Tornadoes rip Midwest, killing 9; heavy snow hits Upper Midwest

By: Dr. Jeff Masters , 3:05 PM GMT on February 29, 2012

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Strong tornadoes plowed through the Midwest U.S. last night and this morning, killing at least nine people. Six people died in Harrisburg, Illinois when a tornado hit near 5:37 am CST this morning, damaging or destroying 200 buildings. Another person was killed in southwest Missouri near Buffalo when a possible tornado ripped through a mobile home park. Thirteen others were injured in the mobile home park. Two others died in the Cassville and Puxico areas. A tornado also moved through downtown Branson, Missouri early this morning, causing heavy damage to the city's famous theaters, and injuring at least twelve people. A tornado plowed through the small town of Harveyville, Kansas (population 275), twenty miles southwest of Topeka, at 9:03 pm last night. The tornado destroyed 40 - 60% of the structures and injured ten, one critically. NOAA's Storm Prediction Center logged fifteen preliminary tornado reports yesterday and today.

The same storm system also brought the heaviest snows of the winter to portions of the Upper Midwest, which has received scant snowfall this winter. Blizzard warnings are posted in South Dakota this morning, where snowfall amounts of 6 - 10 inches are common. According to NOAA's latest storm summary, five states have experienced snowfall amounts of ten inches or more--Wisconsin, Minnesota, South Dakota, Michigan, and Nebraska. The highest snow amount as of 8 am CST was recorded at Tripoli, Wisconsin, where fourteen inches had fallen.


Figure 1. Radar image of the squall line that passed through Harrisburg, Illinois this morning, spawning a tornado that killed three people. The position of Harisburg is marked by a circle with a "+" symbol.


Figure 2. NOAA's Storm Prediction Center logged thirteen preliminary tornado reports yesterday.

More tornadoes likely today
The powerful late-winter storm system that spawned the deadly tornadoes will move eastwards, bringing snows of 5 - 10 inches to northern Wisconsin, northern Minnesota, Michigan's Upper Peninsula, and northern New England. The storm's cold front is triggering severe thunderstorms over much of Kentucky this morning, and these thunderstorms are expected to grow in severity and spawn more tornadoes this afternoon, once the heat of the day destabilizes the atmosphere. NOAA's Storm Prediction Center has posted tornado watches for portions of Arkansas, Missouri, Tennessee, Kentucky, and Ohio this morning, and has placed much of Tennessee and portions of surrounding states in their "Moderate Risk" area for severe weather today. Consult our Severe Weather Page and Interactive Tornado Page to follow today's severe weather.


Figure 3. NOAA's Storm Prediction Center has placed much of Tennessee and portions of surrounding states in their "Moderate Risk" area for severe weather, one level below the highest level of alert, "High Risk."

Jeff Masters

Big Flakes (papajuan)
Winter in Northern Minnesota
Big Flakes

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Haven't had a chance to look at weather lately. I can't remember such a deadly tornado outbreak in the Midwest in February!
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I haven't really been keeping an eye on SSTs much (save the Pacific, for obvious reasons), but I don't remember seeing the Gulf this warm a week or so ago:

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Quoting GeorgiaStormz:


forever is fine if you dont get bored


But given the way this world works, you would.
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Quoting KoritheMan:


I'd prefer to die in my sleep. I'd prefer any other method to be instantaneous and painless.

Besides, who doesn't want to prolong their life? I'm not like most people where I'd want to live forever, but I'm definitely not apt to end my life so early.


forever is fine if you dont get bored
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Quoting KoritheMan:


Haha, I forgot all about songify. Are these the same guys who did Double Rainbow and Bed Intruder?


Yup.
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Quoting yqt1001:


Reality hits u hard bro!



Haha, I forgot all about songify. Are these the same guys who did Double Rainbow and Bed Intruder?
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Sorry SPL, same here... looks like rain here... friday might be better tho...
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Quoting GeorgiaStormz:


Yeah, but if we are all going to die with nothing after, why not go out swirling in the center of a 2 mile wide EF-5?


I'd prefer to die in my sleep. I'd prefer any other method to be instantaneous and painless.

