Tornado Watch 222

Issued

May 1, 2012, 6:31 PM EDT (22:31 UTC)

Expired

May 1, 2012, 11:54 PM EDT

In force

5 hr

Issued by

the Storm Prediction Center

Largest hail expected

1.5 in

Strongest gust expected

60 kt

The Cincinnati radar (KILN), 33 km from the middle of the area, began a volume at 22:34 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

40%

One or more EF2 to EF5 tornadoes

20%

Ten or more severe wind reports

60%

One or more gusts of 65 knots or more

10%

Ten or more severe hail reports

40%

One or more hailstones of 2 inches or more

10%

Six or more combined severe hail and wind reports

95%

• Mesoscale Discussion 645May 1, 2:44 PM EDT
• Mesoscale Discussion 649May 1, 6:13 PM EDT
• Mesoscale Discussion 655May 1, 9:33 PM EDT

497 
WWUS20 KWNS 012233
SEL2
SPC WW 012233
INZ000-KYZ000-OHZ000-WVZ000-020500-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 222
NWS STORM PREDICTION CENTER NORMAN OK
630 PM EDT TUE MAY 1 2012

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

       SOUTHEAST INDIANA
       NORTHERN KENTUCKY
       SOUTHERN AND CENTRAL OHIO
       WESTERN AND NORTHERN WEST VIRGINIA

EFFECTIVE THIS TUESDAY NIGHT AND WEDNESDAY MORNING FROM 630 PM
UNTIL 100 AM EDT.

TORNADOES...HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 125 STATUTE
MILES EAST AND WEST OF A LINE FROM 15 MILES NORTHEAST OF COLUMBUS
OHIO TO 45 MILES WEST OF HUNTINGTON WEST VIRGINIA.  FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU2).

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 217...WW 218...WW
219...WW 220...WW 221...

DISCUSSION...ENVIRONMENT EXPECTED TO REMAIN FAVORABLE FOR
SEMI-DISCRETE SUSTAINED STORMS/SUPERCELLS OVER PARTS OF THE OH VLY
DOWNSTREAM FROM ERN IL MCV.  ACTIVITY MAY BE MOST CONCENTRATED ALONG
AND S OF W-E WARM/STNRY FRONT ORIENTED ROUGHLY ALONG OR JUST S OF
INTERSTATE ROUTE 70.  IN ADDITION TO ISOLD TORNADOES...SETUP MAY
YIELD LOCALLY DMGG WIND AND MARGINALLY SVR HAIL AS 40-50 KT 700-500
MB WLY WIND MAX ASSOCIATED WITH THE MCV CONTINUES EAST INTO OH/NRN
WV.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 27030.


...CORFIDI

Tornado Watches in Ohio, 2012Tornado Watches in West Virginia, 2012Tornado Watches in Kentucky, 2012Every tornado watch in 2012

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.