|
Mesoscale Discussion 1584 |
< Previous MD Next MD >
|
|
MESOSCALE DISCUSSION 1584
NWS STORM PREDICTION CENTER NORMAN OK
1149 AM CDT SUN AUG 02 2015
AREAS AFFECTED...NRN LOWER MI
CONCERNING...SEVERE THUNDERSTORM WATCH 461...
VALID 021649Z - 021745Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 461
CONTINUES.
SUMMARY...THE POTENTIAL IS INCREASING ACROSS NRN LOWER MI FOR SEVERE
WIND GUSTS 55-70 MPH WHICH WILL PROBABLY RESULT IN MULTIPLE SWATHS
OF WIND DAMAGE.
DISCUSSION...SUBJECTIVE SURFACE MESOANALYSIS PLACES AN EFFECTIVE
WARM FRONT/OUTFLOW DRAPED FROM THE TRAILING PORTION OF STRONG STORMS
OVER LAKE HURON WESTWARD INTO NRN LOWER MI. THE AIRMASS INVOF THE
BOUNDARY AND TO THE S HAS DESTABILIZED MARKEDLY THE PAST FEW HOURS
WITH AN INFLUX OF MID-UPPER 60S DEWPOINTS AND HEATING RESULTING IN
UPPER 70S TEMPS. THE STRONG UNIDIRECTIONAL WLY FLOW /50 KT AT 2-3
KM AGL/ AT KAPX PRIOR TO QLCS PASSAGE WILL LEND SUPPORT FOR MOMENTUM
TRANSPORT TO THE SURFACE AS LOW-LEVEL LAPSE RATES HAVE STEEPENED
SUFFICIENTLY. UPSCALE GROWTH INTO BOWING SEGMENTS DURING THE PAST
30-60 MINUTES IS YIELDING GREATER POTENTIAL FOR SEVERE STRAIGHT-LINE
WIND DAMAGE AND SWATHS OF 55-70 MPH WIND GUSTS APPEAR PROBABLE PRIOR
TO THE QLCS MOVING OFF THE LAKE HURON COAST.
..SMITH.. 08/02/2015
ATTN...WFO...DTX...APX...GRR...
LAT...LON 45368467 45348364 44338327 43978409 44058527 45368467
|
Top/All Mesoscale Discussions/Forecast Products/Home
|
|