Besides, who doesn't want to prolong their life? I'm not like most people where I'd want to live forever, but I'm definitely not apt to end my life so early.
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Quoting KoritheMan:


Becauuuuuuuse...

...ya just might get it.

DUN DUN DUUUUUUN


Yeah, but if we are all going to die with nothing after, why not go out swirling in the center of a 2 mile wide EF-5?
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Quoting KoritheMan:


Becauuuuuuuse...

...ya just might get it.

DUN DUN DUUUUUUN


Reality hits u hard bro!

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Well it look like i git nothing tonight...no thunderstorms:/
Member Since: August 4, 2011 Posts: 46 Comments: 4486
417 flsky "Storm pics - very sad. Link"

Intense. Everybody oughtta scope them out.
Member Since: August 21, 2007 Posts: 0 Comments: 4860

MESOSCALE DISCUSSION 0191
NWS STORM PREDICTION CENTER NORMAN OK
0701 PM CST WED FEB 29 2012

AREAS AFFECTED...FAR NORTHEAST LA/CENTRAL MS

CONCERNING...SEVERE THUNDERSTORM WATCH 51...

VALID 010101Z - 010200Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 51
CONTINUES.

SEVERE TSTM WATCH 51 REMAINS IN EFFECT UNTIL 03Z...BUT THE SEVERE
THREAT SHOULD REMAIN LIMITED/ISOLATED THE REMAINDER OF THE EVENING.


WITHIN A BAND OF PRE-FRONTAL CONFLUENCE...TSTMS PERSIST IN A ENE-WSW
ORIENTED CORRIDOR MAINLY ACROSS EAST-CENTRAL MS. WANING LOW-LEVEL
CONVERGENCE AND A MODEST POST-SUNSET COOLING OF AN OTHERWISE
RELATIVELY MOIST /LOWER 60S F SURFACE DEWPOINTS/ BOUNDARY LAYER...IN
ADDITION TO A WARM/POOR LAPSE RATE LAYER BETWEEN 800-600 MB PER THE
00Z JACKSON OBSERVED SOUNDING...SHOULD RESULT IN A TEMPERED SEVERE
THREAT THE REMAINDER OF THE EVENING. IN SPITE OF THESE THERMODYNAMIC
TRENDS...ROBUST VERTICAL SHEAR DOES PERSIST SUCH THAT A DAMAGING
WIND/BRIEF TORNADO THREAT REMAINS BUT ON AN INCREASINGLY LIMITED
BASIS.


..GUYER.. 03/01/2012

Winding down. Winding out... winding away...
Member Since: April 29, 2006 Posts: 154 Comments: 18755
Quoting BobWallace:


See that pile of bricks that used to be a church?

Imagine yourself under it.

Be careful what you wish for....


Becauuuuuuuse...

...ya just might get it.

DUN DUN DUUUUUUN
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Quoting MAweatherboy1:
Good evening.
What a tragic couple of days. Amazing severe weather for this early in the season


good evenin bo!! Let me ask you a question...How are YOU tonight?
Member Since: August 4, 2011 Posts: 46 Comments: 4486
444. wxmod
Go to Google image search and type in "china chemical plant fire"
Look at the images carefully. They are not from the chemical plant fire yesterday. They are from different events in China. They seem to have a huge chemical plant fire every few months.
AMAZING!!!
Member Since: October 4, 2011 Posts: 0 Comments: 1764
Quoting GeorgiaStormz:


Well, since nobody else wants it, it can hit me and you and we'll be good =)


YEAH BOY!!

Here is what you send me, and i return the favor:

65kt wind gusts
Some mamatus clouds
ALOT of lightning and thunder

----

Sound good?
Member Since: August 4, 2011 Posts: 46 Comments: 4486
Good evening.
What a tragic couple of days. Amazing severe weather for this early in the season
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Irina
Member Since: August 4, 2011 Posts: 46 Comments: 4486
Quoting SPLbeater:
\

wish it on me i dont care lol


Well, since nobody else wants it, it can hit me and you and we'll be good =)
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Quoting GeorgiaStormz:
Storms are dying.
Hoping they rejuvenate over me. I wont wish it on anyone else. :)
\

wish it on me i dont care lol
Member Since: August 4, 2011 Posts: 46 Comments: 4486
This could be the final line:
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SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
802 PM EST WED FEB 29 2012

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
BUNCOMBE COUNTY IN WESTERN NORTH CAROLINA...
NORTHERN HAYWOOD COUNTY IN WESTERN NORTH CAROLINA...
MADISON COUNTY IN WESTERN NORTH CAROLINA...
NORTHEASTERN SWAIN COUNTY IN WESTERN NORTH CAROLINA...

