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YellowRegional levelUnchanged from yesterday

The first of a series of Pacific storms is arriving: High Wind Warnings this morning on the southern Oregon and Del Norte coasts with widespread outages expected, Winter Storm Warnings across the Sierra today into Saturday (through Tuesday in the southern Sierra), and coastal flooding at this morning's high tide in Washington's San Juan Islands. Surf of 25-35 ft hits the Bay Area coast tonight and the Central Coast faces a Coastal Flood Warning Saturday; no outage counts were confirmed yet.

Drops to Green if this morning's coastal winds pass without widespread outages and Sierra roads reopen quickly SaturdayGoes Orange if outages spread beyond the southern Oregon and far northern California coast, the Skokomish or other rivers flood, or Sierra snow closes I-80 and U.S. 50 for long periods

This threat level is the 0400 Report's own assessment, not an official government alert, warning or declaration. For official alerts where you live, follow your local emergency officials and the National Weather Service. How we set it

Regions rate local conditions. Nationwide issues, like fuel prices, set the US level.

SITREP What changed in this region

escalatingWeather

Sierra Winter Storm Warnings today into Saturday; southern Sierra through Tuesday

NWS Sacramento's Winter Storm Warning for the northern Sierra and southern Cascades above 6,000 ft, including I-80, U.S. 50, SR 4, SR 108 and Lassen, runs 10 a.m. Friday to 10 a.m. Saturday: 6-12 inches of snow, up to 18 inches on peaks, gusts to 60 mph, very difficult travel during the Friday evening commute and possible localized outages. Warnings also cover Lake Tahoe and Mono County (NWS Reno) and the eastern Sierra slopes of Inyo County (NWS Las Vegas). NWS Hanford upgraded the Yosemite, Kings Canyon and Sequoia areas above 6,000 ft to a Winter Storm Warning from 10 a.m. Friday to 4 a.m. Tuesday, with up to 18 inches and travel that could be very difficult to impossible. These are Winter Storm Warnings; no Blizzard Warning is in effect. More snow is expected Sunday night into Monday.

escalatingWeather

Damaging coastal winds this morning in southern Oregon and Del Norte County; big surf and coastal flooding along the coast

NWS Medford's High Wind Warning for the Curry County and south-central Oregon coast runs until 10 a.m. Friday, with gusts to 65 mph and widespread outages expected; NWS Eureka has a High Wind Warning on the Del Norte coast until 1 p.m. (gusts to 60 mph, widespread outages expected) and wind advisories for Humboldt, Mendocino and Lake counties. High Surf Warnings run from the north Oregon coast to Big Sur. NWS Bay Area expects 25-35 ft breakers with occasional 40-50 ft sets from 6 p.m. Friday to 4 a.m. Sunday and coastal flood advisories Saturday. NWS Los Angeles has a High Surf Warning (18-25 ft) and a Coastal Flood Warning for San Luis Obispo and Santa Barbara Central Coast beaches Saturday, warning of possible damage to structures, and more warning-level surf possible Sunday night into Monday; NWS San Diego has a High Surf Advisory for Orange and San Diego county beaches. NWS Portland puts a 30% chance on High Wind Warning gusts at the windiest central Oregon coast sites.

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Washington: significant coastal flooding possible in the San Juan Islands this morning; Skokomish River Flood Watch

NWS Seattle has a Coastal Flood Warning for San Juan County from 6 a.m. to noon Friday, with 2.5-3 ft of inundation possible, numerous road closures expected and low-lying homes, businesses and some critical infrastructure possibly flooded. Coastal Flood Advisories (2-2.5 ft) cover Puget Sound shorelines including the City of Seattle, Everett, the Pierce and south King County lowlands, Olympia and Hood Canal for the same hours, and the Grays Harbor coast later today. A Flood Watch for Mason County runs through late Saturday night: 3-4.5 inches of rain on the south slopes of the Olympics could push the Skokomish River above flood stage. NWS Seattle says Saturday's second system will be the windier one.

