 PM CDT FRI APR 20 2012

THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A

* TORNADO WARNING FOR...
WESTERN CAMERON COUNTY IN DEEP SOUTH TEXAS.

* UNTIL 700 PM CDT

* AT 630 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
TRACKING A TORNADO ON RADAR OVER HARLINGEN...MOVING SOUTHEAST AT 40
MPH.

* THE TORNADO WILL BE NEAR...
SAN BENITO BY 630 PM CDT.
LA PALOMA BY 635 PM CDT.
RANCHO VIEJO BY 645 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PLEASE REPORT TORNADOES OR FUNNEL CLOUDS...WINDS OF 58 MPH OR
HIGHER...HAIL THE SIZE OF PENNIES OR LARGER...AND ANY WIND DAMAGE TO
YOUR NATIONAL WEATHER SERVICE IN BROWNSVILLE BY CALLING 956-504-1432.

&&

LAT...LON 2616 9778 2627 9771 2601 9744 2594 9757
TIME...MOT...LOC 2330Z 317DEG 34KT 2613 9767

$$

JGG


Member Since: February 11, 2012 Posts: 82 Comments: 7643
She's a coming together slowly but surely.........

Link
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We are already get bad storms in Broward County. The atmosphere is becoming very unstable.

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR... WESTERN BROWARD METRO IN SOUTH FLORIDA.

* UNTIL 800 PM EDT

* AT 715 PM EDT... NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL... AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR SAWGRASS MILLS MALL... AND MOVING EAST AT 10 MPH.

* THE STORM WILL AFFECT... SAWGRASS MILLS MALL... DAVIE... SUNRISE... COOPER CITY... PLANTATION... AND SURROUNDING COMMUNITIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Member Since: July 17, 2009 Posts: 69 Comments: 25557
Hey Grothar

Was just going to inquire if you had seen any rain yet. I see by your reply
to EMC that you finally got lucky. Good deal, now lets hope ya don't get too much.
Member Since: February 29, 2012 Posts: 0 Comments: 5704
Quoting Grothar:


Ha! Doing OK. emc. Just woke up from my nap. Looks like we finally are getting the rain we need.


Thank goodness. I have not got a drop here in Orlando, but all around me did. Guess I will have to wait until tomorrow. Up to 100% chance of rain per NWS. Fingers crossed
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Quoting emcf30:


Just like you my friend. How ya doing?


Ha! Doing OK. emc. Just woke up from my nap. Looks like we finally are getting the rain we need.
Member Since: July 17, 2009 Posts: 69 Comments: 25557
Quoting Grothar:
The NAM is a little slower on the timing







Just like you my friend. How ya doing?
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Quoting FLWaterFront:


Just bear in mind that the super storm of March, 1993 was not tropical either, but the damage caused by it was enormous.

The low pressure center was admittedly much stronger but it was also further away from Central Florida than this one will be, moving inland over the central Panhandle region. And the low levels of the atmosphere were not as warm and humid as will be the case here tomorrow.

This upcoming storm system is nothing to downplay. It will not be a hurricane of course but it has the potential to cause a lot of damage in scattered places over a widespread region. And if strong winds from the west accompany and follow the storm, as likely will happen, then coastal flooding will be an issue as well.


Yea that was a monster 960 Mb storm indeed. Once again, apples and oranges. I never said nothing about downplaying. I was referencing to a couple of preople, some with multiple handles of the past, constantly Hype every little cloud or particular model run. If you comprehended what I said, you will know that I said there will be severe weather and warnings, no doubt. Every one stay safe tomorrow and Sunday morning
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There's a big hook on a storm on the Texas/Mexico border... The hook part is south of the border but it's very strong.
Member Since: February 11, 2012 Posts: 82 Comments: 7643
Quoting Grothar:
The latest GFS has this intensifying over Long Island with even heavy snow in the interior sections of PA and NY


Maybe they'll be a winter after all
Member Since: February 11, 2012 Posts: 82 Comments: 7643
Quoting KoritheMan:


Not quite as strong either.


