March is the 13th warmest on record; major tornado outbreak expected

By: Dr. Jeff Masters , 25. huhtikuuta 2011 klo 12:30 (GMT)

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March 2011 was the globe's 13th warmest March on record, according to the National Oceanic and Atmospheric Administration (NOAA) National Climatic Data Center (NCDC). NASA's Goddard Institute for Space Studies rated March the 9th warmest on record. March 2011 global ocean temperatures were the 12th warmest on record, and land temperatures were the 12th warmest on record. Global satellite-measured temperatures for the lowest 8 km of the atmosphere were below average, the 12th or 15th coolest in the 34-year record, according to Remote Sensing Systems and the University of Alabama Huntsville (UAH). The global cool-down from November, which was the warmest November on record for the globe, was due in large part to a La Niña episode in the Eastern Pacific. The large amount of cold water that upwells to the surface during a La Niña typically causes a substantial cool-down in global temperatures. The coldest place on the globe in March, relative to average, was Central and Western Canada. The Asian portion of Russia was exceptionally warm, relative to average.

Our weather historian, Christopher C. Burt, has a nice summary of some of the remarkable weather extremes of March 2011.


Figure 1. Departure of temperature from average for March 2011. Image credit: National Climatic Data Center (NCDC).

Congo sets its all-time heat record
The Democratic Republic of the Congo, the world's 12th largest country, set a new all-time extreme heat record on March 8, 2011, when the temperature hit 39.2°C (102.6°F) at M'Pouya. Congo's previous all-time hottest temperature was 39.0°C (102.2°F) at Impfondo on May 14, 2005. Congo is the first nation to set an all-time extreme heat or cold record in 2011. Last year, a record 19 nations, plus the UK's Ascension Island territory, set all-time extreme heat records. I thank weather records researchers Maximiliano Herrera, Christoper C. Burt, and Howard Rainford for their assistance researching these records.

A moderately warm and wet March for the U.S.
For the contiguous U.S., March temperatures were warmer than average, ranking the 39th warmest in the 117-year record, according to the National Climatic Data Center. Only New Mexico had a top ten warmest March; no states had a top ten coldest March. Precipitation was above average, with the month ranking as the 34th wettest March since 1895. Texas had its driest March on record, and top ten driest Marches were experienced in New Mexico and Oklahoma. Washington, Oregon, California, and Pennsylvania had top ten wettest Marches.

La Niña remains weak
La Niña conditions remain weak over the Eastern Pacific, with sea surface temperatures (SSTs) in the equatorial Eastern Pacific about 0.6°C below average. An animation of SSTs since late December shows the weakening La Niña nicely. Springtime is the most common time for a La Niña event to end; since 1950, half of all La Niñas ended in March, April, or May. The weakness displayed by the current La Niña event has prompted NOAA's Climate Prediction Center to predict that La Niña will be gone by June.

Sea ice extent in the Arctic 2nd lowest on record during March
March 2011 Northern Hemisphere sea ice extent was second lowest on record, according to the National Snow and Ice Data Center. Satellite records extend back to 1979. This breaks a string of three consecutive months of record low Arctic sea ice cover.

Major tornado outbreak expected today through Wednesday
Another huge tornado outbreak is likely this week over the U.S., as a strong storm system that is developing over the Mississippi Valley today moves slowly eastwards during the week. A 3-day tornado total of over 100 twisters is quite possible today through Wednesday. NOAA's Storm Prediction Center has issued its "moderate risk" forecast for severe weather today, centered over Arkansas. This region has a significant risk of tornadoes, some of them strong EF-2 and EF-3 strength. A more serious threat of severe weather exists for Tuesday over Arkansas and surrounding states, with the Storm Prediction Center calling the situation "potentially significant/dangerous." The heightened severe weather risk extends through Wednesday, with a moderate risk of tornadoes and severe weather in Tennessee and surrounding states. Preliminary tornado reports for the year 2011 show that this year is probably already the busiest tornado season on record for this point in the season. This week's action will substantially pad the record.


Figure 2. Severe weather threat for Monday, April 25, 2011.

St. Louis tornado rated an EF-4
A violent EF-4 tornado ripped through St. Louis near 8pm local time Friday night, carving a 22-mile path of destruction up to 0.4 miles wide, and severely damaging Lambert International Airport. The airport, the world's 30th busiest, was closed much of the weekend, but has now re-opened. The tornado, rated an EF-2 when it hit the airport, ripped off the roof from Concourse C, blew out more than half of the windows in the main terminal, and moved an aircraft that was parked at a gate twenty feet. The tornado also passed over a residential area just west of the airport in the community of Bridgton, causing severe EF-4 damage, according to the National Weather Service office in St. Louis. This was the first violent EF-4 tornado of the year.


