El Niño update, November 4: what to know

What’s happening

• Active NWS alert: Beach Hazards Statement, in effect until 7:00 PM PST (NWS San Francisco CA), for parts of Southern Monterey Bay and Big Sur Coast. Source: NWS active alerts — CA (opens in a new tab)
• Active NWS alert: Coastal Flood Advisory, in effect until 1:00 PM PST (NWS San Francisco CA), for parts of San Francisco. Source: NWS active alerts — CA (opens in a new tab)
• Active NWS alert: Frost Advisory, in effect until 9:00 AM PST (NWS Eureka CA), for parts of Southeastern Interior Humboldt, Northwestern Interior Mendocino and Northeastern Interior Mendocino. Source: NWS active alerts — CA (opens in a new tab)

What to watch for

• NOAA’s Climate Prediction Center says: “Moderate risk of heavy precipitation for parts of the Pacific Northwest, and northern and central California, Thu-Sun, Nov 12-15.” Source: CPC U.S. Hazards Outlook (opens in a new tab)
• NOAA’s Climate Prediction Center says: “Moderate risk of heavy high elevation snow across the Klamath and the Sierra Nevada Mountains, Thu-Sun, Nov 12-15.” Source: CPC U.S. Hazards Outlook (opens in a new tab)
• The Weather Prediction Center says: “This may support showers expanding into California, while stronger winds become possible along portions of the West Coast.” Source: WPC Extended Forecast Discussion (opens in a new tab)

Active NWS alerts: Beach Hazards Statement: 3 (CA) · Coastal Flood Advisory: 3 (CA) · Frost Advisory: 1 (CA)

What’s happening

• Active NWS alert: Coastal Flood Advisory, in effect until 12:00 PM PST (NWS San Diego CA), for parts of San Diego County Coastal Areas and Orange County Coastal. Source: NWS active alerts — CA (opens in a new tab)
• NWS Los Angeles/Oxnard says: “Mostly clear skies, dry conditions, a general warming trend and periods of offshore winds are likely through the week.” Source: Area Forecast Discussion — Los Angeles/Oxnard (opens in a new tab)
• NWS San Diego says: “Slightly below normal temperatures today with clearing skies.” Source: Area Forecast Discussion — San Diego (opens in a new tab)

What to watch for

No items for this region in this post.

Active NWS alerts: Coastal Flood Advisory: 1 (CA)

What’s happening

• Active NWS alert: Flood Warning, in effect until 2:00 PM MST (NWS Phoenix AZ), for parts of Maricopa, AZ. Source: NWS active alerts — AZ (opens in a new tab)
• Active NWS alert: Flood Warning, in effect until 9:00 PM MST (NWS Flagstaff AZ), for parts of Coconino, AZ and Navajo, AZ. Source: NWS active alerts — AZ (opens in a new tab)
• Active NWS alert: Flood Warning, in effect until 11:00 PM MST (NWS Albuquerque NM), for parts of San Juan, NM. Source: NWS active alerts — NM (opens in a new tab)

What to watch for

• NOAA’s Climate Prediction Center says: “Moderate risk of heavy high elevation snow across the Klamath and the Sierra Nevada Mountains, Thu-Sun, Nov 12-15.” Source: CPC U.S. Hazards Outlook (opens in a new tab)
• NOAA’s Climate Prediction Center says: “Slight risk of heavy precipitation across the West Coast and into parts of the Desert Southwest, Great Basin, and Southern Rockies, Thu-Wed, Nov 12-18.” Source: CPC U.S. Hazards Outlook (opens in a new tab)
• NOAA’s Climate Prediction Center says: “Probabilities of above normal precipitation exceed 50 percent over most of California and parts of southwestern Nevada and western Arizona, where enhanced moisture flow is most likely.” Source: CPC 6-10 / 8-14 Day Outlook Discussion (opens in a new tab)

Active NWS alerts: Flood Warning: 10 (AZ, NM, UT) · Flood Advisory: 3 (AZ)

What’s happening

• Active NWS alert: Flood Warning, in effect until 12:00 AM CST (NWS Lake Charles LA), for parts of Calcasieu, LA. Source: NWS active alerts — LA (opens in a new tab)
• The Weather Prediction Center says: “Meanwhile, rain will develop over parts of the Upper Mississippi Valley/Great Lakes and showers and thunderstorms along and ahead of the associated front extending from the Ohio Valley to the Central Gulf Coast.” Source: WPC Short Range Forecast Discussion (opens in a new tab)
• The Storm Prediction Center says: “The first area is along the primary cold front over eastern AL and western GA. Most recent CAM solutions suggest scattered thunderstorms will develop along the front by mid-afternoon, with at least pockets of heating occurring out ahead.” Source: SPC Day 1 Convective Outlook (opens in a new tab)

What to watch for

No items for this region in this post.

Active NWS alerts: Flood Warning: 1 (LA)

What’s happening

• Active NWS alert: Flood Warning (NWS Melbourne FL), for parts of Lake, FL and Volusia, FL. Source: NWS active alerts — FL (opens in a new tab)
• Active NWS alert: Flood Warning (NWS Tampa Bay Ruskin FL), for parts of DeSoto, FL. Source: NWS active alerts — FL (opens in a new tab)
• Active NWS alert: Rip Current Statement, in effect until 7:00 PM EST (NWS Miami FL), for parts of Coastal Palm Beach County. Source: NWS active alerts — FL (opens in a new tab)

What to watch for

No items for this region in this post.

Active NWS alerts: Flood Warning: 10 (FL) · Rip Current Statement: 6 (FL) · Coastal Flood Statement: 3 (FL) · Coastal Flood Advisory: 1 (FL)