Alert archive / California / Flash Flood Warnings in 2016
Flash Flood Warning 49, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Aug 1, 2016, 2:29 PM PDT 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
- Aug 1, 2016, 2:29 PM PDT (21:29 UTC)
- Expired
- Aug 1, 2016, 5:30 PM 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), 79 km from the middle of the area, began a volume at 21:30 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
Las Vegas, NV (KVEF), launched 12:00Z, 9.5 hours before the alert went out and 134 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
- 365 J/kg
- Mixed-layer CIN
- -262 J/kg
- Mixed-layer LCL
- 1839 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- -22 m²/s²
- 0-3 km storm-relative helicity
- 27 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
790
WGUS55 KVEF 012129
FFWVEF
CAC071-020030-
/O.NEW.KVEF.FF.W.0049.160801T2129Z-160802T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
229 PM PDT MON AUG 1 2016
THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
CENTRAL SAN BERNARDINO COUNTY IN SOUTHERN CALIFORNIA...
* UNTIL 530 PM PDT
* AT 227 PM PDT...DOPPLER RADAR INDICATED HEAVY RAIN ACROSS THE
WARNED AREA. ESTIMATED UP TO TWO INCHES OF RAIN HAVE ALREADY
FALLEN. FLASH FLOODING IS ALREADY OCCURRING ON MORNING STAR MINE
ROAD, CIMA ROAD AND KELSO CIMA ROAD.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
KELSO...CIMA...MITCHELL CAVERNS...
BLACK CANYON EQUESTRIAN CAMPGROUND...
HOLE IN THE WALL CAMPGROUND AND MID HILLS CAMPGROUND.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE
POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO CROSS FLOODED
ROADS. FIND AN ALTERNATE ROUTE.
&&
LAT...LON 3528 11535 3507 11534 3484 11549 3496 11578
3538 11561 3538 11539
$$
BP2 follow-up statements
952
WGUS75 KVEF 012221
FFSVEF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
321 PM PDT MON AUG 1 2016
CAC071-020030-
/O.CON.KVEF.FF.W.0049.000000T0000Z-160802T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SAN BERNARDINO CA-
321 PM PDT MON AUG 1 2016
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 530 PM PDT FOR
CENTRAL SAN BERNARDINO COUNTY...
AT 320 PM PDT...DOPPLER RADAR INDICATED HEAVY RAIN HAS WEAKENED
ACROSS THE WARNED AREA. DUE TO EARLIER HEAVY RAINFALL FLASH FLOODING
IS POTENTIALLY ALREADY OCCURRING ON CIMA, MORNING STAR MINE AND
KELSO CIMA ROADS.
SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
KELSO...CIMA...MITCHELL CAVERNS...
BLACK CANYON EQUESTRIAN CAMPGROUND...
HOLE IN THE WALL CAMPGROUND AND MID HILLS CAMPGROUND.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE
POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO CROSS FLOODED
ROADS. FIND AN ALTERNATE ROUTE.
&&
LAT...LON 3528 11535 3507 11534 3484 11549 3496 11578
3538 11561 3538 11539
$$
BP199
WGUS75 KVEF 020021
FFSVEF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
521 PM PDT MON AUG 1 2016
CAC071-020031-
/O.EXP.KVEF.FF.W.0049.000000T0000Z-160802T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SAN BERNARDINO CA-
521 PM PDT MON AUG 1 2016
...THE FLASH FLOOD WARNING FOR CENTRAL SAN BERNARDINO COUNTY WILL
EXPIRE AT 530 PM PDT...
THE HEAVY RAIN HAS ENDED. FLOODING IS NO LONGER EXPECTED TO POSE A
THREAT. PLEASE CONTINUE TO HEED ANY REMAINING ROAD CLOSURES.
LAT...LON 3528 11535 3507 11534 3484 11549 3496 11578
3538 11561 3538 11539
$$
BPThe office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 31, 5:37 PM PDT | Areal Flood Advisory | VEF | Inyo | 3 hr |
| Aug 1, 1:54 PM PDT | Areal Flood Advisory | VEF | Inyo, San Bernardino | 3 hr |
| Aug 1, 2:47 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Aug 1, 3:44 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Aug 1, 4:51 PM PDT | Flash Flood Warning | VEF | 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.