Alert archive / Illinois / Wind Chill Advisories in 2021

Wind Chill Advisory 7, NWS Quad Cities, IA

February 15, 20214 counties in Illinois

NWS Quad Cities, IA issued this wind chill advisory at Feb 15, 2021, 12:29 AM CST for 4 counties in Illinois. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued
Feb 15, 2021, 12:29 AM CST (06:29 UTC)
Expired
Feb 15, 2021, 12:00 PM CST
In force
12 hr
Issued by
NWS Quad Cities, IA

Counties Carroll County, IL, Jo Daviess County, IL, Stephenson County, IL, Whiteside County, IL

The radar

The Quad Cities radar (KDVN), 79 km from the middle of the area, began a volume at 06:28 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 6.5 hours before the alert went out and 74 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Davenport, at 00:00Z on 2021-02-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Davenport, at 00:00Z on 2021-02-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 11 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1424 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
11 m²/s²
0-3 km storm-relative helicity
169 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

320 
WWUS43 KDVN 150629
WSWDVN

URGENT - WINTER WEATHER MESSAGE
National Weather Service Quad Cities IA IL
1229 AM CST Mon Feb 15 2021

...Dangerous Cold Temperatures and Wind Chills Overnight through 
this Morning and Accumulating Snow this Afternoon into Evening...

.Arctic air and north winds will lead to bitter cold wind chills
of 25 below to 35 below zero at times tonight through the morning
hours. A system will bring accumulating snow to the area this  
afternoon into the evening. 1 to 3 inches of snow is expected 
area-wide with 2 to 4 inches possible along and south of a line 
from Princeton, Illinois to Kahoka, Missouri.

ILZ001-002-007-009-151430-
/O.CAN.KDVN.WC.W.0003.000000T0000Z-210215T1800Z/
/O.NEW.KDVN.WC.Y.0007.210215T0629Z-210215T1800Z/
Jo Daviess-Stephenson-Carroll-Whiteside-
Including the cities of Galena, Freeport, Mount Carroll, 
and Sterling
1229 AM CST Mon Feb 15 2021

...WIND CHILL ADVISORY IN EFFECT UNTIL NOON CST TODAY...
...WIND CHILL WARNING IS CANCELLED...

* WHAT...Very cold wind chills. Wind chills as low as 25 to near  
  30 below zero.

* WHERE...Jo Daviess, Stephenson, Carroll and Whiteside Counties.

* WHEN...Until noon CST today.

* IMPACTS...The cold wind chills could cause frostbite on 
  exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

&&

$$

IAZ089-099-ILZ016>018-024>026-034-035-MOZ010-151430-
/O.CON.KDVN.WC.W.0003.000000T0000Z-210215T1800Z/
/O.CON.KDVN.WW.Y.0011.210215T1800Z-210216T1200Z/
Des Moines-Lee-Henry IL-Bureau-Putnam-Mercer-Henderson-Warren-
Hancock-McDonough-Clark-
Including the cities of Burlington, Fort Madison, Geneseo, 
Princeton, Hennepin, Aledo, Oquawka, Monmouth, Carthage, Macomb, 
and Kahoka
1229 AM CST Mon Feb 15 2021

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON CST TODAY...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO
6 AM CST TUESDAY...

* WHAT...For the Wind Chill Warning, dangerously cold wind chills
  as low as 25 below zero. For the Winter Weather Advisory, snow
  expected. Total snow accumulations of 2 to 4 inches.

* WHERE...Portions of northeast Missouri, southeast Iowa and 
  north central, northwest and west central Illinois.

* WHEN...For the Wind Chill Warning, until noon CST today. For 
  the Winter Weather Advisory, from noon today to 6 AM CST 
  Tuesday.

* IMPACTS...Plan on slippery road conditions. The hazardous
  conditions could impact the evening commute. The cold wind 
  chills could cause frostbite on exposed skin in as little as 30 
  minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you
wear appropriate clothing, a hat, and gloves. 