Figure 3.
Remarkable video from a security camera at the St. Louis airport showing the roof being torn off Concourse C.


Figure 4.Before and after damage photo of Beaverton Drive in Bridgeton, Missouri, after the April 22, 2011 tornado. This damage was rated EF3. Image credit: National Weather Service office in St. Louis and Google.

Jeff Masters

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713. atmoaggie
26. huhtikuuta 2011 klo 14:51 (GMT)
new blog
Member Since: 16.08.2007 Posts: 6 Comments: 12461
712. jeffs713
26. huhtikuuta 2011 klo 14:47 (GMT)
Quoting atmoaggie:
Wow. Thought I'd see more shear at Shreveport than this...


Looks more like speed shear, rather than directional shear.
Member Since: 3.08.2008 Posts: 16 Comments: 5793
711. atmoaggie
26. huhtikuuta 2011 klo 14:41 (GMT)
Wow. Thought I'd see more shear at Shreveport than this...

Member Since: 16.08.2007 Posts: 6 Comments: 12461
710. atmoaggie
26. huhtikuuta 2011 klo 14:37 (GMT)
Quoting aquak9:
Good drenching rain band headed into the Florida parishes.

what part of Florida is that? wherever you are, I do hope you get some rain, as long as it's in Florida.
lol. That is a group of parishes in LA that once were part of the Florida territory and, for 90 days, the Republic of West Florida.


Including: Baton Rouge, Slidell, Bay St. Louis, Biloxi, Mobile.

The Louisiana Purchase did not include any of present-day LA north of Lake P and east of the MS river. (Howdy from just west of the center...)
Member Since: 16.08.2007 Posts: 6 Comments: 12461
707. BahaHurican
26. huhtikuuta 2011 klo 14:23 (GMT)
Quoting CybrTeddy:
Video from storm chasers yesterday's tornado.
Link
This guy is crazy... u do not sit there saying I gatta get outta here while NOT DRIVING and continuing to film.... crazy, man...

Member Since: 25.10.2005 Posts: 19 Comments: 20742
706. jeffs713
26. huhtikuuta 2011 klo 14:22 (GMT)
Quoting RitaEvac:
My NOAA alarm went off last night around 1:55AM and heard Severe Thunderstorm Watch, and I just rolled over and thought, yea right, gotta cap over us people. Didn't realize it was that close and yet so far at the same time, man they got good rains up there, and widespread too.


Yeah... just missed most of the metro area. On another note, it was humid enough this morning to register as "rainfall" at a local PWS.
Member Since: 3.08.2008 Posts: 16 Comments: 5793
705. TampaSpin
26. huhtikuuta 2011 klo 14:11 (GMT)
http://www.disastercenter.com/tornado/tornad2.htm
Member Since: 2.09.2007 Posts: 177 Comments: 20430
704. BahaHurican
26. huhtikuuta 2011 klo 14:08 (GMT)
Quoting CyclonicVoyage:
So close yet, so far away. Grrrrrrr


Exactly my thoughts this a.m. I am asking "where's my rain" and not getting much of an answer....

Another beautiful spring day here. Thoughts and prayers out to pple in the storm ridden areas today...
Member Since: 25.10.2005 Posts: 19 Comments: 20742
702. RitaEvac
26. huhtikuuta 2011 klo 13:59 (GMT)
Well the cap did break over SE TX, just not the Houston/Galveston area.
Member Since: 14.07.2008 Posts: 1 Comments: 9625
701. TampaSpin
26. huhtikuuta 2011 klo 13:59 (GMT)
Quoting sammywammybamy:
post it on the blog too....


If someone emails me i will post it on the Blog......i also started a forum on my site....if anyone wants to post their findings and results there for everyone to view!
Member Since: 2.09.2007 Posts: 177 Comments: 20430
700. RitaEvac
26. huhtikuuta 2011 klo 13:56 (GMT)
My NOAA alarm went off last night around 1:55AM and heard Severe Thunderstorm Watch, and I just rolled over and thought, yea right, gotta cap over us people. Didn't realize it was that close and yet so far at the same time, man they got good rains up there, and widespread too.

