An upside-down winter: coldest in 25 years in U.S., warmest on record in Canada

By: Dr. Jeff Masters , 3:26 PM GMT on March 12, 2010

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The U.S. just experienced its coldest winter in 25 years, according to the National Climatic Data Center. The winter period December - February was the 18th coldest winter in the contiguous U.S. over the past 115 years, and the coldest since 1984 - 1985. It was also a wet winter, ranking 19th wettest. The states experiencing the coldest winters, relative to average, were Texas and Louisiana, which had their 5th coldest winters on record. Mississippi, Georgia, Alabama, Oklahoma, Arkansas, Florida, and South Carolina also had a top-ten coldest winter. The only state much above average was Maine, which had its 3rd warmest winter. As I discussed earlier this week, this winter's cold weather over the U.S. is largely due to the Arctic Oscillation/North Atlantic Oscillation, which assumed its most extreme negative configuration since record keeping began in 1950. El Niño helped keep things cool from Texas to the Southeastern U.S., as well.


Figure 1. Winter temperatures for the winter of 2009 - 2010. Image credit: National Climatic Data Center.

A cold February in the U.S.
February temperatures were 2.2°F below average across the contiguous U.S., making it the 29th coldest February in the 115-year record. For the second month in a row, Florida was the coldest state, relative to average. Florida had its 4th coldest February on record. Seven other states had February temperatures between 5th and 8th coldest on record: Louisiana, Texas, Alabama, Mississippi, Arkansas, Georgia, and South Carolina. Maine had its 3rd warmest February, New Hampshire its 5th, and Washington its 6th. Precipitation across the U.S. was near average in February.

Warmest and driest winter on record in Canada
Canada had its warmest winter on record, 4.0°C (7.2°F) above average, according to Environment Canada. The previous record was 3.9°C above average, set in 2005-2006. Canada also experienced its driest winter on record this year, with precipitation 22.0% below normal. The previous driest winter was 1977-1978 (20.1% below normal). Canadian weather records go back 63 years, to 1948. David Phillips, a senior climatologist with Environment Canada, warned of potential "horrific" water shortages, insect infestations, and wildfires this summer due to the warm, dry winter. Phillips blamed the warm winter weather on El Niño and the severe loss of arctic sea ice last fall. The winter season in Canada has warmed, on average, by 2.5°C (4.5°F) over the past 63 years.


Figure 2. Departure of temperature from average in Canada for the winter of 2009 - 2010. Image credit: Environment Canada.

Brazilian tropical/subtropical storm named "Anita"
The South Atlantic tropical/subtropical storm we've been tracking this week has moved over colder waters and has now transitioned to a regular extratropical storm. Earlier this week, the storm became just the 7th tropical or subtropical cyclone on record in the South Atlantic. According to a statement put out by MetSul Meteorologia, a Brazilian weather company, this storm is now named "Tropical Storm Anita:"

The regional weather centers and the private weather enterprises of both Rio Grande do Sul and Santa Catarina, southernmost Brazilian states, in a joint decision, named Anita the rare tropical storm of March 9th and 10th in the coastal areas of the region. The name was chosen considering a historic figure of Rio Grande do Sul and Santa Catarina, both states affected by the tropical cyclone. Anita Garibaldi (1821-1849) was a heroine of the Farroupilha Revolution (1835-1845), one of the most important events in the Brazilian history that took place in the Southern part of the country. Anita was used in the past to designate tropical cyclones in other basins: North Atlantic, the Pacific and the Indian Ocean.

Next week, we need to keep an eye on northeastern Australia, where Tropical Cyclone 20 may pay a visit. The storm is under light shear and warm waters, and is forecast to increase to Category 4 strength by Monday. Also of concern is Tropical Cyclone 19, which is expected to hit Fiji as a Category 2 storm early next week.

