Alert archive / California / Flash Flood Warnings in 2016
Flash Flood Warning 106, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Aug 22, 2016, 8:46 PM PDT for San Bernardino County, California; Mohave County, Arizona. 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 22, 2016, 8:46 PM PDT (03:46 UTC)
- Expired
- Aug 22, 2016, 11:45 PM PDT
- In force
- 3 hr
- Issued by
- NWS Las Vegas, NV
- Area
- Storm-based polygon
- Flood severity
- None
Counties Mohave County, AZ, San Bernardino County, CA
The radar
The Las Vegas radar (KESX), 108 km from the middle of the area, began a volume at 03:45 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 00:00Z, 3.8 hours before the alert went out and 194 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
- 472 J/kg
- Mixed-layer CIN
- -11 J/kg
- Mixed-layer LCL
- 3384 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 17 m²/s²
- 0-3 km storm-relative helicity
- 99 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
927 WGUS55 KVEF 230346 FFWVEF AZC015-CAC071-230645- /O.NEW.KVEF.FF.W.0106.160823T0346Z-160823T0645Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE LAS VEGAS NV 846 PM PDT MON AUG 22 2016 THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A * FLASH FLOOD WARNING FOR... SOUTHWESTERN MOHAVE COUNTY IN NORTHWESTERN ARIZONA... EAST CENTRAL SAN BERNARDINO COUNTY IN SOUTHERN CALIFORNIA... * UNTIL 1145 PM PDT/1145 PM MST/ * AT 843 PM PDT/843 PM MST/...DOPPLER RADAR CONTINUED TO INDICATE THUNDERSTORMS PRODUCING HEAVY RAIN FROM NEEDLES TO TOPOCK AND HIGHWAY 95 NEAR AND SOUTH OF NEEDLES. FLASH FLOODING IS EXPECTED TO CONTINUE. THIS WARNING REPLACES AN AREA COVERED IN A PREVIOUS WARNING. * SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... TOPOCK AND NEEDLES. PRECAUTIONARY/PREPAREDNESS ACTIONS... TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD DEATHS OCCUR IN VEHICLES. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODING. && LAT...LON 3485 11509 3483 11420 3458 11442 3457 11522 $$ JS
1 follow-up statement
579 WGUS75 KVEF 230644 FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 1144 PM PDT MON AUG 22 2016 AZC015-CAC071-230651- /O.EXP.KVEF.FF.W.0106.000000T0000Z-160823T0645Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ MOHAVE AZ-SAN BERNARDINO CA- 1144 PM PDT MON AUG 22 2016 ...THE FLASH FLOOD WARNING FOR SOUTHWESTERN MOHAVE AND EAST CENTRAL SAN BERNARDINO COUNTIES WILL EXPIRE AT 1145 PM PDT/1145 PM MST/... THE HEAVY RAIN HAS TAPERED OFF TO LIGHT OR MODERATE SHOWERS OVER THE AREA FROM ESSEX TO NEEDLES AND TOPOCK. FLOODING IS NO LONGER EXPECTED TO POSE A THREAT. PLEASE CONTINUE TO HEED ANY REMAINING ROAD CLOSURES. LAT...LON 3485 11509 3483 11420 3458 11442 3457 11522 $$ JA
The office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 22, 5:45 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Aug 22, 6:20 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Aug 22, 8:31 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Aug 22, 9:44 PM PDT | Areal Flood Advisory | VEF | San Bernardino | 3 hr |
| Aug 22, 5:03 PM PDT | Flash Flood Warning | VEF | Mohave | 6 hr |
| Aug 22, 8:19 PM PDT | Severe Thunderstorm Warning | VEF | Mohave | 41 min |
| Aug 22, 8:22 PM PDT | Flash Flood Warning | VEF | Mohave | 3 hr |
| Aug 22, 8:54 PM PDT | Severe Thunderstorm Warning | VEF | Mohave | 51 min |
| Aug 22, 9:42 PM PDT | Severe Thunderstorm Warning | VEF | Mohave | 33 min |
| Aug 22, 9:58 PM PDT | Flash Flood Warning | VEF | Mohave | 3 hr |
| Aug 22, 10:58 PM PDT | Areal Flood Advisory | VEF | Mohave | 3 hr |
| Aug 22, 11:00 PM PDT | Areal Flood Warning | VEF | Mohave | 24 hr |
| Aug 22, 11:16 PM PDT | Areal Flood Advisory | VEF | Mohave | 119 min |
Nearby
Flash Flood Warnings in California, 2016Flash Flood Warnings in Arizona, 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.