SWOMCD
SPC MCD 170154
MIZ000-170400-
MESOSCALE DISCUSSION 1797
NWS STORM PREDICTION CENTER NORMAN OK
0854 PM CDT WED JUL 16 2008
AREAS AFFECTED...LOWER MI
CONCERNING...SEVERE THUNDERSTORM WATCH 694...
VALID 170154Z - 170400Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 694
CONTINUES.
SEVERE THUNDERSTORM WATCH 694 HAS BEEN EXTENDED UNTIL 04Z ACROSS
SOUTHEAST LOWER MI...WITH A CONTINUED RISK OF DAMAGING WINDS AND
SEVERE HAIL.
ROUGHLY 30-KT MOVING QUASI-LINEAR MCS CONTINUES TO BROADEN/SLOWLY
WEAKEN ACROSS CENTRAL LOWER MI...WHILE MERGING WITH AN EXTENSIVE
BAND OF TSTMS THAT DEVELOPED EARLIER ALONG/NORTH OF THE LOWER MI
WARM FRONT. THE ORGANIZATION OF THIS ACTIVITY IS BEING AIDED BY AN
MCV ACROSS WEST CENTRAL LOWER MI PER SATELLITE/RADAR IMAGERY. WITH A
HISTORY OF WIND DAMAGE/SEVERE HAIL ACROSS LOWER MI...A SIMILAR
THREAT WILL CONTINUE OVER THE NEXT FEW HOURS ACROSS THE REMAINDER OF
SOUTHEAST LOWER MI TOWARD THE ANN ARBOR/DETROIT AREAS. THE 00Z
OBSERVED RAOB FROM DETROIT REFLECTS THE STRONGLY UNSTABLE AIRMASS
THE RESIDES ACROSS THE UN-CONVECTIVELY OVERTURNED AREAS OF SOUTHEAST
LOWER MI...WITH AS MUCH AS 2500 J/KG MLCAPE.
..GUYER.. 07/17/2008
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...DTX...IWX...GRR...
43358501 43518325 42958233 41748337 41918536
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