295 
WGUS56 KSGX 241445
FFWSGX
CAC071-242045-
/O.NEW.KSGX.FF.W.0032.251224T1445Z-251224T2045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service San Diego CA
645 AM PST Wed Dec 24 2025

The National Weather Service in San Diego has issued a

* Flash Flood Warning for...
  San Bernardino County in southern California...

* Until 1245 PM PST.

* At 645 AM PST, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1 and 2 inches of rain 
  have fallen. The expected rainfall rate is 0.75 to 1 inch in 1 
  hour. Additional rainfall amounts of 3 to 6 inches 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...
  San Bernardino, Fontana, Rialto, Hesperia, I-15 Through The Cajon 
  Pass, northern Rancho Cucamonga, Devore, Silverwood Lake Rec Area, 
  Hwy 18 Between San Bernardino And Crestline and Muscoy.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3414 11751 3441 11750 3440 11732 3416 11731

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
EXPECTED RAINFALL RATE...0.75-1 INCH IN 1 HOUR

$$

Munyan

748 
WGUS76 KSGX 241812
FFSSGX

Flash Flood Statement
National Weather Service San Diego CA
1012 AM PST Wed Dec 24 2025

CAC071-242045-
/O.CON.KSGX.FF.W.0032.000000T0000Z-251224T2045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
San Bernardino CA-
1012 AM PST Wed Dec 24 2025

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1245 PM PST THIS 
AFTERNOON FOR SAN BERNARDINO COUNTY...

At 1012 AM PST, While a brief lull in rainfall rates has occurred in 
the last hour or so, between 4 and 6 inches of rain have fallen and 
we have received numerous reports of flash flooding and mud/debris 
over roadways, including I-15 through the Cajon Pass. The current 
lull in heavy rainfall will be short lived as the main band of heavy 
rainfall will move into the area over the next 1 to 2 hours. 
Additional rainfall amounts of 2 to 5 inches are possible in the 
warned area. Flash flooding is ongoing or expected to begin shortly.

HAZARD...Life threatening flash flooding. Heavy rain 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...
  San Bernardino, Fontana, Rialto, Hesperia, I-15 Through The Cajon 
  Pass, northern Rancho Cucamonga, Devore, Silverwood Lake Rec Area, 
  Hwy 18 Between San Bernardino And Crestline and Muscoy.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3414 11751 3441 11750 3440 11732 3416 11731

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
EXPECTED RAINFALL RATE...0.5-1 INCH IN 1 HOUR

$$

Munyan

903 
WGUS56 KSGX 242020
FFWSGX
CAC071-242245-
/O.EXT.KSGX.FF.W.0032.000000T0000Z-251224T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service San Diego CA
1220 PM PST Wed Dec 24 2025

The National Weather Service in San Diego has extended the

* Flash Flood Warning for...
  San Bernardino County in southern California...

* Until 245 PM PST.

* At 1220 PM PST, Doppler radar indicated heavy rain across the 
  warned area. Between 4.5 and 7 inches of rain have fallen today. 
  The expected rainfall rate is 0.5 to 1 inch in 1 hour. Additional 
  rainfall amounts of 2 to 4 inches are possible in the warned area. 
  Flash flooding is ongoing or expected to begin shortly.

  HAZARD...Life threatening flash flooding. Heavy rain 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...
  San Bernardino, Fontana, Rialto, Hesperia, I-15 Through The Cajon 
  Pass, northern Rancho Cucamonga, Devore, Silverwood Lake Rec Area, 
  Hwy 18 Between San Bernardino And Crestline and Muscoy.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3414 11751 3441 11750 3440 11732 3416 11731

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
EXPECTED RAINFALL RATE...0.5-1 INCH IN 1 HOUR

$$

Munyan

935 
WGUS56 KSGX 242243
FFWSGX
CAC071-250015-
/O.EXT.KSGX.FF.W.0032.000000T0000Z-251225T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service San Diego CA
243 PM PST Wed Dec 24 2025

The National Weather Service in San Diego has extended the

* Flash Flood Warning for...
  San Bernardino County in southern California...

* Until 415 PM PST.

* At 243 PM PST, Doppler radar indicated heavy rain across the 
  warned area. Between 5.25 and 7 inches of rain have fallen. The 
  expected rainfall rate is 0.25 to 0.5 inches in 1 hour. Additional 
  rainfall amounts of 1 to 2 inches are possible in the warned area. 
  Flash flooding is ongoing or expected to begin shortly.

  HAZARD...Life threatening flash flooding. Heavy rain 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...
  San Bernardino, Fontana, Rialto, Hesperia, I-15 Through The Cajon 
  Pass, northern Rancho Cucamonga, Devore, Silverwood Lake Rec Area, 
  Hwy 18 Between San Bernardino And Crestline and Muscoy.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3414 11751 3441 11750 3440 11732 3416 11731

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
EXPECTED RAINFALL RATE...0.25-0.5 INCHES IN 1 HOUR

$$

Munyan

090 
WGUS56 KSGX 250006
FFWSGX
CAC071-250300-
/O.EXT.KSGX.FF.W.0032.000000T0000Z-251225T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service San Diego CA
406 PM PST Wed Dec 24 2025

The National Weather Service in San Diego has extended the

* Flash Flood Warning for...
  San Bernardino County in southern California...

* Until 700 PM PST.

* At 406 PM PST, Doppler radar indicated heavy rain across the 
  warned area. Between 6 and 8 inches of rain have fallen. The 
  expected rainfall rate is 0.25 to 0.5 inches in 1 hour. Additional 
  rainfall amounts of 0.5 to 1.5 inches are possible in the warned 
  area. Flash flooding is ongoing or expected to begin shortly.

  HAZARD...Life threatening flash flooding. Heavy rain 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...
  San Bernardino, Fontana, Rialto, Hesperia, I-15 Through The Cajon 
  Pass, northern Rancho Cucamonga, Devore, Silverwood Lake Rec Area, 
  Hwy 18 Between San Bernardino And Crestline and Muscoy.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3414 11751 3441 11750 3440 11732 3416 11731

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
EXPECTED RAINFALL RATE...0.25-0.5 INCHES IN 1 HOUR

$$

PS