Alert archive / California / Flash Flood Warnings in 2001
Flash Flood Warning 11, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Jul 7, 2001, 4:26 PM PDT for Inyo County, San Bernardino County, California; Clark County, Nye County, Nevada. 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 the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.
The facts
- Issued
- Jul 7, 2001, 4:26 PM PDT (23:26 UTC)
- Expired
- Jul 7, 2001, 7:30 PM PDT
- In force
- 3 hr
- Issued by
- NWS Las Vegas, NV
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Inyo County, CA, San Bernardino County, CA, Clark County, NV, Nye County, NV
The nearest sounding before it
Mercury/Desert R, NV (KDRA), launched 12:00Z, 11.4 hours before the alert went out and 143 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
- 139 J/kg
- Mixed-layer CIN
- -69 J/kg
- Mixed-layer LCL
- 950 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 56 m²/s²
- 0-3 km storm-relative helicity
- 38 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS55 KVEF 072327
FFWVEF
CAC027-071-NVC003-023-080230-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
426 PM PDT SAT JUL 7 2001
THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
EXTREME SOUTHEASTERN INYO COUNTY IN EASTERN CALIFORNIA
EXTREME SOUTH CENTRAL NYE COUNTY IN SOUTH CENTRAL NEVADA
THIS INCLUDES THE FOLLOWING LOCATION...PAHRUMP
NORTHEASTERN SAN BERNARDINO COUNTY IN SOUTHEAST CALIFORNIA
THIS INCLUDES THE FOLLOWING LOCATIONS...MOUNTAIN PASS...NIPTON...
PRIMM
SOUTHWESTERN CLARK COUNTY IN SOUTHERN NEVADA
THIS INCLUDES THE FOLLOWING LOCATION...SANDY VALLEY
* UNTIL 730 PM PDT
* AT 420 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A LARGE AREA OF THUNDERSTORMS WITH VERY HEAVY OVER NORTHEAST SAN
BERNARDINO NEAR MOUNTAIN PASS AND OVER THE MOJAVE NATIONAL
PRESERVE. THE STORMS ARE MOVING NORTH AT 10 MPH AND WILL MOVE
INTO SOUTHWEST CLARK AND SOUTHERN NYE COUNTIES IN NEVADA AND
EXTREME SOUTHEAST INYO COUNTY.
EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF
NORMALLY DRY WASHES AND ARROYOS...AS WELL AS MANY RURAL ROADS.
EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF WASHES
AND NARROW CANYONS. THE HEAVY RAINS COULD ALSO TRIGGER ROCK AND
MUDSLIDES IN STEEP TERRAIN.
LAT...LON 3473 11566 3490 11476 3598 11552 3638 11626
3545 11611The office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 12:49 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Jul 7, 12:53 PM PDT | Tornado Warning | VEF | San Bernardino | 27 min |
| Jul 7, 1:35 PM PDT | Tornado Warning | VEF | San Bernardino | 40 min |
| Jul 7, 2:03 PM PDT | Flash Flood Warning | VEF | Clark | 3 hr |
| Jul 7, 2:30 PM PDT | Flash Flood Warning | VEF | Clark | 3 hr |
Nearby
Flash Flood Warnings in California, 2001Flash Flood Warnings in Nevada, 2001Every flash flood warning in 2001
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.