The National Weather Service (NWS) has issued a freeze warning for parts of northern Minnesota and frost advisories across North Dakota, South Dakota, Iowa and Wisconsin as of early Sunday, cautioning that temperatures could fall into the low 30’s and produce frost that may damage vegetation.
Why It Matters
The agency warned that frost and freeze conditions could kill crops and sensitive outdoor plants, as well as posing a potential risk of damage for unprotected outdoor plumbing.
What To Know
The NWS Duluth office maintained a freeze warning, saying: “Sub-freezing temperatures as low as 30 [were] expected” for Koochiching, Central and North St. Louis counties. The warning remains in effect until 8 a.m. CDT Sunday and notes that “frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.”
The freezing point of water is 32 degrees Fahrenheit.
Additional frost advisories spanned parts of northwestern Iowa and Wisconsin, northeastern South Dakota, and most of North Dakota on Sunday morning.
The NWS Grand Forks office listed a frost advisory in effect until 8 a.m. CDT for portions of north central, northwest and west central Minnesota and northeast and southeast North Dakota, warning that temperatures in the low to mid 30’s would result in frost formation.
The NWS Sioux Falls office said a frost advisory remains in effect until 9 a.m. CDT Sunday morning for portions of northwest Iowa, southwest Minnesota and central and east central South Dakota, with temperatures as low as 35 F expected.
The agency said residents in affected areas should take steps to reduce tender plants from the cold, cautioning that sensitive outdoor plants could be killed if left uncovered.
What People Are Saying
The National Weather Service forecast office, Duluth, Minnesota said in a post on X, Saturday: “Temperatures are looking to take a tumble tonight as winds calm down and skies clear out. Frost is likely for most places with temperatures in the low to mid 30s, and even some freezing temperatures up north. Frost Advisories and Freeze Warnings are in effect. Cover your plants!”
NWS Bismarck, North Dakota said on X, Sunday: “Temperatures in the lower to mid 30s early this morning could damage gardens and outdoor plants. Therefore, a frost advisory is in effect until 9 AM CDT or 8 AM MDT for most of North Dakota.”
NWS Sioux Falls, South Dakota said on X, Saturday: “Time to protect any sensitive plants tonight as frost appears more likely. A Frost Advisory is now in effect for many areas north of I-90 in SD, SW MN and much of NW IA.
“Even locations outside the advisory will see patchy frost in lower, wind-protected areas.”
What Happens Next
The NWS issues regular forecast updates via its website and social media channels.
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