557 
WGUS86 KSGX 111953
FLSSGX

Flood Advisory
National Weather Service San Diego CA
Issued by National Weather Service Los Angeles/Oxnard CA
1253 PM PDT Tue Aug 11 2026

CAC071-112200-
/O.NEW.KSGX.FA.Y.0033.260811T1953Z-260811T2200Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
San Bernardino CA-
1253 PM PDT Tue Aug 11 2026

...FLOOD ADVISORY IN EFFECT UNTIL 3 PM PDT THIS AFTERNOON...

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

* WHERE...Southeastern San Bernardino County in southern California
  specifically Heart Bar Campground, Mount San Gorgonio, Forest
  Falls, and Onyx Summit areas...

* WHEN...Until 300 PM PDT.

* IMPACTS...Minor flooding in low-lying and poor drainage areas.
  Rockslides and Mudslides are possible.

* ADDITIONAL DETAILS...
  - At 1251 PM PDT, Doppler radar indicated heavy rain due to
    thunderstorms. Minor flooding is ongoing or expected to begin
    shortly in the advisory area.
  - Some locations that will experience flooding include...
    Mount San Gorgonio, Onyx Summit, Forest Falls, Hwy 38 Between
    Yucaipa And Onyx Summit, Hwy 38 Between Onyx Summit And
    Sugarloaf, Heart Bar Campground and Barton Flats Campground.
  - https://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3407 11690 3404 11686 3404 11679 3418 11670
      3421 11672 3421 11686 3410 11691 3409 11691


$$

Black/Cohen