* UNTIL 900 PM EST

* AT 757 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 10
MILES NORTHWEST OF NEWFOUND GAP...OR 5 MILES SOUTHWEST OF
GATLINBURG...MOVING EAST AT 65 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
WATERVILLE...COVE CREEK...LUCK...SPRING CREEK...HOT SPRINGS...
CANTO...WALNUT...LEICESTER...WHITEROCK...MARSHALL. ..I-26 AT I-40...
WOODFIN...UNC ASHEVILLE...DOWNTOWN ASHEVILLE...WEAVERVILLE...
BILTMORE FOREST...MARS HILL...ASHEVILLE MALL...FAUST...
BARNARDSVILLE...FAIRVIEW...SWANNANOA...MONTREAT AND BLACK MOUNTAIN
Member Since: June 1, 2010 Posts: 0 Comments: 159


MESOSCALE DISCUSSION 0190
NWS STORM PREDICTION CENTER NORMAN OK
0630 PM CST WED FEB 29 2012

AREAS AFFECTED...SERN AND ERN OH / MUCH OF WV

CONCERNING...TORNADO WATCH 49...

VALID 010030Z - 010100Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 49 CONTINUES.

THE SEVERE THREAT AND CORRESPONDING TORNADO RISK HAVE DIMINISHED
CONSIDERABLY ACROSS THE UPPER OH VALLEY REGION. BOUNDARY LAYER
DESTABILIZATION COINCIDENT WITH LOSS OF DAYTIME HEATING WILL ACT TO
STRONGLY DIMINISH ANY REMAINING STRONG TO SEVERE TSTM RISK --WW 49
MAY BE ALLOWED TO EXPIRE PRIOR TO 02Z EXPIRATION TIME.


LATEST SURFACE ANALYSIS SHOWS A PLUME OF HIGHER LOW LEVEL MOISTURE
/CHARACTERIZED BY DEWPOINTS RANGING FROM 50 DEG N TO UPPER 50S S/
AHEAD OF A DRYLINE-LIKE FEATURE EXTENDING SW-NE NEAR THE I-71
CORRIDOR IN OHIO. WEAK SURFACE-BASED CAPE /AOB 500 J/KG PER PIT
RAOB/-- WITHIN AN OTHERWISE STRONG SHEAR ENVIRONMENT-- WILL CONTINUE
TO LESSEN WITH TIME. RADAR MOSAIC AND VISIBLE SATELLITE TRENDS HAVE
SHOWN LITTLE IN THE WAY OF DEEPENING CONVECTIVE DEVELOPMENT ACROSS
ERN OH --EXCEPT ACROSS NERN OH WHERE A FEW LOW TOPPED TSTMS HAVE
DEVELOPED IN THE PAST HR. ASIDE FROM STRENGTHENING ASCENT
--ASSOCIATED WITH A MID-LEVEL VORT LOBE PROGRESSING ACROSS IND INTO
OHIO-- THAT MAY ACT TO PROLONG TSTM ACTIVITY ACROSS NERN OHIO INTO
NWRN PA...STORM COVERAGE IS ANTICIPATED TO BE LOW THROUGH THE EARLY
EVENING.

..SMITH.. 03/01/2012
Member Since: April 29, 2006 Posts: 154 Comments: 18755
Quoting BobWallace:


See that pile of bricks that used to be a church?

Imagine yourself under it.

Be careful what you wish for....


