Alert archive / Minnesota / Frost Advisories in 2021
Frost Advisory 1, NWS Grand Forks, ND
NWS Grand Forks, ND issued this frost advisory at May 26, 2021, 3:50 AM CDT for 8 counties in North Dakota; 9 counties in Minnesota. It took effect at May 27, 2021, 1:00 AM CDT. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- May 26, 2021, 3:50 AM CDT (08:50 UTC)
- In effect from
- May 27, 2021, 1:00 AM CDT
- Expired
- May 27, 2021, 8:00 AM CDT
- In force
- 7 hr
- Issued by
- NWS Grand Forks, ND
Counties Beltrami County, MN, Clearwater County, MN, Kittson County, MN, Lake of the Woods County, MN, Marshall County, MN, Pennington County, MN, Polk County, MN, Red Lake County, MN, Roseau County, MN, Benson County, ND, Cavalier County, ND, Grand Forks County, ND, Nelson County, ND, Pembina County, ND, Ramsey County, ND, Towner County, ND, Walsh County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 86 km from the middle of the area, began a volume at 08:48 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
International Fa, MN (KINL), launched 00:00Z, 8.8 hours before the alert went out and 277 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
- 10 J/kg
- Mixed-layer CIN
- -25 J/kg
- Mixed-layer LCL
- 2030 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 97 m²/s²
- 0-3 km storm-relative helicity
- 131 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
973 WWUS73 KFGF 260850 NPWFGF URGENT - WEATHER MESSAGE National Weather Service Grand Forks ND 350 AM CDT Wed May 26 2021 MNZ004>009-NDZ006>008-015-016-054-271300- /O.NEW.KFGF.FR.Y.0001.210527T0600Z-210527T1300Z/ Kittson-Roseau-Lake Of The Woods-West Marshall-East Marshall- North Beltrami-Towner-Cavalier-Pembina-Ramsey-Eastern Walsh- Western Walsh- Including the cities of Hallock, Karlstad, Lancaster, Roseau, Warroad, Greenbush, Baudette, Warren, Stephen, Argyle, Newfolden, Middle River, Grygla, Red Lake, Redby, Ponemah, Cando, Langdon, Cavalier, Walhalla, Drayton, Pembina, Neche, St. Thomas, Devils Lake, Grafton, Park River, Edinburg, Adams, and Lankin 350 AM CDT Wed May 26 2021 ...FROST ADVISORY IN EFFECT FROM 1 AM TO 8 AM CDT THURSDAY... * WHAT...Temperatures as low as 29 will result in frost formation. * WHERE...Portions of north central and northwest Minnesota and northeast North Dakota. * WHEN...From 1 AM to 8 AM CDT Thursday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
4 follow-up statements
407 WWUS73 KFGF 261959 NPWFGF URGENT - WEATHER MESSAGE National Weather Service Grand Forks ND 259 PM CDT Wed May 26 2021 MNZ004>006-NDZ006>008-271300- /O.UPG.KFGF.FR.Y.0001.210527T0600Z-210527T1300Z/ /O.NEW.KFGF.FZ.W.0001.210527T0600Z-210527T1300Z/ Kittson-Roseau-Lake Of The Woods-Towner-Cavalier-Pembina- Including the cities of Hallock, Karlstad, Lancaster, Roseau, Warroad, Greenbush, Baudette, Cando, Langdon, Cavalier, Walhalla, Drayton, Pembina, Neche, and St. Thomas 259 PM CDT Wed May 26 2021 ...FREEZE WARNING IN EFFECT FROM 1 AM TO 8 AM CDT THURSDAY... * WHAT...Sub-freezing temperatures as low as 29 expected. * WHERE...In Minnesota, Kittson, Roseau and Lake Of The Woods Counties. In North Dakota, Towner, Cavalier and Pembina Counties. * WHEN...From 1 AM to 8 AM CDT Thursday. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS...Cold temperatures are possible again Thursday night. