Sunday, July 14, 2019

Hazardous Weather Outlook for McHenry Co., IL

<pre>FLUS43 KLOT 141943
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
243 PM CDT Sun Jul 14 2019


Winnebago-Boone-McHenry-Lake-Ogle-Lee-De Kalb-Kane-DuPage-Cook-
La Salle-Kendall-Grundy-Will-Kankakee-Livingston-Iroquois-Ford-
Porter-Newton-Jasper-Benton-
243 PM CDT Sun Jul 14 2019 /343 PM EDT Sun Jul 14 2019/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...Tonight.

Weather hazards expected...

Limited Thunderstorm Risk.
Limited Flooding Risk.
Limited Excessive heat Risk.

DISCUSSION...

A broken line of thunderstorms are developing along an old cold
front extending from near Dixon, through Mazon to Rensselaer. The
line of storms is expected to fill in and slowly move north with
the front, possibly reaching the southern portions of the
Rockford and Chicago Metro areas this evening. Although the
severe threat remains low at this time, a few stronger storms or
an isolated severe storm or two are possible. The main threats are
heavy rainfall with localized flooding, strong/gusty winds and
frequent lightning.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Monday...
Limited Thunderstorm Risk.
Limited Excessive Heat Risk.
Tuesday...
Limited Flooding Risk.
Limited Thunderstorm Risk.
Wednesday...
Limited Thunderstorm Risk.
Limited Excessive Heat Risk.
Thursday...
Limited Thunderstorm Risk.
Significant Excessive Heat Risk.
Friday and Saturday...
Limited Thunderstorm Risk.
Elevated Excessive Heat Risk.

DISCUSSION:

Heat indices in the mid to upper 90s are expected Monday through
Wednesday. Heat indices may climb in excess of 105 degrees on
Thursday and Friday. Overnight low temperatures all next week
will also be oppressive, bringing little relief from the heat and
humidity.

An active weather pattern with periodic chances for thunderstorms
will continue for the next several days.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.

GENERAL STORM MOTION OF THE DAY:

Moving toward the east at 10 mph.
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