Oklahoma Severe Weather Discussion - April 2011

[SoonerQueen]

SEVERE THUNDERSTORM WATCH 191 IS IN EFFECT UNTIL 500 AM CDT
FOR THE FOLLOWING LOCATIONS
OK
. OKLAHOMA COUNTIES INCLUDED ARE

ADAIR ATOKA BRYAN
CARTER CHEROKEE CHOCTAW
CLEVELAND COAL CRAIG
CREEK DELAWARE GARVIN
HASKELL HUGHES JEFFERSON
JOHNSTON LATIMER LE FLORE
LINCOLN LOGAN LOVE
MARSHALL MAYES MCCLAIN
MCINTOSH MURRAY MUSKOGEE
NOWATA OKFUSKEE OKLAHOMA
OKMULGEE OSAGE OTTAWA
PAWNEE PAYNE PITTSBURG
PONTOTOC POTTAWATOMIE PUSHMATAHA
ROGERS SEMINOLE SEQUOYAH
STEPHENS TULSA WAGONER
WASHINGTON


Pray the storms don't miss us this time.

[venture]

Bulletin - immediate broadcast requested
severe thunderstorm warning
national weather service norman ok
1046 pm cdt sat apr 23 2011

the national weather service in norman has issued a

* severe thunderstorm warning for...
Southeastern lincoln county in central oklahoma...

* until 1130 pm cdt

* at 1046 pm cdt...national weather service radar indicated a severe
thunderstorm 3 miles west of meeker...moving northeast at 55 mph.

Hazards in the warning include...
Hail up to the size of golf balls...

* locations in the warning include davenport...meeker...sparks and
stroud.

[venture]

Watch county notification for watch 191...updated
national weather service norman ok
1041 pm cdt sat apr 23 2011

okc015-017-031-033-051-073-141-txc009-485-241000-
/o.exa.koun.sv.a.0191.000000t0000z-110424t1000z/

the national weather service has extended severe thunderstorm
watch 191 to include the following areas until 5 am cdt sunday

in oklahoma this watch includes 7 counties

in central oklahoma

canadian grady kingfisher

in southwest oklahoma

caddo comanche cotton
tillman

in texas this watch includes 2 counties

in northern texas

archer wichita

this includes the cities of...anadarko...archer city...
Chickasha...el reno...frederick...kingfisher...lawton...mustang.. .
Walters...wichita falls and yukon.

[venture]

Bulletin - immediate broadcast requested
severe thunderstorm warning
national weather service norman ok
1158 pm cdt sat apr 23 2011

the national weather service in norman has issued a

* severe thunderstorm warning for...
Southern grady county in central oklahoma...
Northern stephens county in southern oklahoma...
Eastern comanche county in southwest oklahoma...
Northeastern cotton county in southwest oklahoma...

* until 1245 am cdt

* at 1158 pm cdt...national weather service radar indicated a severe
thunderstorm 13 miles northwest of empire city...moving northeast
at 45 mph.

Hazards in the warning include...
Hail two inches in diameter...

* locations in the warning include acme...agawam...bray...central
high...corum...cox city...duncan...empire city...hulen...marlow...
Norge...rush springs and sterling.

[venture]

Severe Risk Sunday for most of Central and Eastern OK (including SW OK)...

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1254 AM CDT SUN APR 24 2011

VALID 241200Z - 251200Z

...THERE IS A SLGT RISK OF SVR TSTMS CORRIDOR FROM PORTIONS SW TX
AND OK TO MID-ATLANTIC...

...SYNOPSIS...
STG MID-UPPER LEVEL SPEED MAX AND ATTENDANT LOW-AMPLITUDE SHORTWAVE
TROUGH -- NOW EVIDENT IN MOISTURE CHANNEL IMAGERY APCHG NRN CA COAST
-- ARE FCST TO MOVE SEWD ACROSS CA/GREAT BASIN DURING
PERIOD...LEADING TO HEIGHT FALLS AND AMPLIFICATION OF TROUGHING
ACROSS WRN CONUS. DURING 25/00Z-25/12Z TIME FRAME...RESULTANT
TROUGH SHOULD MOVE EWD FROM UT/AZ ACROSS NM AND MUCH OF
CO...REACHING CENTRAL/SRN HIGH PLAINS BY END OF PERIOD.
FOREGOING/WEAKER SHORTWAVE TROUGH -- NOW APPARENT OVER SERN CA/WRN
AZ/NWRN SONORA REGION -- WILL MOVE NEWD TO NEAR TX PANHANDLE AND
PERMIAN BASIN REGIONS BY LATE AFTERNOON.

