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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. |
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| 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. |
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| 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. |
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SPC AC 141606 DAY 1 CONVECTIVE OUTLOOK NWS STORM PREDICTION CENTER NORMAN OK 1106 AM CDT SAT SEP 14 2013 VALID 141630Z - 151200Z ...NO SVR TSTM AREAS FORECAST... ...SYNOPSIS... MORNING WATER VAPOR IMAGERY SHOWS A LARGE-SCALE UPPER TROUGH OVER THE ERN SEABOARD AS A MID-LEVEL ANTICYCLONE IS SUBJUGATED OVER THE ARKLATEX. IN THE LOW LEVELS...EXPANSIVE HIGH PRESSURE CENTERED OVER THE SRN GREAT LAKES WILL INFLUENCE WEATHER CONDITIONS OVER MUCH OF THE ERN U.S. AND THUNDERSTORMS WILL BE CONFINED TO PARTS OF THE GULF AND SERN COASTS. WEAK MID-LEVEL LAPSE RATES WILL LIKELY PROVE DETRIMENTAL TO CONCENTRATED AREAS OF STRONGER THUNDERSTORM ACTIVITY OVER THE AFOREMENTIONED REGIONS. FARTHER WEST...A BROAD MID-LEVEL LOW GENERALLY QUASI-STATIONARY OVER THE ERN GREAT BASIN WILL PROMOTE THE DEVELOPMENT OF SCATTERED SHOWERS/THUNDERSTORMS DURING THE DAY OVER A LARGE PORTION OF THE INTERIOR WESTERN U.S. EXTENDING INTO THE HIGH PLAINS. WEAK BUOYANCY OWING IN PART TO EXTENSIVE CLOUDINESS WILL TEND TO INHIBIT UPDRAFT STRENGTH AND PRECLUDE LOW SEVERE PROBABILITIES OVER THE PLAINS AND INTERMOUNTAIN WEST. ..SMITH.. 09/14/2013 CLICK TO GET WUUS01 PTSDY1 PRODUCT NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 2000Z |
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