Tornado Watch 212

Issued

Apr 30, 2012, 5:42 PM CDT (22:42 UTC)

Expired

May 1, 2012, 12:49 AM CDT

In force

7 hr

Issued by

the Storm Prediction Center

Largest hail expected

3 in

Strongest gust expected

65 kt

The Dodge City radar (KDDC), 101 km from the middle of the area, began a volume at 22:43 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

60%

One or more EF2 to EF5 tornadoes

30%

Ten or more severe wind reports

40%

One or more gusts of 65 knots or more

30%

Ten or more severe hail reports

80%

One or more hailstones of 2 inches or more

60%

Six or more combined severe hail and wind reports

95%

• Mesoscale Discussion 633Apr 30, 2:58 PM CDT
• Mesoscale Discussion 635Apr 30, 5:19 PM CDT
• Mesoscale Discussion 637Apr 30, 6:55 PM CDT
• Mesoscale Discussion 639Apr 30, 8:55 PM CDT
• Mesoscale Discussion 641Apr 30, 11:28 PM CDT

012 
WWUS20 KWNS 302253
SEL2
SPC WW 302253
KSZ000-OKZ000-TXZ000-010700-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 212
NWS STORM PREDICTION CENTER NORMAN OK
545 PM CDT MON APR 30 2012

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

       SOUTHWEST KANSAS
       NORTHERN AND WESTERN OKLAHOMA
       THE EASTERN TEXAS PANHANDLE AND NORTHWEST TEXAS

EFFECTIVE THIS MONDAY AFTERNOON AND TUESDAY MORNING FROM 545 PM
UNTIL 200 AM CDT.

TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 75 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 65 STATUTE
MILES EAST AND WEST OF A LINE FROM 60 MILES NORTH NORTHEAST OF
DODGE CITY KANSAS TO 10 MILES SOUTH SOUTHWEST OF CHILDRESS TEXAS.
 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 208...WW 209...WW
210...WW 211...

DISCUSSION...WIND PROFILES INVOF TSTMS FORMING ALONG ARCED NW-SE
OUTFLOW BOUNDARY/WARM FRONTAL SEGMENT IN SW KS/NW OK APPEAR
FAVORABLE FOR LOW LVL MESOS/TORNADOES GIVEN RELATIVELY STEEP LOW LVL
LAPSE RATES/MOISTURE AVAILABILITY.  THESE STORMS SHOULD MOVE/DEVELOP
PREFERENTIALLY ESE TO SE ALONG BOUNDARY INTO OK...WHERE OTHER STORMS
MAY FORM IN THE NEXT SEVERAL HOURS.  TORNADO THREAT ALSO MAY
INCREASE A BIT LATER THIS EVE THROUGH MID/LATE EVE IN THE ERN TX
PANHANDLE/NW TX...AS LOW LVL SLY FLOW INCREASES IN RESPONSE TO
DIURNAL CYCLE AND TO CONTINUED EWD MOTION OF NM UPR IMPULSE/BELT OF
30-40 KT WLY 700 MB FLOW.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 65 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
600. MEAN STORM MOTION VECTOR 30020.


...CORFIDI

Tornado Watches in Kansas, 2012Tornado Watches in Oklahoma, 2012Tornado Watches in Texas, 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.