Here we go again. Allen County is on the eastern edge of this one. Here's the latest SPC discussion: MESOSCALE DISCUSSION 1251
NWS STORM PREDICTION CENTER NORMAN OK
1238 PM CDT FRI JUN 06 2008
AREAS AFFECTED...PARTS OF NRN IND...LWR MI
CONCERNING...SEVERE POTENTIAL...WATCH LIKELY
VALID 061738Z - 061900Z
CORRECTED FOR WORDING IN LAST SENTENCE
TRENDS ARE BEING MONITORED FOR THE POSSIBILITY OF AN INCREASING
SEVERE THREAT. A WW MAY BE NEEDED BY 18-19Z.
AS SUBTROPICAL RIDGING ALONG THE ATLANTIC SEABOARD REMAINS
STRONG...AXIS OF LARGER-SCALE TROUGH OVER THE NORTH CENTRAL STATES
IS LIFTING MORE NORTHWARD THAN NORTHEASTWARD...TOWARD THE UPPER
MISSISSIPPI VALLEY/UPPER GREAT LAKES REGION. ONLY A GRAZING
INFLUENCE OF FORCING ON THE TAIL END OF THIS MAY AFFECT MUCH OF
LOWER MICHIGAN DURING THE 18-21Z TIME FRAME. BUT...THIS PROBABLY
WILL BE SUFFICIENT TO OVERCOME MID-LEVEL INHIBITION AS WARM SECTOR
ENVIRONMENT CONTINUES TO MOISTEN. WARM MID-LEVEL TEMPERATURES
COULD SLOW CONVECTIVE INTENSIFICATION. HOWEVER...ONCE STORMS BECOME
ESTABLISHED...STRONG DEEP LAYER MEAN FLOW FIELDS /IN EXCESS OF 50
KT/ WILL CONTRIBUTE TO RAPID STORM MOTIONS. COUPLED WITH STRONG TO
EXTREME...BUT LARGELY UNIDIRECTIONAL....LOW-LEVEL SHEAR ...TORNADOES
WILL BE POSSIBLE IN ISOLATED SUPERCELLS. DAMAGING WINDS MAY BECOME
THE MORE PROMINENT THREAT THOUGH...WITH LINES OF STORMS LIKELY
INITIATING NEAR LAKE BREEZE OFF LAKE MICHIGAN.
Friday, June 6, 2008
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