AHEAD OF THIS PROCESS...BROAD BELT OF SW FLOW ALOFT WILL EXTEND FROM
SRN HIGH PLAINS TO MID-ATLANTIC STATES...LARGELY PARALLEL TO
PERSISTENT SFC FRONT. FRONTAL ZONE SHOULD REMAIN ACROSS CORRIDOR
FROM NJ AND CENTRAL APPALACHIANS SWWD ACROSS KY...AR...SERN OK AND N
TX. EFFECTIVE FRONTAL ZONE MAY BE SHUNTED SWD ANYWHERE ALONG ITS
EXTENT BY MCS OUTFLOWS. BY MID-LATE AFTERNOON...FRONT/DRYLINE
INTERSECTION SHOULD RESIDE IN GEN AREA BETWEEN ABI SPS WITH DRYLINE
SWD TOWARD SERRANIAS DEL BURRO AREA OF NRN COAHUILA.

...TX/OK/AR PORTION OF OUTLOOK AREA -- DRYLINE/FRONT...
TSTMS ARE EXPECTED TO DEVELOP DURING AFTERNOON ALONG FRONT AND
DRYLINE...BECOMING MORE DENSE/NUMEROUS OVER FRONT GIVEN NEARLY
PARALLEL NATURE OF MEAN WIND AND DEEP-SHEAR VECTORS...LEADING TO
EARLY TRANSITION TO MESSY CONVECTIVE MODES. MORE ORTHOGONAL
COMPONENT OF FLOW ALOFT ACROSS DRYLINE...COMPARED TO COLD
FRONT...SHOULD SUPPORT MORE DISCRETE STORMS...INCLUDING
SUPERCELLS...FROM NEAR TRIPLE POINT SWD. THIS ACTIVITY SHOULD
PRODUCE LARGE HAIL...WITH HAILSTONES AOA 2.75 INCH DIAMETER LIKELY
IN A FEW SUPERCELLS. ENHANCED SRH AND DEEP-LAYER SHEAR ALONG THAT
PART OF FRONT NEAR DRYLINE MAY AID TORNADO POTENTIAL...WHICH ALSO
WILL EXIST SOMEWHAT SWD AHEAD OF DRYLINE INTO EARLY EVENING AS LLJ
ENLARGES 0-1 KM AGL HODOGRAPHS.

INCREASING HEIGHT FALLS...DCVA...AND STRENGTHENING 500-250 MB LAYER
WINDS ARE ALL EXPECTED OVER WRN PORTIONS OF THIS REGION DURING
AFTERNOON AHEAD OF EJECTING SHORTWAVE TROUGH...CONCURRENT WITH STG
SFC HEATING AND FAVORABLE BUOYANCY. MLCAPE 2500-3000 J/KG IS
POSSIBLE...AMIDST 40-50 KT EFFECTIVE SHEAR.

GRADUAL NWD SHIFT IN GREATEST CONVECTIVE CONCENTRATION AGAIN IS
LIKELY OVERNIGHT...AS STG LOW-LEVEL WAA AND ISENTROPIC ASCENT TO LFC
OCCUR N OF SFC FRONT. MAIN CONCERN N OF FRONT OVERNIGHT WILL BE
LARGE HAIL.

-------

Severe Risk Monday is mostly east of I-35.

DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0100 AM CDT SUN APR 24 2011

VALID 251200Z - 261200Z

...THERE IS A MDT RISK OF SVR TSTMS ACROSS A LARGE PORTION OF
ARKANSAS AND INTO SOUTHERN MISSOURI...

...THERE IS A SLGT RISK OF SVR TSTMS FROM ERN PORTIONS OF THE SRN
PLAINS EWD/NEWD INTO THE MID AND LOWER MS/MID AND LOWER OH/TN
VALLEYS...

