Tornado Watch 77

Issued

Mar 12, 2006, 8:42 PM CST (02:42 UTC)

Expired

Mar 13, 2006, 4:00 AM CST

In force

7 hr

Issued by

the Storm Prediction Center

The Lincoln radar (KILX), 108 km from the middle of the area, began a volume at 02:42 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 264 Tornado watch 73Mar 12, 5:06 PM CST
• Mesoscale Discussion 267Mar 12, 6:28 PM CST
• Mesoscale Discussion 268Mar 12, 7:15 PM CST
• Mesoscale Discussion 269Mar 12, 8:00 PM CST
• Mesoscale Discussion 271Mar 12, 9:13 PM CST
• Mesoscale Discussion 273Mar 12, 11:30 PM CST
• Mesoscale Discussion 274Mar 12, 11:52 PM CST
• Mesoscale Discussion 275Mar 13, 12:35 AM CST
• Mesoscale Discussion 276Mar 13, 1:47 AM CST
• Mesoscale Discussion 279Mar 13, 3:19 AM CST

000 
WWUS20 KWNS 130241
SEL7  
SPC WW 130241
IAZ000-ILZ000-INZ000-KSZ000-MOZ000-WIZ000-LMZ000-131000-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 77
NWS STORM PREDICTION CENTER NORMAN OK
840 PM CST SUN MAR 12 2006

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

       SOUTHEAST IOWA
       NORTHERN AND CENTRAL ILLINOIS
       NORTHWEST INDIANA
       EXTREME EASTERN KANSAS
       MUCH OF MISSOURI
       SOUTHEAST WISCONSIN
       LAKE MICHIGAN

EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 840 PM UNTIL
400 AM CST.

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

DESTRUCTIVE TORNADOES...LARGE HAIL TO 3 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 110 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 50 MILES EAST SOUTHEAST OF
MARSEILLES ILLINOIS TO 45 MILES NORTH NORTHWEST OF JOPLIN
MISSOURI.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU7).

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 73...TORNADO WATCH NUMBER 75. WATCH NUMBER 73 75 WILL
NOT BE IN EFFECT AFTER 840 PM CST. CONTINUE...WW 74...WW 76...

DISCUSSION...WIDESPREAD SEVERE STORMS ARE AFFECTING PARTS OF
WESTERN/CENTRAL MO TONIGHT...AS WELL AS PARTS OF NORTHERN AND
CENTRAL IL.  THESE AREAS WILL CONTINUE TO BE AFFECTED BY SUPERCELL
STORMS CAPABLE OF VERY LARGE HAIL...DAMAGING WINDS...AND STRONG
TORNADOES.  THREAT WILL LIKELY PERSIST MUCH OF THE NIGHT AS LOW
LEVEL JET BECOMES VERY STRONG AND UPPER SYSTEM APPROACHES.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500.
MEAN STORM MOTION VECTOR 25040.


...HART

Tornado Watches in Missouri, 2006Tornado Watches in Illinois, 2006Tornado Watches in Iowa, 2006Every tornado watch in 2006

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.