SPC AC 011959
   
   DAY 1 CONVECTIVE OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0159 PM CST THU APR 01 2004
   
   VALID 012000Z - 021200Z
   
   GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 30 ESE OAJ 30 N RIC
   40 SW AOO 25 NE PSB AVP 10 W BDL 30 SE BOS.
   
   GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 65 SW GBN 60 SE EED
   35 NW EED 35 NNE DAG 25 NE BFL 45 ENE SCK 25 W U31 25 ENE BAM ENV 25
   NE MLD 35 NNE SUN 20 NE 27U 20 NW LVM 30 NNE SHR 40 SSW 81V 40 N 4FC
   40 WNW ALS 40 W RTN 45 ENE 4CR 25 NW HOB BGS 10 SSE SJT 30 NW COT 20
   SSE CRP.
   
   ...NO SVR TSTM AREAS FORECAST...
   
   ...ERN NC NWD TO PA AND SRN NEW ENGLAND...
   LARGE UPPER LOW WILL REMAIN NEARLY STATIONARY ACROSS THE ERN STATES
   THIS FORECAST PERIOD.  DRY SLOT WRAPPING FROM THE ERN PERIPHERY OF
   THIS LOW OVER THE WRN ATLANTIC WNWWD ACROSS DE/NJ INTO CENTRAL PA
   WILL CONTINUE TO ALLOW FOR SOME SURFACE HEATING THIS AFTERNOON. 
   THIS COMBINED WITH COLD MID-LEVEL TEMPERATURES WILL SUPPORT
   SUFFICIENT SURFACE BASED INSTABILITY WITHIN REGION OF LARGE SCALE
   ASCENT FOR ADDITIONAL THUNDERSTORM DEVELOPMENT FROM DE/SRN NJ INTO
   SERN PA.  LOW-LEVEL CONVERGENCE AXIS EXTENDING FROM SERN PA ACROSS
   DE SHOULD BE THE MAIN FOCUS FOR ADDITIONAL THUNDERSTORMS THIS
   AFTERNOON...WITH MODEST DEEP LAYER SHEAR AT BEST SUPPORTING SOME
   STORM ORGANIZATION.  COLD MID-LEVEL TEMPERATURES SUGGEST A THREAT
   FOR SMALL HAIL WITH THE STRONGEST ACTIVITY.  HOWEVER...WEAK
   INSTABILITY WILL LIMIT THE THREAT FOR SEVERE STORMS.  THUNDERSTORM
   POTENTIAL IS EXPECTED TO DECREASE BY EARLY EVENING WITH THE LOSS OF
   DAY TIME HEATING.
   
   ...WESTERN STATES...
   THUNDERSTORMS WILL CONTINUE TO DEVELOP GENERALLY FROM THE GREAT
   BASIN SEWD TO SWRN TX...GIVEN SUFFICIENT MOISTENING AND LARGE SCALE
   ASCENT TO THE EAST AND SOUTH OF THE UPPER TROUGH DIGGING SSEWD ALONG
   THE CA/NV BORDER.  WEAKNESS OF INSTABILITY AND/OR SHEAR ACROSS MUCH
   OF THE REGION WILL PRECLUDE ORGANIZED SEVERE THREAT.  HOWEVER...
   STEEP LAPSE RATES AND MARGINAL INSTABILITY ACROSS SWRN TX MAY
   SUPPORT ONE OR TWO STORMS WITH MARGINALLY SEVERE HAIL.
   
   ..PETERS.. 04/01/2004
   
   ...NOTICE...
   FOR USERS DECODING THE POINTS PARAGRAPH HEREIN...LATITUDE AND
   LONGITUDE POINTS FOR THE CATEGORICAL AND PROBABILISTIC OUTLOOK
   GRAPHICS ALSO ARE LOCATED IN A SEPARATE PRODUCT UNDER THE WMO
   HEADINGS WUUS01 PTSDY1...WUUS02 PTSDY2...AND WUUS03 PTSDY3.  THE
   INCLUSION OF POINTS IN THIS PRODUCT WILL EVENTUALLY BE DISCONTINUED.
   
   NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED FOR 0100Z