...SYNOPSIS...
A LARGE UPPER TROUGH IS FORECAST TO REMAIN ANCHORED OVER THE CENTRAL
U.S. THIS PERIOD...WHILE AN EMBEDDED SHORT-WAVE TROUGH MOVES ACROSS
THE SRN PLAINS AND EVENTUALLY INTO THE MO VALLEY LATE.

AS THIS STRONG FEATURE PROGRESSES ACROSS THE S CENTRAL
CONUS...SURFACE CYCLOGENESIS IS FORECAST...AS A DEEPENING LOW
TRANSLATES NEWD FROM THE SRN PLAINS ACROSS MO THROUGH THE AFTERNOON
AND EVENING. THIS LOW -- AND AN ACCOMPANYING SURFACE FRONT
PROGRESSING SEWD ACROSS THE SRN PLAINS -- WILL BE A FOCUS FOR
DEVELOPMENT OF POTENTIALLY SIGNIFICANT SEVERE THUNDERSTORMS THIS
PERIOD.

...NERN TX/SERN OK/SERN KS EWD/NEWD INTO THE MID AND LOWER
MS/TN/LOWER AND MID OH VALLEYS...
POTENTIALLY SIGNIFICANT SEVERE WEATHER EVENT IS EXPECTED DAY 2
/MONDAY APRIL 25/ FROM ERN PORTIONS OF THE SRN PLAINS INTO THE MID
MS/LOWER OH/TN VALLEY REGION...WITH POTENTIAL FOR STRONG TORNADOES
IN ADDITION TO VERY LARGE HAIL AND DAMAGING WINDS.

WIDESPREAD SHOWERS AND THUNDERSTORMS ARE FORECAST TO BE ONGOING AT
THE START OF THE PERIOD...MAINLY ALONG AND N OF THE SURFACE WARM
FRONT FROM PARTS OF OK/KS EWD INTO THE OH VALLEY. AS THE STRONG
SHORT-WAVE TROUGH INVOF THE TX PANHANDLE REGION EARLY SHIFTS EWD
ACROSS TX/OK DURING THE DAY...A WEAK/BROAD SURFACE LOW INITIALLY
FORECAST INVOF N TX/OK IS FORECAST TO UNDERGO
CYCLOGENESIS...SHIFTING NEWD INTO MO THROUGH THE DAY. THIS WILL
ALLOW A SLOW NWD SHIFT OF THE COLD FRONT ACROSS SRN AND CENTRAL
MO/SRN IL...WHILE A COLD FRONT SHARPENS AND SWEEPS EWD ACROSS ERN
OK.

WHILE CLOUD COVER SHOULD ACT TO INHIBIT HEATING -- AND THUS MORE
SUBSTANTIAL DESTABILIZATION -- PARTICULARLY ACROSS NRN PORTIONS OF
THE RISK AREA...MIXED-LAYER CAPE OF 1000 TO 2000 J/KG IS FORECAST TO
DEVELOP AHEAD OF THE FRONT FROM E TX ACROSS THE ARKLATEX INTO AR/SRN
MO AND INTO THE MID MS VALLEY REGION. AS THE TROUGH SHIFTS EWD AND
THE FRONT SHARPENS...EXPECT VIGOROUS STORM DEVELOPMENT TO OCCUR
ACROSS SWRN MO...ERN OK...AND E TX DURING THE AFTERNOON WHICH --
GIVEN STRONG/FAVORABLY VEERING FLOW WITH HEIGHT -- SHOULD QUICKLY
BECOME SUPERCELLULAR. ALONG WITH THREATS FOR VERY LARGE
HAIL...ESPECIALLY ACROSS E TX AND THE ARKLATEX REGION...TORNADOES
ARE ALSO EXPECTED -- A FEW POSSIBLY STRONG/DAMAGING. THESE INTENSE
STORMS SHOULD SHIFT NEWD ACROSS THIS REGION WITH TIME TOWARD THE MID
MS VALLEY...WITH THE LIKELIHOOD FOR UPSCALE GROWTH OVERNIGHT INTO
LINEAR CLUSTERS. ALONG WITH A CONTINUED THREAT FOR A FEW
TORNADOES...MORE WIDESPREAD DAMAGING WIND THREAT COULD EVOLVE AS
STORMS SHIFT ACROSS THE MID MS AND LOWER OH VALLEY REGIONS THROUGH
THE EVENING/OVERNIGHT.