First tornado death of the year for the U.S
A tornado that hit Cleburne, Arkansas on Wednesday caused three serious injuries and the tornado season's first fatality, a 79-year old man sheltering in his single story wood-frame home. Yesterday, a suspected tornado ripped through Haines City, Florida destroying four condos and damaging fifteen others. One person was injured. Two other tornadoes caused minor damage in central Florida. The severe weather outbreak continues today, as NOAA's Storm Prediction Center is forecasting a "slight" chance of severe weather over portions of Florida, Georgia, Alabama, Kentucky, Indiana, and Ohio. After today, the severe weather action should diminish for at least five days over the U.S. The major U.S. weather story this weekend will be flooding in the Mid-Atlantic, where heavy rains of up to four inches are expected. Soils are already saturated and the heavy snows from this winter's major snowstorms will also melt, likely creating moderate flooding problems over much of the Mid-Atlantic.

Links to follow:
Interactive tornado map
Severe weather page


Figure 3. Severe weather forecast for today from the NOAA Storm Prediction Center.

Jeff Masters

Tornado, Saline County, AR (waltdsgirl)
Tornado, Saline County, AR
deluge of rain... (happytobealive)
We drove west on I-10 today and this is what we encountered near Live Oak, Florida. We pulled to the side of the road for a time because the rain was more than the wipers could clear for safe driving.
deluge of rain...
wind damage (Openmike)
Wind tore the awning from a business on U.S. 19 between Crystal River and Homassaa Springs, Fl., Thursday afternoon. Severe stroms hammered the area, causing wind damage and flooding. A tornado was reported, by a trained spotter, about ten miles South of this location. Check the series for more storm and flood pictures.
wind damage

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SEVERE THUNDERSTORM WARNING
GAC023-153-235-289-122300-
/O.NEW.KFFC.SV.W.0009.100312T2213Z-100312T2300Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
513 PM EST FRI MAR 12 2010

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
BLECKLEY COUNTY IN CENTRAL GEORGIA
EAST CENTRAL HOUSTON COUNTY IN CENTRAL GEORGIA
PULASKI COUNTY IN CENTRAL GEORGIA
SOUTHERN TWIGGS COUNTY IN CENTRAL GEORGIA

* UNTIL 600 PM EST

* AT 512 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZED
HAIL...AND DESTRUCTIVE WINDS UP TO 70 MPH. THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM 11 MILES NORTHWEST OF COCHRAN
TO HAWKINSVILLE TO 8 MILES SOUTHWEST OF HAWKINSVILLE...MOVING
NORTHEAST AT 40 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
DANVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS.

IF YOU SEE WIND DAMAGE...LARGE HAIL OR SIGNIFICANT FLOODING...WAIT
UNTIL THE STORM HAS PASSED...AND THEN CALL THE NATIONAL WEATHER
SERVICE TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6.

&&

LAT...LON 3222 8360 3230 8355 3251 8366 3266 8328
3242 8314 3244 8317 3233 8330 3231 8329
3224 8338 3221 8334 3211 8360
TIME...MOT...LOC 2214Z 245DEG 33KT 3247 8350 3234 8344
3220 8353

$$

------------------------

TORNADO WARNING
GAC023-153-235-289-122300-
/O.NEW.KFFC.TO.W.0006.100312T2218Z-100312T2300Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
518 PM EST FRI MAR 12 2010

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* TORNADO WARNING FOR...
BLECKLEY COUNTY IN CENTRAL GEORGIA
EXTREME EASTERN HOUSTON COUNTY IN CENTRAL GEORGIA
NORTH CENTRAL PULASKI COUNTY IN CENTRAL GEORGIA
SOUTHEASTERN TWIGGS COUNTY IN CENTRAL GEORGIA

* UNTIL 600 PM EST

* AT 517 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 6 MILES WEST OF
COCHRAN...MOVING NORTHEAST AT 40 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
DANVILLE AND MAGNOLIA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO A
BASEMENT OR INTERIOR ROOM ON THE GROUND FLOOR. STAY AWAY FROM
WINDOWS. IF DRIVING...DO NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. TAKE COVER NOW! IF YOU WAIT
TO SEE OR HEAR IT COMING...IT WILL BE TOO LATE TO GET TO A SAFE
PLACE.

