Keith Reedy keithreedy@xxxxxxxxxxxx Begin forwarded message: > From: National Weather Service <nws.noaa@xxxxxxxxxxxxxxxxxxxxxxx> > Date: May 23, 2011 1:51:20 PM EDT > To: keithreedy@xxxxxxxxxxxx > Subject: NOAA's National Weather Service SPC Mesoscale Discussion Update > Reply-To: National Weather Service <nws.noaa@xxxxxxxxxxxxxxxxxxxxxxx> > > You are subscribed to SPC Mesoscale Discussion for NOAA's National Weather > Service. > > > > SPC MD 893 > > 05/23/2011 01:38 PM EDT > > MD 0893 CONCERNING SEVERE THUNDERSTORM WATCH 340... FOR E-CNTRL > MO...CNTRL/SRN IL/IND > > > > MESOSCALE DISCUSSION 0893 > NWS STORM PREDICTION CENTER NORMAN OK > 1237 PM CDT MON MAY 23 2011 > > AREAS AFFECTED...E-CNTRL MO...CNTRL/SRN IL/IND > > CONCERNING...SEVERE THUNDERSTORM WATCH 340... > > VALID 231737Z - 231900Z > > THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 340 > CONTINUES. > > FAST-MOVING BOWING LINE WILL LIKELY PRODUCE A SWATH OF DAMAGING > WINDS EAST OF THE SAINT LOUIS METRO AREA IN PARTS OF SRN IL THROUGH > 19Z. THIS SEGMENT MAY REACH THE ERN PORTIONS OF WW 340 BY 19Z...WITH > THE PROBABILITY OF A DOWNSTREAM WW ISSUANCE AT 80 PERCENT. > > AS OF 1730Z...BOWING LINE SEGMENT WITH A MEAN FORWARD PROPAGATION > SPEED OF 50-55 KT HAD REACH THE SAINT LOUIS METRO AREA WITH A 54 KT > GUST MEASURED AT KSTL. ENVIRONMENT WILL REMAIN SUPPORTIVE OF > MAINTAINING THIS FEATURE EWD ACROSS SRN IL. STRONG NEARLY > UNIDIRECTIONAL LOW/MID-LEVEL WLYS /AS SAMPLED BY WINCHESTER IL > PROFILER/ WILL REMAIN IN PLACE...IN CONJUNCTION WITH HEATING AND > INCREASINGLY RICH MOISTURE RETURN NOTED IN RECENT SURFACE > OBSERVATIONS. > > ADDITIONAL TSTM DEVELOPMENT MAY ALSO OCCUR ALONG THE LEADING EDGE OF > THE RICHER MOISTURE ACROSS CNTRL IL/IND WHERE CU FIELD HAS INCREASED > PER VISIBLE SATELLITE IMAGERY. THE COMBINATION OF THE BOWING LINE > AND/OR ADDITIONAL TSTM INITIATION WILL NECESSITATE A DOWNSTREAM > SEVERE TSTM WATCH ISSUANCE BY 19Z. > > ..GRAMS.. 05/23/2011 > > ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... > > ATTN...WFO...LMK...IND...PAH...ILX...LSX... > > LAT...LON 37959032 38969029 39569035 39998958 40028817 39868741 > 39138686 38838688 38538702 37898738 37668871 37959032 > > Read more > > > > > > > > To change your subscriptions or preferences log in to your Subscriber > Preferences Page with your e-mail address. > > Delete profile > > For questions or problems with the subscription service, please contact > support@xxxxxxxxxxxxxxxx > > This service is provided by NOAA's National Weather Service. > > > > GovDelivery, Inc. (800-439-1420) sending to keithreedy@xxxxxxxxxxxx on behalf > of the National Weather Service · 1325 East West Highway · Silver Spring, MD > 20910