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North Hollywood crash: driver held on DUI; DA awaits police report before deciding charges

LAPD arrested the driver of the minivan that went onto the sidewalk near the North Hollywood Metro station on Nov. 10, identifying him as Ihor Demianenko, 61, of Valley Village; AP reported the arrest was on suspicion of DUI and three counts of murder. Three women were killed and two other women in their 50s were hospitalized. ABC7 reported Friday that he has not yet been formally charged and that District Attorney Nathan Hochman is waiting for LAPD's report, including speed and alcohol analysis, and would not say whether murder charges will be filed. Police allege he was impaired and driving at an unsafe speed.

Regional board Tap a line for detail

Power & utilities

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NWS Medford and Eureka expect widespread outages on the southern Oregon and Del Norte coasts this morning from gusts of 60-65 mph; NWS Sacramento and Reno warn Sierra wind and wet snow could bring down branches and power lines today into Saturday.

NWS Medford and Eureka expect widespread outages on the southern Oregon and Del Norte coasts this morning from gusts of 60-65 mph; NWS Sacramento and Reno warn Sierra wind and wet snow could bring down branches and power lines today into Saturday. No outage counts or utility statements were found yet (Pacific Power, Coos-Curry Electric, PG&E, PSE, Seattle City Light, PGE, SCE, LADWP, Hawaiian Electric and CAISO were not read).

Weather & hazards

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Active: High Wind Warnings on the southern Oregon coast, Del Norte coast and central Siskiyou County; wind advisories in the Sacramento Valley and Delta, Redding, the Klamath Basin, Modoc, the Mojave Desert and northeast Oregon; Winter Storm Warnings across the Sierra and Lassen; High Surf Warnings from Clatsop County, Ore., to the Central Coast; Coastal Flood Warning in the San Juan Islands this morning and Saturday on the San Luis Obispo and Santa Barbara coast; tidal flood advisory along the Delta and Solano County shorelines to 4 p.m.; Mason County Flood Watch; Blizzard Warning on Alaska's Beaufort Sea coast through Sunday and winter weather advisories on Kodiak Island.

Active: High Wind Warnings on the southern Oregon coast, Del Norte coast and central Siskiyou County; wind advisories in the Sacramento Valley and Delta, Redding, the Klamath Basin, Modoc, the Mojave Desert and northeast Oregon; Winter Storm Warnings across the Sierra and Lassen; High Surf Warnings from Clatsop County, Ore., to the Central Coast; Coastal Flood Warning in the San Juan Islands this morning and Saturday on the San Luis Obispo and Santa Barbara coast; tidal flood advisory along the Delta and Solano County shorelines to 4 p.m.; Mason County Flood Watch; Blizzard Warning on Alaska's Beaufort Sea coast through Sunday and winter weather advisories on Kodiak Island. Southern California has rain with a chance of thunderstorms and localized minor flooding today (NWS Los Angeles). Hawaii's high surf advisory ended at 6 a.m. Friday HST.

Travel & transport

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Sierra travel on I-80, U.S.

Sierra travel on I-80, U.S. 50, SR 4 and SR 108 could be very difficult today into Saturday, affecting the Friday evening commute; southern Sierra roads could be very difficult to impossible through Monday's commute (NWS). High-profile vehicles face difficult travel on U.S. 101 on the southern Oregon and Del Norte coasts this morning. Numerous road closures are expected in the San Juan Islands this morning (NWS Seattle). The LA/Long Beach port watchmen's strike deadline is still Nov 20 and no strike has been reported (Reuters, Nov 9; no newer report found). Road and airport status were not checked.

Health, water & safety

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North Hollywood crash: three women killed and two hospitalized; the driver was arrested on suspicion of DUI, and the DA is awaiting LAPD's report before deciding charges (ABC7, AP).

North Hollywood crash: three women killed and two hospitalized; the driver was arrested on suspicion of DUI, and the DA is awaiting LAPD's report before deciding charges (ABC7, AP). Searches of Seattle, Portland, Oakland, Sacramento and San Diego news found no new multi-victim incident for Nov 11-12. NWS warns of dangerous surf and sneaker waves along the coast from Oregon to Southern California this weekend.

Elsewhere Other regions and the world

National stories, like fuel prices and overseas conflict, are on the US page.

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