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464 WWHW40 PHFO 290148 WSWHFO URGENT - WINTER WEATHER MESSAGE National Weather Service Honolulu HI 348 PM HST Tue Jan 28 2025 ...WINTER WEATHER WATCH FOR THE SUMMITS OF HALEAKALA, MAUNA KEA, AND MAUNA LOA LATE WEDNESDAY NIGHT THROUGH FRIDAY MORNING... .A strong winter low pressure system will bring the potential for snow and ice to the summits of Haleakala and the Big Island. HIZ022-291500- /O.NEW.PHFO.WS.A.0001.250130T1000Z-250131T1400Z/ Haleakala Summit- 348 PM HST Tue Jan 28 2025 ...WINTER STORM WATCH IN EFFECT LATE WEDNESDAY NIGHT THROUGH LATE THURSDAY NIGHT... * WHAT...Periods of snow and mixed precipitation. Snow accumulations up to four inches possible. A light glaze of ice is also possible on wet surfaces as temperatures drop below freezing. * WHERE...Haleakala Summit. * WHEN...From late Wednesday night through late Thursday night. * IMPACTS...Travel could be very difficult to impossible. Blowing snow will significantly reduce visibility at times, with periods of zero visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Watch means there is potential for significant snow or ice accumulations that may impact the summits. Anyone planning travel to the summits, including hikers and campers, should monitor the latest forecasts and consider postponing their trip until improved weather returns. && $$ HIZ028-291500- /O.NEW.PHFO.WS.A.0001.250130T1000Z-250131T2200Z/ Big Island Summits- 348 PM HST Tue Jan 28 2025 ...WINTER STORM WATCH IN EFFECT LATE WEDNESDAY NIGHT THROUGH FRIDAY MORNING... * WHAT...Periods of snow and mixed precipitation. Snow accumulations up to ten inches possible. A light glaze of ice is also possible on wet surfaces as temperatures drop below freezing. * WHERE...Big Island Summits. * WHEN...From late Wednesday night through Friday morning. * IMPACTS...Travel could be very difficult to impossible. Blowing snow will significantly reduce visibility at times, with periods of zero visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Watch means there is potential for significant snow or ice accumulations that may impact the summits. Anyone planning travel to the summits, including hikers and campers, should monitor the latest forecasts and consider postponing their trip until improved weather returns. && $$ AHUE