Tornado Watch 50

Issued

Apr 9, 2015, 6:48 PM CDT (23:48 UTC)

Expired

Apr 10, 2015, 1:00 AM CDT

In force

6 hr

Issued by

the Storm Prediction Center

Largest hail expected

2.5 in

Strongest gust expected

60 kt

The Evansville,IN radar (KVWX), 85 km from the middle of the area, began a volume at 23:50 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

20%

Ten or more severe wind reports

70%

One or more gusts of 65 knots or more

10%

Ten or more severe hail reports

70%

One or more hailstones of 2 inches or more

40%

Six or more combined severe hail and wind reports

90%

• Mesoscale Discussion 252Apr 9, 3:45 PM CDT
• Mesoscale Discussion 260Apr 9, 6:11 PM CDT
• Mesoscale Discussion 264Apr 9, 8:01 PM CDT
• Mesoscale Discussion 269Apr 9, 10:56 PM CDT

922 
WWUS20 KWNS 092347
SEL0  
SPC WW 092347
ILZ000-INZ000-KYZ000-MOZ000-100600-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 50
NWS STORM PREDICTION CENTER NORMAN OK
650 PM CDT THU APR 9 2015

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* TORNADO WATCH FOR PORTIONS OF 
  SOUTHERN AND EASTERN ILLINOIS
  WESTERN INDIANA
  WESTERN KENTUCKY
  SOUTHEAST MISSOURI

* EFFECTIVE THIS THURSDAY NIGHT AND FRIDAY MORNING FROM 650 PM
  UNTIL 100 AM CDT.

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

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 75 STATUTE
MILES EAST AND WEST OF A LINE FROM 10 MILES WEST NORTHWEST OF
LAFAYETTE INDIANA TO 50 MILES SOUTH SOUTHEAST OF CAPE GIRARDEAU
MISSOURI.  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 39...WW 40...WW 41...WW
42...WW 43...WW 44...WW 45...WW 46...WW 47...WW 48...WW 49...

DISCUSSION...NUMEROUS STRONG TO SEVERE THUNDERSTORMS OVER MO AND
WESTERN IL WILL TRACK EASTWARD ACROSS THE WATCH AREA THIS EVENING. 
STRENGTHENING LOW LEVEL WINDS AND SUFFICIENT INSTABILITY WILL POSE A
RISK OF SUPERCELLS CAPABLE OF DAMAGING WINDS...LARGE HAIL..AND A FEW
TORNADOES.

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 25035.


...HART

Tornado Watches in Indiana, 2015Tornado Watches in Illinois, 2015Tornado Watches in Kentucky, 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.