Nope. I wonder what the EURO has?
Member Since: July 17, 2009 Posts: 69 Comments: 25557
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Quoting Grothar:
The NAM is a little slower on the timing







Not quite as strong either.
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The NAM is a little slower on the timing





Member Since: July 17, 2009 Posts: 69 Comments: 25557
Quoting RitaEvac:
Report of hail covering the ground only a few miles from me down the road along I-45 in LaMarque, TX City


El Niño is sure playing a big roll on these events.
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Weather's a bit ugly right now in Boca Raton, Florida (the worst city in USA, IMO). Gusts at least over 40 MPH with torrential downpours, possible flooding and dangerous lightning.
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You'll feel that in the morning... You'll probably feel that for a few mornings actually:

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
556 PM CDT FRI APR 20 2012

THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
SOUTHERN HIDALGO COUNTY IN DEEP SOUTH TEXAS.

* UNTIL 645 PM CDT

* AT 556 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM...CAPABLE OF PRODUCING BASEBALL SIZE HAIL AND
DESTRUCTIVE 70 MPH WINDS...5 MILES NORTHWEST OF MISSION...MOVING
SOUTHEAST AT 40 MPH. NUMEROUS REPORTS OF DESTRUCTIVE HAIL OF
GOLFBALL TO BASEBALL SIZE HAVE BEEN RECEIVED WITH THESE STORMS. TAKE
COVER IN AN INTERIOR ROOM!

* THE SEVERE THUNDERSTORM WILL BE NEAR...
PALMVIEW.
MISSION.
MCALLEN MILLER AIRPORT.
HIDALGO.
SAN JUAN.
SOUTH ALAMO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PLEASE REPORT TORNADOES OR FUNNEL CLOUDS...WINDS OF 58 MPH OR
HIGHER...HAIL THE SIZE OF PENNIES OR LARGER...AND ANY WIND DAMAGE TO
YOUR NATIONAL WEATHER SERVICE IN BROWNSVILLE BY CALLING 956-504-1432.

&&

LAT...LON 2606 9808 2605 9816 2607 9825 2612 9829
2610 9830 2615 9835 2615 9838 2619 9844
2621 9845 2620 9849 2636 9837 2616 9789
2605 9797 2606 9800 2604 9804 2603 9808
TIME...MOT...LOC 2256Z 304DEG 33KT 2622 9836

$$

JGG
Member Since: February 11, 2012 Posts: 82 Comments: 7643
Something else to note..

When a developing storm system is just getting cranked up and is producing tornadoes and severe thunderstorms as far south as Brownsville, Texas already, that does not bode well for what may well happen in Florida over the next 36 hours.
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Long time lurker, rarely post. This is what is hitting my house right now.

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The latest GFS has this intensifying over Long Island with even heavy snow in the interior sections of PA and NY

Member Since: July 17, 2009 Posts: 69 Comments: 25557
Quoting emcf30:


You are correct. There may be winds of 15 mph or some winds of 60 mph as far as we know. Heck, I had 2 severe thunderstorms this afternoon with in 2 miles of my house, one just across the lake from me and my winds were calm the entire time.

But, the bottom line this is no tropical anything. This is going to be a broad area of low pressure which it's core will be cold.The characteristics are entirely different. Seems at times several people here try to scare the bejesus out of visitors to this site just looking for weather information. I am all for warning people of upcoming potential events which can be done without using keywords to frighten people who don't know any better.

There is a threat with this system and a lot of complicated dynamics that will be coming into play. There will be warnings but all can be passed on to this community without the over hyping by a few bloggers that has gone on here for the past few days regarding this system.


Just bear in mind that the super storm of March, 1993 was not tropical either, but the damage caused by it was enormous.

The low pressure center was admittedly much stronger but it was also further away from Central Florida than this one will be, moving inland over the central Panhandle region. And the low levels of the atmosphere were not as warm and humid as will be the case here tomorrow.