..GOSS.. 04/24/2011

[venture]

Storm in NW Oklahoma County is showing signs of large hail...may see severe weather develop soon.

[Dustin]

Its raining!! Zomfg!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

[Easy180]

No decent rain in the metro yet

[rcjunkie]

No decent rain in the metro yet

I live at Lake Tenkiller, but I'm in Norman for the weekend, it's been raining here most of the night.

[John1744]

It's been raining in Harrah for about 8 hours now.

[Easy180]

Pouring in Moore finally.

[Bunty]

In Stillwater, it's rained close to an 1 1/2. Ten miles south of there, Perkins, almost 2".

[venture]

Here is what the rainfall totals look like so far since Midnight.

[venture]

Training of heavy rain is continuing from Chandler to Norman to Chickasha. Additional development is now occurring back to Lawton and Snyder...so we may be talking about some minor urban flooding...especially in Norman as we are all familiar with.

Radar estimate rainfall totals are looking pretty decently. anywhere from 1-3 inches across Norman and northern Cleveland County. 2 to 4 inches in northern and NW Oklahoma County. Higher totals to the NE and South. Of course these are radar estimates and any hail mixed in would raise these estimates a lot.

Officially it looks like Norman has received just under an inch at the airport. Around a half inch at Will Rogers, Wiley Post and Tinker. Over an inch at Guthrie.

[venture]

MESOSCALE DISCUSSION 0550
NWS STORM PREDICTION CENTER NORMAN OK
0113 PM CDT SUN APR 24 2011

AREAS AFFECTED...CNTRL/SRN OK...NRN/CNTRL TX

CONCERNING...SEVERE POTENTIAL...WATCH LIKELY

VALID 241813Z - 241945Z

TSTMS WILL BUILD SWD FROM CNTRL/SWRN OK INTO WRN N TX AND POSSIBLY
THE TX BIG COUNTRY/CONCHO VALLEY THROUGH LATE AFTERNOON. PRIMARY
THREAT VERY LARGE HAIL AND DMGG WIND GUSTS...A COUPLE TORNADOES
POSSIBLE. WEATHER WATCH PROBABILITY ISSUANCE THROUGH MID-AFTERNOON
80 PERCENT.

18Z MESOANALYSIS PLACES SFC LOW TO THE SW KSPS WITH A WARM FRONT
BOWING ENE INTO SCNTRL/SERN OK AND A COLD FRONT SWWD INTO THE NRN
EDWARDS PLATEAU. BACKBUILDING CNTRL OK STORMS HAVE BEEN DEVELOPING
CLOSER TO THE WARM SECTOR/FRONT NEAR KLAW RECENTLY...LIKELY OWING TO
HEATING AND APPROACH OF THE MID-LEVEL WAVE OVER THE HIGH PLAINS.
THESE STORMS WILL LIKELY CONTINUE DEEPENING/STRENGTHENING OVER
SCNTRL AND CNTRL OK THROUGH LATE AFTERNOON.

ANOTHER REGION OF STORM INITIATION WILL LIKELY TAKE PLACE AMID THE
DEEPENING CU FIELD NEAR THE COLD FRONT/DIFFERENTIAL HEATING
BOUNDARIES OVER THE CONCHO VALLEY/BIG COUNTRY S OF KABI TO KSJT.
HERE...AIR MASS HAS BEEN RECOVERING WITH TEMPERATURES WARMING WELL
INTO THE UPPER 80S.

PRESENCE OF VERY STEEP MID-LEVEL LAPSE RATES AND SUFFICIENT VERTICAL
SHEAR FOR SUPERCELLS...STORMS WILL PRODUCE VERY LARGE HAIL ALONG
WITH DMGG WIND GUSTS. A TORNADO OR TWO CANNOT BE RULED OUT.

