Rain and snow expected across western U.S. for Halloween weekend

Titles and summaries are AI-extracted from news reporting; every source is linked below. Event id 420abad2-8c02-47d5-8626-7fe06bcdfce5.

Where: Santa Monicaresolved to locality34.019, -118.491
When: Occurrence date not stated by reportingFirst reported 2026-10-30 · last update 2026-10-31
Sourcing: 10 reports10 outlets carrying it · independence not established
How far this got: localizedno finer place namedRadar coverage

Summary

A weather system is bringing precipitation to multiple regions across the western United States over the Halloween weekend. Showers are reported for Saturday across various areas, with more widespread rain expected Sunday. Southern California forecasts indicate rain during Halloween evening trick-or-treating hours, with some areas potentially receiving up to 2.5 inches of rainfall and isolated thunderstorms possible. Mountain areas are expected to see snow accumulations of 5-20 inches above 10,000 feet. Coastal flood advisories are in effect for several counties. Temperatures are forecast to drop into the 50s and 60s during the system, with conditions improving early in the following week.

What imagery could confirm

Which satellite to use, what to look for and why. Part of the event detail on Pro.

What remains unresolved

no finer place named

Timeline

8 recorded change(s). The ledger starts when this event was first folded: the initial observation is not recorded as a change, so an empty timeline means nothing has moved since, not that nothing is known.

2026-10-31member countour measurement9 → 10reports joined

3 more change(s) — the values are part of the event detail on paid plans. 4 change(s) before the history shown here.

Sources

Grouped by outlet. Syndication is not collapsed, so several outlets can carry one wire story — the count is breadth of carriage, not independent confirmation.

ksbw.com
- Slight chance of light rain Halloween night2026-10-30
smdp.com
- Rain Expected for Santa Monica Halloween Night2026-10-30
foxla.com
- LA Halloween forecast: Rain storm to bring wet weekend across Southern California2026-10-30
nypost.com
- SoCal Halloween forecast: Cities could see first wet Oct. 31 in decades2026-10-30
nbcmontana.com
- Light showers this evening; next storm system moves in on Halloween night with rain, snow2026-10-31
newsroomamerica.com
- Mayor Bass Urges Angelenos to Prepare as Rain Heads for Los Angeles2026-10-31
waka.com
- Mostly cloudy this weekend; Showers Halloween, rain likely Sunday - WAKA 82026-10-31
krcrtv.com
- Weekend Forecast: Halloween rain and an upswing as we fall back2026-10-31
krystal93.com
- No weather tricks for Denver on Halloween, with dry and mild weather ahead - Krystal 932026-10-31
westkentuckystar.com
- NWS: Halloween showers should hold off til after 9PM2026-10-31

Related events

3 related event(s) and 0 place(s) or facilities — the same facility, place, actor or campaign. Part of the event detail on Pro.

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Reproduce over the API (free endpoint)

bash

curl "https://offnadir-delta.com/api/v1/events/420abad2-8c02-47d5-8626-7fe06bcdfce5/thread" \
  -H "Authorization: Bearer ond_YOUR_API_KEY"

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