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NWS NBM 18Z 15 Nov · Rexburg, ID

Snow Briefing · City

Rexburg, ID

City • 4,866 ft • NBM 18Z 15 Nov 2026 • issued 19:39Z

The blend has 1.1″ of snow for Rexburg over the next three days, and 4.1″ over its ten days. Verdict: shovel it.

Snow Briefing card for Rexburg, ID: NBM 18Z 15 Nov 2026. Next 24 h 0.0″, 72 h 1.1″, ten days 4.1″.
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The next ten days

Plow verdict on the 72-hour total: Shovel it

HorizonSnowRange 10–90%IceChance ≥1″Chance ≥6″
Next 24 h0.0″0.0–0.0″0.00″0%0%
Next 48 h0.0″0.0–0.0″0.00″0%0%
Next 72 h1.1″—0.00″——
5 days2.0″————
7 days3.1″————
10 days4.1″————

Snow is the blend's deterministic forecast; the range is its 10th to 90th percentile and the chances are its own exceedance probabilities. Ice is freezing-rain accretion.

Day by day

Climate day (12Z–12Z)Snow90th pctChance ≥1″Chance ≥6″
Tue 17 Nov0.0″0.0″0%0%
Wed 18 Nov1.0″———
Thu 19 Nov0.2″———
Fri 20 Nov0.5″———
Sat 21 Nov0.8″———
Sun 22 Nov0.4″———
Mon 23 Nov0.6″———
Tue 24 Nov0.4″———
Wed 25 Nov0.2″———

Climate days run 12Z to 12Z, the window the NWS national snowfall analysis scores. Percentiles and chances are available for the first two days.

Two weeks out · ECMWF ensemble

Byp10Medianp90Members ≥1″Members ≥6″
Day 30.0″1.7″4.3″64%2%
Day 50.5″3.1″7.4″82%18%
Day 71.5″5.0″9.4″94%40%
Day 102.1″6.2″9.8″96%54%
Day 154.8″8.9″14.1″100%80%

ECMWF open data, 50 perturbed members at 0.25°, snow at a fixed 10:1 ratio, run 00Z 15 Nov. Cumulative from the run.

Density, level and trend

Density at 48 h—
Load at 48 h—
Snow-to-liquid ratio at 48 h—
Snow level at 24 h / 48 h— / 6,476 ft
Freezing rain chance, 48 h0%
Trendsteady vs the previous run (48 h)

How good is this forecast?

The blend's day-1 snowfall this season, scored against the NWS national snowfall analysis: mean absolute error 1.12″, bias −0.21″, critical success index at 6″ 0.06 over 71 scored days. Last scored day: 14 Nov 2026.

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forecastflakes.com/products/rexburg-id · NWS National Blend of Models · ECMWF open data · © 2026 Forecast Flakes · not an official warning source