I agree wholeheartedly. Tornadoes/high winds are no joke.
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SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MORRISTOWN TN
758 PM EST WED FEB 29 2012

THE NATIONAL WEATHER SERVICE IN MORRISTOWN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
EXTREME EASTERN BLOUNT COUNTY IN EAST TENNESSEE...
COCKE COUNTY IN EAST TENNESSEE...
SEVIER COUNTY IN EAST TENNESSEE...

* UNTIL 815 PM EST

* AT 752 PM EST...TRAINED WEATHER SPOTTERS REPORTED A SEVERE
THUNDERSTORM PRODUCING GOLF BALL SIZE HAIL NEAR MARYVILLE. THIS
STORM WAS LOCATED 12 MILES SOUTHWEST OF PIGEON FORGE...OR 13
MILES WEST OF GATLINBURG...AND MOVING EAST AT 70 MPH.

* LOCATIONS IN THE WARNING INCLUDE...
GATLINBURG...ELKMONT AND PITTMAN CENTER.

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!

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM EST THURSDAY MORNING
FOR SOUTHWEST NORTH CAROLINA AND EAST TENNESSEE.
Member Since: June 1, 2010 Posts: 0 Comments: 159
Tennessee

747 PM EST Wed Feb 29 2012

...A Tornado Warning remains in effect until 800 PM EST for Blount
and Sevier counties...

At 743 PM EST...National Weather Service Doppler radar continued to
indicate a tornado. This tornado was located near Happy Valley...or
6 miles southeast of Maryville...moving east at 70 mph.

The tornado will be near...
Pigeon Forge and Sevierville around 755 PM EST.
Gatlinburg around 800 PM EST.

Other locations affected by this severe thunderstorm include wears
valley and Elkmont.
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Quoting GeorgiaStormz:


We waaant severe storms. dont tell them to go away.
Send them to me.


See that pile of bricks that used to be a church?

Imagine yourself under it.

Be careful what you wish for....
Member Since: February 22, 2011 Posts: 0 Comments: 1344
Quoting ScottLincoln:


Not my intent at all. With subjective words like "best," "fantastic," "amazing," etc, it is hard to determine what someone is trying to imply. The context of the rest of your comment and surrounding comments made it seem like there was some subjective scale where the hook was so high on the scale that it was similar to Joplin's tornado of last year. I was trying to get a clarification because the logic of that implication doesn't quite follow.


I posted one of the "surrounding comments." The graphic I posted is one I will always cherish for reasons I do not care to disclose. We all watch severe for our own reasons. You have your reasons. I have mine. No one's right and no one's wrong. I don't think anyone said or implied the hook echo is the end-all be-all for tornado diagnosis. It is one of the closest ways we have of "seeing" a tornado when we cannot see what is in the sky.
Member Since: April 29, 2006 Posts: 154 Comments: 18755
Quoting jamesrainier:
Ridgway, IL, about 15 mi ene of Harrisburg, IL
http://mediagallery.usatoday.com/Severe%20weather %20hits%20Midwest/G3442



Now I'am almost certain that it's a high end E-3 or low end E-4.
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Statement as of 7:49 PM EST on February 29, 2012

... A Tornado Warning remains in effect until 800 PM EST for
southeastern Smyth... southwestern Wythe and northern Grayson [VA]
counties...

At 744 PM EST... National Weather Service Doppler radar showed the
rotation from the storm that prompted the Tornado Warning was
weakening. This happens some times with an intensification that
follows. Therefore... the warning will be allowed to continue. This
storm will pass near flatridge... or near Sugar Grove... and move east
at 55 mph.

Locations impacted include...
flatridge...
Comers Rock...
Elk Creek...
Member Since: June 1, 2010 Posts: 0 Comments: 159
Quoting TheOnlyBravesFan:
The storms appear to be weakening significantly. Good news for all the folks here in Georgia eastward as it's nighttime now.... very bad time for severe storms.


We waaant severe storms. dont tell them to go away.
Send them to me.
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The storms appear to be weakening significantly. Good news for all the folks here in Georgia eastward as it's nighttime now.... very bad time for severe storms.
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Ridgway, IL, about 15 mi ene of Harrisburg, IL
http://mediagallery.usatoday.com/Severe%20weather %20hits%20Midwest/G3442



Member Since: June 1, 2010 Posts: 0 Comments: 159
A few interesting action items from next week's 66th Interdepartmental Hurricane Conference in Charleston.


