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Frost Advisory


URGENT - WEATHER MESSAGE
National Weather Service Duluth MN
232 AM CDT Mon Sep 14 2026

MNZ026-035-037-038-141300-
/O.CON.KDLH.FR.Y.0007.000000T0000Z-260914T1300Z/
South Itasca-Northern Aitkin-Carlton and South St. Louis-Pine-
Including the cities of Hill City, Duluth, Hinckley, Grand Rapids,
and Pine City
232 AM CDT Mon Sep 14 2026

...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT THIS MORNING...

* WHAT...Temperatures as low as the lower to middle 30s will result
  in frost formation.

* WHERE...Northern Aitkin, Pine, South Itasca, and Carlton and South
  St. Louis Counties.

* WHEN...Until 8 AM CDT this morning.

* 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.

&&

$$

URGENT - WEATHER MESSAGE
National Weather Service Duluth MN
232 AM CDT Mon Sep 14 2026

WIZ001>004-006>009-141300-
/O.CON.KDLH.FR.Y.0007.000000T0000Z-260914T1300Z/
Douglas-Bayfield-Ashland-Iron-Burnett-Washburn-Sawyer-Price-
Including the cities of Bayfield, Hurley, Washburn, Spooner,
Phillips, Superior, Grantsburg, Ashland, and Hayward
232 AM CDT Mon Sep 14 2026

...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT THIS MORNING...

* WHAT...Temperatures as low as the lower to middle 30s will result
  in frost formation.

* WHERE...Price, Ashland, Bayfield, Burnett, Douglas, Iron, Sawyer,
  and Washburn Counties.

* WHEN...Until 8 AM CDT this morning.

* 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.

&&

$$

For more information on Northland weather, visit
www.weather.gov/duluth

LE

URGENT - WEATHER MESSAGE
National Weather Service Duluth MN
232 AM CDT Mon Sep 14 2026

MNZ010>012-018-019-141300-
/O.CON.KDLH.FR.Y.0007.000000T0000Z-260914T1300Z/
Koochiching-North St. Louis-Northern Cook and Lake-North Itasca-
Central St. Louis-
Including the cities of International Falls, Isabella, Ely, Bigfork,
and Hibbing
232 AM CDT Mon Sep 14 2026

...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT THIS MORNING...

* WHAT...Temperatures as low as the lower to middle 30s will result
  in frost formation.

* WHERE...Koochiching, North Itasca, Central St. Louis, 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.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

URGENT - WEATHER MESSAGE
National Weather Service Pocatello ID
106 AM MDT Mon Sep 14 2026

IDZ051>054-151200-
/O.NEW.KPIH.FR.Y.0010.260915T0900Z-260915T1500Z/
Shoshone/Lava Beds-Arco/Mud Lake Desert-Upper Snake River Plain-
Lower Snake River Plain-
Including the cities of St. Anthony, Shelley, Idaho Falls, Mud
Lake, Pocatello, INL, Blackfoot, Carey, Fort Hall, Craters of the
Moon NM, Richfield, Shoshone, Rexburg, and American Falls
106 AM MDT Mon Sep 14 2026

...FROST ADVISORY IN EFFECT FROM 3 AM TO 9 AM MDT TUESDAY...

* WHAT...Temperatures as low as 34 will result in frost formation.

* WHERE...Shoshone/Lava Beds, Arco/Mud Lake Desert, Lower Snake River
  Plain, and Upper Snake River Plain.

* WHEN...From 3 AM to 9 AM MDT Tuesday.

* 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.

&&

$$

Visit weather.gov/pocatello for more information.

13

URGENT - WEATHER MESSAGE
National Weather Service Gray ME
207 AM EDT Mon Sep 14 2026

MEZ007-NHZ001-002-151200-
/O.NEW.KGYX.FR.Y.0008.260915T0600Z-260915T1200Z/
Northern Oxford-Northern Coos-Southern Coos-
Including the cities of Colebrook, Wilsons Mills, Byron, Dummer,
Errol, Upton, Berlin, South Arm, York Pond, Roxbury, Milan, Andover,
Middle Dam, Lancaster, and Millsfield
207 AM EDT Mon Sep 14 2026

...FROST ADVISORY IN EFFECT FROM 2 AM TO 8 AM EDT TUESDAY...

