A rapidly-intensifying winter storm continues to bring heavy snow, high winds, and blizzard conditions over the Upper Midwest and Great Lakes through today. An Arctic front will lead in a period of gusty to high winds and sharply colder temperatures over the entire eastern U.S. Heavy lake effect snow is then expected from Lakes Erie and Ontario through New Year's Day. Read More >
TAM MCARTHUR RIM
DATE MONDAY 12/29/25 TUESDAY 12/30/25
TIME (LT) 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04
4A 7A 10A 1P 4P 7P 10P 1A 4A 7A 10A 1P 4P 7P 10P 1A 4A
CLOUD COVER BK BK BK SC BK BK BK SC SC SC FW FW FW FW FW FW SC
CLOUD COVER (%) 55 60 55 45 50 50 55 40 35 25 10 10 15 10 10 20 40
TEMPERATURE 26 27 33 37 33 30 32 34 33 32 37 40 37 31 32 32 30
MAX/MIN TEMP 37 29 40 27
WIND DIR SW SW W W SW S SW SW SW SW S S SW SW SW SW SW
WIND (MPH) 11 10 6 4 5 8 10 11 11 11 9 6 5 9 11 11 11
WIND GUST (MPH)
PRECIP PROB (%) 0 5 5 5 0 0 0 0 0 0 0 0 0 0 0 0 0
PRECIP TYPE
6 HOUR QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
6 HOUR SNOW 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 4.3 4.6 5.9 6.7 6.8 7.1 7.4 7.4 7.7 7.6 7.5 7.5 7.6 7.3 7.4 6.3 5.9
--- PRECIP TYPE CODES ---
CODE TYPE
T THUNDERSTORMS
R RAIN
S SNOW
I SLEET
Z FREEZING RAIN
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