This upcoming storm system is nothing to downplay. It will not be a hurricane of course but it has the potential to cause a lot of damage in scattered places over a widespread region. And if strong winds from the west accompany and follow the storm, as likely will happen, then coastal flooding will be an issue as well.
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Report of hail covering the ground only a few miles from me down the road along I-45 in LaMarque, TX City
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Quoting WxLogic:


I reported to MLB NWS Hail in N Orange county as well as other Spotters. At the time they issued the Warning, there were other strong to SVR TSTM developing is of Sanford also moving S to SE. They wanted to cover all possible areas where further SVR WX could be experienced.


Excellent explanation...and sure enough, new cells are popping up throughout the warned area.
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Quoting RitaEvac:
This is what I captured an hour or so ago



















Nice
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The cold front has already passed Houston:

Temperature
66 °F
Dew Point
63 °F
Wind
Speed / Dir
9 mph from NW
Wind Gust

Louisiana is next in line.
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Quoting HurrMichaelOrl:
Wow, they just issued a large , east to west severe thunderstorm warning for the Orlando area, yet nothing too intense is around, certainly not over such a large area. Are they expecting a big storm to pop from boundary collisions?


I reported to MLB NWS Hail in N Orange county as well as other Spotters. At the time they issued the Warning, there were other strong to SVR TSTM developing east of Sanford also moving S to SE. They wanted to cover all possible areas where further SVR WX could be experienced.
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1.97" so far with much more on the way. To the denyers out there up 6" of rain is likely across C FL with maybe totals of up to 8" if this keeps up. That 1.97" came in 45 minutes!
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Winds blowing outta NW pretty good, front has blown in
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Wow, they just issued a large , east to west severe thunderstorm warning for the Orlando area, yet nothing too intense is around, certainly not over such a large area. Are they expecting a big storm to pop from boundary collisions?
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This is what I captured an hour or so ago

















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Quoting HughJass:


I agree 100%. My point was posts such as 166 which don't seem to add value and create clutter. I have other obligations I need to tend to. Hope everyone has a good evening.


not sure how a pic of the weather conditions tonight in the panhandle is anyway creating clutter to the blog.
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Global Warming: What We Knew in '82 (and 52)
If you want to skip everything else, watch the video between 8:40 to 9:10
Member Since: August 21, 2007 Posts: 0 Comments: 4860
Quoting HughJass:


I agree 100%. My point was posts such as 166 which don't seem to add value and create clutter. I have other obligations I need to tend to. Hope everyone has a good evening.


I'm still failing to see how they create "clutter" or are otherwise irrelevant. What's wrong with a graph?
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Quoting KoritheMan:


Um, what? This is a weather blog. Relevant exchange is encouraged.


I agree 100%. My point was posts such as 166 which don't seem to add value and create clutter. I have other obligations I need to tend to. Hope everyone has a good evening.
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Quoting LargoFl:
you dont know today, what the sustained winds will be tomorrow when that low crosses the state, could very well be tropical storm force winds


You are correct. There may be winds of 15 mph or some winds of 60 mph as far as we know. Heck, I had 2 severe thunderstorms this afternoon with in 2 miles of my house, one just across the lake from me and my winds were calm the entire time.

But, the bottom line this is no tropical anything. This is going to be a broad area of low pressure which it's core will be cold.The characteristics are entirely different. Seems at times several people here try to scare the bejesus out of visitors to this site just looking for weather information. I am all for warning people of upcoming potential events which can be done without using keywords to frighten people who don't know any better.

There is a threat with this system and a lot of complicated dynamics that will be coming into play. There will be warnings but all can be passed on to this community without the over hyping by a few bloggers that has gone on here for the past few days regarding this system.
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Quoting Skeptic33:
Ok, Dr. Masters, you have officially lost any respect I had for you after you recommended that propaganda website Skeptical Science which is obviously set up to smear any scientists (Spencer, Christie, etc) that do not share with your view.





Hope you like Joe Cocker.
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TSTM today in CFL are quite strong... just had a Hail swath swing by with penny to quarter size hail.

Tomorrow should be worst as updrafts should be more sustained on any TSTM that develops.
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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.