IF YOU SEE WIND DAMAGE...LARGE HAIL OR SIGNIFICANT FLOODING...WAIT
UNTIL AFTER THE STORM HAS PASSED...AND THEN CALL THE NATIONAL WEATHER
SERVICE TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6.

&&

LAT...LON 3228 8351 3244 8360 3261 8326 3261 8324
3252 8319 3242 8314 3244 8317 3237 8325
TIME...MOT...LOC 2218Z 244DEG 34KT 3240 8345

$$
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Severe Thunderstorm Warning and a Tornado Warning have been issued in central GA, just to our south.
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Quoting Bordonaro:
Tornado Watch for far S FL has been cancelled!!
it has passed
Member Since: July 15, 2006 Posts: 169 Comments: 53296
Tornado Watch for far S FL has been cancelled!!
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Long range radar from Tampa, FL shows another possible squall line trying to develop out in the Western Gulf and coming ashore the Florida Gulf Coast in the next couple hours.
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Thankfully, it appears the severe weather threat has diminshed over S FL. Unfortunately, the severe weather threat appears to be for parts of GA, SC, TN and KY!
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Quoting TampaTom:


Wow, that's a little more reasonable...


Gotta be careful looking at personal weather station reports, not everyone properly calibrates their elevation setting on their stations' barometers (or maybe doesn't know how to).
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Quoting 47n91w:


That personal weather station seems to be a bit off. Here's the Kansas City airport's current reading:

29.63


Wow, that's a little more reasonable...
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Here's the GFS velocity potential (upward motion) forecast for the next 15 days. Notice the current greens (net upward motion) over the central and eastern Pacific, brought on by the recent negative SOI burst which came across the equatorial Pacific, personified by Invest 90C/94P which became TC Sarah.

The GFS forecast shows this pattern leaning the opposite direction by the end of this month. Notice the greens gradually migrating westward out of the central Pacific and into the western Pacific, with more oranges (net subsidence) appearing in the central-eastern Pacific. These are signs of the decaying El Nino, with the pattern over the equatorial Pacific starting to switch back to its normal mode, which features solid easterly trade winds across the Pacific. This promotes a normal Walker Circulation with convergence and upward motion over the west Pacific and Australia, and subsidence and upwelling west of South America.

The newly developing tropical cyclones in the south Pacific are evidence of the change beginning, as they represent the dominant area of upward motion in the south Pacific, and are forming and tracking further west, closer to Australia.

Member Since: November 24, 2005 Posts: 635 Comments: 26556
Quoting TampaTom:
WOW!

East Side, Kansas City, Missouri (PWS)
Updated: 9 min 20 sec ago
Overcast
43.2 °F
Overcast
Windchill: 43 °F
Humidity: 73%
Dew Point: 36 °F
Wind: Calm
Wind Gust: 0.0 mph
Pressure: 28.64 in (Falling)

Barometer's pretty low in Kansas City....


That personal weather station seems to be a bit off. Here's the Kansas City airport's current reading:

29.63
Member Since: Posts: Comments:
WOW!

East Side, Kansas City, Missouri (PWS)
Updated: 9 min 20 sec ago
Overcast
43.2 °F
Overcast
Windchill: 43 °F
Humidity: 73%
Dew Point: 36 °F
Wind: Calm
Wind Gust: 0.0 mph
Pressure: 28.64 in (Falling)

Barometer's pretty low in Kansas City....
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Storm Total, so far, at my location. Amazing.



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Tornado watch is active till 9pm as well
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Quoting cchsweatherman:


Looks like the storm threat may not be over for South Florida as more storms appear to be developing out in the SW Gulf. Right now, with a decent break opening over the Everglades, the atmosphere could destabilize once again leading to more storms this evening across South Florida.


