Tornado Watch 344

Issued

Jun 1, 2001, 1:30 PM CDT (18:30 UTC)

Expired

Jun 1, 2001, 7:00 PM CDT

In force

6 hr

Issued by

the Storm Prediction Center

The Des Moines radar (KDMX), 56 km from the middle of the area, began a volume at 18:29 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.

000 
WWUS9 KMKC 011806
SEL4  

SEL4  
MKC WW 011801
IAZ000-020000-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 344
STORM PREDICTION CENTER NORMAN OK
101 PM CDT FRI JUN 1 2001

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

   IOWA                               

EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 130 PM UNTIL 700
PM CDT.

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 65 STATUTE MILES EITHER SIDE OF
A LINE FROM 110 MILES WEST OF DES MOINES IOWA TO 70 MILES EAST
NORTHEAST OF WATERLOO IOWA.

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 343...

DISCUSSION...VIGOROUS TROUGH AND STRONG MID LEVEL JET DIGGING SEWD
ACROSS IA.  AIRMASS BECOMING INCREASINGLY UNSTABLE AS MOISTURE
MOVES NEWD ON SWLY WIND.  THUNDERSTORMS WILL DEVELOP RAPIDLY  ALONG
FRONT MOVING ACROSS NRN IA.  VERY FAVORABLE SHEAR PROFILES IN PLACE
FOR SUPERCELLS WHICH WILL ENHANCE LARGE HAIL AND TORNADO THREAT.


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 29040.


...HALES

;420,0904 403,0952 422,0961 434,0913;

Tornado Watches in Iowa, 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.