Alert archive / Wisconsin / Freeze Warnings in 2021
Freeze Warning 2, NWS Green Bay, WI
NWS Green Bay, WI issued this freeze warning at May 8, 2021, 3:01 PM CDT for 8 counties in Wisconsin. It took effect at May 9, 2021, 12:00 AM CDT. It was in force for 8 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- May 8, 2021, 3:01 PM CDT (20:01 UTC)
- In effect from
- May 9, 2021, 12:00 AM CDT
- Expired
- May 9, 2021, 8:00 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, Marinette County, WI, Oconto County, WI, Oneida County, WI, Vilas County, WI
The radar
The Green Bay radar (KGRB), 130 km from the middle of the area, began a volume at 20:01 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, 8.0 hours before the alert went out and 133 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
- 1416 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- -7 m²/s²
- 0-3 km storm-relative helicity
- -12 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
807 WWUS73 KGRB 082001 NPWGRB URGENT - WEATHER MESSAGE National Weather Service Green Bay WI 301 PM CDT Sat May 8 2021 WIZ005-010>013-018-019-021-073-090400- /O.NEW.KGRB.FZ.W.0002.210509T0500Z-210509T1300Z/ Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln- Langlade-Northern Oconto County-Southern Marinette County- Including the cities of Eagle River, Lac Du Flambeau, Rhinelander, Crandon, Aurora, Commonwealth, Spread Eagle, Niagara, Wausaukee, Merrill, Tomahawk, Antigo, Mountain, Lakewood, Townsend, Harmony, Peshtigo, Porterfield, Crivitz, High Falls Reservoir, Loomis, and Middle Inlet 301 PM CDT Sat May 8 2021 ...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM CDT SUNDAY... * WHAT...Sub-freezing temperatures as low as 28 degrees and widespread frost. * WHERE...Vilas, Oneida, Forest, Florence, Northern Marinette County, Lincoln, Langlade, Northern Oconto County and Southern Marinette County Counties. * WHEN...From midnight tonight to 8 AM CDT Sunday. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ WIZ020-022-030-031-074-090400- /O.NEW.KGRB.FR.Y.0002.210509T0500Z-210509T1300Z/ Menominee-Door-Marathon-Shawano-Southern Oconto County- Including the cities of Keshena, Neopit, Sturgeon Bay, Fish Creek, Sister Bay, Wausau, Shawano, Little Suamico, Sobieski, Brookside, Oconto, and Pensaukee 301 PM CDT Sat May 8 2021 ...FROST ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM CDT SUNDAY... * WHAT...Temperatures as low as 34 degrees and possible frost formation. * WHERE...Menominee, Door, Marathon, Shawano and Southern Oconto County Counties. * WHEN...From midnight tonight to 8 AM CDT Sunday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
4 follow-up statements
005 WWUS73 KGRB 090340 NPWGRB URGENT - WEATHER MESSAGE National Weather Service Green Bay WI 1040 PM CDT Sat May 8 2021 WIZ005-010>013-018-019-021-073-091145- /O.CON.KGRB.FZ.W.0002.210509T0500Z-210509T1300Z/ Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln- Langlade-Northern Oconto County-Southern Marinette County- Including the cities of Spread Eagle, Mountain, Antigo, Harmony, Eagle River, Crivitz, Townsend, Lakewood, Lac Du Flambeau, Aurora, Porterfield, Middle Inlet, Loomis, Rhinelander, Tomahawk, Crandon, High Falls Reservoir, Commonwealth, Peshtigo, Merrill, Niagara, and Wausaukee 1040 PM CDT Sat May 8 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 8 AM CDT SUNDAY... * WHAT...Sub-freezing temperatures as low as 28 expected. * WHERE...Langlade, Lincoln, Oneida, Vilas, Florence, Forest, Northern Marinette County, Northern Oconto County and Southern Marinette County Counties. * WHEN...Until 8 AM CDT Sunday. * ADDITIONAL DETAILS...Low temperatures may vary quite a bit due to cloud cover in some areas. $$ WIZ020-022-030-031-074-091145- /O.CON.KGRB.FR.Y.0002.210509T0500Z-210509T1300Z/ Menominee-Door-Marathon-Shawano-Southern Oconto County- Including the cities of Shawano, Keshena, Wausau, Brookside, Sister Bay, Oconto, Little Suamico, Fish Creek, Sobieski, Neopit, Pensaukee, and Sturgeon Bay 1040 PM CDT Sat May 8 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT SUNDAY... * WHAT...Temperatures as low as 32 will result in frost formation. * WHERE...Marathon, Door, Menominee, Shawano and Southern Oconto County Counties. * WHEN...Until 8 AM CDT Sunday. * ADDITIONAL DETAILS...Low temperatures and frost formation will vary depending on cloud cover. $$ For more information, visit us at http://www.weather.gov/GreenBay RDM
619 WWUS73 KGRB 090824 NPWGRB URGENT - WEATHER MESSAGE National Weather Service Green Bay WI 324 AM CDT Sun May 9 2021 WIZ005-010>013-018-019-021-073-091300- /O.CON.KGRB.FZ.W.0002.000000T0000Z-210509T1300Z/ Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln- Langlade-Northern Oconto County-Southern Marinette County- Including the cities of Eagle River, Lac Du Flambeau, Rhinelander, Crandon, Aurora, Commonwealth, Spread Eagle, Niagara, Wausaukee, Merrill, Tomahawk, Antigo, Mountain, Lakewood, Townsend, Harmony, Peshtigo, Porterfield, Crivitz, High Falls Reservoir, Loomis, and Middle Inlet 324 AM CDT Sun May 9 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 8 AM CDT THIS MORNING... * WHAT...Sub-freezing temperatures and widespread frost. * WHERE...Langlade, Southern Marinette County, Vilas, Northern Oconto County, Lincoln, Northern Marinette County, Florence, Forest and Oneida Counties. * WHEN...Until 8 AM CDT this morning. * IMPACTS...Frost and freeze conditions could severely injure or kill cold-sensitive plants. * ADDITIONAL DETAILS...Cold temperatures are expected again tonight, leading to another round of frost and freezing conditions. Be sure to monitor later forecasts for the issuance of a Frost Advisory or Freeze Warning for tonight. PRECAUTIONARY/PREPAREDNESS ACTIONS... Tender plants should not be uncovered or placed back outside until late morning. Plan on protecting them again to night to ensure their survival. && $$ WIZ020-022-030-031-074-091300- /O.CON.KGRB.FR.Y.0002.000000T0000Z-210509T1300Z/ Menominee-Door-Marathon-Shawano-Southern Oconto County- Including the cities of Keshena, Neopit, Sturgeon Bay, Fish Creek, Sister Bay, Wausau, Shawano, Little Suamico, Sobieski, Brookside, Oconto, and Pensaukee 324 AM CDT Sun May 9 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT THIS MORNING... * WHAT...Cold temperatures will result in frost formation. * WHERE...Door, Southern Oconto County, Shawano, Marathon and Menominee Counties. * WHEN...Until 8 AM CDT this morning. * IMPACTS...The frost could injure cold-sensitive plants. * ADDITIONAL DETAILS...Cold temperatures are expected again tonight, leading to another round of frost and possibly freezing conditions. Be sure to monitor later forecasts for the issuance of a Frost Advisory or Freeze Warning for tonight. PRECAUTIONARY/PREPAREDNESS ACTIONS... Tender plants should not be uncovered or placed back outside until late morning. Plan on protecting them again to night to ensure their survival. && $$ Skowronski