Issuance of watches and warnings before tropical cyclone formation
NOAA/NWS
19 Jan 2012
Previous NOAA Hurricane Conferences and other discussions established an interest by the NHC and its WFO and international meteorological partners for the capability to issue tropical cyclone watches and warnings for tropical disturbances. For illustrative purposes, the satellite picture below with annotated hypothetical watches/warnings below shows the pre-Tomas (2010) disturbance about 21 hours prior to NHC’s first advisory with watches/warnings that could have been in place (see below for further discussion).
Informational, brief at 66th IHC and forward to RA-IV Committee. Obtain feedback on plan and activities from RA-IV partners.


Minor modification of Saffir-Simpson Hurricane Wind Scale
NOAA/NWS
19 Jan 2012
This item proposes a minor change to the Saffir-Simpson Hurricane Wind Scale in order to
Resolve awkwardness associated with conversions among the various units used for wind speed.
Currently, Category 4 is defined to be 131-155 mph (~114-135 kt and ~210-249 km/h). The
proposal broadens the Category 4 wind speed range by one mph at each end of the range, giving a
new range of 130-156 mph (~113-136 kt, ~209-251 km/h). Because NHC assigns intensity using
5-kt increments, neither storms in the historical record nor any future storms would have their
SSHWS category changed as a result of this adjustment



Update definition of subtropical cyclone
NOAA/NWS
19 Jan 2012
-The current definition of subtropical cyclone is too vague. It defines a subtropical cyclone as having characteristics of both tropical and extratropical cyclones, but doesn’t indicate what those specific defining characteristics are. Adding specificity to the definition would promote greater consistency among forecasters in its application, and promote better understanding with users.
- Adopt the following definition for subtropical cyclone:
A non-frontal low-pressure system that has characteristics of both tropical and extratropical cyclones. Like tropical cyclones, they are non-frontal, synoptic-scale cyclones that originate over tropical or subtropical waters, and have a closed surface wind circulation about a well-defined center. In addition, they have organized moderate to deep convection, but lack a central dense overcast. Unlike tropical cyclones, subtropical cyclones derive a significant proportion of their energy from baroclinic sources, and are generally cold-core in the upper troposphere, often being associated with an upper-level low or trough. In comparison to tropical cyclones, these systems generally have a radius of maximum winds occurring relatively far from the center (usually greater than 60 n mi), and generally have a less symmetric wind field and distribution of convection.


Additional information on these in the above "action items" link.
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424. wxmod
Quoting aspectre:
266 wxmod "China chemical plant fire [photo]"
271 aspectre "Deadly explosion rips through chemical plant ~164miles(263kilometres) southeast of Beijing; killing at least 16 people, injuring more than 40, and leaving dozens missing."
279 wxmod "News reports put this explosion at Shijiazhuang City, which is 170 miles from the black smoke on satellite photos. Was there another inferno the same day??? (Or is China hiding something and not doing a very good job of it)"

My thinking is that it's the same event: that Beijing was near the northwestern end of the astonishingly black smokeplume that you posted a satellite photo of earlier.


What if reporters were routed to a non-news item while thousands of people were gasping for air (or worse) in thick, black smoke. The reports coming out of China seem whitewashed, to say the least. You have to really search for a photo of the fire. I measured the burning area on Google Earth: 1.25 miles square, filled with pesticides and chemicals. And remember, the ambient pollution level for all of that area was hazardous before and after this fire, according to USA standards. This could have been Bhopal 2.
Member Since: October 4, 2011 Posts: 0 Comments: 1764
We made it through with just watches and warnings and a little hail.. How's everyone else doing??
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Tornado Warning
2012-02-29 19:23:00 EST until
2012-02-29 20:00:00 EST

723 PM EST Wed Feb 29 2012

The National Weather Service in Blacksburg has issued a

* Tornado Warning for...
southern Smyth County in southwest Virginia
southwestern Wythe County in southwest Virginia
northwestern Grayson County in southwest Virginia

* until 800 PM EST.

