Jul 22, 2008 0100 UTC Day 1 Convective Outlook
Updated: Tue Jul 22 01:05:13 UTC 2008
Probabilistic to Categorical Outlook Conversion Table (Effective Feb 14, 2006).
Categorical Graphic
20080722 0100 UTC Day 1 Outlook Graphic
Probabilistic Tornado Graphic
20080722 0100 UTC Day 1 Tornado Probabilities Graphic
Torndao Legend Image
Probabilistic Damaging Wind Graphic
20080722 0100 UTC Day 1 Damaging Wind Probabilities Graphic
Wind Legend Image
Probabilistic Large Hail Graphic
20080722 0100 UTC Day 1 Large Hail Probabilities Graphic
Hail Legend Image
   SPC AC 220100
   
   DAY 1 CONVECTIVE OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0800 PM CDT MON JUL 21 2008
   
   VALID 220100Z - 221200Z
   
   ...THERE IS A MDT RISK OF SVR TSTMS ACROSS FAR SOUTHERN IA/NORTHERN
   MO INTO CENTRAL/SOUTHERN INDIANA...
   
   ...THERE IS A SLGT RISK OF SVR TSTMS ACROSS THE MISSOURI AND OHIO
   RIVER VALLEYS...
   
   ...CENTRAL PLAINS TO MIDDLE MISSISSIPPI/OHIO VALLEYS...
   LATEST SURFACE ANALYSIS FEATURES A ROUGHLY WEST-EAST FRONTAL
   BOUNDARY FROM SOUTHERN NEB INTO CENTRAL PORTIONS OF IL/INDIANA. AS A
   POTENT SHORTWAVE TROUGH CONTINUES TO SLIDE SOUTHEASTWARD OVER THE
   UPPER MIDWEST PER WATER VAPOR IMAGERY...THIS SURFACE BOUNDARY IS
   EXPECTED TO BE THE PRIMARY FOCUS FOR A POTENTIALLY WIDESPREAD SEVERE
   WIND/HAIL THREAT THROUGH THE NIGHT. LOWER 70S F DEWPOINTS IN PLACE
   ALONG THE FRONTAL ZONE ARE CONTRIBUTING TO STRONG INSTABILITY WITH
   3000-4500 J/KG MLCAPE. WITH A LIKLIHOOD OF UPSCALE GROWTH INTO A
   SEVERE/FAST-MOVING MCS THIS EVENING ALONG THE FRONTAL ZONE...00Z
   OBSERVED RAOB DATA FROM LINCOLN IL/WILMINGTON OH HAS PROMPTED AN
   EASTWARD EXTENSION OF THE MODERATE/SLIGHT RISK AREAS.
   
   ...NV/ORE...
   UPPER LOW NOW ALONG THE NORTHERN CA COAST WILL CONTINUE TO SPREAD
   NORTHEASTWARD THROUGH THE NIGHT. INCREASINGLY COOL TEMPERATURES
   ALOFT AND MODERATELY STRONG DEEP SOUTHERLY FLOW WILL FAVOR AN
   ISOLATED SEVERE HAIL/WIND RISK THROUGH THE EVENING. REFERENCE
   MESOSCALE DISCUSSION 1846 FOR LATEST DETAILS ACROSS NV.
   
   ...EASTERN STATES...
   ISOLATED SEVERE WIND THREAT MAY CONTINUE OVER THE NEXT FEW HOURS
   ACROSS PORTIONS OF THE SOUTHEAST STATES AND CENTRAL APPALACHIANS
   VICINITY...BUT A GRADUALLY DIMINISHING TREND IS EXPECTED OVERALL.
   
   ..GUYER.. 07/22/2008
   
   CLICK TO GET WUUS01 PTSDY1 PRODUCT

   NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 0600Z