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Winter

WPC’s winter severity index and its chances of snow and ice, and NWS’s winter and cold alerts in Puerto Rico. WPC draws for the lower 48.

NWS winter alerts / WPC selected map / WPC discussion: feeds current

NWS winter alerts: Feed current; checked .

WPC selected map: Feed current; checked .

WPC discussion: Feed current; checked .

Checked means retrieved, not newly issued. Each graphic retains its issue, observation, initialization or valid time. Site publishing status is separate.

Snow on the ground — NOHRSC pictures and retained history. Source analysis with qualified metadata times; separate from WPC’s winter forecasts and NWS warnings.

Chance of at least 4 inches of snow, Day 2

Puerto Rico is outside WPC’s winter products, which are drawn for the conterminous states alone. NWS’s alerts below still cover it.

WPC’s chance, outlined

  • Slight: at least 10%
  • Moderate: at least 40%
  • High: at least 70%
WPC’s chance of at least 4 inches of snow, Day 2, the 24 hours to , issued . Data: NOAA/NWS/WPC. WPC’s Probabilistic Winter Precipitation Forecast: each outline is where the chance reaches that level, and the levels nest.

Winter in Puerto Rico

WPC’s winter severity index and its chances of snow and ice are drawn for the conterminous states alone, so nothing of theirs is shown for Puerto Rico. That is not a forecast of no snow.

No NWS winter or cold alert in Puerto Rico.

NWS winter and cold alerts in Puerto Rico

No winter storm, blizzard, ice, snow squall, lake-effect, freezing fog, cold or freeze watch, warning or advisory in Puerto Rico.

NWS issues most winter alerts by forecast zone; a zone is a county or part of one. A Snow Squall Warning is drawn by NWS around the squall. NWS’s warnings on the Live map Storm Mode for Puerto Rico, winter

WPC’s heavy snow and icing discussion

WPC’s Probabilistic Heavy Snow and Icing Discussion, issued , for to . WPC’s words, as written. Data: NOAA/NWS/WPC.

Washington Cascades Days 1-3

A couple of cold fronts will bring periods of snow to the higher Cascades this morning and again late Monday into Tuesday, mainly above 5000ft. This will affect Washington Pass/SR-20 (5476ft) which is still open. The probability of at least 4 inches of snow tomorrow into Tuesday is about 10-20% before milder air changes the snow over to rain there by Tuesday afternoon.

The probability of significant ice across the CONUS is less than 10 percent.

Fracasso

The whole discussion, as WPC wrote it
Probabilistic Heavy Snow and Icing Discussion
NWS Weather Prediction Center College Park MD
142 AM EST Sun Nov 8 2026

Valid 12Z Sun Nov 08 2026 - 12Z Wed Nov 11 2026

...Washington Cascades...
Days 1-3...

A couple of cold fronts will bring periods of snow to the higher
Cascades this morning and again late Monday into Tuesday, mainly
above 5000ft. This will affect Washington Pass/SR-20 (5476ft) which
is still open. The probability of at least 4 inches of snow
tomorrow into Tuesday is about 10-20% before milder air changes the
snow over to rain there by Tuesday afternoon.


The probability of significant ice across the CONUS is less than
10 percent.


Fracasso

Not an official warning service. Warnings and watches are the National Weather Service’s, outlooks and reports the Storm Prediction Center’s and the Weather Prediction Center’s (Data: NOAA/NWS, NOAA/SPC, NOAA/WPC). When a warning is issued for you, act on it, and use weather.gov or a NOAA Weather Radio for where you are.