[LeArc] Special Weather Statement : MLI@ 8/22/02 5:53:51 AM

[learc@mailman.qth.net]

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


WWUS35 KMLI 221059
SPSMLI
IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-009-
015>018-024>026-034-035-MOZ009-010-231000-

SIGNIFICANT WEATHER OUTLOOK
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
558 AM CDT THU AUG 22 2002

...MORE THUNDERSTORMS THROUGH FRIDAY...

A SURFACE FRONT WILL SLOWLY MOVE SOUTH ACROSS THE AREA TODAY AND
TONIGHT...AND THEN BECOME STATIONARY OVER NORTHERN MISSOURI AND
CENTRAL ILLINOIS.  THIS FRONT WILL INTERACT WITH VERY MOIST...
UNSTABLE AIR ALONG AND SOUTH OF THE FRONT...SERVING AS THE FOCUS FOR
THE FORMATION OF SHOWERS AND THUNDERSTORMS.  THUNDERSTORMS ARE EXPECTED
ALONG THIS FRONT FOR MOST OF THURSDAY MORNING THROUGH FRIDAY NIGHT.

TODAY THE GREATEST THREAT FOR VERY HEAVY RAINFALL IS BETWEEN HIGHWAY
20 AND INTERSTATE 80...AS THUNDERSTORMS CONTINUALLY FORM AND MOVE OVER
THE SAME AREAS.  OF SPECIAL CONCERN TODAY IS LOCATIONS ALONG HIGHWAY
20...WHERE AS MUCH AS 8 INCHES FELL OVERNIGHT...WITH WIDESPREAD
AMOUNTS OF OVER 4 INCHES BETWEEN MANCHESTER IOWA...AND ROCKFORD
ILLINOIS.  PERSONS IN THESE LOCATIONS TODAY SHOULD STAY TUNED FOR LATER
STATEMENTS AND POSSIBLE FLOOD WARNINGS.

TONIGHT THE THREAT FOR HEAVY RAINFALL SHIFTS SOUTH...TO SOUTH OF HIGHWAY
30.  MANY LOCATIONS IN THIS AREA HAVE BEEN DRY SINCE EARLY IN THE
WEEK...AND MOST AREAS CAN LIKELY HANDLE 2 TO 4 INCHES OF RAIN WITH FEW
FLOODING PROBLEMS.  DUE TO UNCERTAINTY IN THE COMPUTER MODELS...IT IS
DIFFICULT TO SPECIFY WHERE THE BAND OF HEAVIEST RAINFALL WILL BE.  THIS
DEPENDS ON THE FRONTAL POSITION...AND WHERE NEW CONVECTION OCCURS TODAY.
DURING THE DAY TODAY...THESE FEATURES WILL BE MONITORED AND FURTHER
INFORMATION ABOUT THE HEAVY RAINFALL CAN BE EXPECTED.

MORE THUNDERSTORMS ARE EXPECTED FRIDAY AND FRIDAY NIGHT...BEFORE THIS
SYSTEM MOVES AWAY FROM THE AREA.

DUE TO THE HEAVY RAIN THAT HAS FALLEN...AND IS EXPECTED TO FALL OVER
THE NEXT 24 TO 36 HOURS...RIVER LEVELS WILL BE ON THE RISE.  FLOODING
FROM OVERFLOWING RIVERS WILL LIKELY BE A PROBLEM WELL INTO THE
WEEKEND.

STAY TUNED TO NOAA WEATHER RADIO...OR YOUR FAVORITE MEDIA SOURCE FOR
FURTHER STATEMENTS...POSSIBLE WARNINGS...AND INFORMATION ON THIS
HEAVY RAIN AND FLOODING SITUATION.

SPOTTER ACTIVATION MAY BE NEEDED TODAY AND TONIGHT FOR REPORTS ON
POSSIBLE FLOODING.

$$
LRE

WWWW