413 
WGUS86 KSGX 102314
FLSSGX

Flood Advisory
National Weather Service San Diego CA
414 PM PDT Mon Aug 10 2026

CAC073-110115-
/O.NEW.KSGX.FA.Y.0030.260810T2314Z-260811T0112Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
San Diego CA-
414 PM PDT Mon Aug 10 2026

...FLOOD ADVISORY IN EFFECT UNTIL 612 PM PDT THIS EVENING...

* WHAT...Arroyo and small stream flooding caused by excessive 
  rainfall is expected.

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

* WHEN...Until 612 PM PDT.

* IMPACTS...Minor flooding in low-lying and poor drainage areas. 
  Rises in small streams and normally dry arroyos. Water over 
  roadways.

* ADDITIONAL DETAILS...
  - At 414 PM PDT, Doppler radar indicated heavy rain due to
    thunderstorms. This will cause arroyo and small stream
    flooding.
  - Additional rainfall amounts of 0.5 to 1 inch are expected
    over the area. This additional rain will result in minor
    flooding.
  - Some locations that will experience flooding include...
    Hwy 78 Between S2 And Borrego Springs Rd, Hwy 78 Between
    Banner And S2, Julian, Hwy S2 Between Shelter Valley And Agua
    Caliente, Hwy S2 Between Hwy 79 And Hwy 78, Fish Creek Wash,
    Shelter Valley and Banner.
  - https://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, dont drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

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

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.

Flooding is occurring or is imminent. It is important to know where 
you are relative to streams, rivers, or creeks which can become 
killers in heavy rains. Campers and hikers should avoid streams or 
creeks.

&&

LAT...LON 3301 11625 3297 11637 3302 11647 3308 11657
      3315 11655 3320 11649 3319 11640 3312 11625


$$

12

278 
WGUS86 KSGX 110121
FLSSGX

Flood Advisory
National Weather Service San Diego CA
621 PM PDT Mon Aug 10 2026

CAC073-110131-
/O.EXP.KSGX.FA.Y.0030.000000T0000Z-260811T0112Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
San Diego CA-
621 PM PDT Mon Aug 10 2026

...FLOOD ADVISORY HAS EXPIRED...

The Flood Advisory has expired for a portion of Southwest 
California, including the following area, San Diego.

The heavy rain has ended. Arroyo and small stream flooding is no 
longer expected to pose a threat. Please continue to heed remaining 
road closures.

&&

LAT...LON 3301 11625 3297 11637 3302 11647 3308 11657
      3315 11655 3320 11649 3319 11640 3312 11625


$$

12