Thursday, June 4, 2020

Hazardous Weather Outlook for McHenry Co., IL

<pre>FLUS43 KLOT 041744
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1244 PM CDT Thu Jun 4 2020


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
1244 PM CDT Thu Jun 4 2020 /144 PM EDT Thu Jun 4 2020/

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

.DAY ONE...This Afternoon and Tonight.

Weather hazards expected...

Limited Thunderstorm Risk.

DISCUSSION...

Isolated showers and thunderstorms will form in the vicinity of a
lake breeze advancing inland through mid afternoon. The thunderstorms
should dissipate during the 500 PM to 600 PM CDT hour. The main
thunderstorm threats are occasional cloud to ground lightning and
heavy downpours. While severe weather is not expected, if any
stronger thunderstorm can form, brief gusty winds will be possible.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Friday...
Limited Thunderstorm Risk.
Saturday...
High Swim Risk.
Tuesday and Wednesday...
Limited Thunderstorm Risk.

DISCUSSION:

Widely scattered thunderstorms are possible on Friday. Due to
moderate to potentially strong instability, there may be a
few strong to severe storms.

Northeast winds on Saturday may result in high waves and
dangerous swimming conditions on Lake Michigan beaches.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.

GENERAL STORM MOTION OF THE DAY:

Moving toward the east southeast at 15 mph.
</pre>


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Hazardous Weather Outlook for McHenry Co., IL

<pre>FLUS43 KLOT 040845
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
345 AM CDT Thu Jun 4 2020


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
345 AM CDT Thu Jun 4 2020 /445 AM EDT Thu Jun 4 2020/

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

.DAY ONE...Today and Tonight.

Weather hazards expected...

Limited Thunderstorm Risk.

DISCUSSION...

Spotty non-severe thunderstorms are possible today. Also
there is a chance for storms to move into north central
Illinois late tonight. Severe weather is generally not
anticipated.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Friday...
Limited Thunderstorm Risk.
Saturday...
High Swim Risk.
Tuesday-Wednesday...
Limited Thunderstorm Risk.

DISCUSSION:

Widely scattered thunderstorms are possible on Friday. Due to
moderate to potentially strong instability, there may be a
few strong to severe storms.

Northeast winds on Saturday may result in high waves and
dangerous swimming conditions on Lake Michigan beaches.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.

GENERAL STORM MOTION OF THE DAY:

Moving toward the east at 20 mph.
</pre>


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Wednesday, June 3, 2020

Hazardous Weather Outlook for McHenry Co., IL

<pre>FLUS43 KLOT 032047
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
347 PM CDT Wed Jun 3 2020


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
347 PM CDT Wed Jun 3 2020 /447 PM EDT Wed Jun 3 2020/

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 south of I-80...with an associated:
Limited hail risk...up to quarter size.
Limited damaging wind risk...up to 60 mph.
Limited Fog Risk after midnight.

DISCUSSION...

Isolated to widely scattered thunderstorms are possible into this
evening south of Interstate 80. If thunderstorms can form and
intensify, an isolated strong to severe thunderstorm may be
possible.

Patchy fog is possible along and north of I-80 overnight, with
locally dense fog possible.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Thursday Night and Friday...
Limited Thunderstorm Risk.
Tuesday...
Limited Thunderstorm Risk.

DISCUSSION:

Isolated to widely scattered thunderstorms are possible on Friday.
Due to moderate to potentially strong instability and sufficient
wind shear, there is expected to be a conditional strong to severe
thunderstorm risk, with the main threats wind and hail.

.SPOTTER INFORMATION STATEMENT...

Spotters are unlikely to be needed into this evening.

GENERAL STORM MOTION OF THE DAY:

Moving toward the east southeast at 30 mph.
</pre>


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Hazardous Weather Outlook for McHenry Co., IL

<pre>FLUS43 KLOT 031647
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1147 AM CDT Wed Jun 3 2020


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
1147 AM CDT Wed Jun 3 2020 /1247 PM EDT Wed Jun 3 2020/

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

.DAY ONE...This Afternoon and Tonight.

Weather hazards expected...

Limited Thunderstorm Risk...with an associated:
Elevated hail risk...up to quarter size.
Elevated damaging wind risk...up to 60 mph.
Limited Flooding Risk.
Significant Fog Risk.

DISCUSSION...

Scattered showers and thunderstorms are expected to redevelop this
afternoon mainly along and south of US-24. The strongest storms
may produce quarter size hail, 50-60 mph wind gusts, frequent
lightning, and torrential rainfall.

