Alert archive / California / Flash Flood Warnings in 2016
Flash Flood Warning 55, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Aug 2, 2016, 3:11 AM 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 2, 2016, 3:11 AM PDT (10:11 UTC)
- Expired
- Aug 2, 2016, 6:15 AM PDT
- In force
- 3 hr
- Issued by
- NWS Las Vegas, NV
- Area
- Storm-based polygon
- Flood severity
- None
County San Bernardino County, CA
The radar
The Las Vegas radar (KESX), 167 km from the middle of the area, began a volume at 10:11 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 2, 4:53 AM PDT | FLASH FLOOD | 3 Nw Big River, CA | CALIFORNIA HIGHWAY PATROL REPORTS A VEHICLE STRANDED ON STATE HIGHWAY 62 FROM FLASH FLOODING. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Phoenix, AZ (KPSR), launched 00:00Z, 10.2 hours before the alert went out and 241 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
- 2115 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- -2 m²/s²
- 0-3 km storm-relative helicity
- 61 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
431
WGUS55 KVEF 021011
FFWVEF
CAC071-021315-
/O.NEW.KVEF.FF.W.0055.160802T1011Z-160802T1315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
311 AM PDT TUE AUG 2 2016
THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTHEASTERN SAN BERNARDINO COUNTY IN SOUTHERN CALIFORNIA...
* UNTIL 615 AM PDT
* AT 310 AM PDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAIN ACROSS EXTREME SOUTHEAST SAN BERNARDINO COUNTY. FLASH
FLOODING IS EXPECTED TO BEGIN SHORTLY.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
PARKER DAM...HIGHWAY 95 AT MILE MARKER 29...EARP...
VIDAL JUNCTION AND BIG RIVER.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AND OTHER LOW LYING SPOTS.
&&
LAT...LON 3408 11478 3437 11476 3460 11449 3439 11449
3439 11425 3436 11423 3434 11417 3430 11414
3426 11413 3426 11416 3417 11425 3417 11429
3412 11437 3411 11441 3408 11444
$$
MORGAN3 follow-up statements
048
WGUS75 KVEF 021120
FFSVEF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
420 AM PDT TUE AUG 2 2016
CAC071-021315-
/O.CON.KVEF.FF.W.0055.000000T0000Z-160802T1315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SAN BERNARDINO CA-
420 AM PDT TUE AUG 2 2016
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 615 AM PDT FOR
SOUTHEASTERN SAN BERNARDINO COUNTY...
AT 419 AM PDT...DOPPLER RADAR INDICATED SCATTERED THUNDERSTORMS OVER
EXTREME SOUTHEAST SAN BERNARDINO COUNTY. THE HEAVIEST RAIN WAS
FALLING NEAR AND JUST NORTH OF HIGHWAY 62 EAST OF VIDAL JUNCTION.
FLASH FLOODING REMAINS POSSIBLE.
SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
PARKER DAM...HIGHWAY 95 AT MILE MARKER 29...EARP...VIDAL JUNCTION AND
BIG RIVER.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AND OTHER LOW LYING SPOTS.
&&
LAT...LON 3408 11478 3437 11476 3460 11449 3439 11449
3439 11425 3436 11423 3434 11417 3430 11414
3426 11413 3426 11416 3417 11425 3417 11429
3412 11437 3411 11441 3408 11444
$$
MORGAN179
WGUS75 KVEF 021216
FFSVEF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
516 AM PDT TUE AUG 2 2016
CAC071-021315-
/O.CON.KVEF.FF.W.0055.000000T0000Z-160802T1315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SAN BERNARDINO CA-
516 AM PDT TUE AUG 2 2016
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 615 AM PDT FOR
SOUTHEASTERN SAN BERNARDINO COUNTY...
AT 514 AM PDT...DOPPLER RADAR INDICATED THAT RAIN WAS DECREASING
OVER EXTREME SOUTHEAST SAN BERNARDINO COUNTY. HOWEVER, AT 453 AM
PDT, THE CALIFORNIA HIGHWAY PATROL REPORTED THAT DRIVERS WERE
STRANDED IN A FLOODED WASH AT MILE MARKER 137 ON HIGHWAY 62, EAST OF
VIDAL JUNCTION. FLOODING WILL CONTINUE UNTIL RUNOFF FROM EARLIER
HEAVY RAIN IS COMPLETE.
SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
HIGHWAY 62...HIGHWAY 95 AT MILE MARKER 29...EARP...
VIDAL JUNCTION AND BIG RIVER.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...FARMLAND...AND OTHER LOW LYING
SPOTS.
&&
LAT...LON 3408 11478 3437 11476 3460 11449 3439 11449
3439 11425 3436 11423 3434 11417 3430 11414
3426 11413 3426 11416 3417 11425 3417 11429
3412 11437 3411 11441 3408 11444
$$
MORGAN244
WGUS75 KVEF 021307
FFSVEF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
607 AM PDT TUE AUG 2 2016
CAC071-021315-
/O.EXP.KVEF.FF.W.0055.000000T0000Z-160802T1315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SAN BERNARDINO CA-
607 AM PDT TUE AUG 2 2016
...THE FLASH FLOOD WARNING FOR SOUTHEASTERN SAN BERNARDINO COUNTY
WILL EXPIRE AT 615 AM PDT...
AT 605 AM PDT, DOPPLER RADAR SHOWED ONLY LIGHT TO MODERATE RAIN
REMAINING OVER EXTREME SOUTHEAST SAN BERNARDINO COUNTY. HOWEVER, THE
CALIFORNIA HIGHWAY PATROL REPORTED AT LEAST ONE CAR STRANDED IN
FLOODING ON HIGHWAY 62 EAST OF VIDAL JUNCTION. PLEASE CONTINUE TO
HEED ANY REMAINING ROAD CLOSURES.
LAT...LON 3408 11478 3437 11476 3460 11449 3439 11449
3439 11425 3436 11423 3434 11417 3430 11414
3426 11413 3426 11416 3417 11425 3417 11429
3412 11437 3411 11441 3408 11444
$$
MORGANThe office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 2, 2:41 AM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Aug 2, 1:56 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 49 min |
| Aug 2, 2:38 PM PDT | Flash Flood Warning | VEF | San Bernardino | 6 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.