Member Since: 14.07.2008 Posts: 1 Comments: 9625
698. TampaSpin
26. huhtikuuta 2011 klo 13:52 (GMT)
I don't have time today, but i got a job for someone to do! I would love to see the comparison of springs with high tornado numbers and how they compare to the upcoming Hurricane Season. May not be any correlation at all, but would be interesting to plot those years out and compare. If anyone does this please zip me an email. Thanks!
Member Since: 2.09.2007 Posts: 177 Comments: 20430
697. RitaEvac
26. huhtikuuta 2011 klo 13:50 (GMT)
You gotta be effing kidding me? They got this much rain last night?




Member Since: 14.07.2008 Posts: 1 Comments: 9625
696. jeffs713
26. huhtikuuta 2011 klo 13:50 (GMT)
Quoting RitaEvac:
Guarantee you Jeff it's salt buildup on lines
Oh, I know. And I wasn't talking about oil prices. i was talking about gas prices. It will be seen as a "disruption of supply", and therefore a critical possible maybe shortage of gasoline, which is requires an urgent and entirely unreasonable jacking up of prices.
Member Since: 3.08.2008 Posts: 16 Comments: 5793
695. TampaSpin
26. huhtikuuta 2011 klo 13:48 (GMT)


It really does not stop in the same areas for the next 10 days.......maybe a 1 or 2 day breather, then it starts all over again!
Member Since: 2.09.2007 Posts: 177 Comments: 20430
694. RitaEvac
26. huhtikuuta 2011 klo 13:47 (GMT)
Return flow already?! look at the showers moving north near Lake Charles, LA

Member Since: 14.07.2008 Posts: 1 Comments: 9625
693. TampaSpin
26. huhtikuuta 2011 klo 13:45 (GMT)
Member Since: 2.09.2007 Posts: 177 Comments: 20430
692. AussieStorm
26. huhtikuuta 2011 klo 13:45 (GMT)
Quoting TampaSpin:
LOOK AT THESE RAINFALL TOTALS............OMG!!








I was watching that radar last night, compared then to now, much more rain, only 2 little spots of 15+, now alot
Member Since: 30.09.2007 Posts: 9 Comments: 15750
691. RitaEvac
26. huhtikuuta 2011 klo 13:44 (GMT)
Stephenville, TX


Member Since: 14.07.2008 Posts: 1 Comments: 9625
690. TampaSpin
26. huhtikuuta 2011 klo 13:42 (GMT)
Quoting emcf30:


The Vilonia 3D



What is the best and most economical for your money Weather radar program that you all use!
Member Since: 2.09.2007 Posts: 177 Comments: 20430
689. RitaEvac
26. huhtikuuta 2011 klo 13:41 (GMT)
Guarantee you Jeff it's salt buildup on lines
Member Since: 14.07.2008 Posts: 1 Comments: 9625
688. RitaEvac
26. huhtikuuta 2011 klo 13:40 (GMT)
684, OPEC just hasn't heard yet. But when they do, that'll give them reason to spike em
Member Since: 14.07.2008 Posts: 1 Comments: 9625
687. TampaSpin
26. huhtikuuta 2011 klo 13:38 (GMT)


SEVERE Flooding might be an under statement! WOW! Its just not gonna stop it seems. My Mother in Indiana has to drive 30 miles around flooding just to get to certain places!
Member Since: 2.09.2007 Posts: 177 Comments: 20430
686. emcf30
26. huhtikuuta 2011 klo 13:37 (GMT)


The Vilonia 3D
Member Since: 7.08.2010 Posts: 0 Comments: 1933
684. jeffs713
26. huhtikuuta 2011 klo 13:34 (GMT)
Quoting RitaEvac:
TEXAS CITY, TX (KTRK) -- Power outages at plants in Texas City have prompted the second shelter-in-place in the last few hours there, and schools in the area have either been canceled or delayed.


Texas City Homeland Security coordinator Bruce Clawson says the second Level 3 emergency advisory took effect around 5:30am Tuesday after a Valero refinery lost power. The Level 3 means residents should stay indoors.

Texas City ISD has canceled classes for the day and La Marque ISD will delay the start of school until 10am, according to district officials.

Texas City BP plant incident prompts shelter in place

The issues involve four facilities in the area. According to the office of emergency management, Valero is attempting to shut down and the Marathon Oil plant is in process of being shut down. Dow Chemical and the BP plant are both down.

Officials say the shelter-in-place and school closures are due to possible issues with air quality around the facilities. The facilities are conducting controlled flares to burn off residual product, reducing the risk of an explosion. The current shelter-in-place is expected to be in effect for the next few hours.

