Tornado Watch 841

Issued

Nov 5, 2005, 3:50 PM CST (21:50 UTC)

Expired

Nov 5, 2005, 9:29 PM CST

In force

6 hr

Issued by

the Storm Prediction Center

The St Louis radar (KLSX), 112 km from the middle of the area, began a volume at 21:50 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 2373Nov 5, 12:21 PM CST
• Mesoscale Discussion 2374Nov 5, 3:19 PM CST
• Mesoscale Discussion 2376Nov 5, 6:36 PM CST
• Mesoscale Discussion 2378Nov 5, 8:53 PM CST

000 
WWUS20 KWNS 052154
SEL1  
SPC WW 052154
ILZ000-MOZ000-060400-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 841
NWS STORM PREDICTION CENTER NORMAN OK
350 PM CST SAT NOV 5 2005

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

       WESTERN AND PART OF CENTRAL ILLINOIS
       CENTRAL AND EASTERN MISSOURI

EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 350 PM UNTIL
1000 PM CST.

TORNADOES...HAIL TO 2 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 85 STATUTE MILES
EAST AND WEST OF A LINE FROM 30 MILES SOUTHWEST OF VICHY MISSOURI
TO 55 MILES NORTH NORTHEAST OF QUINCY ILLINOIS.  FOR A COMPLETE
DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE
(WOUS64 KWNS WOU1).

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.

DISCUSSION...POTENT SHORTWAVE TROUGH NOW MOVING ACROSS KS WILL
LIKELY SUPPORT INCREASED SEVERE THUNDERSTORMS OVER WW THIS EVENING
AS AIR MASS REMAINS MARGINAL TO MODERATELY UNSTABLE.  INITIATION
WILL LIKELY OCCUR NEAR LOW CENTER EXPECTED TO DEEPEN INTO NERN MO
THIS EVENING AND NEAR EWD MOVING SURFACE COLD FRONT.  PRIMARY SEVERE
THREATS WILL BE DAMAGING WINDS AND LARGE HAIL AS STORMS EVOLVE INTO
A SQUALL LINE. HOWEVER...SIGNIFICANT SHEAR AND BACKED SURFACE WINDS
NEAR THE LOW CENTER WILL ALSO SUPPORT A THREAT OF A FEW TORNADOES
WITH ANY SUPERCELLS/LEWP STRUCTURES.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500.
MEAN STORM MOTION VECTOR 25035.


...EVANS

374,0934 404,0922 404,0891 374,0903

Tornado Watches in Missouri, 2005Tornado Watches in Illinois, 2005Tornado Watches in Iowa, 2005Every tornado watch in 2005

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.