MIZ001-142000-
Keweenaw-
Including the city of Copper Harbor
246 AM EDT Sat Mar 14 2026


...WINTER STORM WARNING IN EFFECT FROM 5 AM SUNDAY TO 2 AM EDT
TUESDAY...


.EARLY THIS MORNING...Partly cloudy. North winds 5 to 10 mph with
gusts up to 20 mph.

.TODAY...Partly cloudy. Highs around 30. Southwest winds 5 to
10 mph.

.TONIGHT...A chance of snow after midnight. Cloudy. Lows around
23. Light southeast winds, becoming east 5 to 15 mph with gusts
up to 25 mph after midnight. Chance of snow 50 percent.

.SUNDAY...Windy, snow. Areas of blowing snow. Heavy freezing
spray in the afternoon. Snow may be heavy at times. Snow
accumulation of 4 to 6 inches. Highs around 28. East winds 15 to
25 mph with gusts up to 40 mph, becoming northeast 20 to 30 mph
with gusts up to 50 mph in the afternoon. Chance of snow
100 percent.

.SUNDAY NIGHT...Very windy. Snow. Patchy blowing snow in the
evening. Heavy freezing spray. Blowing snow after midnight. Snow
may be heavy at times after midnight. Visibility one quarter mile
or less at times. Moderate snow accumulation. Lows 7 to 12 above.
North winds 30 to 40 mph with gusts up to 60 mph. Chance of snow
90 percent.

.MONDAY...Very windy and cold. Snow in the morning, then snow
likely in the afternoon. Blowing snow and heavy freezing spray.
Snow may be heavy at times in the morning. Visibility one quarter
mile or less at times. Moderate snow accumulation. Highs 13 to
18. North winds 30 to 40 mph with gusts up to 60 mph. Chance of
snow 80 percent.

.MONDAY NIGHT...Breezy. Mostly cloudy with a 50 percent chance of
snow. Heavy freezing spray with patchy blowing snow. Visibility
one quarter mile or less at times in the evening. Lows 2 to
7 above.

.TUESDAY...Cold. Partly cloudy. Highs around 18.

.TUESDAY NIGHT...A chance of snow showers after midnight. Cloudy.
Lows 9 to 14 above. Chance of snow 30 percent.

.WEDNESDAY AND WEDNESDAY NIGHT...Warmer. Mostly cloudy. Highs
around 31. Lows around 25.

.THURSDAY AND THURSDAY NIGHT...Mostly cloudy. Highs around 37.
Lows around 25.

.FRIDAY...Partly cloudy. Highs around 34.

MIZ001-142000-
Copper Harbor-Keweenaw MI
47.47N  87.89W Elev. 610 ft
246 AM EDT Sat Mar 14 2026

Date             Sat 03/14/26            Sun 03/15/26            Mon 03/16/26
EDT 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      30          22          29          11          15
Temp          19 18 23 27 29 25 25 24 24 25 27 27 26 23 19 17 14 13 13 13 13 12
Dewpt         11 10 14 16 17 17 18 20 19 21 23 23 21 19 16 13 11 10 10 10  9  7
RH            70 70 68 63 60 71 74 84 81 84 85 85 81 84 88 84 88 87 87 87 84 80
Wind dir       N NW SW SW SW  S SE  S SE  E  E NE NE NE NE NE NE  N  N  N  N  N
Wind spd       4  2  2  5  3  2  2  3  5  8 13 19 23 25 29 29 31 32 33 31 29 29
Wind gust     16                12 13 16 25 33 39 43 50 54 56 59 60 63 59 55 55
Clouds        B1 B2 B1 B1 SC B1 B2 B2 B2 B2 B2 OV OV OV OV OV OV OV OV OV OV B2
PoP 12hr                      0          30          90          90          80
QPF 12hr                      0        0.02        0.43        0.33        0.37
Snow 12hr                 00-00           T           6
Snow                                      D  D  D  D  D  D  D  D  D  D  D  D  C
Obvis                                          BS BS BS BS BS BS BS BS BS BS BS
Wind chill    13       21             18 16 15 14 11  7  0 -3 -8 -9 -9 -8 -8 -9
Min chill        11    18    22    19    15    14     6    -4    -9   -10   -10
Winter Storm                           W  W  W  W  W  W  W  W  W  W  W  W  W  W


Date          Tue 03/17/26  Wed 03/18/26  Thu 03/19/26  Fri 03/20/26
EDT 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max           6    18       9    31      23    37      25    33
Temp           9  6 12 11   15 15 28 27   27 27 35 34   29 27 31 30
Dewpt          3  2  3  2    8 13 19 22   23 25 29 29   25 24 24 23
PWind dir         N    NW       S     S      SW     W       N     N
Wind char        BZ    LT      LT    LT      LT    LT      LT    GN
Avg clouds    B2 B2 B2 B1   B1 B2 B2 B2   B2 B1 B1 B2   B1 B2 B1 B1
PoP 12hr         50     5      20    10      20    20      20    20
Rain shwrs                                       S  S    S  S  S  S
Snow           C  C
Snowshwrs                       S          S  S  S  S    S  S  S  S