Alert archive / Wisconsin / Frost Advisories in 2021
Frost Advisory 6, NWS Green Bay, WI
NWS Green Bay, WI issued this frost advisory at May 12, 2021, 2:04 PM CDT for 15 counties in Wisconsin. It took effect at May 13, 2021, 12:00 AM CDT. It was in force for 8 hr.
The area
The counties it named.
The facts
- Issued
- May 12, 2021, 2:04 PM CDT (19:04 UTC)
- In effect from
- May 13, 2021, 12:00 AM CDT
- Expired
- May 13, 2021, 7:34 AM CDT
- In force
- 8 hr
- Issued by
- NWS Green Bay, WI
Counties Florence County, WI, Forest County, WI, Langlade County, WI, Lincoln County, WI, Marathon County, WI, Marinette County, WI, Menominee County, WI, Oconto County, WI, Oneida County, WI, Portage County, WI, Shawano County, WI, Vilas County, WI, Waupaca County, WI, Waushara County, WI, Wood County, WI
The radar
The Green Bay radar (KGRB), 101 km from the middle of the area, began a volume at 19:05 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, 7.1 hours before the alert went out and 103 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
- 1721 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 55 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
043 WWUS73 KGRB 121904 NPWGRB URGENT - WEATHER MESSAGE National Weather Service Green Bay WI 204 PM CDT Wed May 12 2021 WIZ005-010>013-018>021-030-031-035>037-045-073-074-130415- /O.NEW.KGRB.FR.Y.0006.210513T0500Z-210513T1300Z/ Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln- Langlade-Menominee-Northern Oconto County-Marathon-Shawano-Wood- Portage-Waupaca-Waushara-Southern Marinette County-Southern Oconto County- Including the cities of Spread Eagle, New London, Keshena, Mountain, Antigo, Neopit, Harmony, High Falls Reservoir, Eagle River, Crivitz, Clintonville, Townsend, Waupaca, Marshfield, Lakewood, Wausau, Lac Du Flambeau, Aurora, Oconto, Little Suamico, Porterfield, Middle Inlet, Loomis, Rhinelander, Tomahawk, Crandon, Plover, Redgranite, Commonwealth, Peshtigo, Merrill, Brookside, Wisconsin Rapids, Stevens Point, Shawano, Sobieski, Niagara, Pensaukee, Wautoma, and Wausaukee 204 PM CDT Wed May 12 2021 ...FROST ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM CDT THURSDAY... * WHAT...Temperatures from 32 to 37 will result in frost formation. Local freezing temperatures are expected in the typical cold spots of north central Wisconsin. * WHERE...Portions of central, north central, and northeast Wisconsin. * WHEN...From Midnight tonight to 8 AM CDT Thursday. * 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. && $$ For more information, visit us at http://www.weather.gov/GreenBay Kieckbusch
3 follow-up statements
689 WWUS73 KGRB 130315 NPWGRB URGENT - WEATHER MESSAGE National Weather Service Green Bay WI 1015 PM CDT Wed May 12 2021 WIZ005-010>013-018>021-030-031-035>037-045-073-074-131115- /O.CON.KGRB.FR.Y.0006.210513T0500Z-210513T1300Z/ Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln- Langlade-Menominee-Northern Oconto County-Marathon-Shawano-Wood- Portage-Waupaca-Waushara-Southern Marinette County-Southern Oconto County- Including the cities of Spread Eagle, New London, Keshena, Mountain, Antigo, Neopit, Harmony, High Falls Reservoir, Eagle River, Crivitz, Clintonville, Townsend, Waupaca, Marshfield, Lakewood, Wausau, Lac Du Flambeau, Aurora, Oconto, Little Suamico, Porterfield, Middle Inlet, Loomis, Rhinelander, Tomahawk, Crandon, Plover, Redgranite, Commonwealth, Peshtigo, Merrill, Brookside, Wisconsin Rapids, Stevens Point, Shawano, Sobieski, Niagara, Pensaukee, Wautoma, and Wausaukee 1015 PM CDT Wed May 12 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT THURSDAY... * WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Portions of central, north central, and northeast Wisconsin. * WHEN...Until 8 AM CDT Thursday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. $$ For more information, visit us at http://www.weather.gov/GreenBay RDM
509 WWUS73 KGRB 131005 NPWGRB URGENT - WEATHER MESSAGE National Weather Service Green Bay WI 505 AM CDT Thu May 13 2021 WIZ005-010>013-018>021-030-031-035>037-045-073-074-131300- /O.CON.KGRB.FR.Y.0006.000000T0000Z-210513T1300Z/ Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln- Langlade-Menominee-Northern Oconto County-Marathon-Shawano-Wood- Portage-Waupaca-Waushara-Southern Marinette County-Southern Oconto County- Including the cities of Spread Eagle, New London, Keshena, Mountain, Antigo, Neopit, Harmony, High Falls Reservoir, Eagle River, Crivitz, Clintonville, Townsend, Waupaca, Marshfield, Lakewood, Wausau, Lac Du Flambeau, Aurora, Oconto, Little Suamico, Porterfield, Middle Inlet, Loomis, Rhinelander, Tomahawk, Crandon, Plover, Redgranite, Commonwealth, Peshtigo, Merrill, Brookside, Wisconsin Rapids, Stevens Point, Shawano, Sobieski, Niagara, Pensaukee, Wautoma, and Wausaukee 505 AM CDT Thu May 13 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT THIS MORNING... * WHAT...Temperatures from 32 to 37 will result in frost formation. Local freezing temperatures are expected in the typical cold spots of north central Wisconsin. * WHERE...Portions of central, north central, and northeast Wisconsin. * WHEN...Until 8 AM CDT this morning. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. $$ For more information, visit us at http://www.weather.gov/GreenBay Cooley
398 WWUS73 KGRB 131234 NPWGRB URGENT - WEATHER MESSAGE National Weather Service Green Bay WI 734 AM CDT Thu May 13 2021 WIZ005-010>013-018>021-030-031-035>037-045-073-074-131345- /O.CAN.KGRB.FR.Y.0006.000000T0000Z-210513T1300Z/ Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln- Langlade-Menominee-Northern Oconto County-Marathon-Shawano-Wood- Portage-Waupaca-Waushara-Southern Marinette County-Southern Oconto County- Including the cities of Spread Eagle, New London, Keshena, Mountain, Antigo, Neopit, Harmony, High Falls Reservoir, Eagle River, Crivitz, Clintonville, Townsend, Waupaca, Marshfield, Lakewood, Wausau, Lac Du Flambeau, Aurora, Oconto, Little Suamico, Porterfield, Middle Inlet, Loomis, Rhinelander, Tomahawk, Crandon, Plover, Redgranite, Commonwealth, Peshtigo, Merrill, Brookside, Wisconsin Rapids, Stevens Point, Shawano, Sobieski, Niagara, Pensaukee, Wautoma, and Wausaukee 734 AM CDT Thu May 13 2021 ...FROST ADVISORY IS CANCELLED... Temperatures have warmed, so the threat of frost has ended. $$ For more information, visit us at http://www.weather.gov/GreenBay Kieckbusch
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.