Tornado Watch 370

Issued

Jun 29, 2014, 10:54 PM CDT (03:54 UTC)

Expired

Jun 30, 2014, 4:00 AM CDT

In force

5 hr

Issued by

the Storm Prediction Center

Largest hail expected

2 in

Strongest gust expected

60 kt

The Milwaukee radar (KMKX), 66 km from the middle of the area, began a volume at 03:55 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

50%

One or more EF2 to EF5 tornadoes

30%

Ten or more severe wind reports

40%

One or more gusts of 65 knots or more

20%

Ten or more severe hail reports

40%

One or more hailstones of 2 inches or more

30%

Six or more combined severe hail and wind reports

70%

• Mesoscale Discussion 1202Jun 29, 7:50 PM CDT
• Mesoscale Discussion 1204Jun 29, 9:43 PM CDT
• Mesoscale Discussion 1208Jun 30, 1:41 AM CDT

673 
WWUS20 KWNS 300354
SEL0  
SPC WW 300354
IAZ000-ILZ000-WIZ000-300900-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 370
NWS STORM PREDICTION CENTER NORMAN OK
1055 PM CDT SUN JUN 29 2014

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* TORNADO WATCH FOR PORTIONS OF 
  EXTREME EAST CENTRAL IOWA
  NORTHERN ILLINOIS
  SOUTHERN WISCONSIN

* EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 1055 PM
  UNTIL 400 AM CDT.

* PRIMARY THREATS INCLUDE...
  A FEW TORNADOES AND A COUPLE INTENSE TORNADOES POSSIBLE
  SCATTERED LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 2
    INCHES IN DIAMETER POSSIBLE
  SCATTERED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 45 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 50 MILES EAST NORTHEAST OF
JANESVILLE WISCONSIN TO 30 MILES SOUTH SOUTHWEST OF DUBUQUE IOWA.
 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 367...WW 368...WW 369...

DISCUSSION...STORM CLUSTERS WITH EMBEDDED SUPERCELLS WILL PERSIST
FOR A FEW MORE HOURS IN AN ENVIRONMENT SUPPORTIVE OF A SUPERCELL
TORNADO RISK...GIVEN RICH MOISTURE...MODERATE-STRONG
INSTABILITY...AND SUFFICIENTLY STRONG VERTICAL SHEAR.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
550. MEAN STORM MOTION VECTOR 27030.


...THOMPSON

Tornado Watches in Illinois, 2014Tornado Watches in Wisconsin, 2014Tornado Watches in Iowa, 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.