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Bencana · White Pass snow

White Pass snow alerts have ended. That is not a road all-clear

A storm warning and a later advisory have both ended on the Klondike Highway. Earlier snowfall is documented, but a fresh road assessment is still missing.

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  1. Pembaruan ke-1White Pass snow alerts have ended. That is not a road all-clearAnda di sini

The snow alerts have ended on the Klondike Highway approach to White Pass. That is not the same as saying the road is clear. A winter storm warning expired on November 1, 2026, and a later winter weather advisory reached its stated end at 6 a.m. Alaska Standard Time on November 4—45 minutes before this report’s cutoff. Neither was a road-clearance notice. 17 18

The distinction matters on the highway climbing from Skagway toward the pass. The National Weather Service forecast 9 to 14 inches of snow and gusts up to 40 mph during the original storm-warning period, warning that travel could become “very difficult to impossible.” That was a serious forecast of potential danger, not confirmation that the highway had closed or become impassable. 1

The available records do not establish a subsequent warning renewal, a dated highway closure or restriction, or a fresh assessment showing what drivers face after the snow. Calling the old warning active would misstate the weather-alert history. Calling its expiration an all-clear would go further than the evidence allows.

From storm warning to later advisory

  1. Oct. 30, 8:53 p.m. AKDT

    NWS Juneau issues a warning describing a hazard period from 10 a.m. October 31 through 9 a.m. November 1, with 9 to 14 inches of snow possible.

    4
  2. Nov. 1, 8:52 a.m. AKST

    An update extends the stated warning end to 3 p.m. that afternoon and warns of slick, hazardous roads.

    2
  3. Nov. 1, 3 p.m. AKST

    The warning expires as the heavy-snow threat ends, but another 2 to 4 inches remain forecast overnight beyond milepost 7.

    17
  4. Nov. 4, 6 a.m. AKST

    A separate winter weather advisory reaches its stated end after forecasting up to 5 inches for the corridor overnight.

    1819

What fell, and what was forecast

There is an observation behind the concern, not just a succession of forecasts. The November 1 warning carried an Alaska Department of Transportation report of about 9 to 10 inches of snow between highway mile 8 and White Pass during the 24 hours before around 8 a.m. Sunday. The description did not explicitly give that Sunday’s calendar date. It is a useful, geographically specific account of earlier snowfall—not a current road assessment. 2

That report also is not a final storm total. The 9-to-14-inch figure described what forecasters expected; the road department’s 9-to-10-inch figure described snow reported along a particular stretch during a particular period. Adding them would risk counting overlapping snowfall twice. Neither figure establishes how much snow fell across all of Skagway. 1 2

Elevation was central to the forecast. The October 30 warning expected the snow level to rise from around 600 feet early Saturday to around 1,500 feet by midday, limiting accumulation below highway milepost 10. The November 1 update instead forecast a snow level near 1,000 feet, with limited accumulation below milepost 7. Those were successive predictions, not measurements of where the snow line actually stood. 4 2

The mileposts make the warning more useful than a broad “Skagway snowstorm” label. Its principal accumulation concern was the higher highway approach to White Pass. Conditions at lower elevations could differ; a forecast for the pass cannot be read as a uniform snowfall total for the municipality.

Nor did the warning’s expiration mark an immediate end to snowfall. The expiration notice, preserved by Forth, said the heavy-snow threat had ended at 3 p.m. November 1 while forecasting another 2 to 4 inches overnight past milepost 7. A warning can end while additional snow remains in the forecast. 17

The subsequent products described further winter weather, not additional measured totals. A November 2 motoring forecast called for up to around one inch near White Pass. The November 3 advisory then forecast up to five inches between 6 p.m. that evening and 6 a.m. November 4; an accompanying NWS zone forecast put accumulation near White Pass at around four inches. These forecasts had different timing and coverage. They should not be summed, and the later advisory was not a renewal of the original winter storm warning. 16 18 15

Why the alert clocks differ

Some earlier alert records contained conflicting timestamps. The representative warning issued October 31 at 12:53 p.m. Alaska Daylight Time gave a hazard end of 9 a.m. Alaska Standard Time on November 1 in its headline and description. Its separate “Expires” field listed November 1 at 05:00 UTC—earlier than the stated hazard end of 18:00 UTC. Those are distinct fields, not interchangeable deadlines. 1

