Monday, March 25, 2019

Hazardous Weather Outlook for McHenry Co., IL

<pre>FLUS43 KLOT 250919 HWOLOT

Hazardous Weather Outlook National Weather Service Chicago/Romeoville IL 419 AM CDT Mon Mar 25 2019

Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-DeKalb-Kane-DuPage-Cook- La Salle-Kendall-Grundy-Will-Kankakee-Livingston-Iroquois-Ford- Lake IN-Porter-Newton-Jasper-Benton- 419 AM CDT Mon Mar 25 2019 /519 AM EDT Mon Mar 25 2019/

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

.DAY ONE…Today and Tonight.

Elevated Lakeshore Flood Risk.

DISCUSSION…

Strong northerly winds will result in large waves and cause minor lakeshore flooding through at least mid day.

Flooding will continue along portions of the Rock, Pecatonica, and Fox rivers.

.DAYS TWO THROUGH SEVEN…Tuesday through Sunday.

Wednesday…

Limited Thunderstorm Risk at night.

Thursday and Friday…

Limited Flooding Risk.  Limited Thunderstorm Risk.

Saturday…

Limited Flooding Risk.  Limited Non Thunderstorm Wind Risk near Lake Michigan.  Limited Lakeshore Flood Risk.

DISCUSSION:

A frontal boundary will stall over the region late in the week, resulting in a couple bouts of moderate to heavy rainfall. There is a chance for isolated thunderstorms as well. Significant rainfall totals possible, which could cause renewed river and stream rises and lowland flooding.

Flooding will continue along portions of the Rock, Pecatonica, and Fox rivers.

.SPOTTER INFORMATION STATEMENT…

Spotter activation will not be necessary through tonight.

</pre>

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Sunday, March 24, 2019

Flood Warning for McHenry Co., IL until 01:00 PM CDT 3/28

<pre>WGUS83 KLOT 250049 FLSLOT

Flood Statement National Weather Service Chicago/Romeoville IL 749 PM CDT Sun Mar 24 2019

…The Flood Warning continues for the following rivers in Illinois…

Fox River at Algonquin Lock & Dam tailwater affecting Kane and  McHenry Counties  

The following forecasts are based on observed precipitation as well as forecast precipitation 24-48 hours into the future.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

Safety message…If you encounter a flooded roadway…turn around and find an alternate route.

&&

/O.EXT.KLOT.FL.W.0041.000000T0000Z-190328T1800Z/ /AFBI2.2.RS.190315T1415Z.190320T0500Z.190328T1200Z.NO/ 749 PM CDT Sun Mar 24 2019

The Flood Warning continues for

The Fox River at Algonquin Lock & Dam tailwater, or from Johnsburg  downstream to Red Gate Road in St. Charles.
  • until Thursday afternoon.

  • At 730 PM Sunday the stage was 10.2 feet.

  • Flood stage is 9.5 feet.

  • Minor flooding is occurring and Minor flooding is forecast.

  • Forecast…The river will hold nearly steady through early Monday, before resuming falling to below flood stage by Thursday morning.

&&

LAT…LON 4238 8829 4234 8818 4223 8813 4194 8827

4195 8838 4219 8830

</pre>

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Hazardous Weather Outlook for McHenry Co., IL

<pre>FLUS43 KLOT 241959 CCA HWOLOT

Hazardous Weather Outlook…CORRECTED National Weather Service Chicago/Romeoville IL 259 PM CDT Sun Mar 24 2019

Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-DeKalb-Kane-DuPage-Cook- La Salle-Kendall-Grundy-Will-Kankakee-Livingston-Iroquois-Ford- Lake IN-Porter-Newton-Jasper-Benton- 259 PM CDT Sun Mar 24 2019 /359 PM EDT Sun Mar 24 2019/

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

.DAY ONE…Tonight.

Weather hazards expected…

Limited Non thunderstorm wind Risk near Lake Michigan.  Elevated Lakeshore Flood Risk.

DISCUSSION…

Strong northerly winds will gust to as high as 35 mph along the lakeshore this evening through the overnight. These winds will result in large waves and cause minor lakeshore flooding.

Flooding will continue along portions of the Rock, Pecatonica, and Fox rivers.

.DAYS TWO THROUGH SEVEN…Monday through Saturday.

Thursday and Friday…

Limited Thunderstorm Risk.

DISCUSSION:

A frontal boundary may stall over the region late in the week resulting in a couple windows of possible thunderstorms. In addition, heavy rainfall is possible.

Flooding will continue along portions of the Rock, Pecatonica, and Fox rivers.

.SPOTTER INFORMATION STATEMENT…

Spotter activation will not be necessary through tonight.

</pre>

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Hazardous Weather Outlook for McHenry Co., IL

<pre>FLUS43 KLOT 241958 HWOLOT

Hazardous Weather Outlook National Weather Service Chicago/Romeoville IL 258 PM CDT Sun Mar 24 2019

Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-DeKalb-Kane-DuPage-Cook- La Salle-Kendall-Grundy-Will-Kankakee-Livingston-Iroquois-Ford- Lake IN-Porter-Newton-Jasper-Benton- 258 PM CDT Sun Mar 24 2019 /358 PM EDT Sun Mar 24 2019/

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

.DAY ONE…Tonight.

