Headline:
Frost Advisory issued September 21 at 2:40AM CDT until September 21 at 8:00AM CDT by NWS Duluth MN
Event:
Frost Advisory
Urgency:
Expected
Effective:
September 21, 2026 - 12:40am
Expires:
September 21, 2026 - 6:00am
Description:
* WHAT...Temperatures as low as 33 will result in frost formation.
* WHERE...Koochiching, North St. Louis, and Northern Cook and Lake
Counties.
* WHEN...Until 8 AM CDT this morning.
* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive
outdoor plants may be killed if left uncovered.
Instruction:
Take steps now to protect tender plants from the cold.
Area Description:
Koochiching; North St. Louis; Northern Cook/Northern Lake
Forcast Office:
NWS Duluth MN
Sender:
w-nws.webmaster@noaa.gov