Alert archive / California / Flash Flood Warnings in 2016
Flash Flood Warning 8, NWS San Diego, CA
NWS San Diego, CA issued this flash flood warning at Jan 31, 2016, 1:59 PM PST for San Bernardino County, California. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jan 31, 2016, 1:59 PM PST (21:59 UTC)
- Expired
- Jan 31, 2016, 5:00 PM PST
- In force
- 3 hr
- Issued by
- NWS San Diego, CA
- Area
- Storm-based polygon
- Flood severity
- None
County San Bernardino County, CA
The radar
The Santa Ana Mts radar (KSOX), 57 km from the middle of the area, began a volume at 21:59 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
San Diego, CA (KNKX), launched 12:00Z, 10.0 hours before the alert went out and 161 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 2 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 482 m above ground
- 0-6 km bulk shear
- 86 kt
- 0-1 km storm-relative helicity
- 33 m²/s²
- 0-3 km storm-relative helicity
- 128 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
540
WGUS56 KSGX 312159
FFWSGX
CAC071-010100-
/O.NEW.KSGX.FF.W.0008.160131T2159Z-160201T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN DIEGO CA
159 PM PST SUN JAN 31 2016
THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SAN BERNARDINO COUNTY IN SOUTHERN CALIFORNIA...
* UNTIL 500 PM PST
* AT 158 PM PST...DOPPLER RADAR INDICATED SHOWERS AND THUNDERSTORMS
PRODUCING HEAVY RAIN ACROSS THE WARNED AREA. UP TO TWO INCHES OF
RAIN HAVE ALREADY FALLEN. ADDITIONAL RAINFALL OF ONE INCH LIKELY.
FLASH FLOODING WILL LIKELY BEGIN SHORTLY. EXCESSIVE RAINFALL OVER
THE WARNED AREA WILL CAUSE MUD SLIDES NEAR STEEP TERRAIN. THE MUD
SLIDE CAN CONSIST OF ROCK...MUD...VEGETATION AND OTHER LOOSE
MATERIALS.
* SOME LOCATIONS THAT WILL LIKELY EXPERIENCE FLOODING INCLUDE...
SAN BERNARDINO...FONTANA...RIALTO...HESPERIA...APPLE VALLEY...
REDLANDS...WRIGHTWOOD...HWY 2 BETWEEN PHELAN AND WRIGHTWOOD...I-15
THROUGH THE CAJON PASS AND LAKE ARROWHEAD.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.
&&
LAT...LON 3444 11707 3410 11700 3405 11706 3408 11718
3413 11731 3411 11770 3429 11764 3438 11765
3448 11730
$$
JMB2 follow-up statements
071
WGUS76 KSGX 312258
FFSSGX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN DIEGO CA
258 PM PST SUN JAN 31 2016
CAC071-010100-
/O.CON.KSGX.FF.W.0008.000000T0000Z-160201T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SAN BERNARDINO CA-
258 PM PST SUN JAN 31 2016
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 500 PM PST FOR SAN
BERNARDINO COUNTY...
AT 256 PM PST...DOPPLER RADAR INDICATED HEAVY RAIN ACROSS THE WARNED
AREA. UP TO TWO AND A HALF INCHES OF RAIN HAVE ALREADY FALLEN. FLASH
FLOODING COULD BEGIN AT ANY TIME.
EXCESSIVE RAINFALL OVER THE WARNED AREA COULD CAUSE MUD SLIDES NEAR
STEEP TERRAIN. THE MUD SLIDES CAN CONSIST OF ROCK...MUD...VEGETATION
AND OTHER LOOSE MATERIALS.
SOME LOCATIONS THAT WILL LIKELY EXPERIENCE FLOODING INCLUDE...
SAN BERNARDINO...FONTANA...RIALTO...HESPERIA...APPLE VALLEY...
REDLANDS...WRIGHTWOOD...HWY 2 BETWEEN PHELAN AND WRIGHTWOOD...I-15
THROUGH THE CAJON PASS AND LAKE ARROWHEAD.
RAINFALL IS BEGINNNG TO DECREASE SOMEWHAT...ALTHOUGH ADDITIONAL
RAINFALL AMOUNTS OF ONE HALF TO THREE-QUARTERS OF AN INCH ARE
POSSIBLE IN THE WARNED AREA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.
&&
LAT...LON 3444 11707 3410 11700 3405 11706 3408 11718
3413 11731 3411 11770 3429 11764 3438 11765
3448 11730
$$
TS523
WGUS76 KSGX 010101
FFSSGX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN DIEGO CA
501 PM PST SUN JAN 31 2016
CAC071-010111-
/O.EXP.KSGX.FF.W.0008.000000T0000Z-160201T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SAN BERNARDINO CA-
501 PM PST SUN JAN 31 2016
...THE FLASH FLOOD WARNING FOR SAN BERNARDINO COUNTY HAS EXPIRED...
THE HEAVY RAIN HAS ENDED...AND FLOODING IS NO LONGER EXPECTED TO
POSE A THREAT. WATER WILL BE SLOW TO RECEDE AND SOME LOW WATER
CROSSINGS MAY STILL BE FLOODED THIS EVENING.
LAT...LON 3444 11707 3410 11700 3405 11706 3408 11718
3413 11731 3411 11770 3429 11764 3438 11765
3448 11730
$$
JMBThe office that day
Everything else NWS San Diego, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 30, 9:49 PM PST | Gale Warning | SGX | 44 hr | |
| Jan 30, 9:58 PM PST | High Surf Advisory | SGX | Orange, San Diego | 51 hr |
| Jan 31, 12:43 PM PST | Areal Flood Advisory | SGX | San Bernardino | 3 hr |
| Jan 31, 1:38 PM PST | Severe Thunderstorm Warning | SGX | Orange | 82 min |
| Jan 31, 1:42 PM PST | Special Marine Warning | SGX | 63 min | |
| Jan 31, 1:48 PM PST | Severe Thunderstorm Warning | SGX | Riverside, San Diego | 87 min |
| Jan 31, 3:22 PM PST | Severe Thunderstorm Warning | SGX | San Diego | 83 min |
Nearby
Flash Flood Warnings in California, 2016Every flash flood warning in 2016
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.