Severe Storm Outlook Narrative (AC)
Issued by NWS

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000 ACUS11 KWNS 210556 SWOMCD SPC MCD 210555 MIZ000-INZ000-210730- MESOSCALE DISCUSSION 1752 NWS STORM PREDICTION CENTER NORMAN OK 1255 AM CDT SUN SEP 21 2014 AREAS AFFECTED...WRN LOWER MI CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY VALID 210555Z - 210730Z PROBABILITY OF WATCH ISSUANCE...20 PERCENT SUMMARY...STRONG WIND GUSTS MAY PRODUCE LOCALIZED TREE DAMAGE WITH QLCS APPROACHING THE ERN SHORE OF LK MI. DISCUSSION...MINOR INTENSIFICATION AND SOLIDIFICATION OF HIGH-REFLECTIVITY CORES HAVE RECENTLY OCCURRED WITH THE LONG-LIVED QLCS CROSSING SRN LK MI TO THE CHICAGOLAND AREA. 63-65 DEG F SURFACE DEW POINTS PERSIST DOWNSTREAM ACROSS SRN LOWER MI...WITH MODIFIED 00Z GRB/APX RAOBS SUPPORTIVE OF MEAGER SURFACE-BASED BUOYANCY /LARGELY AOB 500 J/KG/ AMIDST MODEST INHIBITION. WITH VERY STRONG SPEED SHEAR SAMPLED IN GRR VWP DATA /0-6 KM VALUES NEAR 70 KT/ AND CURRENT LINEAR MOTION AROUND 40 KT...IT APPEARS PROBABLE THAT 35-45 KT WIND GUSTS SHOULD ACCOMPANY EMBEDDED BULGING SEGMENTS WITHIN THE LINE AS IT REACHES THE WRN LOWER MI LAKE SHORE. ..GRAMS/EDWARDS.. 09/21/2014 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...APX...IWX...GRR...LOT... LAT...LON 43878675 44388664 44618644 44638620 44608594 44408545 43808513 42938520 41808596 41608667 41778727 42568680 43338660 43878675

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