Road closures

Right now, portions of Highway 519 are being blocked near the BP plant. The barricades begin where Highway 519 intersects with Highway 146.

Earlier shelter-in-place

As for the first power loss and shelter-in-place, BP officials tell us their Texas City refinery and chemical plant lost power around 10:55pm. The site immediately called the city and declared a Level 3 emergency. The city had called for a shelter-in-place for its residents, which was lifted around 3am.

BP decided to burn off excess material when the refinery lost power. It's still not clear what caused the power loss.

According to BP officials, there was a small fire on one of the pipestills right after the electrical incident occurred. BP's fire department responded and quickly extinguished the fire.

Plant officials don't know why the plant lost its power, but it did shut down every unit, Texas City Spokesman George Fuller said. Meanwhile, heavy flares shot into the sky for a burn off.


No evacuations were ordered for nearby residents. There are no reported injuries at this time.

The site has also initiated environmental monitoring in areas around the refinery and has shared results with city leaders on an ongoing basis. The cause of the incident remains under review.


Gas prices will now spike by 10 cents in 3... 2... 1...
Member Since: 3.08.2008 Posts: 16 Comments: 5793
683. emcf30
26. huhtikuuta 2011 klo 13:32 (GMT)
After a very active Monday, a possibly even more significant severe weather episode is on tap for Tuesday and Wednesday. Unfortunately many of the same areas hit hard on Monday will be under the gun late Tuesday into Wednesday. A very complex pattern is taking shape for what could be a significant tornado outbreak. Several strong shortwave impulses have been rotating around the base of a Longwave trough situated across the Plains. One such impulse has moved through Monday evening and led to a surface low forming in Missouri. This low is expected to move quickly off to the Northeast and occlude as the shortwave energy quickly ejects.

This will set the stage for an even stronger jet streak to enter the longwave trough.



This intense jet energy will help create very strong upper level dynamics as the trough becomes negatively tilted. Furthermore, the extreme upper level divergence will help create a near perfect environment for strong cyclogenesis (formation of a surface low). This will set the stage for explosive convective development on both Tuesday and Wednesday.
Member Since: 7.08.2010 Posts: 0 Comments: 1933
682. emcf30
26. huhtikuuta 2011 klo 13:23 (GMT)
I see they are trying to post the TRAM again after NOAA asked them not to. I have to admit, they been right on most of their predictions.
Facebook.
Tornado Risk Analysis Model
Now I am mad ... The project said N. Little Rock would be the worst spot for a deadly tornado and now we have one confirmed fatality from it. I'm working to bring it back ... it is needed. IMMEDIATE ALERT: T.R.A.M. is indicating a deadly, violent, a large tornado for Southern AR on Tuesday evening. Advise, from Nevada and Columbia Counties, East to the MS border and extreme N. Louisiana ...
Link
A tornado responsible for taking lives north of Little Rock, Arkansas is the reminder of how important advanced warnings are, before you even leave the morning of the event.

The Tornado Risk Analysis Model predicts locations of the strongest tornado possibilities and tries to give advanced warnings. The goal of the project is having this vital information before you even leave that morning.

T.R.A.M. has indicated a violent, large, and deadly tornado situation across Southern Arkansas on Tuesday evening. This situation will be one of the strongest tornadoes to hit the Southern part of the state in many years if everything goes according to T.R.A.M.

Details ... The Tornado Risk Analysis Model predicts weak/mod tornado dynamics from back in Northeastern Texas to Southeastern Oklahoma, moving eastward through Central and Northern Arkansas over the afternoon.
Intense instability in Southern Arkansas will contribute to this violent situation with the lack of storms over the morning and early afternoon there.

A storm system will develop in Northeastern Texas, moving NE into Southwestern Arkansas, gaining strength as the hours move by. This storm system will move through Southern Arkansas with violent and deadly tornadoes, curving from due east to east-northeast to the Mississippi River.

Advise that a 998MB surface low is developing just NW of this storm and this will increase the low level shear

A NOAA Particular Dangerous Situation Tornado Watch box will be needed ... however TRAM issues boxes and the rarely seen Enhanced Tornado Watch box has been simulated.

Member Since: 7.08.2010 Posts: 0 Comments: 1933
681. Jedkins01
26. huhtikuuta 2011 klo 13:20 (GMT)
Quoting RastaSteve:
Looks like some strong to severe wx is to be expected in C and N FL come Thursday afternoon. Very warm moist/unstable enviroment sitting over FL so as the front moves in we should see lots storms area wide Thursday. Picked 1.02" yesterday at my work but only .14" in the rain gauge at my house.




