Alert archive / Wisconsin / Frost Advisories in 2021
Frost Advisory 9, NWS Green Bay, WI
NWS Green Bay, WI issued this frost advisory at May 27, 2021, 2:53 PM CDT for 4 counties in Wisconsin. It took effect at May 28, 2021, 12:00 AM CDT. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- May 27, 2021, 2:53 PM CDT (19:53 UTC)
- In effect from
- May 28, 2021, 12:00 AM CDT
- Expired
- May 28, 2021, 7:00 AM CDT
- In force
- 7 hr
- Issued by
- NWS Green Bay, WI
Counties Florence County, WI, Forest County, WI, Oneida County, WI, Vilas County, WI
The radar
The Marquette radar (KMQT), 140 km from the middle of the area, began a volume at 19:54 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, 7.9 hours before the alert went out and 166 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
- 864 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- -107 m²/s²
- 0-3 km storm-relative helicity
- 14 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
768 WWUS73 KGRB 271953 NPWGRB URGENT - WEATHER MESSAGE National Weather Service Green Bay WI 253 PM CDT Thu May 27 2021 WIZ005-010>012-280400- /O.NEW.KGRB.FR.Y.0009.210528T0500Z-210528T1200Z/ Vilas-Oneida-Forest-Florence- Including the cities of Commonwealth, Spread Eagle, Rhinelander, Aurora, Crandon, Lac Du Flambeau, and Eagle River 253 PM CDT Thu May 27 2021 ...FROST ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 7 AM CDT FRIDAY... * WHAT...Temperatures as low as 30 will result in frost formation. * WHERE...Oneida, Vilas, Florence and Forest Counties. * WHEN...From Midnight tonight to 7 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. && $$ For more information, visit us at http://www.weather.gov/GreenBay Kurimski
2 follow-up statements
279 WWUS73 KGRB 280253 NPWGRB URGENT - WEATHER MESSAGE National Weather Service Green Bay WI 953 PM CDT Thu May 27 2021 WIZ005-010>012-281200- /O.CON.KGRB.FR.Y.0009.210528T0500Z-210528T1200Z/ Vilas-Oneida-Forest-Florence- Including the cities of Commonwealth, Spread Eagle, Rhinelander, Aurora, Crandon, Lac Du Flambeau, and Eagle River 953 PM CDT Thu May 27 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT FRIDAY... * WHAT...Temperatures dropping into the low 30s will pose a hazard to cold-sensitive plants. * WHERE...Oneida, Vilas, Florence and Forest Counties. * WHEN...Until 7 AM CDT Friday. * IMPACTS...The cold could harm sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Cold-sensitive outdoor plants should be covered or brought indoors. && $$ For more information, visit us at http://www.weather.gov/GreenBay
825 WWUS73 KGRB 281202 NPWGRB URGENT - WEATHER MESSAGE National Weather Service Green Bay WI 702 AM CDT Fri May 28 2021 WIZ005-010>012-281315- /O.EXP.KGRB.FR.Y.0009.000000T0000Z-210528T1200Z/ Vilas-Oneida-Forest-Florence- Including the cities of Commonwealth, Spread Eagle, Rhinelander, Aurora, Crandon, Lac Du Flambeau, and Eagle River 702 AM CDT Fri May 28 2021 ...FROST ADVISORY HAS EXPIRED... Temperatures have risen into the middle to upper 30s, therefore the Frost Advisory has been allowed to expire. Additional headlines are anticipated tonight with cold temperatures expected across the region. $$ 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 27, 3:20 AM CDT | Small Craft Advisory | GRB | 43 hr | |
| May 27, 4:37 AM CDT | Beach Hazards Statement | GRB | Door, Kewaunee, Manitowoc | 44 hr |
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.