

026 

WWUS20 KWNS 091759

SEL9

SPC WW 091759

IAZ000-ILZ000-MOZ000-100100-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 39

NWS STORM PREDICTION CENTER NORMAN OK

100 PM CDT THU APR 9 2015



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* TORNADO WATCH FOR PORTIONS OF

  SOUTHEAST IOWA

  WESTERN ILLINOIS

  NORTHERN MISSOURI



* EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 100 PM UNTIL

  800 PM CDT.



* PRIMARY THREATS INCLUDE...

  A FEW TORNADOES LIKELY WITH A COUPLE INTENSE TORNADOES POSSIBLE

  SCATTERED DAMAGING WINDS LIKELY WITH ISOLATED SIGNIFICANT GUSTS

    TO 75 MPH POSSIBLE

  SCATTERED LARGE HAIL LIKELY WITH ISOLATED VERY LARGE HAIL EVENTS

    TO 2.5 INCHES IN DIAMETER POSSIBLE



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 90 STATUTE

MILES EAST AND WEST OF A LINE FROM 45 MILES NORTHEAST OF CEDAR

RAPIDS IOWA TO 5 MILES SOUTH OF COLUMBIA MISSOURI.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU9).



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.



&&



DISCUSSION...DISCRETE CELLS FORMING ALONG A COLD FRONT AND SURFACE

CYCLONE WILL INTENSIFY THIS AFTERNOON WITH LARGE HAIL AND A FEW

TORNADOES THE PRIMARY INITIAL HAZARDS.



AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL

SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 65 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

500. MEAN STORM MOTION VECTOR 24035.





...GRAMS/CORFIDI



785 

WWUS20 KWNS 091759

SEL9

SPC WW 091759

IAZ000-ILZ000-MOZ000-100100-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 39

NWS STORM PREDICTION CENTER NORMAN OK

100 PM CDT THU APR 9 2015



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* TORNADO WATCH FOR PORTIONS OF

  SOUTHEAST IOWA

  WESTERN ILLINOIS

  NORTHERN MISSOURI



* EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 100 PM UNTIL

  800 PM CDT.



* PRIMARY THREATS INCLUDE...

  A FEW TORNADOES LIKELY WITH A COUPLE INTENSE TORNADOES POSSIBLE

  SCATTERED DAMAGING WINDS LIKELY WITH ISOLATED SIGNIFICANT GUSTS

    TO 75 MPH POSSIBLE

  SCATTERED LARGE HAIL LIKELY WITH ISOLATED VERY LARGE HAIL EVENTS

    TO 2.5 INCHES IN DIAMETER POSSIBLE



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 90 STATUTE

MILES EAST AND WEST OF A LINE FROM 45 MILES NORTHEAST OF CEDAR

RAPIDS IOWA TO 5 MILES SOUTH OF COLUMBIA MISSOURI.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU9).



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.



&&



DISCUSSION...DISCRETE CELLS FORMING ALONG A COLD FRONT AND SURFACE

CYCLONE WILL INTENSIFY THIS AFTERNOON WITH LARGE HAIL AND A FEW

TORNADOES THE PRIMARY INITIAL HAZARDS.



AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL

SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 65 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

500. MEAN STORM MOTION VECTOR 24035.





...GRAMS/CORFIDI

