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Mesoscale Discussion 1381 |
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MESOSCALE DISCUSSION 1381
NWS STORM PREDICTION CENTER NORMAN OK
0351 AM CDT SAT JUN 25 2011
AREAS AFFECTED...NRN/ERN MO...PARTS OF WRN IL
CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY
VALID 250851Z - 251015Z
THE NEED FOR A WATCH IS NOT CURRENTLY ANTICIPATED...BUT TRENDS WILL
CONTINUE TO BE MONITORED.
WIDELY SCATTERED THUNDERSTORMS HAVE ALREADY DEVELOPED ACROSS PARTS
OF EASTERN MISSOURI. THIS IS OCCURRING ON THE EASTERN PERIPHERY OF
A BROAD ZONE OF LOWER/MID TROPOSPHERIC WARM ADVECTION...WITH WARMER
AND MORE STRONGLY CAPPING ELEVATED MIXED LAYER AIR INHIBITING STORM
DEVELOPMENT ACROSS EASTERN KANSAS INTO WESTERN MISSOURI.
UNCERTAINTY EXISTS CONCERNING THE STRENGTH OF THIS INHIBITION...BUT
IT APPEARS THE PRIMARY ZONE OF STORM INITIATION WILL REMAIN ACROSS
NORTHERN/EASTERN MISSOURI...WHERE AN INCREASE IN STORM COVERAGE
APPEARS PROBABLE THROUGH 12-14Z. HIGHEST THUNDERSTORM PROBABILITIES
MAY BE ACROSS AREAS NORTH/EAST OF THE KANSAS CITY METROPOLITAN
AREA...AS THE PLAINS SOUTHERLY LOW-LEVEL JET CONTINUES TO VEER TO A
MORE SOUTHWESTERLY COMPONENT. WHILE DEEP LAYER SHEAR IS FAIRLY
STRONG BENEATH 30 KT NORTHWESTERLY 500 MB FLOW...GUIDANCE SUGGESTS
THAT SOMEWHAT MODEST MID-LEVEL LAPSE RATES ARE LIMITING CAPE...AND
ANY SEVERE POTENTIAL MAY BE CONFINED TO THE RISK FOR MARGINAL SEVERE
HAIL.
..KERR.. 06/25/2011
ATTN...WFO...PAH...MEG...LSX...DVN...SGF...DMX...EAX...
LAT...LON 40589442 40549249 38958993 36618920 36439088 38019227
38749351 39279416 40589442
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