Tornado Watch 866

Issued

Nov 15, 2005, 10:13 AM CST (16:13 UTC)

Expired

Nov 15, 2005, 5:00 PM CST

In force

7 hr

Issued by

the Storm Prediction Center

The Lincoln radar (KILX), 110 km from the middle of the area, began a volume at 16:32 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 2425Nov 15, 8:31 AM CST
• Mesoscale Discussion 2427Nov 15, 10:13 AM CST
• Mesoscale Discussion 2429Nov 15, 12:34 PM CST
• Mesoscale Discussion 2431Nov 15, 1:32 PM CST

000 
WWUS20 KWNS 151611
SEL6  
SPC WW 151611
ILZ000-INZ000-MOZ000-152300-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 866
NWS STORM PREDICTION CENTER NORMAN OK
1010 AM CST TUE NOV 15 2005

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

       CENTRAL AND SOUTHERN ILLINOIS
       WESTERN INDIANA
       EAST CENTRAL MISSOURI

EFFECTIVE THIS TUESDAY MORNING AND AFTERNOON FROM 1010 AM UNTIL
500 PM CST.

...THIS IS A PARTICULARLY DANGEROUS SITUATION...

DESTRUCTIVE TORNADOES...LARGE HAIL TO 1.5 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 100 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 55 MILES WEST OF SAINT LOUIS
MISSOURI TO 10 MILES SOUTHEAST OF BLOOMINGTON INDIANA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU6).

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 864...WW 865...

DISCUSSION...DEEPENING SURFACE LOW OVER SOUTHWEST MO IS FORECAST TO
TRACK RAPIDLY NORTHEASTWARD TODAY INTO IL.  AIR MASS AHEAD OF LOW IS
EXPECTED TO DESTABILIZE RAPIDLY...WITH WARM/MOIST AND UNSTABLE
SURFACE AIR SPREADING NORTHWARD ACROSS THE WATCH AREA. VERTICAL
SHEAR PROFILES WILL BE VERY FAVORABLE FOR SUPERCELLS AND THE
POTENTIAL FOR STRONG TORNADOES.  DAMAGING WINDS ALSO APPEAR TO BE A
SIGNIFICANT THREAT.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 24040.


...HART

401,0912 402,0862 373,0862 371,0912

Tornado Watches in Illinois, 2005Tornado Watches in Indiana, 2005Tornado Watches in Missouri, 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.