Tornado Watch 799

Issued

Oct 24, 2001, 4:15 PM EDT (20:15 UTC)

Expired

Oct 24, 2001, 10:00 PM EDT

In force

6 hr

Issued by

the Storm Prediction Center

The Grand Rapids radar (KGRR), 36 km from the middle of the area, began a volume at 20:16 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.

871 
WWUS9 KMKC 241944
SEL9  

SEL9  
MKC WW 241938
MIZ000-LMZ000-LHZ000-250200-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 799
STORM PREDICTION CENTER NORMAN OK
338 PM EDT WED OCT 24 2001

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

   CENTRAL AND SOUTHERN LOWER MICHIGAN                           
   SOUTHEAST LAKE MICHIGAN                      
   SOUTHERN LAKE HURON                         

EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 415 PM UNTIL
1000 PM EDT.

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 ALONG AND 110 STATUTE MILES EAST AND WEST
OF A LINE FROM 40 MILES SOUTH SOUTHEAST OF KALAMAZOO MICHIGAN TO 35
MILES NORTH NORTHWEST OF SAGINAW MICHIGAN.

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 797...WW 798...

DISCUSSION...THUNDERSTORMS ARE INCREASING ALONG THE COLD FRONT
CROSSING LKAE MICHIGAN...AND OTHER STRONG/SEVERE STORMS ARE
EXPECTED TO MOVE FROM NWRN INDIANA INTO SWRN LOWER MI BY 21-22Z. 
VAD WIND PROFILE FROM KGRR SHOWS STRONG VEERING WITH HEIGHT
INDICATING POTENTIAL FOR SUPERCELL STORMS TO DEVELOP WITH UNSTABLE
AIR MASS.


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 450. 
MEAN STORM MOTION VECTOR 23035.


...WEISS

414,0872 435,0863 435,0820 414,0830

Tornado Watches in Michigan, 2001Every tornado watch in 2001

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.