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3 products issued by NWS for: Macomb IL
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Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Quad Cities IA IL
412 PM CDT Wed Jul 26 2017

IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-271000-
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-
412 PM CDT Wed Jul 26 2017

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...LATE THIS AFTERNOON AND TONIGHT

Scattered thunderstorms will continue to move east over the
outlook area this afternoon and tonight. A few of the storms may
be severe through this evening, with the primary threats being
damaging winds. Localized heavy rain also possible, eventually
leading to a risk of flash flooding in areas that get hit
repeatedly by passing storms.

A flash flood watch remains in effect for late this afternoon and
tonight generally along and south of Interstate 80 where the
greatest risk for widespread heavy rain and flash flooding is
currently anticipated. North of Interstate 80, just isolated
storms producing very localized heavy rain are expected.

Very warm and humid conditions will continue into early evening
south of Interstate 80, with heat index readings topping out in
the upper 90s to near 100 degrees.

Some area rivers are experiencing flooding. Please see the latest
Flood Statements and Flood Warnings for details.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

There is a chance of non-severe thunderstorms on Thursday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed over portions of the outlook area
this afternoon and tonight. Spotters are urged to report any
hail, winds over 40 mph and weather related damage, and rainfall
amounts over 1 inch and any flooding.

$$

12



Special Weather Statement

Special Weather Statement
National Weather Service Quad Cities IA IL
330 PM CDT Wed Jul 26 2017

IAZ078-087>089-098-099-ILZ024>026-034-035-MOZ009-010-270100-
Louisa-Jefferson-Henry IA-Des Moines-Van Buren-Lee-Mercer-
Henderson-Warren-Hancock-McDonough-Scotland-Clark-
Including the cities of Wapello, Fairfield, Mount Pleasant,
Burlington, Keosauqua, Fort Madison, Aledo, Oquawka, Monmouth,
Carthage, Macomb, Memphis, and Kahoka
330 PM CDT Wed Jul 26 2017

...Very Humid into this Evening...

High temperatures in the mid to upper 80s combined with dewpoints
in the middle to upper 70s, will lead to peak heat indices
between 95 and 100 degrees into the early evening hours. Showers
and thunderstorms along with an approaching front will bring
relief later this evening and into tonight.

If spending time outside this afternoon and evening, be sure to
drink plenty of water and take breaks in the shade. Also, never
leave a child or pet unattended in a vehicle.

$$

12



Flash Flood Watch

Flood Watch
National Weather Service Quad Cities IA IL
320 PM CDT Wed Jul 26 2017

...Heavy rain threat appears to be shifting south...

.A storm system will continue to move through the Midwest this
afternoon and tonight with a very warm and moist airmass. The high
moisture levels means that storms will be capable of producing
heavy rain. High rainfall rates from storms combined with storms
moving over the same areas could result in flash flooding across
portions of the watch area. Although an isolated storm may still
produce locally heavy rain north of I-80 this afternoon and
evening, the widespread threat of heavy rain and flash flooding is
shifting to along and south of the Interstate.

IAZ067-068-076>078-087>089-098-099-ILZ015-016-024>026-034-035-
MOZ009-010-270430-
/O.CON.KDVN.FF.A.0005.170726T2100Z-170727T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Muscatine-Scott-Keokuk-Washington-Louisa-Jefferson-Henry IA-
Des Moines-Van Buren-Lee-Rock Island-Henry IL-Mercer-Henderson-
Warren-Hancock-McDonough-Scotland-Clark-
Including the cities of Muscatine, Davenport, Bettendorf,
Sigourney, Washington, Wapello, Fairfield, Mount Pleasant,
Burlington, Keosauqua, Fort Madison, Moline, Rock Island,
Geneseo, Aledo, Oquawka, Monmouth, Carthage, Macomb, Memphis,
and Kahoka
320 PM CDT Wed Jul 26 2017

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THURSDAY MORNING...

The Flash Flood Watch continues for

* Portions of Illinois, Iowa, and northeast Missouri, including
  the following areas, in Illinois, Hancock, Henderson, Henry
  IL, McDonough, Mercer, Rock Island, and Warren. In Iowa, Des
  Moines, Henry IA, Jefferson, Keokuk, Lee, Louisa, Muscatine,
  Scott, Van Buren, and Washington. In northeast Missouri, Clark
  and Scotland.

* Through Thursday morning

* Storms will be capable of high rainfall rates due to high
  moisture levels in the atmosphere.

* The area of greatest risk is south of a line from Sigourney,
  Iowa to Monmouth, Illinois. Here storms may move over the same
  areas later tonight and produce 1 to 3 inches of rain in a
  short time period.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that flash flooding is possible.
Monitor forecasts and take action if flash flood warnings are
issued or flash flooding develops.

&&

$$

12




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