The mismatch was not confined to that message. The October 30 warning’s expiration field preceded even its stated Saturday onset. An October 31 evening update listed 15:00 UTC in “Expires” and 18:00 UTC in “Ends.” The precise explanation for those differences has not been established. The later November 1 update and expiration notice, however, establish the warning’s eventual 3 p.m. local end, superseding its earlier 9 a.m. deadline. 4 3 2 17

The seasonal clock change adds a complication, but not a solution to those discrepancies. Alaska moved back from 2 a.m. daylight time to 1 a.m. standard time on November 1. Alaska Daylight Time is eight hours behind UTC; Alaska Standard Time is nine hours behind. That explains the changing abbreviations across the warning period, not the conflicting message fields. 8 12

For drivers, the practical distinction is simpler than the timestamps: a weather product describes a forecast hazard period; it does not certify the highway’s condition afterward. The latest established advisory period has passed. Whether this stretch is clear or safe to travel remains unanswered by a fresh, verified road assessment.

Sesuai tayangan 16 baris
  1. Nine to ten inches of snow fell along the highway approach to White Pass.
  2. Alaska's road department reported that earlier snowfall on the upper Klondike Highway. The storm warning and a later advisory have both ended, but drivers still need a current assessment of the road. What did those alerts actually say about the danger, and what do their endings tell drivers now?
  3. The Klondike Highway climbs from Skagway toward White Pass. The warning covered that corridor within the Municipality of Skagway. Its elevation forecasts and milepost limits put the main accumulation concern on the higher highway approach to the pass.
  4. The original forecast called for nine to fourteen inches of snow, with wind gusts up to forty miles an hour. Those figures described the storm forecasters expected over the October thirty-first to November first warning period. They weren't measurements of how much snow ultimately fell or how strong the wind became.
  5. Forecasters warned that travel could become very difficult to impossible. Later warning text described slick and hazardous road conditions. Those warnings gave drivers a reason to take the storm seriously, but they didn't document a highway closure.
  6. The latest advisory also ended before this report's November fourth cutoff. That leaves two separate weather products in the past: the original winter storm warning and a later winter weather advisory. The later advisory brought another snow forecast for the same corridor.
  7. The warning's original November first end was nine in the morning. A later update extended it to three that afternoon. The separate advisory ran from six p.m. November third until six a.m. November fourth. All those deadlines were Alaska Standard Time.
  8. Snow was still in the forecast when the warning ended. The expiration notice said the heavy-snow threat had ended at three p.m., while predicting another two to four inches overnight beyond milepost seven. Drivers could therefore encounter further snowfall after the warning period was over.
  9. The nine-to-fourteen-inch forecast covered the warning's expected snowfall. Alaska's road department separately reported about nine to ten inches from mile eight to White Pass over twenty-four hours. That observation covered a particular highway stretch and an earlier period.
  10. The road department's observation ran through around eight a.m. Sunday, though the warning didn't spell out that Sunday's calendar date. It gives a useful picture of snowfall along the upper route. It doesn't supply a final storm total, and adding it to the forecast would risk counting overlapping snowfall twice.
  11. The earlier forecast put the snow level around six hundred feet early Saturday, rising to fifteen hundred feet by midday. Forecasters expected that higher snow level to limit accumulation below highway milepost ten, concentrating the concern farther up the route.
  12. By the November first update, forecasters expected a snow level near one thousand feet and limited accumulation below milepost seven. Those were successive predictions of where snow would accumulate. Conditions at lower elevations could differ from the higher approach, so the highway forecast can't be treated as one snowfall total for all of Skagway.
  13. Several earlier alerts carried conflicting timestamps. Their headlines described a Sunday morning hazard end, while separate message-expiration fields gave earlier times. One expiration even preceded the forecast's Saturday start. The precise reason for those mismatches hasn't been explained.
  14. Alaska also turned its clocks back during the warning, from two a.m. daylight time to one a.m. standard time on November first. That explains the change in local-time abbreviations, but doesn't resolve the conflicting fields. The later November first update and expiration notice put the warning's end at three that afternoon.
  15. The November second highway forecast called for up to around one inch near White Pass. The November third advisory then forecast up to five inches. An accompanying forecast put around four inches near White Pass. These were separate forecasts with different timing and coverage.
  16. The later product was a winter weather advisory, and its stated period ended forty-five minutes before this report's cutoff. An alert ending tells drivers that its forecast warning period has passed. Road crews still have to assess the highway after the snow. A fresh road assessment hasn't answered whether this stretch is clear or safe to travel.

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