HIGHER THREATS FOR SEVERE STORMS WILL BE ACROSS N TX AND CNTRL/SRN
OK AS STORMS BEGIN TO PROPAGATE EWD ALONG THE RED RIVER LATER THIS
AFTERNOON/EVENING. FARTHER S...STORMS WILL BE MORE ISOLATED AS THEY
MOVE OFF THE INITIATING BOUNDARY AND MOVE SLOWLY ESE TOWARD THE HILL
COUNTRY.

..RACY.. 04/24/2011

[venture]

Strong to severe storms moving into the SW Metro area right now. Large hail main threat currently.

[venture]

Severe weather statement
national weather service norman ok
216 pm cdt sun apr 24 2011

okc027-087-109-241945-
/o.con.koun.sv.w.0104.000000t0000z-110424t1945z/
oklahoma ok-cleveland ok-mcclain ok-
216 pm cdt sun apr 24 2011

...a severe thunderstorm warning remains in effect until 245 pm cdt
for northwestern mcclain...northern cleveland and southeastern
oklahoma counties...

At 215 pm cdt...national weather service radar detected a severe
thunderstorm near moore...moving northeast at 35 mph. This storm
produced dollar sized hail as it moved across newcastle. The
storm has weakened some...however some strengthening is possible
as it moves northeast.

Hazards in the warning include...
Hail up to the size of quarters...

* locations in the warning include blanchard...harrah...midwest
city...moore...newcastle...northern norman...northwestern lake
thunderbird...southeastern oklahoma city...stanley draper lake...
Stella...tinker air force base and valley brook.

Lat...lon 3552 9717 3530 9715 3513 9766 3537 9767
time...mot...loc 1915z 245deg 30kt 3533 9746

$$







================================================== ====================
wuus54 koun 241903
svroun
okc027-087-109-241945-
/o.new.koun.sv.w.0104.110424t1903z-110424t1945z/

bulletin - immediate broadcast requested
severe thunderstorm warning
national weather service norman ok
203 pm cdt sun apr 24 2011

the national weather service in norman has issued a

* severe thunderstorm warning for...
Northern cleveland county in central oklahoma...
Northwestern mcclain county in central oklahoma...
Southeastern oklahoma county in central oklahoma...

* until 245 pm cdt

* at 203 pm cdt...national weather service radar indicated a severe
thunderstorm near newcastle...moving northeast at 35 mph.

Hazards in the warning include...
Hail up to the size of quarters...

* locations in the warning include blanchard...harrah...midwest
city...moore...newalla...newcastle...northern norman...northwestern
lake thunderbird...southeastern oklahoma city...stanley draper
lake...stella...tinker air force base and valley brook.

[venture]

Bulletin - immediate broadcast requested
severe thunderstorm warning
national weather service norman ok
224 pm cdt sun apr 24 2011

the national weather service in norman has issued a

* severe thunderstorm warning for...
Southern cleveland county in central oklahoma...
Eastern grady county in central oklahoma...
Western mcclain county in central oklahoma...
Western pottawatomie county in central oklahoma...

* until 330 pm cdt

* at 223 pm cdt...national weather service radar indicated a severe
thunderstorm 3 miles northwest of purcell...moving northeast at
35 mph. Other severe thunderstorms were moving northeast out of
grady county and will impact southern mcclain county.

Hazards in the warning include...
Hail up to the size of half dollars...


* locations in the warning include bethel acres...brooksville...
Cole...criner...dibble...etowah...goldsby...lake thunderbird...
Lexington...macomb...noble...pink...purcell...shaw nee...
Slaughterville...southeastern norman...tecumseh...tribbey and
washington.

Base Reflectivity:


Max Estimated Hail Size:

[venture]

Ww 194 severe tstm ok tx 241930z - 250200z
axis..55 statute miles north and south of line..
55w adm/ardmore ok/ - 20nne rkr/poteau ok/ ..aviation coords.. 50nm n/s /35ene sps - 12wsw fsm/ hail surface and aloft..3 inches. Wind gusts..60 knots.
Max tops to 500. Mean storm motion vector 24035.



URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 194
NWS STORM PREDICTION CENTER NORMAN OK
230 PM CDT SUN APR 24 2011

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

CENTRAL AND SOUTHERN OKLAHOMA
SMALL PART OF WESTERN NORTH TEXAS

EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 230 PM UNTIL 900
PM CDT.