307 WWUS73 KGRB 091139 NPWGRB URGENT - WEATHER MESSAGE National Weather Service Green Bay WI 639 AM CDT Sun May 9 2021 WIZ005-010>013-018-019-021-073-091300- /O.CON.KGRB.FZ.W.0002.000000T0000Z-210509T1300Z/ Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln- Langlade-Northern Oconto County-Southern Marinette County- Including the cities of Eagle River, Lac Du Flambeau, Rhinelander, Crandon, Aurora, Commonwealth, Spread Eagle, Niagara, Wausaukee, Merrill, Tomahawk, Antigo, Mountain, Lakewood, Townsend, Harmony, Peshtigo, Porterfield, Crivitz, High Falls Reservoir, Loomis, and Middle Inlet 639 AM CDT Sun May 9 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 8 AM CDT THIS MORNING... * WHAT...Cold temperatures and widespread frost. * WHERE...Langlade, Southern Marinette County, Vilas, Northern Oconto County, Lincoln, Northern Marinette County, Florence, Forest and Oneida Counties. * WHEN...Until 8 AM CDT this morning. * IMPACTS...The cold temperatures could injure or kill cold- sensitive plants. * ADDITIONAL DETAILS...Cold temperatures are expected again tonight, leading to another round of frost and freezing conditions. Be sure to monitor later forecasts for the issuance of a Frost Advisory or Freeze Warning for tonight. PRECAUTIONARY/PREPAREDNESS ACTIONS... Tender plants should not be uncovered or placed back outside until late morning. Plan on protecting them again to night to ensure their survival. && $$ WIZ020-022-030-031-074-091300- /O.CON.KGRB.FR.Y.0002.000000T0000Z-210509T1300Z/ Menominee-Door-Marathon-Shawano-Southern Oconto County- Including the cities of Keshena, Neopit, Sturgeon Bay, Fish Creek, Sister Bay, Wausau, Shawano, Little Suamico, Sobieski, Brookside, Oconto, and Pensaukee 639 AM CDT Sun May 9 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT THIS MORNING... * WHAT...Cold temperatures and frost. * WHERE...Door, Southern Oconto County, Shawano, Marathon and Menominee Counties. * WHEN...Until 8 AM CDT this morning. * IMPACTS...The frost could injure cold-sensitive plants. * ADDITIONAL DETAILS...Cold temperatures are expected again tonight, leading to another round of frost and possibly freezing conditions. Be sure to monitor later forecasts for the issuance of a Frost Advisory or Freeze Warning for tonight. PRECAUTIONARY/PREPAREDNESS ACTIONS... Tender plants should not be uncovered or placed back outside until late morning. Plan on protecting them again to night to ensure their survival. && $$ Skowronski
866 WWUS73 KGRB 091248 NPWGRB URGENT - WEATHER MESSAGE National Weather Service Green Bay WI 748 AM CDT Sun May 9 2021 WIZ005-010>013-018-019-021-073-091400- /O.EXP.KGRB.FZ.W.0002.000000T0000Z-210509T1300Z/ /00000.0.UU.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln- Langlade-Northern Oconto County-Southern Marinette County- Including the cities of Spread Eagle, Mountain, Antigo, Harmony, Eagle River, Crivitz, Townsend, Lakewood, Lac Du Flambeau, Aurora, Porterfield, Middle Inlet, Loomis, Rhinelander, Tomahawk, Crandon, High Falls Reservoir, Commonwealth, Peshtigo, Merrill, Niagara, and Wausaukee 748 AM CDT Sun May 9 2021 ...FREEZE WARNING WILL EXPIRE AT 8 AM CDT THIS MORNING... Temperatures are rising above freezing and lingering frost will dissipate quickly. $$ WIZ020-022-030-031-074-091400- /O.EXP.KGRB.FR.Y.0002.000000T0000Z-210509T1300Z/ /00000.0.UU.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Menominee-Door-Marathon-Shawano-Southern Oconto County- Including the cities of Shawano, Keshena, Wausau, Brookside, Sister Bay, Oconto, Little Suamico, Fish Creek, Sobieski, Neopit, Pensaukee, and Sturgeon Bay 748 AM CDT Sun May 9 2021 ...FROST ADVISORY WILL EXPIRE AT 8 AM CDT THIS MORNING... Temperatures are rising above freezing and lingering frost will dissipate quickly. $$ For more information, visit us at http://www.weather.gov/GreenBay Kurimski
The office that day
Everything else NWS Green Bay, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 8, 3:01 PM CDT | Frost Advisory | GRB | Door, Marathon, Menominee, Oconto, Shawano | 17 hr |
Nearby
Freeze Warnings in Wisconsin, 2021Every freeze warning 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.