Alert archive / North Dakota / Frost Advisories in 2021
Frost Advisory 3, NWS Grand Forks, ND
NWS Grand Forks, ND issued this frost advisory at Sep 24, 2021, 2:44 PM CDT for 5 counties in North Dakota. It took effect at Sep 25, 2021, 4:00 AM CDT. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Sep 24, 2021, 2:44 PM CDT (19:44 UTC)
- In effect from
- Sep 25, 2021, 4:00 AM CDT
- Expired
- Sep 25, 2021, 7:42 AM CDT
- In force
- 4 hr
- Issued by
- NWS Grand Forks, ND
Counties Barnes County, ND, Eddy County, ND, Griggs County, ND, Ransom County, ND, Sargent County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 88 km from the middle of the area, began a volume at 19:45 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
Bismarck Municip, ND (KBIS), launched 12:00Z, 7.7 hours before the alert went out and 199 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
- 2604 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- -146 m²/s²
- 0-3 km storm-relative helicity
- 47 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
593 WWUS73 KFGF 241944 NPWFGF URGENT - WEATHER MESSAGE National Weather Service Grand Forks ND 244 PM CDT Fri Sep 24 2021 NDZ024-028-038-049-052-251400- /O.NEW.KFGF.FR.Y.0003.210925T0900Z-210925T1400Z/ Eddy-Griggs-Barnes-Ransom-Sargent- Including the cities of New Rockford, Cooperstown, Valley City, Lisbon, Enderlin, Gwinner, Milnor, Forman, and Rutland 244 PM CDT Fri Sep 24 2021 ...FROST ADVISORY IN EFFECT FROM 4 AM TO 9 AM CDT SATURDAY... * WHAT...Temperatures falling as low as 34 degrees will result in frost formation. * WHERE...Eddy, Griggs, Barnes, Ransom and Sargent Counties. * WHEN...From 4 AM to 9 AM CDT Saturday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
2 follow-up statements
076 WWUS73 KFGF 250225 NPWFGF URGENT - WEATHER MESSAGE National Weather Service Grand Forks ND 925 PM CDT Fri Sep 24 2021 NDZ024-028-038-049-052-251400- /O.CON.KFGF.FR.Y.0003.210925T0900Z-210925T1400Z/ Eddy-Griggs-Barnes-Ransom-Sargent- Including the cities of New Rockford, Cooperstown, Valley City, Lisbon, Enderlin, Gwinner, Milnor, Forman, and Rutland 925 PM CDT Fri Sep 24 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM 4 AM TO 9 AM CDT SATURDAY... * WHAT...Temperatures as low as 34 will result in frost formation. * WHERE...Griggs, Ransom, Eddy, Sargent and Barnes Counties. * WHEN...From 4 AM to 9 AM CDT Saturday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
002 WWUS73 KFGF 251242 NPWFGF URGENT - WEATHER MESSAGE National Weather Service Grand Forks ND 742 AM CDT Sat Sep 25 2021 NDZ024-028-038-049-052-251345- /O.CAN.KFGF.FR.Y.0003.000000T0000Z-210925T1400Z/ Eddy-Griggs-Barnes-Ransom-Sargent- Including the cities of New Rockford, Cooperstown, Valley City, Lisbon, Enderlin, Gwinner, Milnor, Forman, and Rutland 742 AM CDT Sat Sep 25 2021 ...FROST ADVISORY IS CANCELLED... Cloud cover has helped to stop the temperature fall early this morning, so the threat of frost has passed. $$
Nearby
Frost 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.