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

IAZ040>042-051>054-063>066-076-077-087-151430-
/O.CON.KDVN.WC.W.0003.000000T0000Z-210215T1800Z/
Buchanan-Delaware-Dubuque-Benton-Linn-Jones-Jackson-Iowa-Johnson-
Cedar-Clinton-Keokuk-Washington-Jefferson-
Including the cities of Independence, Manchester, Dubuque, 
Vinton, Cedar Rapids, Anamosa, Maquoketa, Marengo, Iowa City, 
Tipton, Clinton, Sigourney, Washington, and Fairfield
1229 AM CST Mon Feb 15 2021

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON CST TODAY...

* WHAT...Dangerously cold wind chills. Wind chills as low as 35 
  below zero.

* WHERE...Portions of east central, northeast and southeast Iowa.

* WHEN...Until noon CST today.

* IMPACTS...The dangerously cold wind chills could cause 
  frostbite on exposed skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you
wear appropriate clothing, a hat, and gloves. 

&&

$$

IAZ067-068-078-088-098-ILZ015-MOZ009-151430-
/O.CON.KDVN.WC.W.0003.000000T0000Z-210215T1800Z/
Muscatine-Scott-Louisa-Henry IA-Van Buren-Rock Island-Scotland-
Including the cities of Muscatine, Davenport, Bettendorf, 
Wapello, Mount Pleasant, Keosauqua, Moline, Rock Island, 
and Memphis
1229 AM CST Mon Feb 15 2021

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON CST TODAY...

* WHAT...Dangerously cold wind chills. Wind chills as low as 30 
  below zero.

* WHERE...Portions of northeast Missouri, east central and 
  southeast Iowa and northwest Illinois.

* WHEN...Until noon CST today.

* IMPACTS...The cold wind chills could cause frostbite on 
  exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you
wear appropriate clothing, a hat, and gloves. 

&&

$$

www.weather.gov/dvn
2 follow-up statements
120 
WWUS43 KDVN 151054
WSWDVN

URGENT - WINTER WEATHER MESSAGE
National Weather Service Quad Cities IA IL
454 AM CST Mon Feb 15 2021

...Dangerous Cold Temperatures and Wind Chills this Morning and 
Accumulating Snow this Afternoon into Evening...

.Arctic air and north winds will lead to bitter cold wind chills
of 25 below to 35 below zero at times this morning. A system will
bring accumulating snow to the area this afternoon into the 
evening. 1 to 3 inches of snow is expected area-wide with 2 to 4 
inches possible along and south of a line from Princeton, Illinois
to Kahoka, Missouri.

IAZ089-099-ILZ016>018-024>026-034-035-MOZ010-151900-
/O.CON.KDVN.WC.W.0003.000000T0000Z-210215T1800Z/
/O.CON.KDVN.WW.Y.0011.210215T1800Z-210216T1200Z/
Des Moines-Lee-Henry IL-Bureau-Putnam-Mercer-Henderson-Warren-
Hancock-McDonough-Clark-
Including the cities of Burlington, Fort Madison, Geneseo, 
Princeton, Hennepin, Aledo, Oquawka, Monmouth, Carthage, Macomb, 
and Kahoka
454 AM CST Mon Feb 15 2021

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON CST TODAY...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO
6 AM CST TUESDAY...

* WHAT...For the Wind Chill Warning, dangerously cold wind chills.
  Wind chills as low as 25 below zero. For the Winter Weather 
  Advisory, snow expected. Total snow accumulations of 2 to 4 
  inches.

* WHERE...Portions of northeast Missouri, southeast Iowa and 
  north central, northwest and west central Illinois.

* WHEN...For the Wind Chill Warning, until noon CST today. For 
  the Winter Weather Advisory, from noon today to 6 AM CST 
  Tuesday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning or evening commute. The 
  cold wind chills could cause frostbite on exposed skin in as 
  little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you
wear appropriate clothing, a hat, and gloves. 