* At 721 PM EST...National Weather Service Doppler radar indicated a
severe thunderstorm capable of producing a tornado 8 miles
northwest of Whitetop...moving east at 55 mph.

* Locations impacted include...
MOUNT ROGERS SUMMIT...
GRAYSON HIGHLANDS STATE PARK...
TROUTDALE...
FLATRIDGE...
COMERS ROCK...
Member Since: June 1, 2010 Posts: 0 Comments: 159
NATIONAL WEATHER SERVICE MORRISTOWN TN
ISSUED BY NATIONAL WEATHER SERVICE NASHVILLE TN
720 PM EST WED FEB 29 2012

THE NATIONAL WEATHER SERVICE IN MORRISTOWN HAS ISSUED A

* TORNADO WARNING FOR...
BLOUNT COUNTY IN TENNESSEE...
SOUTHEASTERN LOUDON COUNTY IN TENNESSEE...
NORTH CENTRAL MONROE COUNTY IN TENNESSEE...
SEVIER COUNTY IN TENNESSEE...

* UNTIL 800 PM EST

* AT 715 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED 5 MILES SOUTHEAST OF LOUDON...AND MOVING EAST AT
75 MPH.

* THIS DANGEROUS STORM WILL BE NEAR...
MARYVILLE...EAGLETON VILLAGE AND ALCOA AROUND 730 PM EST.
PIGEON FORGE AND GATLINBURG AROUND 750 PM EST.

OTHER LOCATIONS IMPACTED BY THIS DANGEROUS STORM INCLUDE CLOVER
HILL...WALLAND...WILDWOOD...TOWNSEND...WEARS VALLEY...HARRISBURG AND
PITTMAN CENTER.
Member Since: June 1, 2010 Posts: 0 Comments: 159
Member Since: July 15, 2006 Posts: 174 Comments: 54398
Quoting hurricanehunter27:
I'm sry but you come across as someone who just wants to argue. It counts as fantastic because it is a text book example of what one should look like.


Not my intent at all. With subjective words like "best," "fantastic," "amazing," etc, it is hard to determine what someone is trying to imply. The context of the rest of your comment and surrounding comments made it seem like there was some subjective scale where the hook was so high on the scale that it was similar to Joplin's tornado of last year. I was trying to get a clarification because the logic of that implication doesn't quite follow.
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weakening now

should level off to a rain event here on out
Member Since: July 15, 2006 Posts: 174 Comments: 54398
417. flsky
Storm pics - very sad.

Link
Member Since: October 24, 2006 Posts: 0 Comments: 2014
It's reallllllllly pouring here, the rain sounds like golf balls.
The National Weather Service in Sterling Virginia has issued a

* Flood Warning for urban areas and small streams in...
Anne Arundel County in central Maryland
Howard County in central Maryland
Montgomery County in central Maryland
Prince Georges County in central Maryland
Baltimore County in northern Maryland
Baltimore City in northern Maryland

* until 1000 PM EST

* at 656 PM EST... National Weather Service Doppler radar indicated
locally heavy showers and isolated thunderstorms moving over the
area. Precipitation is moving to the northeast around 30 mph.

* Locally heavy rainfall along with already saturated soils will
cause streams and creeks to rise out of their banks along with
ponding of water in urban areas.

* Locations that will be impacted by the precipitation
include... Baltimore... Columbia... and Daniels.

A Flood Warning means that flooding is imminent or has been reported.
Stream rises will be slow and flash flooding is not expected.
However... all interested parties should take necessary precautions
immediately.

Precautionary/preparedness actions...

Additional rainfall amounts around one half to one inch are expected
over the warned area.

Most flood deaths occur in automobiles. Never drive your vehicle into
areas where the water covers the roadway. Flood waters are usually
deeper than they appear. Just one foot of flowing water is powerful
enough to sweep vehicles off the Road. When encountering flooded
roads make the smart choice... turn around... dont drown.


Lat... Lon 3927 7639 3923 7638 3919 7644 3920 7650
3922 7652 3918 7652 3915 7645 3896 7677
3910 7703 3935 7690 3936 7687 3937 7689
3943 7685 3943 7638 3938 7634 3930 7634


... Record daily maximum rainfall set at Baltimore MD...