Weather hazards expected…

Limited Non thunderstorm wind Risk near Lake Michigan.  Elevated Lakeshore Flood Risk.

DISCUSSION…

Strong northerly winds will gust to as high as 35 mph along the lakeshore this evening through the overnight. These winds will result in large waves and cause minor lakeshore flooding.

.DAYS TWO THROUGH SEVEN…Monday through Saturday.

Thursday and Friday…

Limited Thunderstorm Risk.

DISCUSSION:

A frontal boundary may stall over the region late in the week resulting in a couple windows of possible thunderstorms. In addition, heavy rainfall is possible.

.SPOTTER INFORMATION STATEMENT…

Spotter activation will not be necessary through tonight.

</pre>

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Hazardous Weather Outlook for McHenry Co., IL

<pre>FLUS43 KLOT 241715 HWOLOT

Hazardous Weather Outlook National Weather Service Chicago/Romeoville IL 1215 PM CDT Sun Mar 24 2019

Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-DeKalb-Kane-DuPage-Cook- La Salle-Kendall-Grundy-Will-Kankakee-Livingston-Iroquois-Ford- Lake IN-Porter-Newton-Jasper-Benton- 1215 PM CDT Sun Mar 24 2019 /115 PM EDT Sun Mar 24 2019/

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 well south of I-80.  Limited Non Thunderstorm Wind Risk near the lake tonight.  Elevated Lakeshore Flood Risk tonight.

DISCUSSION…

There is a slight chance of thunderstorms well south of I-80 late in the afternoon into the evening. Strong northerly winds will gust to as high as 35 mph along the lakeshore this evening through the overnight. These winds will result in large waves and likely cause minor lakeshore flooding.

Flooding will continue along portions of the Rock, Pecatonica, and Fox rivers.

.DAYS TWO THROUGH SEVEN…Monday through Saturday.

Monday…

Elevated Lakeshore Flood Risk in the morning.

DISCUSSION:

Minor lakeshore flooding is likely Monday morning.

Flooding will continue along portions of the Rock, Pecatonica, and Fox rivers.

.SPOTTER INFORMATION STATEMENT…

Spotter activation will not be necessary through tonight.

</pre>

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Flood Warning for McHenry Co., IL until 07:00 PM CDT 3/27

<pre>WGUS83 KLOT 241438 FLSLOT

Flood Statement National Weather Service Chicago/Romeoville IL 938 AM CDT Sun Mar 24 2019

…The Flood Warning continues for the following rivers in Illinois…

Fox River at Algonquin Lock & Dam tailwater affecting Kane and  McHenry Counties

The following forecasts are based on observed precipitation as well as forecast precipitation 24-48 hours into the future.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

Safety message…If you encounter a flooded roadway…turn around and find an alternate route.

&&

/O.EXT.KLOT.FL.W.0041.000000T0000Z-190328T0000Z/ /AFBI2.2.RS.190315T1415Z.190320T0500Z.190327T1500Z.NO/ 938 AM CDT Sun Mar 24 2019

The Flood Warning continues for

The Fox River at Algonquin Lock & Dam tailwater, or from Johnsburg  downstream to Red Gate Road in St. Charles.
  • until early Wednesday evening.

  • At 830 AM Sunday the stage was 10.2 feet.

  • Flood stage is 9.5 feet.

  • Minor flooding is occurring and Minor flooding is forecast.

  • Forecast…The river will continue to fall to below flood stage by late Wednesday morning.

&&

LAT…LON 4238 8829 4234 8818 4223 8813 4194 8827

4195 8838 4219 8830

</pre>

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Hazardous Weather Outlook for McHenry Co., IL

<pre>FLUS43 KLOT 240935 HWOLOT

Hazardous Weather Outlook National Weather Service Chicago/Romeoville IL 435 AM CDT Sun Mar 24 2019

Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-DeKalb-Kane-DuPage-Cook- La Salle-Kendall-Grundy-Will-Kankakee-Livingston-Iroquois-Ford- Lake IN-Porter-Newton-Jasper-Benton- 435 AM CDT Sun Mar 24 2019 /535 AM EDT Sun Mar 24 2019/

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 well south of I-80.  Limited Non Thunderstorm Wind Risk near the lake tonight.  Elevated Lakeshore Flood Risk tonight.

DISCUSSION…

There is a slight chance of thunderstorms well south of I-80 late in the afternoon into the evening. Strong northerly winds will gust to as high as 35 mph along the lakeshore this evening through the overnight. These winds will result in large waves and likely cause minor lakeshore flooding.

Flooding will continue along portions of the Rock, Pecatonica, and Fox rivers.

.DAYS TWO THROUGH SEVEN…Monday through Saturday.

Monday…

Elevated Lakeshore Flood Risk in the morning.

DISCUSSION:

Minor lakeshore flooding is likely Monday morning.

Flooding will continue along portions of the Rock, Pecatonica, and Fox rivers.

.SPOTTER INFORMATION STATEMENT…

Spotter activation will not be necessary through tonight.

</pre>

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