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Elev 623 ft, 32.77 °N, 117.02 °W

La Mesa, CA Severe Weather Alertstar_ratehome

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Current Station
Personal Weather Station
Location: La Mesa, CA
Elevation: 623ft
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Active Weather Alerts

Flood Advisory
Issued: 10:20 PM Sep. 27, 2025 – National Weather Service
...FLOOD ADVISORY IN EFFECT UNTIL 515 PM PDT THIS AFTERNOON...

* WHAT...Flooding caused by excessive rainfall is expected.

* WHERE...A portion of Southwest California, including the following
county, San Diego.

* WHEN...Until 515 PM PDT.

* IMPACTS...Minor flooding in low-lying and poor drainage areas.

* ADDITIONAL DETAILS...
- At 320 PM PDT, Doppler radar indicated heavy rain due to
thunderstorms. Minor flooding is ongoing or expected to begin
shortly in the advisory area. Between 0.5 and 1.5 inches of
rain have fallen.
- Additional rainfall amounts up to 1 inch are expected over
the area. This additional rain will result in minor flooding.
- Some locations that will experience flooding include...
Cuyamaca Rancho State Park, Hwy 78 Between Banner And S2,
Julian, northern Mount Laguna, Hwy 78 Between S2 And Borrego
Springs Rd, Lake Cuyamaca, Hwy S1 Between Lake Cuyamaca And
Mount Laguna, Hwy 79 Between Julian And Lake Cuyamaca, Hwy S2
Between Shelter Valley And Agua Caliente and Descanso.
- https://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.

&&



Flood Advisory
Issued: 10:00 PM Sep. 27, 2025 – National Weather Service
...FLOOD ADVISORY IN EFFECT UNTIL 6 PM PDT THIS EVENING...

* WHAT...Flooding caused by excessive rainfall is expected.

* WHERE...A portion of Southwest California, including the following
county, San Diego.

* WHEN...Until 600 PM PDT.

* IMPACTS...Minor flooding in low-lying and poor drainage areas.

* ADDITIONAL DETAILS...
- At 300 PM PDT, Doppler radar and automated rain gauges
indicated heavy rain due to thunderstorms. Minor flooding is
ongoing or expected to begin shortly in the advisory area.
Between 0.75 and 1.25 inches of rain have fallen.
- Additional rainfall amounts up to 1 inch are expected over
the area. This additional rain will result in minor flooding.
- Some locations that will experience flooding include...
Warner Springs, Hwy 79 Between Warner Springs And Oak Grove,
Hwy 79 Between Santa Ysabel And Warner Springs, Lake Henshaw,
S7 - East Grade Rd, Palomar Mountain, Hwy S2 Between Hwy 79
And Hwy 78, Ranchita, Oak Grove and Los Coyotes Indian
Reservation.
- https://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.

&&



Flash Flood Warning
Issued: 9:07 PM Sep. 27, 2025 – National Weather Service
The National Weather Service in San Diego has issued a

* Flash Flood Warning for...
Southeastern San Diego County in southwestern California...

* Until 515 PM PDT.

* At 207 PM PDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 0.5 and 1 inch of rain
has fallen. Additional rainfall amounts of 0.5 to 1 inch are
possible in the warned area. Flash flooding is ongoing or expected
to begin shortly.

HAZARD...Life threatening flash flooding. Thunderstorms
producing flash flooding.

SOURCE...Radar.

IMPACT...Life threatening flash flooding of creeks and streams,
urban areas, highways, streets and underpasses.

* Some locations that will experience flash flooding include...
Alpine, I-8 Between Pine Valley And Boulevard, Mount Laguna,
Cuyamaca Rancho State Park, I-8 Between Boulevard And Imperial
County Line, Lake Morena, Campo, Pine Valley, Boulevard and
Potrero.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

&&


FLASH FLOOD...RADAR INDICATED;
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

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