STORM2K

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 380
NWS STORM PREDICTION CENTER NORMAN OK
250 PM CDT WED JUN 2 2004

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

SOUTH CENTRAL AND SOUTHEAST OKLAHOMA
EXTREME NORTH CENTRAL AND NORTHEAST TEXAS

EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 250 PM UNTIL
700 PM CDT.

...THIS IS A PARTICULARLY DANGEROUS SITUATION...

EXTREMELY DAMAGING THUNDERSTORM WIND GUSTS TO 90 MPH...LARGE HAIL
TO 3 INCHES IN DIAMETER...AND DANGEROUS LIGHTNING ARE POSSIBLE IN
THESE AREAS.

THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 110 STATUTE MILES
EAST AND WEST OF A LINE FROM 55 MILES NORTHWEST OF MCALESTER
OKLAHOMA TO 20 MILES SOUTHWEST OF DURANT OKLAHOMA.

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 377...WW 378...WW 379...

DISCUSSION...STRONG BOW ECHO HAS DEVELOPED ACROSS CENTRAL OKLAHOMA
AND IS MOVING SOUTH AND SOUTHEAST AT 40-50 KT. WIND GUSTS TO 70 KT
HAS BEEN REPORTED WITH THIS ACTIVITY AND IS EXPECTED TO CONTINUE TO
MOVE TOWARDS THE RED RIVER OF OK/TX NEXT SEVERAL HOURS.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 80
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 32045.


...MCCARTHY

Oh great! Here we go again. All our members out that way stay safe and check in when you can.

Never seen a PDS Severe tstorm watch---there is also now a PDS Tornado watch in effect---all be safe who are under the gun.

Argh! Please do not drop another hellacious tstorm onto Dallas again tonight. Only just got power back a few hours ago

When these cold pools develop these lines can get really nasty and accelerate. Damage being reported in every county these things go through. Please everyone stay safe and indoors during these severe thunderstorms.

Brett Adair wrote:When these cold pools develop these lines can get really nasty and accelerate. Damage being reported in every county these things go through. Please everyone stay safe and indoors during these severe thunderstorms.

it's a great looking MCS, w/ well defined precipitation sheild.



NCAPE values to the southeast of the MCS are generally greater than 0.3 -- especially over TX and OK, w/ Mid level lapse rates > 8 DEG C/km. which in combination w/ rich boudary layer moisture and lowest 6 KM shear over 35 KT, should allow the MCS to maintain its intensity for several hours to come.

LOOK OUT if you are in....NE TX, NW LA, SW AR. SRN OK. Severe wind damage, and large hail w/ strong cells is probable. SOME of the stronger cells embedded w/ in the MCS have echo tops above 50 thousand FT and VIL's over 70 Kg/m^2, suggesting severe hail.

Also in the Northeat portions of OK, and into western AR, the precip sheild associated w/ the aforementioned MCS is putting down some very heavy rainfall, the KOKC 88-D estimates up to 2.50" of rain has fallen in SOME places in JUST THE PAST HOURS w/ this system.

Look for additional convection to fire further back to the west into the remainder of SRN OK and NRN TX along the boundary, where even stronger instability exists.

Stay safe, everyone!