Severe Local Storm Watch and Watch Cancellation Msg
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3
000
WWUS20 KWNS 310028
SEL8
SPC WW 310028
NDZ000-SDZ000-310700-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 478
NWS STORM PREDICTION CENTER NORMAN OK
630 PM MDT SAT AUG 30 2014

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
  WESTERN NORTH DAKOTA
  WESTERN SOUTH DAKOTA

* EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 630 PM
  UNTIL 100 AM MDT.

* PRIMARY THREATS INCLUDE...
  SCATTERED DAMAGING WINDS AND ISOLATED SIGNIFICANT GUSTS TO 75
    MPH POSSIBLE
  ISOLATED VERY LARGE HAIL EVENTS TO 2 INCHES IN DIAMETER POSSIBLE

THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 75
STATUTE MILES EAST AND WEST OF A LINE FROM 35 MILES NORTHEAST OF
DICKINSON NORTH DAKOTA TO 30 MILES EAST SOUTHEAST OF RAPID CITY
SOUTH DAKOTA.  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...SCATTERED TSTMS ARE INCREASING IN COVERAGE/INTENSITY IN
AND NEAR WRN PORTIONS OF WW AREA AND SHOULD OFFER RISK OF SVR
WIND/HAIL AS THEY MOVE EWD THROUGH REMAINDER EVENING.  REF SPC
MESOSCALE DISCUSSION 1641 FOR MORE METEOROLOGICAL DETAILS ON
INITIAL/NEAR-TERM SITUATION.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 26030.


...EDWARDS


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.