...FAR S FL...
MID AFTERNOON REGIONAL RADARS INDICATED A BAND OF STRONG TO SEVERE
STORMS MOVING SSEWD ACROSS FAR S FL. AIR MASS AHEAD OF THIS
ACTIVITY REMAINS MODERATELY UNSTABLE AND STRONGLY SHEARED...
SUPPORTING THE THREAT FOR SEVERE STORMS UNTIL THIS ACTIVITY MOVES
OFFSHORE BY LATE AFTERNOON. SHOWERS/TSTMS WILL REMAIN POSSIBLE IN
THE WAKE OF THIS ACTIVITY...NWD ACROSS THE PENINSULA...AS FORCING
FOR ASCENT ATTENDANT TO SRN LOBE OF VORTICITY WITH TN/OH VALLEYS
SYSTEM SPREADS EWD. WEAK INSTABILITY WILL PRECLUDE A SEVERE WEATHER

THREAT WITH THAT ACTIVITY.

..PETERS.. 03/12/2010

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Quoting MiamiHurricanes09:
Good Afternoon everyone.

Apart from bracing for the strong thunderstorms that are heading towards me in Miami, it's that time of year that I give my predictions for the tropical season (2010).

Named Storms: 14

Hurricanes: 7

Major Hurricanes: 3

*Please give me your feedback on what YOU think will unfold.
The 10 year averages are 15.7, 8.5 and 3.7 so based purely on math, I'll predict 16, 9 and 4.
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Quoting Chicklit:

What will drawing in that big blob of moisture to the east do to the energy of that low?
maybe bomb it out widespread high impacting rain event follows
Member Since: July 15, 2006 Posts: 169 Comments: 53296
Quoting StormChaser81:


Looks like the storm threat may not be over for South Florida as more storms appear to be developing out in the SW Gulf. Right now, with a decent break opening over the Everglades, the atmosphere could destabilize once again leading to more storms this evening across South Florida.
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The MO-Low has bands and is rotating counter clockwise.

Member Since: July 11, 2006 Posts: 14 Comments: 11178
Quoting MiamiHurricanes09:
Good Afternoon everyone.

Apart from bracing for the strong thunderstorms that are heading towards me in Miami, it's that time of year that I give my predictions for the tropical season (2010).

Named Storms: 14

Hurricanes: 7

Major Hurricanes: 3

*Please give me your feedback on what YOU think will unfold.


my num are 19 named,7canes,and 5 majors
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Quoting TampaTom:


That's crazy watching that low dig south along the KS/MO border...

What will drawing in that big blob of moisture to the east do to the energy of that low?
Member Since: July 11, 2006 Posts: 14 Comments: 11178
Member Since: July 15, 2006 Posts: 169 Comments: 53296
Quoting Chicklit:
Holy Cow, check this out!
Speaking of Auntie Em!

Link


That's crazy watching that low dig south along the KS/MO border...
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holy cow just passed by a tornado on 8th street and 137th. It was no less than 100 yards from touching down over us while at a red light. I've never been that close to one ever. Wow!
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Holy Cow, check this out!
Speaking of Auntie Em!
Seems to be a lot of energy focused around Kansas City.
Link
Member Since: July 11, 2006 Posts: 14 Comments: 11178
<
Member Since: July 15, 2006 Posts: 169 Comments: 53296
Squall line starting to weaken.
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Quoting cchsweatherman:


Thanks. As far as Auntie Em, there's a question I can't answer. lol

How many people in the Miami area are clicking their heels, and saying "there's no place like home" right now?
Member Since: Posts: Comments:
#77 Thanks Tom for a reference that helps throw light on why there are such extreme views on this issue.


Quoting TampaTom:
I don't want to post this and throw a match into the AGW debate here...

