|
| Mesoscale Discussion 1574 |
|
< Previous MD
Next MD >
|
|
MESOSCALE DISCUSSION 1574
NWS STORM PREDICTION CENTER NORMAN OK
0354 PM CDT THU JUN 26 2008
AREAS AFFECTED...EXTREME SRN NEB...N CENTRAL AND NE KS
CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE
VALID 262054Z - 262230Z
ISOLATED SEVERE STORMS WILL BE POSSIBLE THIS AFTERNOON ALONG THE
STALLED OUTFLOW BOUNDARY NEAR THE KS/NEB BORDER. A SEVERE TSTM
WATCH MAY BE NEEDED IN THE NEXT 1-2 HOURS.
VISIBLE IMAGERY AND SURFACE OBSERVATIONS CONFIRM THAT THE LOW LEVELS
ARE DESTABILIZING ACROSS NE KS...ALONG AND S OF AN OUTFLOW BOUNDARY
FROM ONGOING CONVECTION IN SE NEB AND NW MO. MLCAPE VALUES HAVE
INCREASED TO NEAR 3000 J/KG IN CONJUNCTION WITH STEEP MID LEVEL
LAPSE RATES AND THE MOIST/WARMING BOUNDARY LAYER. VERTICAL SHEAR IS
MARGINALLY FAVORABLE FOR ORGANIZED SEVERE STORMS ALONG THE BOUNDARY
WHERE LOW-LEVEL FLOW IS BACKED...AND THIS FACTOR COULD LOCALLY
ENHANCE THE LARGE HAIL THREAT THIS AFTERNOON. OTHERWISE...STORMS
WILL BE CAPABLE OF PRODUCING ISOLATED DAMAGING WINDS...ESPECIALLY IF
STORM MERGERS LEAD TO UPSCALE GROWTH INTO A SMALL CLUSTER THIS
EVENING.
..THOMPSON.. 06/26/2008
ATTN...WFO...EAX...OAX...TOP...GID...
39919595 39489506 38949482 38709534 38869627 39319724
39519809 39739887 40099904 40219852 40009652
|
|
Top/All Mesoscale Discussions/Forecast Products/Home
|
|