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

IAZ040>042-051>054-063>066-076-077-087-151800-
/O.CON.KDVN.WC.W.0003.000000T0000Z-210215T1800Z/
Buchanan-Delaware-Dubuque-Benton-Linn-Jones-Jackson-Iowa-Johnson-
Cedar-Clinton-Keokuk-Washington-Jefferson-
Including the cities of Independence, Manchester, Dubuque, 
Vinton, Cedar Rapids, Anamosa, Maquoketa, Marengo, Iowa City, 
Tipton, Clinton, Sigourney, Washington, and Fairfield
454 AM CST Mon Feb 15 2021

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON CST TODAY...

* WHAT...Dangerously cold wind chills. Wind chills as low as 30 
  below zero.

* WHERE...Portions of east central, northeast and southeast Iowa.

* WHEN...Until noon CST today.

* IMPACTS...The dangerously cold wind chills could cause 
  frostbite on exposed skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you
wear appropriate clothing, a hat, and gloves. 

&&

$$

IAZ067-068-078-088-098-ILZ015-MOZ009-151800-
/O.CON.KDVN.WC.W.0003.000000T0000Z-210215T1800Z/
Muscatine-Scott-Louisa-Henry IA-Van Buren-Rock Island-Scotland-
Including the cities of Muscatine, Davenport, Bettendorf, 
Wapello, Mount Pleasant, Keosauqua, Moline, Rock Island, 
and Memphis
454 AM CST Mon Feb 15 2021

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON CST TODAY...

* WHAT...Dangerously cold wind chills. Wind chills as low as 25 
  to near 30 below zero.

* WHERE...Portions of northeast Missouri, east central and 
  southeast Iowa and northwest Illinois.

* WHEN...Until noon CST today.

* IMPACTS...The cold wind chills could cause frostbite on 
  exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you
wear appropriate clothing, a hat, and gloves. 

&&

$$

ILZ001-002-007-009-151800-
/O.CON.KDVN.WC.Y.0007.000000T0000Z-210215T1800Z/
Jo Daviess-Stephenson-Carroll-Whiteside-
Including the cities of Galena, Freeport, Mount Carroll, 
and Sterling
454 AM CST Mon Feb 15 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY...

* WHAT...Very cold wind chills. Wind chills as low as 25 below 
  zero.

* WHERE...Stephenson, Jo Daviess, Carroll and Whiteside Counties.

* WHEN...Until noon CST today.

* IMPACTS...The cold wind chills could cause frostbite on 
  exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

&&

$$

www.weather.gov/dvn
632 
WWUS43 KDVN 151810
WSWDVN

URGENT - WINTER WEATHER MESSAGE
National Weather Service Quad Cities IA IL
1210 PM CST Mon Feb 15 2021

...Dangerous Wind Chills Tonight and Accumulating Snow this 
Afternoon into the Evening...

.North winds will lead to cold wind chills of 15 below to 25 
below zero at times tonight. A storm system will bring 
accumulating snow to the area late this afternoon into the 
evening. 1 to 3 inches of snow is expected, with 2 to 4 inches 
possible along and south of a line from Princeton, Illinois to 
Kahoka, Missouri.

IAZ089-099-MOZ010-160215-
/O.EXP.KDVN.WC.W.0003.000000T0000Z-210215T1800Z/
/O.NEW.KDVN.WC.Y.0008.210215T1810Z-210216T1600Z/
/O.CON.KDVN.WW.Y.0011.000000T0000Z-210216T1200Z/
Des Moines-Lee-Clark-
Including the cities of Burlington, Fort Madison, and Kahoka
1210 PM CST Mon Feb 15 2021

...WIND CHILL ADVISORY IN EFFECT UNTIL 10 AM CST TUESDAY...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST
TUESDAY...
...WIND CHILL WARNING HAS EXPIRED...