Tonight, patches of fog, some dense, are possible.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Friday...
Limited Thunderstorm Risk.
Monday and Tuesday...
Limited Thunderstorm Risk.


.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated this afternoon.

GENERAL STORM MOTION OF THE DAY:

Moving toward the east-southeast at 30 mph.
</pre>


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Hazardous Weather Outlook for McHenry Co., IL

<pre>FLUS43 KLOT 030900
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
400 AM CDT Wed Jun 3 2020


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
400 AM CDT Wed Jun 3 2020 /500 AM EDT Wed Jun 3 2020/

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

.DAY ONE...Today and Tonight.

Weather hazards expected...

Elevated Thunderstorm Risk...with an associated:
Elevated Hail Risk...up to half dollar size.
Elevated Damaging Wind Risk...up to 60 mph.
Limited Flooding Risk.

DISCUSSION...

Scattered thunderstorms are possible along and north of
Interstate 80 through early afternoon, and likely south of
Interstate 80 during much of the afternoon. A few of these
storms may be severe as well as present a localized flash
flooding threat.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Thursday and Friday...
Limited Thunderstorm Risk.
Monday and Tuesday...
Limited Thunderstorm Risk.


.SPOTTER INFORMATION STATEMENT...

Spotters may be needed .

GENERAL STORM MOTION OF THE DAY:

Moving toward the east-southeast at 30 mph.
</pre>


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Tuesday, June 2, 2020

Hazardous Weather Outlook for McHenry Co., IL

<pre>FLUS43 KLOT 022116
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
416 PM CDT Tue Jun 2 2020


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
416 PM CDT Tue Jun 2 2020 /516 PM EDT Tue Jun 2 2020/

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...with an associated:
Limited hail risk...up to quarter size.
Limited damaging wind risk...up to 60 mph.

DISCUSSION...

Thunderstorms may move into northern Illinois from Wisconsin
overnight, though there is fairly low confidence on the timing and
intensity of the thunderstorms if and when this occurs. Should the
thunderstorms maintain enough strength, there may be isolated
instances of severe weather along and north of Interstates 88 and
290. If any severe thunderstorms occur, the main threats would be
wind and hail, along with a threat for locally heavy downpours.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Wednesday...
Elevated Severe Thunderstorm Risk south of Interstate 80.
Limited Flooding Risk south of Interstate 80.
Thursday and Friday...
Limited Thunderstorm Risk.

DISCUSSION:

Additional thunderstorms are forecast on Wednesday as a weak cold
front sags south. Some of these may be severe, with a threat for
damaging winds and large hail, along with producing heavy
downpours and possibly an isolated flooding risk. The highest
confidence in occurrence and scattered coverage of thunderstorms
is south of I-80 during the afternoon. If thunderstorms can form
in the late morning through early afternoon farther north, the
isolated severe risk could extend as far north as the Interstate
90 corridor in northern Illinois.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated due to the later night risk.

GENERAL STORM MOTION OF THE DAY:

Moving toward the east to possibly southeast at 20 to 30 mph.
</pre>


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Hazardous Weather Outlook for McHenry Co., IL

<pre>FLUS43 KLOT 021744
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1244 PM CDT Tue Jun 2 2020


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
1244 PM CDT Tue Jun 2 2020 /144 PM EDT Tue Jun 2 2020/

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

.DAY ONE...This Afternoon and Tonight.

Weather hazards expected...

Elevated Thunderstorm Risk overnight...with an associated:
Limited hail risk...up to quarter size.
Limited damaging wind risk...up to 60 mph.
Limited Flooding Risk.
Limited Excessive Heat Risk.

DISCUSSION...

Early season heat will prevail today with afternoon heat indices
reaching the mid 90s.

Thunderstorms are possible overnight, especially along and north of
Interstates 88 and 290. Some of these may be strong to severe, with
gusty winds, large hail, and a localized flooding risk, though
the coverage of severe weather should be low. Higher severe
chances will be north of the Illinois Wisconsin border.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Wednesday...
Elevated Severe Thunderstorm Risk.
Limited Flooding Risk.
Thursday and Friday...
Limited Thunderstorm Risk.
Monday...
Limited Thunderstorm Risk.

DISCUSSION:

Scattered thunderstorms on Wednesday morning are possible and on
Wednesday afternoon are likely along and south of I-80. Some of these
storms could be severe with an additional heavy rain threat.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated due to the later night risk.

GENERAL STORM MOTION OF THE DAY:

Moving toward the east southeast at 35 to 40 mph.
</pre>


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