URGENT – IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 123 NWS STORM PREDICTION CENTER NORMAN OK 935 AM EDT THU APR 18 2013 THE NWS STORM PREDICTION CENTER HAS ISSUED A * TORNADO WATCH FOR PORTIONS OF EASTERN ILLINOIS CENTRAL AND EASTERN INDIANA SOUTHERN LOWER MICHIGAN NORTHWEST OHIO OHIO LAKE MICHIGAN * EFFECTIVE THIS THURSDAY MORNING AND AFTERNOON FROM 935 AM UNTIL 500 PM EDT. …THIS IS A PARTICULARLY DANGEROUS SITUATION… * PRIMARY THREATS INCLUDE… SEVERAL INTENSE TORNADOES LIKELY SEVERAL SIGNIFICANT DAMAGING WIND GUSTS TO 80 MPH POSSIBLE A FEW VERY LARGE HAIL EVENTS TO 2 INCHES IN DIAMETER POSSIBLE THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 75 STATUTE MILES EAST AND WEST OF A LINE FROM 65 MILES EAST NORTHEAST OF SOUTH BEND INDIANA TO 60 MILES SOUTH SOUTHWEST OF TERRE HAUTE INDIANA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3). PRECAUTIONARY/PREPAREDNESS ACTIONS… REMEMBER…A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. && OTHER WATCH INFORMATION…CONTINUE…WW 122… DISCUSSION…DISCRETE SUPERCELL DEVELOPMENT IS POSSIBLE AHEAD OF THE INTENSIFYING PRE-FRONTAL SQUALL LINE THAT WILL RAPIDLY MOVE NORTHEASTWARD ACROSS THE WATCH AREA THIS MORNING. GIVEN THE STRENGTH OF THE LOW-LEVEL SHEAR…A FEW TORNADOES ARE POSSIBLE…BOTH IN SUPERCELLS AND WITHIN MESO VORTICES EMBEDDED WITHIN THE LINE. ACTIVITY MAY BE CAPABLE OF PRODUCING STRONG TO LOCALLY EXTREME WIND DAMAGE…REGARDLESS OF WHETHER TORNADIC OR STRAIGHT LINE IN NATURE, ]]>
