Alert archive / Minnesota / Frost Advisories in 2026
Frost Advisory 8, NWS Twin Cities, MN
NWS Twin Cities, MN issued this frost advisory at May 19, 2026, 12:23 PM CDT for 25 counties in Minnesota; Barron County, Polk County, Rusk County, Wisconsin. It took effect at May 20, 2026, 1:00 AM CDT. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- May 19, 2026, 12:23 PM CDT (17:23 UTC)
- In effect from
- May 20, 2026, 1:00 AM CDT
- Expired
- May 20, 2026, 8:00 AM CDT
- In force
- 7 hr
- Issued by
- NWS Twin Cities, MN
All 28 counties
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, Wright County, MN, Yellow Medicine County, MN, Barron County, WI, Polk County, WI, Rusk County, WI
The radar
The Minneapolis radar (KMPX), 77 km from the middle of the area, began a volume at 17:28 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, 5.4 hours before the alert went out and 75 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
- 685 m above ground
- 0-6 km bulk shear
- 66 kt
- 0-1 km storm-relative helicity
- -118 m²/s²
- 0-3 km storm-relative helicity
- -56 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
222 WWUS73 KMPX 191723 NPWMPX URGENT - WEATHER MESSAGE National Weather Service Twin Cities/Chanhassen MN 1223 PM CDT Tue May 19 2026 MNZ041>045-047>059-064>067-073>075-201100- /O.NEW.KMPX.FR.Y.0008.260520T0600Z-260520T1300Z/ Douglas-Todd-Morrison-Mille Lacs-Kanabec-Stevens-Pope-Stearns- Benton-Sherburne-Isanti-Chisago-Lac Qui Parle-Swift-Chippewa- Kandiyohi-Meeker-Wright-Yellow Medicine-Renville-McLeod-Sibley- Redwood-Brown-Nicollet- Including the cities of Willmar, Benson, Elk River, Hutchinson, Morris, Sauk Rapids, Glenwood, Alexandria, Madison, Granite Falls, Montevideo, Center City, Redwood Falls, Long Prairie, Olivia, St Cloud, Litchfield, New Ulm, Mora, St Peter, Little Falls, Princeton, Gaylord, Cambridge, and Monticello 1223 PM CDT Tue May 19 2026 ...FROST ADVISORY IN EFFECT FROM 1 AM TO 8 AM CDT WEDNESDAY... * WHAT...Temperatures as low as 32 will result in frost formation. * WHERE...Portions of central, east central, south central, southwest, and west central Minnesota. * WHEN...From 1 AM to 8 AM CDT Wednesday. * 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. && $$ BPH
2 follow-up statements
208 WWUS73 KMPX 192225 NPWMPX URGENT - WEATHER MESSAGE National Weather Service Twin Cities/Chanhassen MN 525 PM CDT Tue May 19 2026 WIZ014>016-201030- /O.EXA.KMPX.FR.Y.0008.260520T0600Z-260520T1300Z/ Polk-Barron-Rusk- Including the cities of Rice Lake, Ladysmith, and Osceola 525 PM CDT Tue May 19 2026 ...FROST ADVISORY IN EFFECT FROM 1 AM TO 8 AM CDT WEDNESDAY... * WHAT...Temperatures as low as 34 will result in frost formation. * WHERE...Barron, Polk, and Rusk Counties. * WHEN...From 1 AM to 8 AM CDT Wednesday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ MNZ041>045-047>059-064>067-073>075-201030- /O.CON.KMPX.FR.Y.0008.260520T0600Z-260520T1300Z/ Douglas-Todd-Morrison-Mille Lacs-Kanabec-Stevens-Pope-Stearns- Benton-Sherburne-Isanti-Chisago-Lac Qui Parle-Swift-Chippewa- Kandiyohi-Meeker-Wright-Yellow Medicine-Renville-McLeod-Sibley- Redwood-Brown-Nicollet- Including the cities of Granite Falls, Morris, Montevideo, St Peter, Madison, Elk River, Center City, Sauk Rapids, Willmar, Mora, Little Falls, St Cloud, Monticello, Long Prairie, Olivia, Gaylord, Alexandria, Litchfield, Benson, Princeton, Redwood Falls, Hutchinson, Glenwood, Cambridge, and New Ulm 525 PM CDT Tue May 19 2026 ...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 8 AM CDT WEDNESDAY... * WHAT...Temperatures as low as 32 will result in frost formation. * WHERE...Portions of central, east central, south central, southwest, and west central Minnesota. * WHEN...From 1 AM to 8 AM CDT Wednesday. * 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. && $$ NDC
235 WWUS73 KMPX 201316 NPWMPX URGENT - WEATHER MESSAGE National Weather Service Twin Cities/Chanhassen MN 816 AM CDT Wed May 20 2026 MNZ041>045-047>059-064>067-073>075-WIZ014>016-201430- /O.EXP.KMPX.FR.Y.0008.000000T0000Z-260520T1300Z/ Douglas-Todd-Morrison-Mille Lacs-Kanabec-Stevens-Pope-Stearns- Benton-Sherburne-Isanti-Chisago-Lac Qui Parle-Swift-Chippewa- Kandiyohi-Meeker-Wright-Yellow Medicine-Renville-McLeod-Sibley- Redwood-Brown-Nicollet-Polk-Barron-Rusk- Including the cities of Morris, Olivia, Mora, St Cloud, Elk River, Glenwood, Benson, Osceola, Willmar, Princeton, Center City, Sauk Rapids, Gaylord, St Peter, New Ulm, Monticello, Alexandria, Litchfield, Little Falls, Redwood Falls, Montevideo, Hutchinson, Long Prairie, Ladysmith, Granite Falls, Cambridge, Rice Lake, and Madison 816 AM CDT Wed May 20 2026 ...FROST ADVISORY HAS EXPIRED... The threat has ended. $$ BPH
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 18, 9:06 PM CDT | Special Weather Statement | MPX | Chippewa, Dunn, Eau Claire, Pepin, Rusk | 84 min |
Nearby
Frost Advisories in Minnesota, 2026Frost Advisories in Wisconsin, 2026Every frost advisory in 2026
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.