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Frost Advisory — Ontonagon, MI, Baraga, MI, Marquette, MI, Alger, MI, Luce, MI, Gogebic, MI, Iron, MI, Dickinson, MI, Delta, MI, Southern Schoolcraft, MI, Southern Houghton, MI, Northern Schoolcraft, MI
Issued
1:00 AM CDT · Wed, Sep 23 2026
Expires
8:00 AM CDT · Wed, Sep 23 2026
Issuing Office
NWS KMQT

Affected Areas

Ontonagon, MI Baraga, MI Marquette, MI Alger, MI Luce, MI Gogebic, MI Iron, MI Dickinson, MI Delta, MI Southern Schoolcraft, MI Southern Houghton, MI Northern Schoolcraft, MI

Official Bulletin

860
WWUS73 KMQT 221723
NPWMQT

URGENT - WEATHER MESSAGE
National Weather Service Marquette MI
123 PM EDT Tue Sep 22 2026

MIZ002-004>007-009>011-013-014-084-085-231300-
/O.NEW.KMQT.FR.Y.0005.260923T0600Z-260923T1300Z/
Ontonagon-Baraga-Marquette-Alger-Luce-Gogebic-Iron-Dickinson-Delta-
Southern Schoolcraft-Southern Houghton-Northern Schoolcraft-
Including the cities of Sidnaw, Ontonagon, Gwinn, Newberry, Grand
Marais, Iron Mountain, Manistique, Ironwood, Munising, Iron
River, Seney, L'Anse, Kenton, Gladstone, Escanaba, and Marquette
123 PM EDT Tue Sep 22 2026 /1223 PM CDT Tue Sep 22 2026/

...FROST ADVISORY IN EFFECT FROM 2 AM EDT /1 AM CDT/ TO 9 AM EDT /8
AM CDT/ WEDNESDAY...

* WHAT...Temperatures as low as 32 will result in frost formation.

* WHERE...Portions of central Upper and western Upper Michigan.

* WHEN...From 2 AM EDT /1 AM CDT/ to 9 AM EDT /8 AM CDT/ Wednesday.

* 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.

&&

$$

LC