SCATTERED DAMAGING WINDS
ISOLATED WIND GUSTS TO 70 MPH POSSIBLE
WIDESPREAD LARGE HAIL
ISOLATED HAIL TO 3.0 INCHES IN DIAMETER POSSIBLE
ISOLATED TORNADOES

THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 55
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 55 MILES WEST OF
ARDMORE OKLAHOMA TO 20 MILES NORTH NORTHEAST OF POTEAU OKLAHOMA.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU4).

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

OTHER WATCH INFORMATION...CONTINUE...WW 192...WW 193...

DISCUSSION...ELEVATED STORM CLUSTERS/SUPERCELLS ALONG/N OF THE WARM
FRONT IN CENTRAL OK ARE EXPECTED TO ROOT INTO THE DEEPENING MOIST
AIR MASS ACROSS SOUTHERN OK THROUGH THE AFTERNOON. AMPLE VERTICAL
SHEAR AND INSTABILITY EXIST FOR SUPERCELLS AND BOWS CAPABLE OF VERY
LARGE HAIL AND DMGG WIND GUSTS. ACTIVITY WILL MOVE ESE ACROSS SRN OK
AND N TX LATER THIS AFTERNOON.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 24035.

SEVERE THUNDERSTORM WATCH PROBABILITIES FOR WS 0194 NWS STORM PREDICTION CENTER NORMAN OK
0227 PM CDT SUN APR 24 2011

WS 0194
PROBABILITY TABLE:
PROB OF 2 OR MORE TORNADOES : 20%
PROB OF 1 OR MORE STRONG /F2-F5/ TORNADOES : 05%
PROB OF 10 OR MORE SEVERE WIND EVENTS : 60%
PROB OF 1 OR MORE WIND EVENTS >= 65 KNOTS : 30%
PROB OF 10 OR MORE SEVERE HAIL EVENTS : 80%
PROB OF 1 OR MORE HAIL EVENTS >= 2 INCHES : 50%
PROB OF 6 OR MORE COMBINED SEVERE HAIL/WIND EVENTS : 90%

&&
ATTRIBUTE TABLE:
MAX HAIL /INCHES/ : 3.0
MAX WIND GUSTS SURFACE /KNOTS/ : 60
MAX TOPS /X 100 FEET/ : 500
MEAN STORM MOTION VECTOR /DEGREES AND KNOTS/ : 24035
PARTICULARLY DANGEROUS SITUATION : NO

[venture]

The chat room at chatokc.com is running. I won't be watching it too much, but the storm reports and twitter feeds are running to stay up to date on the latest info.

In case you can't read the site, that means power is out in Norman. The UPS ran down quite a bit earlier when we were without power, so not sure how much juice it has left. LOL

Mobile version

Standalone Version

[venture]

Bulletin - immediate broadcast requested
severe thunderstorm warning
national weather service norman ok
240 pm cdt sun apr 24 2011

the national weather service in norman has issued a

* severe thunderstorm warning for...
Western pontotoc county in east central oklahoma...
Southeastern garvin county in southern oklahoma...
Northern murray county in southern oklahoma...

* until 330 pm cdt

* at 239 pm cdt...national weather service radar indicated a severe
thunderstorm 5 miles southeast of elmore city...moving northeast at
35 mph.

Hazards in the warning include...
Hail up to the size of half dollars...

* locations in the warning include elmore city...roff...stratford...
Vanoss and wynnewood.

[venture]

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 197
NWS STORM PREDICTION CENTER NORMAN OK
540 PM CDT SUN APR 24 2011

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

PARTS OF WESTERN ARKANSAS
PARTS OF EASTERN OKLAHOMA

EFFECTIVE THIS SUNDAY AFTERNOON AND MONDAY MORNING FROM 540 PM
UNTIL 100 AM CDT.

SEVERAL TORNADOES
WIDELY SCATTERED DAMAGING WINDS
ISOLATED WIND GUSTS TO 70 MPH POSSIBLE
SCATTERED LARGE HAIL
ISOLATED HAIL TO 2.0 INCHES IN DIAMETER POSSIBLE

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 40 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 20 MILES NORTHWEST OF DURANT
OKLAHOMA TO 40 MILES EAST OF FORT SMITH ARKANSAS. FOR A COMPLETE
DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE
(WOUS64 KWNS WOU7).

