Tornado Watch 547

Issued

Jun 28, 2005, 2:45 PM MDT (20:45 UTC)

Expired

Jun 28, 2005, 10:00 PM MDT

In force

7 hr

Issued by

the Storm Prediction Center

The Rapid City radar (KUDX), 115 km from the middle of the area, began a volume at 20:48 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

• Mesoscale Discussion 1524Jun 28, 1:32 PM MDT
• Mesoscale Discussion 1528Jun 28, 5:26 PM MDT
• Mesoscale Discussion 1532Jun 28, 9:15 PM MDT

000 
WWUS20 KWNS 282045
SEL7  
SPC WW 282045
NDZ000-NEZ000-SDZ000-290400-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 547
NWS STORM PREDICTION CENTER NORMAN OK
245 PM MDT TUE JUN 28 2005

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF 

       SOUTHWESTERN NORTH DAKOTA
       NORTHWESTERN NEBRASKA
       WESTERN SOUTH DAKOTA

EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 245 PM UNTIL
1000 PM MDT.

TORNADOES...HAIL TO 4 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 65 STATUTE MILES
EAST AND WEST OF A LINE FROM 35 MILES EAST OF ALLIANCE NEBRASKA TO
20 MILES NORTH OF DICKINSON NORTH DAKOTA.  FOR A COMPLETE
DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE
(WOUS64 KWNS WOU7).

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 545...WW 546...

DISCUSSION...SELY FLOW AHEAD OF DEEPENING LOW OVER WY HAS RESULTED
IN A VERY UNSTABLE...WEAKLY CAPPED AIR MASS INTO THE HIGH PLAINS
WITH VERY FAVORABLE SHEAR PROFILES IN SUPPORT OF SUPERCELL
DEVELOPMENT.  SEVERE THUNDERSTORMS EXPECTED TO RAPIDLY DEVELOP
VICINITY WY/SD BORDER AND RAPIDLY BECOME SUPERCELLS.  IN ADDITION TO
VERY LARGE HAIL...TORNADOS WILL BE A THREAT WITH ANY SUPERCELL.
ACTIVITY WILL MOVE NE/E ACROSS WATCH DURING THE EVENING.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 4 INCHES. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 600.
MEAN STORM MOTION VECTOR 25030.


...HALES

420,1032 470,1041 470,1012 420,1005

Tornado Watches in South Dakota, 2005Tornado Watches in North Dakota, 2005Tornado Watches in Nebraska, 2005Every tornado watch in 2005

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.