

145 

WWUS20 KWNS 191834

SEL7

SPC WW 191834

INZ000-MIZ000-OHZ000-LEZ000-200100-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 467

NWS STORM PREDICTION CENTER NORMAN OK

235 PM EDT TUE AUG 19 2014



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  NORTH CENTRAL AND NORTHEAST INDIANA

  SOUTHERN LOWER MICHIGAN

  EXTREME NORTHWEST OHIO

  LAKE ERIE



* EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 235 PM UNTIL

  900 PM EDT.



* PRIMARY THREATS INCLUDE...

  SCATTERED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

  ISOLATED LARGE HAIL EVENTS TO 1 INCH IN DIAMETER POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 45

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 15 MILES SOUTH

SOUTHWEST OF SOUTH BEND INDIANA TO 25 MILES NORTH NORTHEAST OF

DETROIT MICHIGAN.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU7).



PRECAUTIONARY/PREPAREDNESS ACTIONS...



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 BAND OF THUNDERSTORMS IS EXPECTED TO STRENGTHEN THIS

AFTERNOON WHILE MOVING EWD INTO A MODERATELY UNSTABLE ENVIRONMENT.

MLCAPE OF 1500-2000 J/KG AND 30-35 KT MIDLEVEL FLOW WILL SUPPORT THE

RISK FOR A FEW DAMAGING GUSTS AND ISOLATED LARGE HAIL WITH LINE

SEGMENTS AND MULTICELL CLUSTERS THROUGH THE AFTERNOON/EVENING.



AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT

TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS.

A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION

VECTOR 27030.





...THOMPSON



418 

WWUS20 KWNS 191834

SEL7

SPC WW 191834

INZ000-MIZ000-OHZ000-LEZ000-200100-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 467

NWS STORM PREDICTION CENTER NORMAN OK

235 PM EDT TUE AUG 19 2014



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  NORTH CENTRAL AND NORTHEAST INDIANA

  SOUTHERN LOWER MICHIGAN

  EXTREME NORTHWEST OHIO

  LAKE ERIE



* EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 235 PM UNTIL

  900 PM EDT.



* PRIMARY THREATS INCLUDE...

  SCATTERED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

  ISOLATED LARGE HAIL EVENTS TO 1 INCH IN DIAMETER POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 45

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 15 MILES SOUTH

SOUTHWEST OF SOUTH BEND INDIANA TO 25 MILES NORTH NORTHEAST OF

DETROIT MICHIGAN.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU7).



PRECAUTIONARY/PREPAREDNESS ACTIONS...



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 BAND OF THUNDERSTORMS IS EXPECTED TO STRENGTHEN THIS

AFTERNOON WHILE MOVING EWD INTO A MODERATELY UNSTABLE ENVIRONMENT.

MLCAPE OF 1500-2000 J/KG AND 30-35 KT MIDLEVEL FLOW WILL SUPPORT THE

RISK FOR A FEW DAMAGING GUSTS AND ISOLATED LARGE HAIL WITH LINE

SEGMENTS AND MULTICELL CLUSTERS THROUGH THE AFTERNOON/EVENING.



AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT

TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS.

A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION

VECTOR 27030.





...THOMPSON

