Alert archive / Wisconsin / Frost Advisories in 2021
Frost Advisory 10, NWS La Crosse, WI
NWS La Crosse, WI issued this frost advisory at Oct 16, 2021, 1:31 PM CDT for 6 counties in Wisconsin. It took effect at Oct 17, 2021, 2:00 AM CDT. It was in force for 6 hr.
The area
The counties it named.
The facts
- Issued
- Oct 16, 2021, 1:31 PM CDT (18:31 UTC)
- In effect from
- Oct 17, 2021, 2:00 AM CDT
- Expired
- Oct 17, 2021, 8:00 AM CDT
- In force
- 6 hr
- Issued by
- NWS La Crosse, WI
Counties Adams County, WI, Clark County, WI, Jackson County, WI, Juneau County, WI, Monroe County, WI, Taylor County, WI
The radar
The La Crosse radar (KARX), 86 km from the middle of the area, began a volume at 18:32 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, 6.5 hours before the alert went out and 184 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
- 945 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 98 m²/s²
- 0-3 km storm-relative helicity
- 112 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
315 WWUS73 KARX 161831 NPWARX URGENT - WEATHER MESSAGE National Weather Service La Crosse WI 131 PM CDT Sat Oct 16 2021 WIZ017-029-034-042>044-171300- /O.NEW.KARX.FR.Y.0010.211017T0700Z-211017T1300Z/ Taylor-Clark-Jackson-Monroe-Juneau-Adams- Including the cities of Medford, Neillsville, Black River Falls, Sparta, Tomah, Mauston, and Friendship 131 PM CDT Sat Oct 16 2021 ...FROST ADVISORY IN EFFECT FROM 2 AM TO 8 AM CDT SUNDAY... * WHAT...Temperatures in the low to mid 30s will result in frost formation. * WHERE...Taylor, Clark, Jackson, Monroe, Juneau and Adams Counties. * WHEN...From 2 AM 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. && $$ JAR
1 follow-up statement
391 WWUS73 KARX 170710 NPWARX URGENT - WEATHER MESSAGE National Weather Service La Crosse WI 210 AM CDT Sun Oct 17 2021 WIZ017-029-034-042>044-171300- /O.CON.KARX.FR.Y.0010.000000T0000Z-211017T1300Z/ Taylor-Clark-Jackson-Monroe-Juneau-Adams- Including the cities of Medford, Neillsville, Black River Falls, Sparta, Tomah, Mauston, and Friendship 210 AM CDT Sun Oct 17 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT THIS MORNING... * WHAT...Temperatures in the low to mid 30s will result in frost formation. * WHERE...Monroe, Juneau, Adams, Jackson, Clark and Taylor Counties. * WHEN...Until 8 AM CDT this morning. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
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.