Alert archive / Iowa / Wind Chill Advisories in 2021
Wind Chill Advisory 1, NWS Quad Cities, IA
NWS Quad Cities, IA issued this wind chill advisory at Feb 6, 2021, 12:51 AM CST for 11 counties in Iowa; Carroll County, Jo Daviess County, Stephenson County, Illinois. It was in force for 9 hr.
The area
The counties it named.
The facts
- Issued
- Feb 6, 2021, 12:51 AM CST (06:51 UTC)
- Expired
- Feb 6, 2021, 9:23 AM CST
- In force
- 9 hr
- Issued by
- NWS Quad Cities, IA
Counties Benton County, IA, Buchanan County, IA, Cedar County, IA, Clinton County, IA, Delaware County, IA, Dubuque County, IA, Iowa County, IA, Jackson County, IA, Johnson County, IA, Jones County, IA, Linn County, IA, Carroll County, IL, Jo Daviess County, IL, Stephenson County, IL
The radar
The Quad Cities radar (KDVN), 68 km from the middle of the area, began a volume at 06:55 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, 6.9 hours before the alert went out and 71 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 835 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 72 m²/s²
- 0-3 km storm-relative helicity
- 104 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
197 WWUS43 KDVN 060651 WSWDVN URGENT - WINTER WEATHER MESSAGE National Weather Service Quad Cities IA IL 1251 AM CST Sat Feb 6 2021 ...Very Cold Wind Chills into Saturday Morning and Accumulating Snow Through the Afternoon... .Light snow is expected to move into the area Saturday morning, becoming steadiest during the afternoon before diminishing by mid evening. The snow will be fluffy in nature which may result in minor drifting across roadways. IAZ040>042-051>054-063>066-ILZ001-002-007-061500- /O.NEW.KDVN.WC.Y.0001.210206T0651Z-210206T1600Z/ Buchanan-Delaware-Dubuque-Benton-Linn-Jones-Jackson-Iowa-Johnson- Cedar-Clinton-Jo Daviess-Stephenson-Carroll- Including the cities of Independence, Manchester, Dubuque, Vinton, Cedar Rapids, Anamosa, Maquoketa, Marengo, Iowa City, Tipton, Clinton, Galena, Freeport, and Mount Carroll 1251 AM CST Sat Feb 6 2021 ...WIND CHILL ADVISORY IN EFFECT UNTIL 10 AM CST THIS MORNING... * WHAT...Very cold wind chills as low as 15 to 20 below zero. * WHERE...Portions of east central and northeast Iowa and northwest Illinois. * WHEN...Until 10 AM CST this morning. * 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. && $$ IAZ087>089-098-099-ILZ025-026-034-035-MOZ009-010-061500- /O.CON.KDVN.WW.Y.0008.210206T1500Z-210207T0300Z/ Jefferson-Henry IA-Des Moines-Van Buren-Lee-Henderson-Warren- Hancock-McDonough-Scotland-Clark- Including the cities of Fairfield, Mount Pleasant, Burlington, Keosauqua, Fort Madison, Oquawka, Monmouth, Carthage, Macomb, Memphis, and Kahoka 1251 AM CST Sat Feb 6 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 9 PM CST THIS EVENING... * WHAT...Snow expected. Total accumulations of 1 to 3 inches. Minor drifting of snow is possible. * WHERE...Portions of northeast Missouri, southeast Iowa and west central Illinois. * WHEN...From 9 AM to 9 PM CST Saturday. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ www.weather.gov/dvn Uttech
2 follow-up statements
687 WWUS43 KDVN 060947 WSWDVN URGENT - WINTER WEATHER MESSAGE National Weather Service Quad Cities IA IL 347 AM CST Sat Feb 6 2021 ...Very Cold Wind Chills This Morning and Again Saturday Night and Accumulating Snow Today... .Light snow is expected to move into the area this morning, becoming steadiest during the afternoon before diminishing by mid evening. The snow will be fluffy in nature which may result in minor drifting across roadways. Extremely cold wind chills Saturday night into Sunday morning. IAZ040>042-051>054-063>066-ILZ001-002-007-061800- /O.NEW.KDVN.WC.W.0001.210207T0000Z-210207T1800Z/ /O.CON.KDVN.WC.Y.0001.000000T0000Z-210206T1600Z/ Buchanan-Delaware-Dubuque-Benton-Linn-Jones-Jackson-Iowa-Johnson- Cedar-Clinton-Jo Daviess-Stephenson-Carroll- Including the cities of Independence, Manchester, Dubuque, Vinton, Cedar Rapids, Anamosa, Maquoketa, Marengo, Iowa City, Tipton, Clinton, Galena, Freeport, and Mount Carroll 347 AM CST Sat Feb 6 2021 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 10 AM CST THIS MORNING... ...WIND CHILL WARNING IN EFFECT FROM 6 PM THIS EVENING TO NOON CST SUNDAY... * WHAT...For the Wind Chill Warning, dangerously cold wind chills expected. Wind chills as low as 35 below zero. For the Wind Chill Advisory, very cold wind chills. Wind chills as low as 20 below zero. * WHERE...Portions of east central and northeast Iowa and northwest Illinois. * WHEN...For the Wind Chill Warning, from 6 PM this evening to noon CST Sunday. For the Wind Chill Advisory, until 10 AM CST this morning. * 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. Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$ IAZ087>089-098-099-ILZ025-026-034-035-MOZ009-010-061800- /O.NEW.KDVN.WC.Y.0002.210207T0000Z-210207T1800Z/ /O.CON.KDVN.WW.Y.0008.210206T1500Z-210207T0300Z/ Jefferson-Henry IA-Des Moines-Van Buren-Lee-Henderson-Warren- Hancock-McDonough-Scotland-Clark- Including the cities of Fairfield, Mount Pleasant, Burlington, Keosauqua, Fort Madison, Oquawka, Monmouth, Carthage, Macomb, Memphis, and Kahoka 347 AM CST Sat Feb 6 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 9 PM CST THIS EVENING... ...WIND CHILL ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO NOON CST SUNDAY... * WHAT...For the Winter Weather Advisory, snow expected. Total snow accumulations of 1 to 3 inches. For the Wind Chill Advisory, very cold wind chills expected. Wind chills as low as 25 below zero. * WHERE...Portions of northeast Missouri, southeast Iowa and west central Illinois. * WHEN...For the Winter Weather Advisory, from 9 AM this morning to 9 PM CST this evening. For the Wind Chill Advisory, from 6 PM this evening to noon CST Sunday. * IMPACTS...Plan on slippery road conditions. The cold wind chills could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ078-ILZ016>018-024-061800- /O.NEW.KDVN.WC.Y.0002.210207T0000Z-210207T1800Z/ /O.EXA.KDVN.WW.Y.0008.210206T1500Z-210207T0300Z/ Louisa-Henry IL-Bureau-Putnam-Mercer- Including the cities of Wapello, Geneseo, Princeton, Hennepin, and Aledo 347 AM CST Sat Feb 6 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 9 AM THIS MORNING TO 9 PM CST THIS EVENING... ...WIND CHILL ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO NOON CST SUNDAY... * WHAT...For the Winter Weather Advisory, snow expected. Total snow accumulations of up to two inches. For the Wind Chill Advisory, very cold wind chills expected. Wind chills as low as 25 to 30 below zero. * WHERE...In Iowa, Louisa County. In Illinois, Henry IL, Bureau, Putnam and Mercer Counties. * WHEN...For the Winter Weather Advisory, from 9 AM this morning to 9 PM CST this evening. For the Wind Chill Advisory, from 6 PM this evening to noon CST Sunday. * IMPACTS...Plan on slippery road conditions. 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. && $$ IAZ067-068-076-077-ILZ009-015-061800- /O.NEW.KDVN.WC.Y.0002.210207T0000Z-210207T1800Z/ Muscatine-Scott-Keokuk-Washington-Whiteside-Rock Island- Including the cities of Muscatine, Davenport, Bettendorf, Sigourney, Washington, Sterling, Moline, and Rock Island 347 AM CST Sat Feb 6 2021 ...WIND CHILL ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO NOON CST SUNDAY... * WHAT...Very cold wind chills expected. Wind chills as low as 25 to 30 below zero. * WHERE...Portions of east central and southeast Iowa and northwest Illinois. * WHEN...From 6 PM this evening to noon CST Sunday. * IMPACTS...The cold wind chills could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$ www.weather.gov/dvn
560 WWUS43 KDVN 061523 WSWDVN URGENT - WINTER WEATHER MESSAGE National Weather Service Quad Cities IA IL 923 AM CST Sat Feb 6 2021 ...Very Cold Wind Chills This Morning and Again Saturday Night and Accumulating Snow Today... .Light snow is expected to move into the area this morning, becoming steadiest during the afternoon before diminishing by mid evening. The snow will be fluffy in nature which may result in minor drifting across roadways. Extremely cold wind chills Saturday night into Sunday morning. ILZ016>018-024>026-034-035-062330- /O.CAN.KDVN.WW.Y.0008.000000T0000Z-210207T0300Z/ /O.NEW.KDVN.WW.Y.0009.210206T1800Z-210207T0300Z/ /O.CON.KDVN.WC.Y.0002.210207T0000Z-210207T1800Z/ Henry IL-Bureau-Putnam-Mercer-Henderson-Warren-Hancock-McDonough- Including the cities of Geneseo, Princeton, Hennepin, Aledo, Oquawka, Monmouth, Carthage, and Macomb 923 AM CST Sat Feb 6 2021 ...WINTER WEATHER ADVISORY NOW IN EFFECT FROM NOON UNTIL 9 PM CST THIS EVENING... ...