BLACK SWAN 17 EXERCISE DIRECTOR C.M. CURTIN, SPC (OH), HHC/2/4 OHMR CHARLES.CURTIN@OHMR.OHIO.GOV +1 614 398 0045 KD8TTE BEXLEY OH 43209 R 071300Z OCT 2017 FM NNO5HD OHMR OH TO ALL BLACK SWAN 17 EXERCISE PARTICIPANTS BT UNCLAS SUBJ: BLACK SWAN 17 OPBULL 9
BLACK SWAN 17 KD8TTE
THIS IS A TEST SEVERE THUNDERSTORM WATCH TO BE USED ONLY DURING A SEVERE THUNDERSTORM EXERCISE/SIMULATION ON OCTOBER 7, 2017. AGAIN…THIS MESSAGE IS FOR TEST PURPOSES ONLY. DO NOT TAKE ACTION BASED ON THIS MESSAGE. TEST…TEST…TEST…IMMEDIATE BROADCAST REQUESTED TEST…TEST…TEST…SEVERE THUNDERSTORM WATCH NUMBER 999 NWS STORM PREDICTION CENTER NORMAN OK 800 AM CDT SAT OCT 7 2017 THE NWS STORM PREDICTION CENTER HAS ISSUED A TEST SEVERE THUNDERSTORM WATCH FOR PORTIONS OF ILLINOIS EFFECTIVE THIS SATURDAY MORNING FROM 900 AM UNTIL 1200 PM CDT. HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE SEVERE THUNDERSTORM WATCH AREA IS THE STATE OF ILLINOIS. REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR 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. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES. DISCUSSION...A DEVELOPING MCS/BOW ECHO ACROSS IOWA IS EXPECTED TO MOVE ESEWD THROUGH THE MORNING AT ROUGHLY 50 KT. THE STORM ENVIRONMENT DOWNSTREAM FEATURES STRONG INSTABILITY AND SUFFICIENT DEEP-LAYER FLOW/SHEAR TO MAINTAIN AN ORGANIZED MCS...AND THERE WILL BE THE POTENTIAL FOR WIDESPREAD DAMAGING WINDS /SOME SIGNIFICANT/ WITH THIS BOWING SYSTEM THROUGH MID-DAY. AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 650. MEAN STORM MOTION VECTOR 29050. THIS IS A TEST MESSAGE. DO NOT TAKE ACTION BASED ON THIS TEST MESSAGE USED ONLY FOR A SEVERE THUNDERSTORM EXERCISE/SIMULATION. BT NNNN |
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