Tornado Watch 528

Issued

Jun 20, 2011, 8:32 PM CDT (01:32 UTC)

Expired

Jun 21, 2011, 12:46 AM CDT

In force

4 hr

Issued by

the Storm Prediction Center

Largest hail expected

2 in

Strongest gust expected

70 kt

The Pleasant Hill radar (KEAX), 67 km from the middle of the area, began a volume at 01:36 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

40%

Ten or more severe wind reports

95%

One or more gusts of 65 knots or more

50%

Ten or more severe hail reports

95%

One or more hailstones of 2 inches or more

30%

Six or more combined severe hail and wind reports

95%

• Mesoscale Discussion 1329Jun 20, 6:17 PM CDT
• Mesoscale Discussion 1331Jun 20, 7:46 PM CDT
• Mesoscale Discussion 1334Jun 20, 10:22 PM CDT

042 
WWUS20 KWNS 210135
SEL8  
SPC WW 210135
KSZ000-MOZ000-210800-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 528
NWS STORM PREDICTION CENTER NORMAN OK
835 PM CDT MON JUN 20 2011

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

       EASTERN KANSAS
       WESTERN AND NORTHERN MISSOURI

EFFECTIVE THIS MONDAY NIGHT AND TUESDAY MORNING FROM 835 PM UNTIL
300 AM CDT.

TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 85 STATUTE
MILES EAST AND WEST OF A LINE FROM 55 MILES NORTH NORTHWEST OF
CHILLICOTHE MISSOURI TO 45 MILES SOUTH OF CHANUTE KANSAS.  FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU8).

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...THIS TORNADO WATCH REPLACES TORNADO
WATCH NUMBER 524. WATCH NUMBER 524 WILL NOT BE IN EFFECT AFTER
835 PM CDT. CONTINUE...WW 525...WW 526...WW 527...

DISCUSSION...BROKEN SQLN/QLCS IN ERN KS EXPECTED TO ACCELERATE ENE
THROUGH LATE EVE AS 50 KT 700 MB SPEED MAX ASSOCIATED WITH CNTRL KS
UPR VORT PIVOTS NEWD INTO LOW LVL MOIST AXIS.  INCREASING LOW TO MID
LVL SHEAR ASSOCIATED WITH THAT FEATURE...AND NOCTURNAL STRENGTHENING
OF SSWLY LLJ...SUGGEST POTENTIAL FOR EMBEDDED LOW LVL CIRCULATIONS
AND POSSIBLE TORNADOES...IN ADDITION TO HIGH WIND AND SVR
HAIL...DESPITE LARGELY UNIDIRECTIONAL DEEP WIND PROFILES.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
550. MEAN STORM MOTION VECTOR 22040.


...CORFIDI

Tornado Watches in Missouri, 2011Tornado Watches in Kansas, 2011Every tornado watch in 2011

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.