SAN DIEGO, CA – A flash flood warning was issued Tuesday afternoon for North-eastern San Diego County, where intense thunderstorms are expected to deliver heavy rainfall and potential flooding, according to the National Weather Service (NWS).
Storm Conditions and Rainfall Estimates
At approximately 4:11 p.m. PDT, Doppler radar detected thunderstorms moving through the region, producing heavy rain in isolated areas. Meteorologists reported that between 1 and 1.5 inches of rain had already fallen, with an additional 0.25 to 0.75 inches possible into the evening hours.
The flash flood warning includes parts of Riverside County and remains in effect until 7:15 p.m. PDT.
Areas Affected
The warning includes several rural and mountainous areas, particularly:
- Southeastern Anza
- Highway 74 between Anza and Palm Desert
- Santa Rosa Mountain region
These locations are especially vulnerable due to elevation, slope runoff, and limited drainage, increasing the likelihood of rapid water accumulation and dangerous flooding conditions.
Flash Flood Risks and Preparedness
Flash floods are often unpredictable and fast-moving, especially during mountain thunderstorms, which can overwhelm creeks, washes, and roadways in a matter of minutes. Residents and travelers are urged to avoid low-lying areas, monitor weather alerts, and never drive through flooded roads.
Even small amounts of water on highways can be dangerous, particularly in rural areas with few escape routes.
How to Stay Safe in Flash Flood Conditions
- Stay Informed: Follow local news, weather apps, or NWS alerts for real-time updates.
- Avoid Flood-Prone Roads: Areas along Highway 74 and near mountain passes can become impassable quickly.
- Seek Higher Ground: If flooding begins, move to elevated locations immediately.
- Do Not Cross Floodwaters: Just 6 inches of moving water can knock down an adult; 12 inches can carry away most vehicles.
Have you experienced flash flooding in your area before? Share your thoughts or safety tips in the comments below.