But, this was a very interesting article here in the St. Pete Times about the TV forecasters in the Tampa Bay area...

Outlook Cloudy on Climate
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Quoting Grothar:


Well CC, it is 2:20 right now and really looks nasty. Good call on this one! You posted this around 12:30. The squall line is approaching as we speak. Where is Auntie Em when you need her? Thanks for the info.


Thanks. As far as Auntie Em, there's a question I can't answer. lol
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Quoting cchsweatherman:


When the squall line approaches, it will interact with the boundary across Broward County and actually intensify. The 8AM EST Miami sounding showed very favorable conditions to not only support, but sustain strong to severe thunderstorms. It appears the worst weather will be in our area starting around 2PM and lasting through to the evening hours. Based upon radar, it appears that there will be damaging wind gusts, torrential downpours, and even an isolated tornado. Just keep an eye to the sky and stay alert for any warnings.


Well CC, it is 2:20 right now and really looks nasty. Good call on this one! You posted this around 12:30. The squall line is approaching as we speak. Where is Auntie Em when you need her? Thanks for the info.
Member Since: July 17, 2009 Posts: 69 Comments: 25390
Quoting TampaTom:
I don't want to post this and throw a match into the AGW debate here...

But, this was a very interesting article here in the St. Pete Times about the TV forecasters in the Tampa Bay area...

Outlook Cloudy on Climate
Thanks Tom...interesting article.
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Quoting JeffMasters:
According to a statement put out by MetSul Meteorologia, a Brazilian weather company, this week's Brazilian storm is now named "Tropical Storm Anita:"

The regional weather centers and the private weather enterprises of both Rio Grande do Sul and Santa Catarina, southernmost Brazilian states, in a joint decision, named Anita the rare tropical storm of March 9th and 10th in the coastal areas of the region. The name was chosen considering a historic figure of Rio Grande do Sul and Santa Catarina, both states affected by the tropical cyclone. Anita Garibaldi (1821-1849) was a heroine of the Farroupilha Revolution (1835-1845), one of the most important events in the Brazilian history that took place in the Southern part of the country. Anita was used in the past to designate tropical cyclones in other basins: North Atlantic, the Pacific and the Indian Ocean.

Jeff Masters


Thank you for that interesting info Dr. Masters. I am glad they gave it a name.
Member Since: November 24, 2005 Posts: 635 Comments: 26556
Meteosat 0 degree RGB Composites Dust

Member Since: July 3, 2005 Posts: 421 Comments: 127626
Quoting SouthDadeFish:
Nice call cchs. You were right about that hook echo.


Thanks.
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URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 33
NWS STORM PREDICTION CENTER NORMAN OK
150 PM EST FRI MAR 12 2010

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

SOUTHEAST FLORIDA
COASTAL WATERS

EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 150 PM UNTIL 900
PM EST.

TORNADOES...HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 50 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 65 MILES WEST OF MIAMI
FLORIDA TO 20 MILES EAST OF MIAMI FLORIDA. FOR A COMPLETE
DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE
(WOUS64 KWNS WOU3).

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND 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.

OTHER WATCH INFORMATION...CONTINUE...WW 32...

DISCUSSION...ORGANIZED LINE OF STORMS WILL CONTINUE TO SURGE SEWD
ALONG INTERSECTION WITH PRE-EXISTING OUTFLOW BOUNDARY. ENHANCED
LOW-LEVEL SHEAR ON THE IMMEDIATE COOL SIDE OF THE BOUNDARY WILL
SUPPORT A THREAT FOR ROTATING STORMS IN THE LINE...ALONG WITH THE
LIKELIHOOD OF DAMAGING WINDS FOR THE NEXT COUPLE OF HOURS.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 29035.
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URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 33
NWS STORM PREDICTION CENTER NORMAN OK
150 PM EST FRI MAR 12 2010


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

SOUTHEAST FLORIDA
COASTAL WATERS

EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 150 PM UNTIL 900
PM EST.