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ MNZ001-013>017-NDZ014-026-027-271300- /O.EXA.KFGF.FR.Y.0001.210527T0600Z-210527T1300Z/ West Polk-Pennington-Red Lake-East Polk-North Clearwater- South Beltrami-Benson-Nelson-Grand Forks- Including the cities of Crookston, East Grand Forks, Thief River Falls, Red Lake Falls, Fosston, Fertile, McIntosh, Erskine, Bagley, Clearbrook, Bemidji, Fort Totten, Maddock, Leeds, Minnewaukan, Lakota, Mcville, Aneta, Tolna, and Grand Forks 259 PM CDT Wed May 26 2021 ...FROST ADVISORY IN EFFECT FROM 1 AM TO 8 AM CDT THURSDAY... * WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...In Minnesota, West Polk, Pennington, Red Lake, East Polk, North Clearwater and South Beltrami Counties. In North Dakota, Benson, Nelson and Grand Forks Counties. * WHEN...From 1 AM to 8 AM CDT Thursday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. * ADDITIONAL DETAILS...Cold temperatures are possible again Thursday night. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ MNZ007>009-NDZ015-016-054-271300- /O.CON.KFGF.FR.Y.0001.210527T0600Z-210527T1300Z/ West Marshall-East Marshall-North Beltrami-Ramsey-Eastern Walsh- Western Walsh- Including the cities of Warren, Stephen, Argyle, Newfolden, Middle River, Grygla, Red Lake, Redby, Ponemah, Devils Lake, Grafton, Park River, Edinburg, Adams, and Lankin 259 PM CDT Wed May 26 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 8 AM CDT THURSDAY... * WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...In Minnesota, North Beltrami, East Marshall and West Marshall Counties. In North Dakota, Ramsey, Eastern Walsh and Western Walsh Counties. * WHEN...From 1 AM to 8 AM CDT Thursday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. * ADDITIONAL DETAILS...Cold temperatures are possible again Thursday night. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
280 WWUS73 KFGF 270247 NPWFGF URGENT - WEATHER MESSAGE National Weather Service Grand Forks ND 947 PM CDT Wed May 26 2021 MNZ004>006-NDZ006>008-271300- /O.CON.KFGF.FZ.W.0001.210527T0600Z-210527T1300Z/ Kittson-Roseau-Lake Of The Woods-Towner-Cavalier-Pembina- Including the cities of Hallock, Karlstad, Lancaster, Roseau, Warroad, Greenbush, Baudette, Cando, Langdon, Cavalier, Walhalla, Drayton, Pembina, Neche, and St. Thomas 947 PM CDT Wed May 26 2021 ...FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 8 AM CDT THURSDAY... * WHAT...Sub-freezing temperatures as low as 29 expected. * WHERE...In North Dakota, Towner, Cavalier and Pembina Counties. In Minnesota, Lake Of The Woods, Roseau and Kittson Counties. * WHEN...From 1 AM to 8 AM CDT Thursday. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS...Cold temperatures are possible again Thursday night. 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. && $$ MNZ001-007>009-013>017-NDZ014>016-026-027-054-271300- /O.CON.KFGF.FR.Y.0001.210527T0600Z-210527T1300Z/ West Polk-West Marshall-East Marshall-North Beltrami-Pennington- Red Lake-East Polk-North Clearwater-South Beltrami-Benson-Ramsey- Eastern Walsh-Nelson-Grand Forks-Western Walsh- Including the cities of Crookston, East Grand Forks, Warren, Stephen, Argyle, Newfolden, Middle River, Grygla, Red Lake, Redby, Ponemah, Thief River Falls, Red Lake Falls, Fosston, Fertile, McIntosh, Erskine, Bagley, Clearbrook, Bemidji, Fort Totten, Maddock, Leeds, Minnewaukan, Devils Lake, Grafton, Park River, Lakota, Mcville, Aneta, Tolna, Grand Forks, Edinburg, Adams, and Lankin 947 PM CDT Wed May 26 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 8 AM CDT THURSDAY... * WHAT...Temperatures as low as 31 will result in frost formation. * WHERE...Portions of north central and northwest Minnesota and northeast North Dakota. * WHEN...From 1 AM to 8 AM CDT Thursday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. * ADDITIONAL DETAILS...Cold temperatures are possible again Thursday night. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
