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MESOSCALE DISCUSSION 1144
NWS STORM PREDICTION CENTER NORMAN OK
0542 PM CDT MON JUN 15 2009
AREAS AFFECTED...SERN NC...NRN SC
CONCERNING...SEVERE THUNDERSTORM WATCH 421...
VALID 152242Z - 152345Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 421
CONTINUES.
A LOCALIZED DAMAGING WIND AND MARGINAL HAIL THREAT SHOULD BE NEAR
PEAK THROUGH 00Z...PRIMARILY ACROSS SERN NC INTO NERN SC.
NUMEROUS OUTFLOW BOUNDARIES WERE EVIDENT IN RECENT RADAR IMAGERY AND
SURFACE OBSERVATIONAL DATA /WITH A GENERAL WLY MOTION/. INDIVIDUAL
CELLS CONTINUE TO FLARE UP ALONG COLLIDING BOUNDARIES...WITH THE
MOST INTENSE ACTIVITY RELEGATED TO SERN NC/FAR NRN SC AS OF 2230Z.
DESPITE ANEMIC LOW-LEVEL FLOW...MODERATE MID-LEVEL WLYS ALONG WITH A
MODERATELY UNSTABLE AIR MASS SHOULD SUPPORT CONTINUED POTENTIAL FOR
LOCALIZED DAMAGING WINDS FROM WET MICROBURSTS AND PERHAPS MARGINAL
HAIL. FARTHER S ACROSS CNTRL PORTIONS OF COASTAL SC...OVERALL CU
FIELD APPEARS TO BE DIMINISHING PROBABLY IN RESPONSE TO STABILIZING
EFFECTS OF EARLIER SEA BREEZE CONVECTION. ADDITIONAL TSTM
DEVELOPMENT WITHIN THIS REGION SEEMS UNLIKELY.
..GRAMS.. 06/15/2009
ATTN...WFO...MHX...RAH...ILM...CHS...CAE...GSP...
LAT...LON 35267784 34717746 34127787 33767861 33347930 33277986
33528049 33788098 34178202 34548211 34758166 34838015
35327913 35267784
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