Jan 2, 2006 0800 UTC Day 2 Convective Outlook Updated: Mon Jan 2 06:05:38 UTC 2006 Probabilistic to Categorical Outlook Conversion Table in HTML, or PDF formats.
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SPC AC 020603 DAY 2 CONVECTIVE OUTLOOK NWS STORM PREDICTION CENTER NORMAN OK 1203 AM CST MON JAN 02 2006 VALID 031200Z - 041200Z GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 65 N UIL 20 ENE AST ONP 45 WNW OTH. GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 55 SE ILM 40 WNW HSE 20 E NHK NEL 40 SSE ISP. GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM VEL 10 NE RKS 10 NE RWL 15 SE LAR 15 SSE FCL 35 E ALS 10 WSW FMN 10 SSE 4BL 15 E U28 VEL. ...NO SVR TSTM AREAS FORECAST... PORTION OF INTENSE MID-LATITUDE PACIFIC UPPER JET...NOW NOSING THROUGH THE WESTERN AND CENTRAL STATES...IS SLOWLY WEAKENING/ BREAKING DOWN INTO AMPLIFIED SHORT WAVE IMPULSES. AS THIS OCCURS...PROGRESSIVENESS OF UPPER PATTERN IS SLOWING...BUT MODELS STILL INDICATE THAT UPPER FEATURES WILL CONTINUE EASTWARD WITHIN REMNANT BELT OF STRONGER FLOW...WHICH BY TUESDAY WILL EXTEND FROM THE ROCKIES INTO THE WESTERN ATLANTIC. MOST SIGNIFICANT SHORT WAVE TROUGH IS PROGGED TO SHIFT OFF THE ATLANTIC COAST EARLY IN THE PERIOD...WITH SUBSTANTIAL DRYING IN ITS WAKE...ACROSS THE GULF COAST STATES AND SOUTHEAST. SURFACE RIDGING OVER THE WESTERN GULF OF MEXICO IS EXPECTED TO PRECLUDE A MOIST RETURN FLOW AHEAD OF NEXT SHORT WAVE TROUGH AS IT PROGRESS EAST OF THE ROCKIES...AND POTENTIAL FOR THUNDERSTORM ACTIVITY SEEMS VERY LOW. FARTHER UPSTREAM...MODELS SUGGEST MORE INTENSE PORTION OF UPPER JET ACROSS THE CENTRAL PACIFIC WILL FINALLY BREAK DOWN INTO A HIGH AMPLITUDE TROUGH....WITH A CORRESPONDING DOWNSTREAM RIDGE BUILDING INTO THE WESTERN STATES. THIS SHOULD CONTRIBUTE TO DIMINISHING CONVECTIVE POTENTIAL TO THE WEST OF THE ROCKIES. ...EAST COAST... TIMING OF STRONGER MID-LEVEL DRY INTRUSION ACROSS MID ATLANTIC COASTAL AREAS IS A BIT UNCERTAIN...BUT IF LINGERING CONVECTIVE ACTIVITY ASSOCIATED WITH DEVELOPING SURFACE LOW HAS NOT SPREAD EAST OF COASTAL AREAS BY 03/12Z...IT SHOULD SHORTLY THEREAFTER. ...EASTERN GREAT BASIN/CENTRAL ROCKIES... OROGRAPHY AND INSTABILITY ASSOCIATED WITH MID-LEVEL COLD POOL MAY BE SUPPORTIVE OF WIDELY SCATTERED WEAK THUNDERSTORMS EARLY IN THE PERIOD...BUT THIS THREAT SHOULD DIMINISH BY TUESDAY AFTERNOON...AS SHORT WAVE TROUGH SHIFTS EAST OF THE ROCKIES. ...PACIFIC NORTHWEST... A FEW THUNDERSTORMS APPEAR POSSIBLE VICINITY OF WARM FRONT ALONG COASTAL WASHINGTON/OREGON LATE TUESDAY AFTERNOON AND EVENING. THIS MAY BE SUPPORTED BY A SHORT WAVE TROUGH PROGRESSING THROUGH THE CREST OF BUILDING BROADER SCALE RIDGE...BUT ANY ACTIVITY SEEMS LIKELY TO DIMINISH AS IT PROGRESSES INLAND. ..KERR.. 01/02/2006 ...NOTICE... THE STATION RELATIVE POINTS IN THIS PRODUCT WILL BE DISCONTINUED ON 14 FEBRUARY 2006 BUT WILL REMAIN AVAILABLE IN THE FOLLOWING PRODUCTS: WMO HEADER: AWIPS ID: WUUS01 PTSDY1 WUUS02 PTSDY2 WUUS03 PTSDY3 A SERVICE CHANGE NOTICE ...SCN05-39... PROVIDES DETAILS ON THE TRANSITION. FOR ADDITIONAL DETAILS SEE THE FOLLOWING WEB ADDRESS USING LOWER CASE LETTERS: WWW.NWS.NOAA.GOV/OM/NOTIF.HTM CLICK TO GET WUUS02 PTSDY2 PRODUCT NOTE: THE NEXT DAY 2 OUTLOOK IS SCHEDULED BY 1730Z |