Alert archive / Wisconsin / Frost Advisories in 2021
Frost Advisory 15, NWS Green Bay, WI
NWS Green Bay, WI issued this frost advisory at Oct 21, 2021, 2:17 PM CDT for 6 counties in Wisconsin. It took effect at Oct 22, 2021, 12:00 AM CDT. It was in force for 8 hr.
The area
The counties it named.
The facts
- Issued
- Oct 21, 2021, 2:17 PM CDT (19:17 UTC)
- In effect from
- Oct 22, 2021, 12:00 AM CDT
- Expired
- Oct 22, 2021, 8:00 AM CDT
- In force
- 8 hr
- Issued by
- NWS Green Bay, WI
Counties Brown County, WI, Calumet County, WI, Kewaunee County, WI, Manitowoc County, WI, Outagamie County, WI, Winnebago County, WI
The radar
The Green Bay radar (KGRB), 26 km from the middle of the area, began a volume at 19:17 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
Green Bay/Straub, WI (KGRB), launched 12:00Z, 7.3 hours before the alert went out and 23 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
- 519 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 169 m²/s²
- 0-3 km storm-relative helicity
- 162 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
892 WWUS73 KGRB 211917 NPWGRB URGENT - WEATHER MESSAGE National Weather Service Green Bay WI 217 PM CDT Thu Oct 21 2021 WIZ038>040-048>050-220330- /O.NEW.KGRB.FR.Y.0015.211022T0500Z-211022T1300Z/ Outagamie-Brown-Kewaunee-Winnebago-Calumet-Manitowoc- Including the cities of Green Bay, Brillion, Menasha, Neenah, Two Rivers, Manitowoc, Chilton, Luxemburg, New Holstein, Appleton, Oshkosh, and Kewaunee 217 PM CDT Thu Oct 21 2021 ...FROST ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM CDT FRIDAY... * WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Calumet, Manitowoc, Winnebago, Brown, Kewaunee and Outagamie Counties. * WHEN...From Midnight tonight to 8 AM CDT Friday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ For more information, visit us at http://www.weather.gov/GreenBay Kallas
2 follow-up statements
735 WWUS73 KGRB 220322 NPWGRB URGENT - WEATHER MESSAGE National Weather Service Green Bay WI 1022 PM CDT Thu Oct 21 2021 WIZ038>040-048>050-221300- /O.CON.KGRB.FR.Y.0015.211022T0500Z-211022T1300Z/ Outagamie-Brown-Kewaunee-Winnebago-Calumet-Manitowoc- Including the cities of Green Bay, Brillion, Menasha, Neenah, Two Rivers, Manitowoc, Chilton, Luxemburg, New Holstein, Appleton, Oshkosh, and Kewaunee 1022 PM CDT Thu Oct 21 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT FRIDAY... * WHAT...Temperatures as low as 30 degrees will result in frost formation. * WHERE...Calumet, Manitowoc, Winnebago, Brown, Kewaunee and Outagamie Counties. * WHEN...Until 8 AM CDT Friday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ For more information, visit us at http://www.weather.gov/GreenBay Cooley
368 WWUS73 KGRB 220844 NPWGRB URGENT - WEATHER MESSAGE National Weather Service Green Bay WI 344 AM CDT Fri Oct 22 2021 WIZ038>040-048>050-221300- /O.CON.KGRB.FR.Y.0015.000000T0000Z-211022T1300Z/ Outagamie-Brown-Kewaunee-Winnebago-Calumet-Manitowoc- Including the cities of Green Bay, Brillion, Menasha, Neenah, Two Rivers, Manitowoc, Chilton, Luxemburg, New Holstein, Appleton, Oshkosh, and Kewaunee 344 AM CDT Fri Oct 22 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT THIS MORNING... * WHAT...Temperatures as low as 30 degrees will result in frost formation. * WHERE...Calumet, Manitowoc, Winnebago, Brown, Kewaunee and Outagamie Counties. * WHEN...Until 8 AM CDT this morning. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ For more information, visit us at http://www.weather.gov/GreenBay Kurimski
Nearby
Frost Advisories in Wisconsin, 2021Every frost 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.