TORNADOES...HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 50 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 65 MILES WEST OF MIAMI
FLORIDA TO 20 MILES EAST OF MIAMI FLORIDA. FOR A COMPLETE
DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE
(WOUS64 KWNS WOU3).

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND 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.

OTHER WATCH INFORMATION...CONTINUE...WW 32...

DISCUSSION...ORGANIZED LINE OF STORMS WILL CONTINUE TO SURGE SEWD
ALONG INTERSECTION WITH PRE-EXISTING OUTFLOW BOUNDARY. ENHANCED
LOW-LEVEL SHEAR ON THE IMMEDIATE COOL SIDE OF THE BOUNDARY WILL
SUPPORT A THREAT FOR ROTATING STORMS IN THE LINE...ALONG WITH THE
LIKELIHOOD OF DAMAGING WINDS FOR THE NEXT COUPLE OF HOURS.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 29035.
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Nice call cchs. You were right about that hook echo.
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Quoting CyclonicVoyage:
Organizing further north now, may need to extend the SVRWNG
Yes, I saw that, severe weather is extending as far north as West Palm Beach.
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Tornado Warning
TORNADO WARNING
FLC011-121915-
/O.NEW.KMFL.TO.W.0004.100312T1839Z-100312T1915Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MIAMI FL
139 PM EST FRI MAR 12 2010

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

* TORNADO WARNING FOR...
NORTHWEST BROWARD COUNTY IN SOUTHEAST FLORIDA...

* UNTIL 215 PM EST

* AT 137 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO OVER
NORTHWESTERN BROWARD COUNTY...MOVING EAST TO SOUTHEAST AT 35 MPH.

THIS STORM IS ALSO CAPABLE OF PRODUCING LARGE HAIL...AND DAMAGING
WINDS IN EXCESS OF 60 MPH.

* THE TORNADO WILL BE NEAR...
RURAL NORTHWEST BROWARD COUNTY
AND SURROUNDING COMMUNITIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE NEAR THE PATH OF A TORNADO...SEEK SHELTER IN A STURDY
BUILDING ON THE LOWEST FLOOR...AWAY FROM OUTSIDE WALLS AND WINDOWS.
GET UNDER A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. USE
BLANKETS OR PILLOWS TO COVER YOUR BODY AND STAY AWAY FROM WINDOWS.

REPORT SEVERE WEATHER OR DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY
OR YOUR COUNTY EMERGENCY MANAGEMENT. THEY WILL RELAY YOUR REPORT TO
THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN MIAMI.

&&

LAT...LON 2625 8048 2616 8045 2615 8051 2627 8078
2632 8074
TIME...MOT...LOC 1839Z 291DEG 32KT 2628 8070

$$

BAXTER
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91. JeffMasters (Admin)
According to a statement put out by MetSul Meteorologia, a Brazilian weather company, this week's Brazilian storm is now named "Tropical Storm Anita:"

The regional weather centers and the private weather enterprises of both Rio Grande do Sul and Santa Catarina, southernmost Brazilian states, in a joint decision, named Anita the rare tropical storm of March 9th and 10th in the coastal areas of the region. The name was chosen considering a historic figure of Rio Grande do Sul and Santa Catarina, both states affected by the tropical cyclone. Anita Garibaldi (1821-1849) was a heroine of the Farroupilha Revolution (1835-1845), one of the most important events in the Brazilian history that took place in the Southern part of the country. Anita was used in the past to designate tropical cyclones in other basins: North Atlantic, the Pacific and the Indian Ocean.

Jeff Masters
Organizing further north now, may need to extend the SVRWNG
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Member Since: July 3, 2005 Posts: 421 Comments: 127626
On radar, there appears to be a TVS developing on the squall line crossing into NW Broward County. You can clearly see it where the line has kinked and appears to have a hook shape.
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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.