Flash Flood Threat Spreads Across the Southwest from Tropical Moisture
The remnants of Tropical Cyclone Priscilla, along with other tropical systems in the East Pacific, are channeling deep moisture into the Desert Southwest. This moisture plume is leading to a multi-day threat of widespread heavy rainfall and flash flooding across the region, including the Four Corners states. The greater flash flood threat for today is across southeastern California, southwestern Arizona, southern Nevada, and southwestern Utah.
- Source: National Weather Service (NWS) Weather Prediction Center (WPC)
- Link: Weather Prediction Center (WPC) Home Page – NOAA
- Source: National Weather Service (NWS) Current Hazards
- Link: National Weather Service
Tropical Storm Jerry Threatens Northern Leeward Islands
In the Atlantic basin, Tropical Storm Jerry is active and is expected to be near the Northern Leeward Islands later today (Thursday, Oct 9th). A Tropical Storm Warning has been issued for Barbuda, and advisory updates are being released regularly. As of the latest advisory, Jerry had maximum sustained winds of 65 mph and was moving WNW at 18 mph.
- Source: National Hurricane Center (NHC)
- Link: NHC Active Tropical Cyclones – NOAA
East Coast Coastal Storm to Bring Tropical Storm-Like Impacts This Weekend
A strengthening non-tropical storm system is forecast to develop off the East Coast, bringing days of heavy rain, high winds, rough surf, and coastal flooding from Florida all the way to Southern New England this weekend. Coastal areas are expected to see the worst impacts, including beach erosion and a potential for coastal flood warnings.
- Source: News Analysis on National Weather Service forecasts
- Link: Where a coastal storm will bring high winds, waves and coastal flooding this weekend
Tropical Storm Priscilla Continues to Weaken, Still Major Flood Risk
Tropical Storm Priscilla in the Eastern North Pacific continues to weaken, but its remnants are the primary contributor to the significant flash flooding risk across the Southwestern United States through the weekend.
- Source: National Hurricane Center (NHC)
- Link: National Hurricane Center – NOAA
La Niña Conditions Present and Expected to Persist Through Winter
The Climate Prediction Center (CPC) has issued a La Niña Advisory, confirming that La Niña conditions are present and are favored to persist through the Northern Hemisphere winter (December 2025 – February 2026). The current event is expected to be weak and may not bring conventional strong winter impacts, but it will influence seasonal outlooks. A transition to ENSO-neutral is most likely by early spring 2026.
- Source: NOAA Climate Prediction Center (CPC)
- Link: Climate Prediction Center: ENSO Diagnostic Discussion – NOAA
Disclaimer: This information was researched and curated with the assistance of an AI model, but the sources and final content have been reviewed and verified by a human weather research specialist.