[LeArc] Special Weather Statement : MLI@ 5/11/02 5:09:21 AM

[learc@mailman.qth.net]

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


WWUS35 KMLI 111009
SPSMLI
IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-009-
015>018-024>026-034-035-MOZ009-010-121000-

SIGNIFICANT WEATHER OUTLOOK
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
509 AM CDT SAT MAY 11 2002

...HEAVY RAIN TODAY AND TONIGHT WITH POSSIBLE SEVERE...

A STORM SYSTEM IN THE CENTRAL PLAINS WILL MOVE NORTHEAST AND AFFECT THE
REGION TODAY THROUGH SUNDAY. A STRONG LOW LEVEL JET IS PULLING MOISTURE
NORTH FROM THE GULF OF MEXICO...AND COLLIDING WITH A WARM FRONT MOVING
NORTH FROM THE SOUTHERN PLAINS.

THE ISENTROPIC LIFT OVER THE WARM FRONT WILL CAUSE WIDESPREAD HEAVY RAIN
TODAY AND TONIGHT.  LOW PRESSURE MOVING ALONG THE FRONT SHOULD PUSH
THE WARM FRONT TO THE INTERSTATE 80 CORRIDOR TONIGHT. DUE TO VERY STRONG
FORCING...A FEW THUNDERSTORMS ARE EXPECTED TO DEVELOP ALONG AND SOUTH OF
THE FRONT INCREASING THE POTENTIAL FOR HEAVY RAIN.

GENERAL RAINFALL OF 1.5 TO 2.5 INCHES SHOULD OCCUR BY SUNDAY EVENING...
WITH LOCAL AMOUNTS OF 3 TO 5 INCHES POSSIBLE. THE MOST LIKELY AREA FOR
THE HEAVIEST RAIN IS SOUTH OF A LINE FROM OTTUMWA IOWA TO WALNUT
ILLINOIS...WHERE A FLOOD WATCH IS IN EFFECT.

CONSIDERABLE SHEAR IS ALSO FORECAST TO BE PRESENT TODAY AND TONIGHT NEAR
THE WARM FRONT. THIS SHEAR COMBINED WITH THE ADDITIONAL LIFT FROM THE
APPROACHING LOW...SHOULD BRING A CHANCE OF SEVERE WEATHER. THE AREA MOST
LIKELY TO SEE SEVERE WEATHER IS SOUTH OF INTERSTATE 80...WITH AREAS
ALONG AND SOUTH OF HIGHWAY 34 HAVING THE HIGHEST THREAT. THE PRIMARY
THREAT APPEARS TO BE HAIL AND DAMAGING WINDS...WITH THE MOSTLY LIKELY
TIME BEING SATURDAY EVENING.

THIS PROLONGED RAIN EVENT WILL CAUSE SIGNIFICANT RISES ON THE SMALLER
RIVERS AND CREEKS.  RIVERS THAT SHOULD BE WATCHED FOR POTENTIAL
FLOODING ARE THE LOWER PARTS OF THE DES MOINES AND SKUNK...FOX...LA
MOINE...AND EDWARDS. A FEW CREEKS ARE POPE...AND HENDERSON.

EMERGENCY MANAGERS...HIGHWAY DEPARTMENTS...AND SPOTTERS SHOULD PREPARE
FOR POTENTIAL FLOODING THIS WEEKEND...AND THE POSSIBLE SEVERE WEATHER
THREAT THIS EVENING.

$$
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