801 WWUS73 KFGF 270856 NPWFGF URGENT - WEATHER MESSAGE National Weather Service Grand Forks ND 356 AM CDT Thu May 27 2021 MNZ004>006-NDZ006>008-281300- /O.NEW.KFGF.FZ.A.0001.210528T0600Z-210528T1300Z/ /O.CON.KFGF.FZ.W.0001.000000T0000Z-210527T1300Z/ Kittson-Roseau-Lake Of The Woods-Towner-Cavalier-Pembina- Including the cities of Hallock, Karlstad, Lancaster, Roseau, Warroad, Greenbush, Baudette, Cando, Langdon, Cavalier, Walhalla, Drayton, Pembina, Neche, and St. Thomas 356 AM CDT Thu May 27 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 8 AM CDT THIS MORNING... ...FREEZE WATCH IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY MORNING... * WHAT...For the Freeze Warning, sub-freezing temperatures as low as 29. For the Freeze Watch, sub-freezing temperatures as low as 29 possible. * WHERE...In Minnesota, Kittson, Roseau and Lake Of The Woods Counties. In North Dakota, Towner, Cavalier and Pembina Counties. * WHEN...For the Freeze Warning, until 8 AM CDT this morning. For the Freeze Watch, from late tonight through Friday morning. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. 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. && $$ MNZ001-007>009-013>017-NDZ014>016-026-027-054-281300- /O.NEW.KFGF.FZ.A.0001.210528T0600Z-210528T1300Z/ /O.CON.KFGF.FR.Y.0001.000000T0000Z-210527T1300Z/ West Polk-West Marshall-East Marshall-North Beltrami-Pennington- Red Lake-East Polk-North Clearwater-South Beltrami-Benson-Ramsey- Eastern Walsh-Nelson-Grand Forks-Western Walsh- Including the cities of Crookston, East Grand Forks, Warren, Stephen, Argyle, Newfolden, Middle River, Grygla, Red Lake, Redby, Ponemah, Thief River Falls, Red Lake Falls, Fosston, Fertile, McIntosh, Erskine, Bagley, Clearbrook, Bemidji, Fort Totten, Maddock, Leeds, Minnewaukan, Devils Lake, Grafton, Park River, Lakota, Mcville, Aneta, Tolna, Grand Forks, Edinburg, Adams, and Lankin 356 AM CDT Thu May 27 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT THIS MORNING... ...FREEZE WATCH IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY MORNING... * WHAT...For the Frost Advisory, temperatures as low as 31 will result in frost formation. For the Freeze Watch, sub-freezing temperatures as low as 29 possible. * WHERE...Portions of north central and northwest Minnesota and northeast North Dakota. * WHEN...For the Frost Advisory, until 8 AM CDT this morning. For the Freeze Watch, from late tonight through Friday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ MNZ002-003-022>024-027>032-040-NDZ024-028>030-038-039-049-052-053- 281300- /O.NEW.KFGF.FZ.A.0001.210528T0600Z-210528T1300Z/ Norman-Clay-Mahnomen-South Clearwater-Hubbard-West Becker- East Becker-Wilkin-West Otter Tail-East Otter Tail-Wadena-Grant- Eddy-Griggs-Steele-Traill-Barnes-Cass-Ransom-Sargent-Richland- Including the cities of Ada, Twin Valley, Halstad, Moorhead, Mahnomen, Naytahwaush, Waubun, Alida, Ebro, Lake Itasca, Long Lost Lake, Lower Rice Lake, Roy Lake, Upper Rice Lake, Park Rapids, Detroit Lakes, Wolf Lake, Breckenridge, Fergus Falls, Perham, New York Mills, Parkers Prairie, Henning, Battle Lake, Wadena, Menahga, Elbow Lake, Hoffman, Ashby, Herman, Barrett, New Rockford, Cooperstown, Finley, Hope, Mayville, Hillsboro, Hatton, Portland, Valley City, Fargo, Lisbon, Enderlin, Gwinner, Milnor, Forman, Rutland, and Wahpeton 356 AM CDT Thu May 27 2021 ...FREEZE WATCH IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY MORNING... * WHAT...Sub-freezing temperatures as low as 30 possible. * WHERE...Portions of central, north central, northwest and west central Minnesota and northeast and southeast North Dakota. * WHEN...From late tonight through Friday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. 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. && $$
