

522 

WWUS20 KWNS 201959

SEL8

SPC WW 201959

KYZ000-NCZ000-TNZ000-210300-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 468

NWS STORM PREDICTION CENTER NORMAN OK

300 PM CDT WED AUG 20 2014



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  CENTRAL AND EASTERN KENTUCKY

  FAR WESTERN NORTH CAROLINA

  MIDDLE AND EASTERN TENNESSEE



* EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 300 PM

  UNTIL 1000 PM CDT.



* PRIMARY THREATS INCLUDE...

  ISOLATED 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 75

STATUTE MILES EAST AND WEST OF A LINE FROM 15 MILES WEST OF

CHATTANOOGA TENNESSEE TO 70 MILES NORTH NORTHWEST OF LONDON

KENTUCKY.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU8).



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...THUNDERSTORMS SHOULD CONTINUE TO INCREASE IN COVERAGE

AND INTENSITY THIS AFTERNOON AMIDST A VERY MOIST AND UNSTABLE AIR

MASS. WHILE VERTICAL SHEAR IS SOMEWHAT MARGINAL FOR STORM

ORGANIZATION...THE DEGREE OF INSTABILITY AND HIGH MOISTURE CONTENT

WILL FOSTER INTENSE UP/DOWNDRAFTS CAPABLE OF DAMAGING WINDS AND

HAIL.



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 550. MEAN STORM MOTION

VECTOR 32025.





...MEAD



711 

WWUS20 KWNS 201959

SEL8

SPC WW 201959

KYZ000-NCZ000-TNZ000-210300-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 468

NWS STORM PREDICTION CENTER NORMAN OK

300 PM CDT WED AUG 20 2014



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  CENTRAL AND EASTERN KENTUCKY

  FAR WESTERN NORTH CAROLINA

  MIDDLE AND EASTERN TENNESSEE



* EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 300 PM

  UNTIL 1000 PM CDT.



* PRIMARY THREATS INCLUDE...

  ISOLATED 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 75

STATUTE MILES EAST AND WEST OF A LINE FROM 15 MILES WEST OF

CHATTANOOGA TENNESSEE TO 70 MILES NORTH NORTHWEST OF LONDON

KENTUCKY.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU8).



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...THUNDERSTORMS SHOULD CONTINUE TO INCREASE IN COVERAGE

AND INTENSITY THIS AFTERNOON AMIDST A VERY MOIST AND UNSTABLE AIR

MASS. WHILE VERTICAL SHEAR IS SOMEWHAT MARGINAL FOR STORM

ORGANIZATION...THE DEGREE OF INSTABILITY AND HIGH MOISTURE CONTENT

WILL FOSTER INTENSE UP/DOWNDRAFTS CAPABLE OF DAMAGING WINDS AND

HAIL.



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 550. MEAN STORM MOTION

VECTOR 32025.





...MEAD

