Alert archive / Minnesota / Frost Advisories in 2021
Frost Advisory 3, NWS Twin Cities, MN
NWS Twin Cities, MN issued this frost advisory at May 6, 2021, 3:21 PM CDT for 27 counties in Minnesota; 7 counties in Wisconsin. It took effect at May 7, 2021, 3:00 AM CDT. It was in force for 5 hr.
The area
The counties it named.
The facts
- Issued
- May 6, 2021, 3:21 PM CDT (20:21 UTC)
- In effect from
- May 7, 2021, 3:00 AM CDT
- Expired
- May 7, 2021, 8:00 AM CDT
- In force
- 5 hr
- Issued by
- NWS Twin Cities, MN
All 34 counties
Anoka County, MN, Benton County, MN, Brown County, MN, Chippewa County, MN, Chisago County, MN, Douglas County, MN, Isanti County, MN, Kanabec County, MN, Kandiyohi County, MN, Lac qui Parle County, MN, McLeod County, MN, Meeker County, MN, Mille Lacs County, MN, Morrison County, MN, Nicollet County, MN, Pope County, MN, Redwood County, MN, Renville County, MN, Sherburne County, MN, Sibley County, MN, Stearns County, MN, Stevens County, MN, Swift County, MN, Todd County, MN, Washington County, MN, Wright County, MN, Yellow Medicine County, MN, Barron County, WI, Chippewa County, WI, Dunn County, WI, Pierce County, WI, Polk County, WI, Rusk County, WI, Saint Croix County, WI
The radar
The Minneapolis radar (KMPX), 54 km from the middle of the area, began a volume at 20:23 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
Minneapolis, MN (KMPX), launched 12:00Z, 8.4 hours before the alert went out and 52 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
- 1249 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 59 m²/s²
- 0-3 km storm-relative helicity
- 131 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
390 WWUS73 KMPX 062021 NPWMPX URGENT - WEATHER MESSAGE National Weather Service Twin Cities/Chanhassen MN Issued by National Weather Service Duluth MN 321 PM CDT Thu May 6 2021 MNZ041>045-047>059-061-063>067-073>075-WIZ014>016-023>025-027- 070430- /O.NEW.KMPX.FR.Y.0003.210507T0800Z-210507T1300Z/ Douglas-Todd-Morrison-Mille Lacs-Kanabec-Stevens-Pope-Stearns- Benton-Sherburne-Isanti-Chisago-Lac Qui Parle-Swift-Chippewa- Kandiyohi-Meeker-Wright-Anoka-Washington-Yellow Medicine-Renville- McLeod-Sibley-Redwood-Brown-Nicollet-Polk-Barron-Rusk-St. Croix- Pierce-Dunn- Including the cities of Alexandria, Long Prairie, Little Falls, Princeton, Mora, Morris, Glenwood, St Cloud, Sauk Rapids, Elk River, Cambridge, Center City, Madison, Benson, Montevideo, Willmar, Litchfield, Monticello, Blaine, Stillwater, Granite Falls, Olivia, Hutchinson, Gaylord, Redwood Falls, New Ulm, St Peter, Osceola, Rice Lake, Ladysmith, Hudson, River Falls, Menomonie, and Chippewa Falls 321 PM CDT Thu May 6 2021 ...FROST ADVISORY IN EFFECT FROM 3 AM TO 8 AM CDT FRIDAY... * WHAT...Temperatures as low as 31 will result in frost formation. * WHERE...Portions of northwest and west central Wisconsin and central, east central, south central, southwest and west central Minnesota. * WHEN...From 3 AM to 8 AM CDT Friday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ BJH
2 follow-up statements
178 WWUS73 KMPX 070259 NPWMPX URGENT - WEATHER MESSAGE National Weather Service Twin Cities/Chanhassen MN 959 PM CDT Thu May 6 2021 MNZ041>045-047>059-061-063>067-073>075-WIZ014>016-023>025-027- 071300- /O.CON.KMPX.FR.Y.0003.210507T0800Z-210507T1300Z/ Douglas-Todd-Morrison-Mille Lacs-Kanabec-Stevens-Pope-Stearns- Benton-Sherburne-Isanti-Chisago-Lac Qui Parle-Swift-Chippewa- Kandiyohi-Meeker-Wright-Anoka-Washington-Yellow Medicine-Renville- McLeod-Sibley-Redwood-Brown-Nicollet-Polk-Barron-Rusk-St. Croix- Pierce-Dunn- Including the cities of Alexandria, Long Prairie, Little Falls, Princeton, Mora, Morris, Glenwood, St Cloud, Sauk Rapids, Elk River, Cambridge, Center City, Madison, Benson, Montevideo, Willmar, Litchfield, Monticello, Blaine, Stillwater, Granite Falls, Olivia, Hutchinson, Gaylord, Redwood Falls, New Ulm, St Peter, Osceola, Rice Lake, Ladysmith, Hudson, River Falls, Menomonie, and Chippewa Falls 959 PM CDT Thu May 6 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM 3 AM TO 8 AM CDT FRIDAY... * WHAT...Temperatures as low as 31 will result in frost formation. * WHERE...Portions of northwest and west central Wisconsin and central, east central, south central, southwest and west central Minnesota. * WHEN...From 3 AM to 8 AM CDT Friday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
192 WWUS73 KMPX 070827 NPWMPX URGENT - WEATHER MESSAGE National Weather Service Twin Cities/Chanhassen MN 327 AM CDT Fri May 7 2021 MNZ041>045-047>059-061-063>067-073>075-WIZ014>016-023>025-027- 071300- /O.CON.KMPX.FR.Y.0003.000000T0000Z-210507T1300Z/ Douglas-Todd-Morrison-Mille Lacs-Kanabec-Stevens-Pope-Stearns- Benton-Sherburne-Isanti-Chisago-Lac Qui Parle-Swift-Chippewa- Kandiyohi-Meeker-Wright-Anoka-Washington-Yellow Medicine-Renville- McLeod-Sibley-Redwood-Brown-Nicollet-Polk-Barron-Rusk-St. Croix- Pierce-Dunn- Including the cities of Alexandria, Long Prairie, Little Falls, Princeton, Mora, Morris, Glenwood, St Cloud, Sauk Rapids, Elk River, Cambridge, Center City, Madison, Benson, Montevideo, Willmar, Litchfield, Monticello, Blaine, Stillwater, Granite Falls, Olivia, Hutchinson, Gaylord, Redwood Falls, New Ulm, St Peter, Osceola, Rice Lake, Ladysmith, Hudson, River Falls, Menomonie, and Chippewa Falls 327 AM CDT Fri May 7 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT THIS MORNING... * WHAT...Temperatures as low as 31 will result in frost formation. * WHERE...Portions of northwest and west central Wisconsin and central, east central, south central, southwest and west central Minnesota. * 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. && $$
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 6, 3:13 AM CDT | Red Flag Warning | MPX | Benton, Chippewa, Douglas, Isanti, Kanabec, Kandiyohi and 14 more | 17 hr |
Nearby
Frost Advisories in Minnesota, 2021Frost 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.