* WHAT...For the Winter Weather Advisory, snow. Additional snow
  accumulations of 1 to 3 inches. For the Wind Chill Advisory,
  wind chills as low as 25 below zero.

* WHERE...In Iowa, Des Moines and Lee Counties. In Missouri, 
  Clark County.

* WHEN...For the Winter Weather Advisory, until 6 AM CST 
  Tuesday. For the Wind Chill Advisory, until 10 AM CST Tuesday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning or evening commute. The 
  cold wind chills could cause frostbite on exposed skin in as 
  little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

ILZ016>018-024>026-034-035-160215-
/O.EXP.KDVN.WC.W.0003.000000T0000Z-210215T1800Z/
/O.CON.KDVN.WW.Y.0011.000000T0000Z-210216T1200Z/
Henry IL-Bureau-Putnam-Mercer-Henderson-Warren-Hancock-McDonough-
Including the cities of Geneseo, Princeton, Hennepin, Aledo, 
Oquawka, Monmouth, Carthage, and Macomb
1210 PM CST Mon Feb 15 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST
TUESDAY...
...WIND CHILL WARNING HAS EXPIRED...

* WHAT...Snow. Additional snow accumulations of 2 to 4 inches.
  Some blowing and drifting snow may be possible on east west
  roads. 

* WHERE...Portions of north central, northwest and west central 
  Illinois.

* WHEN...Until 6 AM CST Tuesday.

* IMPACTS...Plan on slippery road conditions. The hazardous
  conditions could impact the evening commute. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

IAZ040>042-051>054-063>067-076>078-087-088-098-MOZ009-160215-
/O.EXP.KDVN.WC.W.0003.000000T0000Z-210215T1800Z/
/O.NEW.KDVN.WC.Y.0008.210215T1810Z-210216T1600Z/
Buchanan-Delaware-Dubuque-Benton-Linn-Jones-Jackson-Iowa-Johnson-
Cedar-Clinton-Muscatine-Keokuk-Washington-Louisa-Jefferson-
Henry IA-Van Buren-Scotland-
Including the cities of Independence, Manchester, Dubuque, 
Vinton, Cedar Rapids, Anamosa, Maquoketa, Marengo, Iowa City, 
Tipton, Clinton, Muscatine, Sigourney, Washington, Wapello, 
Fairfield, Mount Pleasant, Keosauqua, and Memphis
1210 PM CST Mon Feb 15 2021

...WIND CHILL ADVISORY IN EFFECT UNTIL 10 AM CST TUESDAY...
...WIND CHILL WARNING HAS EXPIRED...

* WHAT...Very cold wind chills. Wind chills as low as 30 below 
  zero.

* WHERE...Portions of east central, northeast and southeast Iowa 
  and northeast Missouri.

* WHEN...Until 10 AM CST Tuesday.

* IMPACTS...The cold wind chills could cause frostbite on 
  exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

&&

$$

IAZ068-ILZ015-151915-
/O.EXP.KDVN.WC.W.0003.000000T0000Z-210215T1800Z/
Scott-Rock Island-
Including the cities of Davenport, Bettendorf, Moline, 
and Rock Island
1210 PM CST Mon Feb 15 2021

...WIND CHILL WARNING HAS EXPIRED...

Wind chills have lowered below -20 degrees and will remain in the
-5 to -15 degree range this afternoon and evening.

$$

ILZ001-002-007-009-151915-
/O.EXP.KDVN.WC.Y.0007.000000T0000Z-210215T1800Z/
Jo Daviess-Stephenson-Carroll-Whiteside-
Including the cities of Galena, Freeport, Mount Carroll, 
and Sterling
1210 PM CST Mon Feb 15 2021

...WIND CHILL ADVISORY HAS EXPIRED...

Wind chills have lowered below -20 degrees and will remain in the
-5 to -15 degree range this afternoon and evening.

$$

GROSS

Nearby

Wind Chill Advisories in Illinois, 2021Every wind chill advisory in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.