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Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Quad Cities IA IL
418 AM CDT Tue Aug 20 2019

IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-210930-
Buchanan-Delaware-Dubuque-Benton-Linn-Jones-Jackson-Iowa-Johnson-
Cedar-Clinton-Muscatine-Scott-Keokuk-Washington-Louisa-Jefferson-
Henry IA-Des Moines-Van Buren-Lee-Jo Daviess-Stephenson-Carroll-
Whiteside-Rock Island-Henry IL-Bureau-Putnam-Mercer-Henderson-
Warren-Hancock-McDonough-Scotland-Clark-
418 AM CDT Tue Aug 20 2019

This Hazardous Weather Outlook is for portions of north central
Illinois...northwest Illinois...west central Illinois...east
central Iowa...northeast Iowa...southeast Iowa and northeast
Missouri.

.DAY ONE...TODAY AND TONIGHT

There is an Enhanced risk for severe thunderstorms this morning
in the counties along and south of Interstate 80 and a slight risk
further north. The main threat is damaging winds as a fast moving
squall line crosses through parts of the outlook area. The
strongest cells within the line could produce gusts up to 70 mph.
Torrential rainfall rates could lead to ponding of water on
roadways and very low visibilities. There is a low threat for an
isolated spin up tornado and large hail.

For timing, the line of storms should reach the western counties
between 6 to 9 AM, along the Mississippi River corridor between 7
to 10 AM, and into the southeast counties between 8 to 11 AM.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

An active weather pattern is forecast through the long term period
with chances of showers and thunderstorms Wednesday and Thursday
and again Sunday through Tuesday. There is still some uncertainty
on Wednesday but there is the potential for at least isolated
severe thunderstorms in far southeastern Iowa, northeast Missouri
and west central Illinois during the day. Severe thunderstorms are
not anticipated on Thursday.

It is still too early to determine the severe thunderstorm threat
for Sunday through Monday.

.SPOTTER INFORMATION STATEMENT...

Spotter and amateur radio activation will be needed this morning.

$$

Uttech/Cousins



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