Thursday, May 30, 2013

Mesoscale Discussion 21:14:42.7571717

AREAS AFFECTED...ERN WI

CONCERNING...TORNADO WATCH 256...

VALID 310214Z - 310315Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 256 CONTINUES.

SUMMARY...SVR WEATHER THREAT CONTINUES FOR PRIMARILY THE ERN HALF OF
WW 256 LATE THIS EVENING.

DISCUSSION...HEIGHT FALLS/FORCING FOR ASCENT SPREADING ACROSS THE
UPPER MS VALLEY AND INCREASING BULK SHEAR ARE MAINTAINING TSTM
DEVELOPMENT OVER ERN WI...AND IN PARTICULAR A NEWD MOVING TSTM LINE
IN FAR SERN-EAST CENTRAL WI...WITHIN A RESIDUAL N-S CORRIDOR OF
MODERATE INSTABILITY. POCKETS OF MARGINAL-MODERATE INSTABILITY
THROUGH 03-04Z COULD PROVE FAVORABLE IN SUPPORTING LOCALLY STRONG
WIND GUSTS AND/OR SOME HAIL YET THIS EVENING. OTHERWISE...A
CONTINUED INCREASE IN SURFACE BASED INHIBITION SHOULD RESULT IN A
FURTHER DIMINISHING TREND IN THE OVERALL SVR WEATHER THREAT. THIS
LATTER TREND APPEARS TO BE OCCURRING IN SERN WI...GIVEN A SUB-SVR
WIND GUST AT WAUKESHA WI AT 0126Z.

..PETERS.. 05/31/2013

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...MQT...GRB...LOT...MKX...

LAT...LON 42488789 43548831 44508881 45308857 45718825 45758780
45068761 44688787 44728732 44008760 43878711 42858712
42498709 42488789