Severe Thunderstorm Watch 310

Issued

May 27, 2004, 2:25 PM CDT (19:25 UTC)

Expired

May 27, 2004, 9:00 PM CDT

In force

7 hr

Issued by

the Storm Prediction Center

The Pleasant Hill radar (KEAX), 158 km from the middle of the area, began a volume at 19:29 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.

• Mesoscale Discussion 940May 27, 11:10 AM CDT
• Mesoscale Discussion 942May 27, 1:52 PM CDT
• Mesoscale Discussion 946May 27, 3:37 PM CDT
• Mesoscale Discussion 949May 27, 5:01 PM CDT
• Mesoscale Discussion 955May 27, 7:12 PM CDT

000 
WWUS20 KWNS 271925
SEL0  
SPC WW 271925
ILZ000-KSZ000-MOZ000-280200-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 310
NWS STORM PREDICTION CENTER NORMAN OK
225 PM CDT THU MAY 27 2004

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

       WEST CENTRAL ILLINOIS
       FAR NORTHEAST KANSAS
       CENTRAL MISSOURI

EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 225 PM UNTIL
900 PM CDT.

HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 50 STATUTE MILES
NORTH AND SOUTH OF A LINE FROM 15 MILES SOUTH SOUTHWEST OF SAINT
JOSEPH MISSOURI TO 5 MILES NORTHEAST OF SALEM ILLINOIS.

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR 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. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES.

OTHER WATCH INFORMATION...CONTINUE...WW 308...WW 309...

DISCUSSION...SUPERCELLS ARE MOVING SEWD OUT OF FAR SERN NEB AND
N-CENTRAL MO ATTM...WHILE E-W ORIENTED SURFACE FRONT NEAR THE I-70
CORRIDOR IS SHOWING INCREASING SIGNS FOR DEEPENING CONVECTION. 
ENTIRE REGION IS BECOMING VERY UNSTABLE AND WEAKLY CAPPED...AND
FURTHER DEVELOPMENT OF SEVERE THUNDERSTORMS IS EXPECTED.  THOUGH
DEEP LAYER SHEAR IS SUPPORTIVE OF DISCRETE SUPERCELLS...LOW LEVEL
SHEAR/HELICITY REMAINS WEAK SUGGESTING PRIMARY THREATS WILL BE VERY
LARGE HAIL AND DAMAGING WINDS. DAMAGING WIND THREAT WOULD INCREASE
LATER TODAY IF STORMS CAN CONGEAL ALONG A COMMON OUTFLOW.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 29025.


...EVANS

401,0950 392,0885 375,0885 385,0950

Severe Thunderstorm Watches in Missouri, 2004Severe Thunderstorm Watches in Illinois, 2004Severe Thunderstorm Watches in Kansas, 2004Every severe thunderstorm watch in 2004

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.