A record daily maximum rainfall was set at Baltimore MD today.
Record was not sent as additional rain is expected the remainder of
the day. The old record was 0.92 inch(es) set back in 1892.
And it's only gonna get worse.
Member Since: October 22, 2011 Posts: 0 Comments: 2465
Storms are dying.
Hoping they rejuvenate over me. I wont wish it on anyone else. :)
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Quoting ScottLincoln:


What constitutes a "fantastic" hook echo or appendage? Size? Angle of curvature? Reflectivity intensity?
I'm sry but you come across as someone who just wants to argue. It counts as fantastic because it is a text book example of what one should look like.
Member Since: July 22, 2010 Posts: 1 Comments: 3842
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE KNOXVILLE-TRI CITIES TN
ISSUED BY NATIONAL WEATHER SERVICE PEACHTREE CITY GA
708 PM EST WED FEB 29 2012

THE NATIONAL WEATHER SERVICE IN KNOXVILLE-TRI CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
NORTHERN RUSSELL COUNTY IN SOUTHWEST VIRGINIA

* UNTIL 800 PM EST

* AT 706 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS UP TO 60
MPH. THIS STORM WAS LOCATED NEAR CLEVELAND...MOVING EAST AT 55
MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
HONAKER...ROSEDALE AND DYE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DOPPLER RADAR HAS INDICATED ROTATION WITHIN THIS STORM. ALTHOUGH
CURRENT DATA DOES NOT INDICATE THE EXISTENCE OF A TORNADO...A TORNADO
MAY STILL DEVELOP. IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO
A PLACE OF SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR
SMALL INTERIOR ROOM.
Member Since: June 1, 2010 Posts: 0 Comments: 159
I wonder how April and May will look like...
Member Since: Posts: Comments:
Never mind. I'm figuring it out. :)
Member Since: August 9, 2009 Posts: 10 Comments: 5026
Quoting hurricanehunter27:
Also what I was saying is true as far as hook echos this one looked fantastic.


What constitutes a "fantastic" hook echo or appendage? Size? Angle of curvature? Reflectivity intensity?
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TORNADO WATCH NUMBER 53
NWS STORM PREDICTION CENTER NORMAN OK
635 PM EST WED FEB 29 2012

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

NORTH GEORGIA
WESTERN NORTH CAROLINA
UPSTATE SOUTH CAROLINA
EXTREME EAST AND SOUTHEAST TENNESSEE

EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 635 PM
UNTIL 100 AM 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 25 MILES NORTHWEST OF ROME
GEORGIA TO 50 MILES EAST NORTHEAST OF ASHEVILLE NORTH CAROLINA.
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 48...WW 49...WW 50...WW
51...WW 52...

DISCUSSION...A BROKEN PRE-FRONTAL BAND OF STORMS...INCLUDING SOME
EMBEDDED BOW/SUPERCELL STRUCTURES...WILL CONTINUE TO PROGRESS
EWD/ESEWD FROM AL/TN TO THE SRN APPALACHIANS OVERNIGHT. INSTABILITY
IS NOT PARTICULARLY STRONG ACROSS THE WATCH AREA...BUT A GRADUAL
INCREASE IN LOW-LEVEL MOISTURE INTO EARLY TONIGHT WILL TEND TO
OFFSET THE LOSS OF DAYTIME HEATING. MEANWHILE...A BELT OF STRONG
DEEP-LAYER FLOW AND VERTICAL SHEAR WILL REMAIN OVER THE WATCH AREA
AS A SHORTWAVE TROUGH MOVES OVER THE OH VALLEY. THE COMBINATION OF
WEAK INSTABILITY AND STRONG VERTICAL SHEAR WILL CONTINUE TO SUPPORT
A RISK FOR DAMAGING WINDS AND ISOLATED LARGE HAIL...AS WELL AS A
TORNADO OR TWO WITH THE MORE INTENSE EMBEDDED STORMS.

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
450. MEAN STORM MOTION VECTOR 27045.


...THOMPSON
Member Since: April 29, 2006 Posts: 154 Comments: 18755

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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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