Tornado Watch 330

Issued

Jun 18, 2014, 10:09 PM CDT (03:09 UTC)

Expired

Jun 19, 2014, 2:50 AM CDT

In force

5 hr

Issued by

the Storm Prediction Center

Largest hail expected

2.5 in

Strongest gust expected

60 kt

The Sioux Falls radar (KFSD), 144 km from the middle of the area, began a volume at 03:12 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.

Two or more tornadoes

30%

One or more EF2 to EF5 tornadoes

20%

Ten or more severe wind reports

30%

One or more gusts of 65 knots or more

10%

Ten or more severe hail reports

30%

One or more hailstones of 2 inches or more

30%

Six or more combined severe hail and wind reports

60%

• Mesoscale Discussion 1074Jun 18, 8:47 PM CDT
• Mesoscale Discussion 1077Jun 18, 9:42 PM CDT
• Mesoscale Discussion 1082Jun 19, 1:32 AM CDT

422 
WWUS20 KWNS 190310
SEL0  
SPC WW 190310
MNZ000-190900-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 330
NWS STORM PREDICTION CENTER NORMAN OK
1010 PM CDT WED JUN 18 2014

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* TORNADO WATCH FOR PORTIONS OF 
  SOUTH-CENTRAL AND SOUTHWESTERN MINNESOTA

* EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 1010
  PM UNTIL 400 AM CDT.

* PRIMARY THREATS INCLUDE...
  A COUPLE TORNADOES POSSIBLE
  ISOLATED VERY LARGE HAIL EVENTS TO 2.5 INCHES IN DIAMETER
    POSSIBLE
  ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 55 STATUTE
MILES EAST AND WEST OF A LINE FROM 5 MILES SOUTH SOUTHWEST OF
FAIRMONT MINNESOTA TO 30 MILES NORTH NORTHEAST OF ORTONVILLE
MINNESOTA.  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 326...WW 327...WW
328...WW 329...

DISCUSSION...RAPIDLY DEVELOPING TSTMS N OF SFC WARM FRONT STILL
RESIDE IN FAVORABLY UNSTABLE AIR MASS WITH STG LOW-LEVEL SHEAR...AND
MAY CONTINUE TO OFFER RISK FOR BRIEF TORNADOES ALONG WITH LARGE HAIL
AND SVR GUSTS.  MEANWHILE ADDITIONAL DEVELOPMENT AND/OR EXISTING
CONVECTION OVER ERN SD MAY MOVE INTO THIS WW AREA WITH SVR RISK OVER
NEXT SEVERAL HOURS.  REF SPC MESOSCALE DISCUSSION 1077 FOR
ADDITIONAL/INITIAL DETAILS.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 23025.


...EDWARDS

Tornado Watches in Minnesota, 2014Every tornado watch in 2014

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.