

518 

WWUS20 KWNS 292005

SEL0

SPC WW 292005

COZ000-KSZ000-NEZ000-WYZ000-300300-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 510

NWS STORM PREDICTION CENTER NORMAN OK

205 PM MDT MON SEP 29 2014



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* TORNADO WATCH FOR PORTIONS OF

  NORTHEAST COLORADO

  NORTHWEST KANSAS

  SOUTHWEST NEBRASKA INCLUDING THE SOUTHERN PANHANDLE

  FAR SOUTHEAST WYOMING



* EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 205 PM UNTIL

  900 PM MDT.



* PRIMARY THREATS INCLUDE...

  A COUPLE TORNADOES POSSIBLE

  SCATTERED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

  SCATTERED LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 75 STATUTE

MILES EAST AND WEST OF A LINE FROM 55 MILES SOUTH OF LIMON

COLORADO TO 5 MILES NORTH OF ALLIANCE NEBRASKA.  FOR A COMPLETE

DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE

(WOUS64 KWNS WOU0).



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.



&&



OTHER WATCH INFORMATION...CONTINUE...WW 509...



DISCUSSION...TSTMS ARE EXPECTED TO DEVELOP OFF THE HIGH TERRAIN AS

WELL AS INVOF THE LEE CYCLONE AND ATTENDANT QUASI-STATIONARY FRONT

AS LARGE-SCALE FORCING FOR ASCENT INCREASES AHEAD OF A STRONG

SHORT-WAVE TROUGH MOVING THROUGH THE CNTRL AND SRN ROCKIES. LOCALLY

BACKED NEAR-SURFACE FLOW COUPLED WITH THE POTENTIAL FOR STORMS TO

INTERACT WITH THE STATIONARY FRONT SUGGEST A RISK FOR A COUPLE OF

TORNADOES AS STORMS MATURE LATER THIS AFTERNOON INTO EVENING. WITH

TIME...ACTIVITY SHOULD GROW UPSCALE INTO A CONVECTIVE SYSTEM WITH

THE SEVERE WEATHER THREAT TRANSITIONING TO DAMAGING STRAIGHT LINE

WINDS. LARGE HAIL WILL BE POSSIBLE IN BOTH REGIMES.



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

SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

400. MEAN STORM MOTION VECTOR 19030.





...MEAD



847 

WWUS20 KWNS 292005

SEL0

SPC WW 292005

COZ000-KSZ000-NEZ000-WYZ000-300300-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 510

NWS STORM PREDICTION CENTER NORMAN OK

205 PM MDT MON SEP 29 2014



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* TORNADO WATCH FOR PORTIONS OF

  NORTHEAST COLORADO

  NORTHWEST KANSAS

  SOUTHWEST NEBRASKA INCLUDING THE SOUTHERN PANHANDLE

  FAR SOUTHEAST WYOMING



* EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 205 PM UNTIL

  900 PM MDT.



* PRIMARY THREATS INCLUDE...

  A COUPLE TORNADOES POSSIBLE

  SCATTERED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

  SCATTERED LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 75 STATUTE

MILES EAST AND WEST OF A LINE FROM 55 MILES SOUTH OF LIMON

COLORADO TO 5 MILES NORTH OF ALLIANCE NEBRASKA.  FOR A COMPLETE

DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE

(WOUS64 KWNS WOU0).



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.



&&



OTHER WATCH INFORMATION...CONTINUE...WW 509...



DISCUSSION...TSTMS ARE EXPECTED TO DEVELOP OFF THE HIGH TERRAIN AS

WELL AS INVOF THE LEE CYCLONE AND ATTENDANT QUASI-STATIONARY FRONT

AS LARGE-SCALE FORCING FOR ASCENT INCREASES AHEAD OF A STRONG

SHORT-WAVE TROUGH MOVING THROUGH THE CNTRL AND SRN ROCKIES. LOCALLY

BACKED NEAR-SURFACE FLOW COUPLED WITH THE POTENTIAL FOR STORMS TO

INTERACT WITH THE STATIONARY FRONT SUGGEST A RISK FOR A COUPLE OF

TORNADOES AS STORMS MATURE LATER THIS AFTERNOON INTO EVENING. WITH

TIME...ACTIVITY SHOULD GROW UPSCALE INTO A CONVECTIVE SYSTEM WITH

THE SEVERE WEATHER THREAT TRANSITIONING TO DAMAGING STRAIGHT LINE

WINDS. LARGE HAIL WILL BE POSSIBLE IN BOTH REGIMES.



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

SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

400. MEAN STORM MOTION VECTOR 19030.





...MEAD

