[LeArc] Special Weather Statement : MLI@ 7/21/02 5:10:10 AM

[learc@mailman.qth.net]

The following weather message is provided by McDonough County E.S.D.A.


WWUS35 KMLI 211009
SPSMLI
IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-009-
015>018-024>026-034-035-MOZ009-010-221000-

SIGNIFICANT WEATHER OUTLOOK
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
509 AM CDT SUN JUL 21 2002

...DANGEROUS HEAT WITH STORMS TONIGHT AND MONDAY...

SOUTHWEST FLOW WILL BRING VERY HOT AND HUMID CONDITIONS INTO THE REGION
TODAY. TEMPERATURES IN THE MID TO UPPER 90S WITH DEW POINTS IN THE LOW
TO MID 70S WILL PUSH HEAT INDICES INTO THE 105 TO 115 DEGREE RANGE...OR
HIGHER. A STRONG CAP ALOFT WILL PREVENT THUNDERSTORM DEVELOPMENT THIS
AFTERNOON OR EVENING.

A STRONG COLD FRONT IS FORECAST TO COLLIDE WITH THE EXTREME HEAT AND
HUMIDITY...AND MOVE THROUGH THE AREA LATE TONIGHT AND MONDAY. A
FAVORABLE UPPER JET POSITION AND LOW LEVEL JET WILL ALLOW SEVERE
THUNDERSTORMS TO DEVELOP.

CURRENT INFORMATION SUGGESTS THAT A SQUALL LINE SHOULD DEVELOP ALONG OR
JUST AHEAD OF THE FRONT...WITH VERY HIGH WINDS...HAIL...AND HEAVY RAIN
THE MAIN THREATS. THIS SITUATION MUST BE MONITORED VERY CLOSELY...AS
THERE IS A POTENTIAL THAT VERY SEVERE THUNDERSTORMS COULD DEVELOP WITH
WINDS IN EXCESS OF 80 MPH. THE MOST LIKELY TIME PERIOD FOR SEVERE
WEATHER WOULD BE FROM 2 AM TO 9 AM MONDAY.

IN ADDITION TO THE SEVERE WEATHER THREAT...LOCALLY HEAVY RAINFALL IS
ALSO POSSIBLE...WHICH MAY RESULT IN FLOODING.

EMERGENCY MANAGERS ARE STRONGLY URGED TO LISTEN TO LATER FORECASTS
REGARDING THE STORM AND HEAVY RAIN THREAT LATE TONIGHT AND MONDAY.
SPOTTER ACTIVATION IS LIKELY LATE TONIGHT INTO MONDAY MORNING.

$$
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