Alert archive / California / Flash Flood Warnings in 2016
Flash Flood Warning 13, NWS San Diego, CA
NWS San Diego, CA issued this flash flood warning at Aug 4, 2016, 2:22 PM PDT for San Bernardino County, California. It was in force for 3 hr. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 4, 2016, 2:22 PM PDT (21:22 UTC)
- Expired
- Aug 4, 2016, 5:15 PM PDT
- 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 Edwards AFB radar (KEYX), 86 km from the middle of the area, began a volume at 21:24 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 4, 2:25 PM PDT | FLASH FLOOD | 4 Sw Lucerne Valley, CA | SPOTTER REPORTS 6 INCHES OF WATER ABOUT 50 FEET WIDE FLOWING DOWN BUENA VISTA ROAD. THERE'S ALSO DIRT AND ROCK ON THE ROADS, INCLUDING HIGHWAY 18 AND CUSTER ROAD. 1.5 INCHES OF TOTAL RAIN REPORTED. . |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
San Diego, CA (KNKX), launched 12:00Z, 9.4 hours before the alert went out and 190 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1135 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 4 m²/s²
- 0-3 km storm-relative helicity
- 10 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
424
WGUS56 KSGX 042122
FFWSGX
CAC071-050015-
/O.NEW.KSGX.FF.W.0013.160804T2122Z-160805T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN DIEGO CA
222 PM PDT THU AUG 4 2016
THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SAN BERNARDINO COUNTY IN SOUTHERN CALIFORNIA...
* UNTIL 515 PM PDT
* AT 220 PM PDT...A TRAINED WEATHER SPOTTER REPORTED HEAVY RAIN
ACROSS THE WARNED AREA...WITH 1 INCH OF RAIN FALLING IN 10
MINUTES. FLASH FLOODING WILL LIKELY BEGIN SHORTLY.
* SOME LOCATIONS THAT WILL LIKELY EXPERIENCE FLOODING INCLUDE...
LUCERNE VALLEY AND APPLE VALLEY...AND HIGHWAYS 18 AND 247.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
&&
LAT...LON 3459 11683 3436 11687 3427 11704 3440 11713
3461 11716 3465 11698
$$
JJT2 follow-up statements
036
WGUS76 KSGX 042214
FFSSGX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN DIEGO CA
314 PM PDT THU AUG 4 2016
CAC071-050015-
/O.CON.KSGX.FF.W.0013.000000T0000Z-160805T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SAN BERNARDINO CA-
314 PM PDT THU AUG 4 2016
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 515 PM PDT FOR SAN
BERNARDINO COUNTY...
AT 309 PM PDT...A TRAINED WEATHER SPOTTER REPORTED FLASH FLOODING
ALONG BUENA VISTA ROAD IN LUCERNE VALLEY. HEAVY RAIN IS ENDING IN
THE WARNED AREA AT THIS TIME...HOWEVER FLASH FLOODING IS POSSIBLE IN
THE WARNED AREA THROUGH 515 PM.
SOME LOCATIONS THAT WILL LIKELY EXPERIENCE FLOODING INCLUDE...
LUCERNE VALLEY AND APPLE VALLEY...AND HIGHWAYS 18 AND 247.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU
CAN DO SO SAFELY.
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNED AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY.
&&
LAT...LON 3459 11683 3436 11687 3427 11704 3440 11713
3461 11716 3465 11698
$$
JJT270
WGUS76 KSGX 042336
FFSSGX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN DIEGO CA
436 PM PDT THU AUG 4 2016
CAC071-042346-
/O.CAN.KSGX.FF.W.0013.000000T0000Z-160805T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SAN BERNARDINO CA-
436 PM PDT THU AUG 4 2016
...THE FLASH FLOOD WARNING FOR SAN BERNARDINO COUNTY IS CANCELLED...
THE HEAVY RAIN HAS ENDED FOR A WHILE...AND FLOODING IS NO LONGER
EXPECTED TO POSE A THREAT. PLEASE CONTINUE TO HEED ANY REMAINING
ROAD CLOSURES.
LAT...LON 3459 11683 3436 11687 3427 11704 3440 11713
3461 11716 3465 11698
$$
JJTThe office that day
Everything else NWS San Diego, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 4, 2:03 PM PDT | Areal Flood Advisory | SGX | San Bernardino | 3 hr |
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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.