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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 140054 DAY 1 CONVECTIVE OUTLOOK NWS STORM PREDICTION CENTER NORMAN OK 0754 PM CDT WED MAR 13 2013 VALID 140100Z - 141200Z ...NO TSTM AREAS FORECAST... ...ERN ND THROUGH CNTRL MN... BAND OF WINTRY PRECIPITATION FROM SRN MANITOBA INTO NERN ND WILL DEVELOP SEWD INTO MN OVERNIGHT IN ASSOCIATION WITH A PROGRESSIVE SHORTWAVE TROUGH EMBEDDED WITHIN NWLY FLOW ALOFT. STEEP MID LEVEL LAPSE RATES AND ASCENT ACCOMPANYING THIS FEATURE WILL PROMOTE A LAYER OF WEAK CAPE BASED AROUND 700 MB. CLOUDS IN VISIBLE IMAGERY ALREADY LOOK SOMEWHAT CONVECTIVE IN NATURE OVER NERN ND...AND A FEW LIGHTING STRIKES CANNOT BE RULED OUT AS ACTIVITY DEVELOPS SEWD INTO MN OVERNIGHT. FORECAST SOUNDINGS INDICATE VERY WEAK INSTABILITY /AOB 100 J/KG/ THROUGH THE CONVECTIVE LAYER SUGGESTING COVERAGE OF STRIKES IF THEY OCCUR AT ALL SHOULD REMAIN BELOW THE 10% THRESHOLD. ..DIAL.. 03/14/2013 CLICK TO GET WUUS01 PTSDY1 PRODUCT NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 0600Z |
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