| Categorical Graphic |
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| Probabilistic Tornado Graphic |
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| Probability of a tornado within 25 miles of a point. Hatched Area: 10% or greater probability of EF2 - EF5 tornadoes within 25 miles of a point. |
| Probabilistic Damaging Wind Graphic |
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| Probability of damaging thunderstorm winds or wind gusts of 50 knots or higher within 25 miles of a point. Hatched Area: 10% of greater probability of wind gusts 65 knots or greater within 25 miles of a point. |
| Probabilistic Large Hail Graphic |
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| Probability of hail 1" or larger within 25 miles of a point. Hatched Area: 10% or greater probability of hail 2" or larger within 25 miles of a point. |
SPC AC 251600 DAY 1 CONVECTIVE OUTLOOK NWS STORM PREDICTION CENTER NORMAN OK 1000 AM CST FRI JAN 25 2013 VALID 251630Z - 261200Z ...NO TSTM AREAS FORECAST... ...SRN CA INTO SRN AZ... WATER VAPOR IMAGERY SHOWS AN UPPER LOW OFF THE SRN CA/NRN BAJA COAST...WITH THE SYSTEM SHOWING SIGNS OF BEGINNING TO MOVE SLOWLY EWD OVER THE LAST SEVERAL HOURS. NLDN DATA HAVE INDICATED ISOLATED LIGHTNING WELL OFF THE NRN BAJA COAST. AS THE SYSTEM SLOWLY MOVES TOWARD THE COAST LATER TONIGHT THERE WILL BE CONTINUED POTENTIAL FOR AN ISOLATED LIGHTNING STRIKE OR TWO TO OCCUR OVER THE COASTAL WATERS AND SWRN PARTS OF SRN CA...WITH THE THREAT SPREADING EWD OVER PARTS OF SRN AZ. LIGHTNING COVERAGE IS EXPECTED TO REMAIN QUITE LIMITED (LESS THAN 10% THRESHOLD) AND A THUNDERSTORM AREA WILL NOT BE DELINEATED. ...PACIFIC NORTHWEST COAST... A BROAD NRN STREAM COLD UPPER TROUGH AXIS IS EVIDENT IN SATELLITE IMAGERY OFF THE BC AND PACIFIC NW COAST WEST OF 135W...WITH SEVERAL WEAK VORTICITY MAXIMA ROTATING THROUGH THE TROUGH. CELLULAR CONVECTIVE ELEMENTS ARE ASSOCIATED WITH THE VORTICITY MAXIMA...AND AS THE TROUGH MOVES EWD TOWARD THE COAST TONIGHT...ISOLATED THUNDERSTORMS MAY DEVELOP WEST OF THE IMMEDIATE COASTAL WATERS. ..WEISS/KERR.. 01/25/2013 CLICK TO GET WUUS01 PTSDY1 PRODUCT NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 2000Z