Tornado Watch 335

Issued

Jun 22, 2015, 3:56 PM CDT (20:56 UTC)

Expired

Jun 23, 2015, 1:00 AM CDT

In force

9 hr

Issued by

the Storm Prediction Center

Largest hail expected

2 in

Strongest gust expected

65 kt

The Quad Cities radar (KDVN), 73 km from the middle of the area, began a volume at 20:58 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

40%

One or more gusts of 65 knots or more

30%

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

80%

• Mesoscale Discussion 1119Jun 22, 1:22 PM CDT
• Mesoscale Discussion 1123Jun 22, 6:08 PM CDT
• Mesoscale Discussion 1125Jun 22, 7:34 PM CDT
• Mesoscale Discussion 1126Jun 22, 8:16 PM CDT
• Mesoscale Discussion 1128Jun 22, 10:00 PM CDT

120 
WWUS20 KWNS 222054
SEL5  
SPC WW 222054
IAZ000-ILZ000-MOZ000-230400-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 335
NWS STORM PREDICTION CENTER NORMAN OK
355 PM CDT MON JUN 22 2015

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* TORNADO WATCH FOR PORTIONS OF 
  SOUTHEASTERN IOWA
  PARTS OF NORTHERN AND CENTRAL ILLINOIS
  FAR NORTHEAST MISSOURI

* EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 355 PM UNTIL
  1100 PM CDT.

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

SUMMARY...THUNDERSTORMS ARE FORECAST TO INCREASE IN COVERAGE ACROSS
THE SOUTHEAST IOWA VICINITY OVER THE NEXT 1-2 HOURS...WHILE STORMS
ONGOING FARTHER EAST INTO NORTHERN ILLINOIS ALSO INTENSIFY.  RISK
FOR DAMAGING WINDS AND HAIL WILL EXIST WITH THE DEVELOPING
STORMS...ALONG WITH POTENTIAL FOR A COUPLE OF TORNADOES.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 60 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 15 MILES NORTHWEST OF
KNOXVILLE IOWA TO 35 MILES EAST OF BLOOMINGTON ILLINOIS.  FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU5).

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 333...WW 334...

AVIATION...TORNADOES AND 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 24040.


...GOSS

Tornado Watches in Illinois, 2015Tornado Watches in Iowa, 2015Tornado Watches in Missouri, 2015Every tornado watch in 2015

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.