Updatedd Severe Weather Information for Oklahoma


Latest information from the Storm Prediction Center on the Severe Weather Outbreak.

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0228 PM CDT THU APR 14 2011

VALID 142000Z – 151200Z

…THERE IS A MDT RISK OF SVR TSTMS FROM SERN KS/SWRN MO SWD THRU
ERN OK FAR WRN AR INTO PORTIONS OF NERN TX…

…THERE IS A SLGT RISK OF SVR TSTMS FROM PORTIONS OF THE CENTRAL
AND SRN PLAINS INTO PARTS OF THE LOWER MS VALLEY…

LITTLE CHANGE TO PREVIOUS OUTLOOK.

LATEST VISIBLE IMAGERY SHOWS TCU DEVELOPING ALONG THE DRYLINE FROM S
CNTRL KS SWD ALONG I-35 INTO N TX WHERE STRONG HEATING HAS ERODED
CAP. MODIFIED 18Z OUN SOUNDING EXHIBITS STRONG INSTABILITY WITH
SHEAR FAVORABLE FOR SUPERCELLS. EXTREMELY LARGE HAIL MAY OCCUR AS
WELL AS AN INCREASING TORNADO THREAT TOWARDS EVENING AS SUPERCELLS
MATURE AND MOVE INTO A MORE FAVORABLE LCL ENVIRONMENT. FOR MORE
INFORMATION SEE MESOSCALE DISCUSSION 425.

TO THE N…SEVERE STORMS WERE ERUPTING ALONG THE WARM FRONT FROM NRN
KS INTO SRN NEB WITH MAINLY A HAIL THREAT CURRENTLY.
HOWEVER…POCKETS OF HEATING AND FURTHER DESTABILIZATION MAY ALLOW
FOR AN INCREASE IN EFFECTIVE LOW LEVEL SHEAR…WITH AN INCREASED
THREAT OF ROTATION. EXPANDED TORNADO PROBS A BIT N TO THE NEB BORDER
WHERE WARMING IS OCCURRING. FOR MORE INFORMATION SEE MESOSCALE
DISCUSSION 424.

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