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 192...WW 194...WW
195...WW 196...

DISCUSSION...SEVERE THUNDERSTORMS DEVELOPING EWD ACROSS THE WATCH
WITH NOW FAVORABLE VEERING SHEAR PROFILES IN PLACE FOR TORNADIC
SUPERCELLS. PRIMARY THREAT WILL OCCUR ALONG E/W OUTFLOW BOUNDARY
CURRENTLY FROM N OF MLC TO S OF FSM.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 26035.

[Thunder]

I find it funny how it is a washout for the most of us in the eastern half of the state. It is still raining here nonstop.

[venture]

Counties are being cleared from the watch now. This is all that is left.

WATCH COUNTY NOTIFICATION FOR WATCHES 194/197...UPDATED
NATIONAL WEATHER SERVICE NORMAN OK
716 PM CDT SUN APR 24 2011

OKC019-067-085-099-TXC077-250200-
/O.CON.KOUN.SV.A.0194.000000T0000Z-110425T0200Z/

SEVERE THUNDERSTORM WATCH 194 REMAINS VALID UNTIL 9 PM CDT THIS
EVENING FOR THE FOLLOWING AREAS

IN OKLAHOMA THIS WATCH INCLUDES 4 COUNTIES

IN SOUTHERN OKLAHOMA

CARTER JEFFERSON LOVE
MURRAY

IN TEXAS THIS WATCH INCLUDES 1 COUNTY

IN NORTHERN TEXAS

CLAY

THIS INCLUDES THE CITIES OF...ARDMORE...HENRIETTA...MARIETTA...
SULPHUR AND WAURIKA.

[venture]

MESOSCALE DISCUSSION 0563
NWS STORM PREDICTION CENTER NORMAN OK
1158 PM CDT SUN APR 24 2011

AREAS AFFECTED...ERN PORTIONS TX/OK PANHANDLES...WRN/NRN
OK...EXTREME S-CENTRAL KS.

CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE

VALID 250458Z - 250630Z

POTENTIAL MAY INCREASE THROUGH 09Z FOR SVR TSTMS WITH LARGE
HAIL...MOVING ENEWD WHILE THREAT SPREADS EWD ACROSS THIS AREA.

EXPECT MID-UPPER TROUGH...APCHG FROM SWRN CONUS...TO YIELD
SIMULTANEOUS STRENGTHENING OF DEEP-LAYER SHEAR...ELEVATED/LOW-LEVEL
WAA/MOISTURE TRANSPORT ABOVE COOL/STABLE BOUNDARY LAYER...AND
MID-UPPER LEVEL ASCENT/COOLING OVER THIS AREA. NET RESULT WILL BE
FAVORABLE DEEP-LAYER ASCENT/DESTABILIZATION FOR ELEVATED TSTMS TO
DEVELOP...IN ENVIRONMENT CHARACTERIZED BY 45-55 KT EFFECTIVE
SHEAR...FAVORABLE STORM-RELATIVE WINDS IN ELEVATED INFLOW
LAYER...AND INCREASING BUOYANCY. MUCAPE WILL INCREASE WITH EWD
EXTENT AND WITH TIME ACROSS DISCUSSION AREA...REACHING UP TO 2000
J/KG NEAR I-40 IN CENTRAL OK THROUGH 09Z. IR IMAGERY INDICATES
COOLING LOW-MIDLEVEL CLOUDS OVER THIS REGION...EVIDENCE OF
AFOREMENTIONED ASCENT SPREADING EWD OVER REGION AND PROBABLE
PRECURSOR TO ADDITIONAL DEEP-CONVECTIVE FORMATION DURING NEXT FEW
HOURS. WHILE FOCI IN ELEVATED-INITIATION SITUATIONS TYPICALLY ARE
RATHER NEBULOUS...CONVECTION MAY BECOME MOST CONCENTRATED INVOF
850-MB WARM FRONT OVER NWRN/N-CENTRAL OK...IN LAYER PROGGED TO
EXPERIENCE GREATEST ASCENT THROUGH REMAINDER OVERNIGHT HOURS.

..EDWARDS.. 04/25/2011