* WHAT...Temperatures as low as 33 will result in frost formation.

* WHERE...In Maine, Northern Oxford County. In New Hampshire,
  Northern Coos and Southern Coos Counties.

* WHEN...From 2 AM to 8 AM EDT Tuesday.

* 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.

&&

$$

JC

URGENT - WEATHER MESSAGE
National Weather Service Marquette MI
1153 PM EDT Sun Sep 13 2026

MIZ002-004-009>011-084-141300-
/O.CON.KMQT.FR.Y.0003.260914T0600Z-260914T1300Z/
Ontonagon-Baraga-Gogebic-Iron-Dickinson-Southern Houghton-
Including the cities of Kenton, Sidnaw, Iron River, Ontonagon,
L`Anse, Iron Mountain, and Ironwood
1153 PM EDT Sun Sep 13 2026 /1053 PM CDT Sun Sep 13 2026/

...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM EDT /8 AM CDT/
MONDAY...

* WHAT...Temperatures as low as 29 will result in frost formation.

* WHERE...Baraga, Dickinson, Iron, Gogebic, Ontonagon, and Southern
  Houghton Counties.

* WHEN...Until 9 AM EDT /8 AM CDT/ Monday.

* 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.

&&

$$

TAP

URGENT - WEATHER MESSAGE
National Weather Service Green Bay WI
913 PM CDT Sun Sep 13 2026

WIZ013-019-021-141300-
/O.CON.KGRB.FR.Y.0009.260914T0500Z-260914T1300Z/
Northern Marinette County-Langlade-Northern Oconto County-
Including the cities of Townsend, Niagara, Wausaukee, Lakewood,
Antigo, and Mountain
913 PM CDT Sun Sep 13 2026

...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT MONDAY...

* WHAT...Temperatures as low as 34 will result in frost formation.

* WHERE...Langlade, Northern Marinette County, and Northern Oconto
  counties.

* WHEN...Until 8 AM CDT Monday.

* 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.

&&

$$

For more information, visit us at http://www.weather.gov/GreenBay

JLA

URGENT - WEATHER MESSAGE
National Weather Service Green Bay WI
913 PM CDT Sun Sep 13 2026

WIZ005-010>012-018-141300-
/O.CON.KGRB.FR.Y.0009.260914T0500Z-260914T1300Z/
Vilas-Oneida-Forest-Florence-Lincoln-
Including the cities of Merrill, Lac Du Flambeau, Aurora,
Commonwealth, Crandon, Spread Eagle, Tomahawk, Rhinelander, and Eagle
River
913 PM CDT Sun Sep 13 2026

...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT MONDAY...

* WHAT...Temperatures will fall into the lower to middle 30s will
  result in frost formation. Some of the typical colder spots may
  drop a few degrees below freezing for a couple hours around
  sunrise.

* WHERE...Lincoln, Oneida, Vilas, Florence, and Forest Counties.

* WHEN...Until 8 AM CDT Monday.

* 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.

&&

$$

URGENT - WEATHER MESSAGE
National Weather Service La Crosse WI
744 PM CDT Sun Sep 13 2026

WIZ034-042-141300-
/O.CON.KARX.FR.Y.0010.260914T0700Z-260914T1300Z/
Jackson-Monroe-
Including the cities of Sparta, Black River Falls, and Tomah
744 PM CDT Sun Sep 13 2026

...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 8 AM CDT MONDAY...

* WHAT...Temperatures as low as 32 degrees will result in frost
  formation. The frost is favored in low-lying and bog locations with
  temperatures possibly 5 to 10 degrees warmer at higher elevations.

* WHERE...Jackson and Monroe Counties.

* WHEN...From 2 AM to 8 AM CDT Monday.

* 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.

&&

$$

JSB

U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
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