846
WGUS86 KSTO 212028
FLSSTO
FLOOD ADVISORY
NATIONAL WEATHER SERVICE SACRAMENTO CA
128 PM PDT TUE APR 21 2026
CAC005-009-017-057-061-067-077-099-101-109-113-220230-
/O.NEW.KSTO.FA.Y.0008.260421T2028Z-260422T0230Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
AMADOR CA-CALAVERAS CA-EL DORADO CA-NEVADA CA-PLACER CA-
SACRAMENTO CA-SAN JOAQUIN CA-STANISLAUS CA-SUTTER CA-TUOLUMNE CA-
YOLO CA-
128 PM PDT TUE APR 21 2026
..FLOOD ADVISORY IN EFFECT UNTIL 730 PM PDT THIS EVENING
* WHAT...URBAN AND SMALL STREAM FLOODING CAUSED BY THUNDERSTORMS.
* WHERE...PORTIONS OF CENTRAL AND NORTHERN CALIFORNIA, INCLUDING THE
FOLLOWING COUNTIES, PLACER, AMADOR, CALAVERAS, EL DORADO, NEVADA,
SACRAMENTO, SAN JOAQUIN, STANISLAUS, SUTTER, TUOLUMNE AND YOLO.
* WHEN...UNTIL 730 PM PDT TUESDAY.
* IMPACTS...MINOR FLOODING IN LOW-LYING AND POOR DRAINAGE AREAS.
RISES IN SMALL STREAMS AND NORMALLY DRY ARROYOS. WATER OVER
ROADWAYS.
* ADDITIONAL DETAILS...
- AT 124 PM PDT, DOPPLER RADAR AND RAIN GAUGES INDICATED HEAVY
RAIN DUE TO THUNDERSTORMS. LOCAL EMERGENCY MANAGERS REPORTED
FLOODING. MINOR FLOODING IS ONGOING OR EXPECTED TO BEGIN
SHORTLY IN THE ADVISORY AREA. POTENTIAL FOR ISOLATED MUD OR
ROCK SLIDES IN THE FOOTHILLS AS THE LINE OF STORMS MOVES
EASTWARD. BETWEEN 0.5 AND 1 INCH OF RAIN HAS FALLEN IN THE
LAST 6 HOURS.
- SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
SACRAMENTO, STOCKTON, MODESTO, ELK GROVE, ROSEVILLE, CITRUS
HEIGHTS, TRACY, FOLSOM, ROCKLIN, GALT, OAKDALE, AUBURN,
PLACERVILLE, SONORA, JACKSON, PALOMA, EL DORADO HILLS, FAIR
OAKS, CAMERON PARK AND CARMICHAEL.
- HTTP://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.
LAT...LON 3889 12147 3902 12119 3913 12094 3896 12086
3850 12063 3840 12058 3808 12042 3796 12037
3782 12063 3743 12135 3755 12138 3815 12154
3833 12158 3879 12170
KH
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