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO NOON CST SUNDAY... * WHAT...For the Winter Weather Advisory, snow expected. Total snow accumulations of 1 to 2 inches. For the Wind Chill Advisory, very cold wind chills expected. Wind chills as low as 30 below zero. * WHERE...Portions of north central, northwest and west central Illinois. * WHEN...For the Winter Weather Advisory, from noon until 9 PM CST this evening. For the Wind Chill Advisory, from 6 PM this evening to noon CST Sunday. * IMPACTS...Plan on slippery road conditions. 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. && $$ IAZ040>042-051>054-063>066-ILZ001-002-007-062330- /O.CAN.KDVN.WC.Y.0001.000000T0000Z-210206T1600Z/ /O.CON.KDVN.WC.W.0001.210207T0000Z-210207T1800Z/ Buchanan-Delaware-Dubuque-Benton-Linn-Jones-Jackson-Iowa-Johnson- Cedar-Clinton-Jo Daviess-Stephenson-Carroll- Including the cities of Independence, Manchester, Dubuque, Vinton, Cedar Rapids, Anamosa, Maquoketa, Marengo, Iowa City, Tipton, Clinton, Galena, Freeport, and Mount Carroll 923 AM CST Sat Feb 6 2021 ...WIND CHILL WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO NOON CST SUNDAY... ...WIND CHILL ADVISORY THIS MORNING IS CANCELLED... * WHAT...Dangerously cold wind chills expected. Wind chills as low as 35 below zero. * WHERE...Portions of east central and northeast Iowa and northwest Illinois. * WHEN...From 6 PM this evening to noon CST Sunday. Lowest wind chills from 3 am to 9 am Sunday morning. * IMPACTS...The dangerously cold wind chills could cause frostbite on exposed skin in as little as 10 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Avoid outside activities if possible. When outside, make sure you wear appropriate clothing, a hat, and gloves. && $$ IAZ078-087>089-098-099-MOZ009-010-062330- /O.CON.KDVN.WW.Y.0008.000000T0000Z-210207T0300Z/ /O.CON.KDVN.WC.Y.0002.210207T0000Z-210207T1800Z/ Louisa-Jefferson-Henry IA-Des Moines-Van Buren-Lee-Scotland-Clark- Including the cities of Wapello, Fairfield, Mount Pleasant, Burlington, Keosauqua, Fort Madison, Memphis, and Kahoka 923 AM CST Sat Feb 6 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 PM CST THIS EVENING... ...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO NOON CST SUNDAY... * WHAT...For the Winter Weather Advisory, snow. Snow accumulations of 1 to 3 inches. For the Wind Chill Advisory, very cold wind chills expected. Wind chills as low as 25 below zero. * WHERE...Portions of southeast Iowa and northeast Missouri. * WHEN...For the Winter Weather Advisory, until 9 PM CST this evening. For the Wind Chill Advisory, from 6 PM this evening to noon CST Sunday. * IMPACTS...Plan on slippery road conditions. 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. && $$ IAZ067-068-076-077-ILZ009-015-062330- /O.CON.KDVN.WC.Y.0002.210207T0000Z-210207T1800Z/ Muscatine-Scott-Keokuk-Washington-Whiteside-Rock Island- Including the cities of Muscatine, Davenport, Bettendorf, Sigourney, Washington, Sterling, Moline, and Rock Island 923 AM CST Sat Feb 6 2021 ...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO NOON CST SUNDAY... * WHAT...Very cold wind chills expected. Wind chills as low as 25 to near 30 below zero. * WHERE...Portions of east central and southeast Iowa and northwest Illinois. * WHEN...From 6 PM this evening to noon CST Sunday. * IMPACTS...The cold wind chills could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$ www.weather.gov/dvn
The office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 6, 3:47 AM CST | Wind Chill Warning | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 10 more | 32 hr |
| Feb 6, 3:47 AM CST | Wind Chill Advisory | DVN | Des Moines, Henry, Jefferson, Keokuk, Lee, Louisa and 4 more | 32 hr |
| Feb 6, 9:23 AM CST | Winter Weather Advisory | DVN | Bureau, Hancock, Henderson, Henry, McDonough, Mercer and 4 more | 10 hr |
Nearby
Wind Chill Advisories in Iowa, 2021Wind 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.