Alert archive / California / Flash Flood Warnings in 2005
Flash Flood Warning 71, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Oct 18, 2005, 5:18 AM 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
- Oct 18, 2005, 5:18 AM PDT (12:18 UTC)
- Expired
- Oct 18, 2005, 8:15 AM PDT
- In force
- 3 hr
- Issued by
- NWS Las Vegas, NV
- Area
- Counties, with a storm outline in the text
County San Bernardino County, CA
The radar
The Las Vegas radar (KESX), 92 km from the middle of the area, began a volume at 12:22 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
Mercury/Desert R, NV (KDRA), launched 12:00Z, 0.3 hours before the alert went out and 185 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
- 1070 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 122 m²/s²
- 0-3 km storm-relative helicity
- 152 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS55 KVEF 181221 FFWVEF CAC071-181515- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE LAS VEGAS NV 518 AM PDT TUE OCT 18 2005 THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A * FLASH FLOOD WARNING FOR... CENTRAL SAN BERNARDINO COUNTY IN SOUTHEAST CALIFORNIA * UNTIL 815 AM PDT * AT 511 AM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED FLASH FLOODING FROM THUNDERSTORMS OVER CENTRAL SAN BERNARDINO COUNTY...MOVING NORTH AT 30 MPH. FLOODING OF THE MITCHELL CAVERNS AND WINDING STAIR CAVERNS ACCESS ROAD IS OCCURRING. OTHER ROADS WITHIN THE MOJAVE NATIONAL PRESERVE WILL ALSO LIKELY FLOOD. EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS AND DESERT ROADS. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND. IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS FLOODED ROADS. FIND ALTERNATE ROUTES. IT ONLY TAKES A FEW INCHES OF SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY. LAT...LON 3477 11561 3485 11502 3539 11524 3530 11586 $$ PIERCE
1 follow-up statement
000 WGUS75 KVEF 181329 FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 629 AM PDT TUE OCT 18 2005 CAC071-181515- SAN BERNARDINO CA- 629 AM PDT TUE OCT 18 2005 ...A FLASH FLOOD WARNING CONTINUES UNTIL 815 AM PDT FOR EAST CENTRAL SAN BERNARDINO COUNTY...INCLUDING THE MOJAVE NATIONAL PRESERVE AT 624 AM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE THUNDERSTORMS REDEVELOPING OVER THE SAME AREA OF THE MOJAVE NATIONAL PRESERVE PRODUCING FLASH FLOODING. TRAVEL INTO THE MOJAVE NATIONAL PRESERVE TODAY IS NOT RECOMMENDED AS MANY ROAD WILL BE FLOODED OR POSSIBLY BLOCKED BY MUD AND DEBRIS. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND. LAT...LON 3475 11559 3490 11478 3542 11522 3536 11582 $$ PIERCE
The office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 17, 7:44 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Oct 17, 9:28 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 26 min |
| Oct 17, 10:40 PM PDT | Flash Flood Warning | VEF | San Bernardino | 110 min |
| Oct 18, 3:18 AM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 33 min |
| Oct 18, 3:31 AM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 44 min |
| Oct 18, 3:54 AM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
Nearby
Flash Flood Warnings in California, 2005Every flash flood warning in 2005
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.