I can't imagine there will be much of a severe threat Thursday. Instability and moisture will be high but that doesn't seem to matter with cold fronts unless they have lots of upper support and dynamics and this one will be too weak to have any support or dynamics. Just moisture and instability.
Member Since: 21.08.2008 Posts: 0 Comments: 6884
680. RitaEvac
26. huhtikuuta 2011 klo 13:11 (GMT)
TEXAS CITY, TX (KTRK) -- Power outages at plants in Texas City have prompted the second shelter-in-place in the last few hours there, and schools in the area have either been canceled or delayed.


Texas City Homeland Security coordinator Bruce Clawson says the second Level 3 emergency advisory took effect around 5:30am Tuesday after a Valero refinery lost power. The Level 3 means residents should stay indoors.

Texas City ISD has canceled classes for the day and La Marque ISD will delay the start of school until 10am, according to district officials.

Texas City BP plant incident prompts shelter in place

The issues involve four facilities in the area. According to the office of emergency management, Valero is attempting to shut down and the Marathon Oil plant is in process of being shut down. Dow Chemical and the BP plant are both down.

Officials say the shelter-in-place and school closures are due to possible issues with air quality around the facilities. The facilities are conducting controlled flares to burn off residual product, reducing the risk of an explosion. The current shelter-in-place is expected to be in effect for the next few hours.

Road closures

Right now, portions of Highway 519 are being blocked near the BP plant. The barricades begin where Highway 519 intersects with Highway 146.

Earlier shelter-in-place

As for the first power loss and shelter-in-place, BP officials tell us their Texas City refinery and chemical plant lost power around 10:55pm. The site immediately called the city and declared a Level 3 emergency. The city had called for a shelter-in-place for its residents, which was lifted around 3am.

BP decided to burn off excess material when the refinery lost power. It's still not clear what caused the power loss.

According to BP officials, there was a small fire on one of the pipestills right after the electrical incident occurred. BP's fire department responded and quickly extinguished the fire.

Plant officials don't know why the plant lost its power, but it did shut down every unit, Texas City Spokesman George Fuller said. Meanwhile, heavy flares shot into the sky for a burn off.


No evacuations were ordered for nearby residents. There are no reported injuries at this time.

The site has also initiated environmental monitoring in areas around the refinery and has shared results with city leaders on an ongoing basis. The cause of the incident remains under review.
Member Since: 14.07.2008 Posts: 1 Comments: 9625
679. Chicklit
26. huhtikuuta 2011 klo 13:10 (GMT)
Quoting IKE:

That likely explains it.

rofl...I sure hope Jeff posts a new blog today.
Lots going on. Back to spreadsheet madness for me.
Have a great day everyone.
DON'T DRIVE INTO WATER!!!!

Member Since: 11.07.2006 Posts: 14 Comments: 11047
678. CybrTeddy
26. huhtikuuta 2011 klo 13:07 (GMT)
Video from storm chasers yesterday's tornado.
Link
Member Since: 8.07.2005 Posts: 259 Comments: 23015
677. jeffs713
26. huhtikuuta 2011 klo 13:03 (GMT)
Quoting RandomText:


What was said on TWC and a couple other sources in Arkansas is that it "Scoured the roads".

At which point, Jim Cantore said that the last time such had happened was in the Moore tornado in 1999, I think.

The time before that was the Jarrell tornado in 1997.


The "scoured roads" comment was probably later mis-quoted as "scouring concrete" (which is extremely unlikely).
I think you are right, and that is what I suspected. An EF3 or 4 can scour (asphalt) roads, but usually that is only done by embedded vorticies. More likely is that we had our first EF5 of the year if it pulled asphalt up from a road.
Member Since: 3.08.2008 Posts: 16 Comments: 5793
676. RitaEvac
26. huhtikuuta 2011 klo 13:03 (GMT)
Mean while the drought is has caused salt buildup on transmission lines near the TX coast to cause power to go out at all refineries in Texas City.