919 WWUS73 KFGF 271248 NPWFGF URGENT - WEATHER MESSAGE National Weather Service Grand Forks ND 748 AM CDT Thu May 27 2021 MNZ004>006-NDZ006>008-281300- /O.EXP.KFGF.FZ.W.0001.000000T0000Z-210527T1300Z/ /O.CON.KFGF.FZ.A.0001.210528T0600Z-210528T1300Z/ Kittson-Roseau-Lake Of The Woods-Towner-Cavalier-Pembina- Including the cities of Hallock, Karlstad, Lancaster, Roseau, Warroad, Greenbush, Baudette, Cando, Langdon, Cavalier, Walhalla, Drayton, Pembina, Neche, and St. Thomas 748 AM CDT Thu May 27 2021 ...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY MORNING... ...FREEZE WARNING WILL EXPIRE AT 8 AM CDT THIS MORNING... * WHAT...Sub-freezing temperatures as low as 29 possible. * WHERE...In Minnesota, Lake Of The Woods, Roseau and Kittson Counties. In North Dakota, Towner, Cavalier and Pembina Counties. * WHEN...From late tonight through Friday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ MNZ001-007>009-013>017-NDZ014>016-026-027-054-281300- /O.EXP.KFGF.FR.Y.0001.000000T0000Z-210527T1300Z/ /O.CON.KFGF.FZ.A.0001.210528T0600Z-210528T1300Z/ West Polk-West Marshall-East Marshall-North Beltrami-Pennington- Red Lake-East Polk-North Clearwater-South Beltrami-Benson-Ramsey- Eastern Walsh-Nelson-Grand Forks-Western Walsh- Including the cities of Crookston, East Grand Forks, Warren, Stephen, Argyle, Newfolden, Middle River, Grygla, Red Lake, Redby, Ponemah, Thief River Falls, Red Lake Falls, Fosston, Fertile, McIntosh, Erskine, Bagley, Clearbrook, Bemidji, Fort Totten, Maddock, Leeds, Minnewaukan, Devils Lake, Grafton, Park River, Lakota, Mcville, Aneta, Tolna, Grand Forks, Edinburg, Adams, and Lankin 748 AM CDT Thu May 27 2021 ...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY MORNING... ...FROST ADVISORY WILL EXPIRE AT 8 AM CDT THIS MORNING... * WHAT...Sub-freezing temperatures as low as 29 possible. * WHERE...Portions of north central and northwest Minnesota and northeast North Dakota. * WHEN...From late tonight through Friday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. 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. && $$ MNZ002-003-022>024-027>032-040-NDZ024-028>030-038-039-049-052-053- 281300- /O.CON.KFGF.FZ.A.0001.210528T0600Z-210528T1300Z/ Norman-Clay-Mahnomen-South Clearwater-Hubbard-West Becker- East Becker-Wilkin-West Otter Tail-East Otter Tail-Wadena-Grant- Eddy-Griggs-Steele-Traill-Barnes-Cass-Ransom-Sargent-Richland- Including the cities of Ada, Twin Valley, Halstad, Moorhead, Mahnomen, Naytahwaush, Waubun, Alida, Ebro, Lake Itasca, Long Lost Lake, Lower Rice Lake, Roy Lake, Upper Rice Lake, Park Rapids, Detroit Lakes, Wolf Lake, Breckenridge, Fergus Falls, Perham, New York Mills, Parkers Prairie, Henning, Battle Lake, Wadena, Menahga, Elbow Lake, Hoffman, Ashby, Herman, Barrett, New Rockford, Cooperstown, Finley, Hope, Mayville, Hillsboro, Hatton, Portland, Valley City, Fargo, Lisbon, Enderlin, Gwinner, Milnor, Forman, Rutland, and Wahpeton 748 AM CDT Thu May 27 2021 ...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY MORNING... * WHAT...Sub-freezing temperatures as low as 31 possible. * WHERE...Portions of central, north central, northwest and west central Minnesota and northeast and southeast North Dakota. * WHEN...From late tonight through Friday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 26, 2:59 PM CDT | Freeze Warning | FGF | Cavalier, Pembina, Towner | 17 hr |
Nearby
Frost Advisories in Minnesota, 2021Frost Advisories in North Dakota, 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.