Lousiana/Arkansas/SoMo Severe Weather Thread 11/17

SPC convective outlook. Puts the best dynamics for severe storms in North La through Southern Missouri.



Jet stream data showing jet split beginning. The enhanced area is basically between where the jets will lie.

Current Watches:

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URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 546 NWS STORM PREDICTION CENTER NORMAN OK 1105 AM CST TUE NOV 17 2015 THE NWS STORM PREDICTION CENTER HAS ISSUED A * TORNADO WATCH FOR PORTIONS OF CENTRAL INTO SOUTHEAST ARKANSAS * EFFECTIVE THIS TUESDAY MORNING AND EVENING FROM 1105 AM UNTIL 600 PM CST. * PRIMARY THREATS INCLUDE... A FEW TORNADOES POSSIBLE ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE SUMMARY...THUNDERSTORMS SHOULD GRADUALLY INTENSIFY ACROSS THE WATCH AREA THIS AFTERNOON WITH A RISK FOR EMBEDDED SUPERCELL STRUCTURES CAPABLE OF A FEW TORNADOES AND DAMAGING OUTFLOW WINDS. THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 65 STATUTE MILES EAST AND WEST OF A LINE FROM 70 MILES NORTH NORTHEAST OF LITTLE ROCK ARKANSAS TO 35 MILES EAST SOUTHEAST OF EL DORADO ARKANSAS. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU6). 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.

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LINK

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URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 545 NWS STORM PREDICTION CENTER NORMAN OK 850 AM CST TUE NOV 17 2015 THE NWS STORM PREDICTION CENTER HAS ISSUED A * TORNADO WATCH FOR PORTIONS OF SOUTHWEST ARKANSAS WESTERN AND CENTRAL LOUISIANA EASTERN AND SOUTHEAST TEXAS COASTAL WATERS * EFFECTIVE THIS TUESDAY MORNING AND AFTERNOON FROM 850 AM UNTIL 400 PM CST. * PRIMARY THREATS INCLUDE... A COUPLE TORNADOES POSSIBLE ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE SUMMARY...THUNDERSTORMS SHOULD CONTINUE TO INTENSIFY THIS MORNING INTO AFTERNOON AS ACTIVITY SPREADS FROM WEST TO EAST ACROSS THE WATCH AREA. THE STRONGEST STORMS WILL BE CAPABLE OF A FEW TORNADOES AND LOCALLY DAMAGING WINDS. THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 70 STATUTE MILES EAST AND WEST OF A LINE FROM 40 MILES WEST SOUTHWEST OF PORT ARTHUR TEXAS TO 35 MILES NORTHWEST OF EL DORADO ARKANSAS. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU5). 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. &&

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LINK

The skinny: Squall line moving out of Texas as part of cold front producing impressive straight line winds. In the "warm" sector ahead of the front, any cells that can get going will have plenty of shear to work with and get spinning.