This is unconfirmed but why else would power go out to all plants?
Member Since: 14.07.2008 Posts: 1 Comments: 9625
675. IKE
26. huhtikuuta 2011 klo 13:02 (GMT)

Quoting emcf30:
Yea jeff havent heard of concrete being torn except on here this am, The reports last where the asphalt was scoured on one of the roads. I would love to see a link and some photos of that.
That likely explains it.
Member Since: 9.06.2005 Posts: 23 Comments: 37858
674. emcf30
26. huhtikuuta 2011 klo 13:00 (GMT)
Yea jeff havent heard of concrete being torn except on here this am, The reports last where the asphalt was scoured on one of the roads. I would love to see a link and some photos of that.
Member Since: 7.08.2010 Posts: 0 Comments: 1933
670. waterskiman
26. huhtikuuta 2011 klo 12:56 (GMT)
Relentless, driving rain is pounding southern Missouri, leaving levees ready to burst and sending residents to higher ground. And the rain isn't expected to stop for days.

Tuesday brought the promise of more showers and thunderstorms to the area around Poplar Bluff in southeast Missouri It's one of many river towns in the Mississippi and Ohio river valleys threatened by floodwaters.

The already swollen Black River is rising even further, pouring over more than three dozen spots along the levee that protects the southern part of the town of 17,000 residents.

At least five people were killed in Arkansas.

Faulkner County spokesman Stephan Hawks says one person died in the central Arkansas town of Vilonia, where a path of damage stretches three miles wide and 15 miles long. It wasn't immediately clear how the person died.

Authorities have closed off the roadways leading into Vilonia, which residents say all but disappeared in the storms.

Several residents told The Associated Press that the storms damaged homes and business within the city limits. Hawks says nearby creeks are flooding their banks.

Another woman was killed when floodwaters swept her van off a roadway and into the Illinois River in northwestern Arkansas' Washington County.

The storms knocked down trees and powerlines, and more than 70,000 people are without power in Arkansas.

The governor has declared a statewide state of emergency in response to the tornadoes and flooding.

The flooding follows severe storms that began early last week. Again Monday, powerful storms ravaged Missouri, Arkansas, Kentucky, Texas, Tennessee and other states.

Member Since: 6.06.2010 Posts: 0 Comments: 4371
669. emcf30
26. huhtikuuta 2011 klo 12:56 (GMT)
I have a hard time believing the tornado was 3.5 miles wide. Sure there were high winds maybe this wide with inflow and all. Dr Forbes last night measured the signature last night when it was passing Vilonia and it was about 1 mile wide on radar but maybe less on the ground. JMO
Member Since: 7.08.2010 Posts: 0 Comments: 1933
668. Chicklit
26. huhtikuuta 2011 klo 12:55 (GMT)
Hi Rasta,
Yeah, news is surfacing about it. I suppose we'll know all about it later on.
I sure hope the rain you're forecasting for us here in Florida materializes. Though not before I get fill put in a big hole in my backyard!
Just had some guys pull out a bunch of brush in a crevice about 25 ft. by 12 ft. and trying to get them back now with fill yesterday and today before it starts raining and the bank up against the drain field falls in!
Imagine all the little catastrophes with all of that rain is wreaking havoc for a lot of people right now.
Member Since: 11.07.2006 Posts: 14 Comments: 11047
667. BobinTampa
26. huhtikuuta 2011 klo 12:55 (GMT)
Quoting MahFL:
I think 3.5 miles wide is false.



Maybe it traveled 3.5 miles on the ground?
Member Since: 14.08.2008 Posts: 0 Comments: 526
666. jeffs713
26. huhtikuuta 2011 klo 12:54 (GMT)
I'm not sure about you, but I'm pretty sure that Arkansas is calling "Uncle" right about now... They just got slapped with "High Risk" (second of the year) today, too.

I also noticed there is a little pocket of SE TX just outside the slight risk today... What the heck is it going to take to get rid of the cap? Do I really need to sacrifice a small animal (or irritating child) to the rain gods?
Member Since: 3.08.2008 Posts: 16 Comments: 5793
665. jeffs713
26. huhtikuuta 2011 klo 12:52 (GMT)
Quoting emcf30:




That purple spot on the hook image is likely higher reflectivity from the debris cloud. You usually only see those in the most intense of tornadoes (EF3+).

Also, I saw a comment (somewhere) on here, about the Vilonia tornado tearing concrete off the ground. I've heard of asphalt peeling in EF4-EF5, but concrete... not so much. (concrete won't peel like asphalt does - its physics are entirely different)
Member Since: 3.08.2008 Posts: 16 Comments: 5793
664. MahFL
26. huhtikuuta 2011 klo 12:52 (GMT)
The reuters info seems to be from last night, we yet to have see and pics or reports from daylight today.
Member Since: 9.06.2004 Posts: 0 Comments: 2912

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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.

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