Tornado Watch 52

Issued

Apr 10, 2015, 1:37 AM EDT (05:37 UTC)

Expired

Apr 10, 2015, 6:36 AM EDT

In force

5 hr

Issued by

the Storm Prediction Center

Largest hail expected

1.5 in

Strongest gust expected

60 kt

The Louisville radar (KLVX), 42 km from the middle of the area, began a volume at 05:38 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

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

10%

Six or more combined severe hail and wind reports

60%

• Mesoscale Discussion 269Apr 9, 11:56 PM EDT
• Mesoscale Discussion 274Apr 10, 3:32 AM EDT

534 
WWUS20 KWNS 100538
SEL2  
SPC WW 100538
INZ000-KYZ000-OHZ000-101200-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 52
NWS STORM PREDICTION CENTER NORMAN OK
140 AM EDT FRI APR 10 2015

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* TORNADO WATCH FOR PORTIONS OF 
  SOUTHEAST INDIANA
  CENTRAL AND NORTHERN KENTUCKY
  SOUTHWEST OHIO

* EFFECTIVE THIS FRIDAY MORNING FROM 140 AM UNTIL 800 AM EDT.

* PRIMARY THREATS INCLUDE...
  A COUPLE TORNADOES POSSIBLE
  ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE
  ISOLATED LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 60 STATUTE
MILES EAST AND WEST OF A LINE FROM 70 MILES SOUTH SOUTHWEST OF
LOUISVILLE KENTUCKY TO 55 MILES NORTH OF CINCINNATI OHIO.  FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU2).

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 50...WW 51...

DISCUSSION...STRONG TO SEVERE THUNDERSTORMS WILL RAPIDLY SPREAD EAST
ACROSS THE WATCH AREA EARLY THIS MORNING WITH A RISK FOR PRIMARILY
DAMAGING WIND GUSTS AND PERHAPS A TORNADO OR TWO.

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
450. MEAN STORM MOTION VECTOR 24040.


...MEAD

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