Alert archive / Arizona / Flash Flood Warnings in 2021
Flash Flood Warning 63, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Jul 25, 2021, 5:37 PM MST for Mohave County, Arizona; Lincoln 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 as issued.
The facts
- Issued
- Jul 25, 2021, 5:37 PM MST (00:37 UTC)
- Expired
- Jul 25, 2021, 8:45 PM MST
- In force
- 3 hr
- Issued by
- NWS Las Vegas, NV
- Area
- Storm-based polygon
- Damage threat
- Considerable
- Flood severity
- None
Counties Mohave County, AZ, Lincoln County, NV
The radar
The Cedar City radar (KICX), 140 km from the middle of the area, began a volume at 00:39 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, 0.6 hours before the alert went out and 137 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
- 707 J/kg
- Mixed-layer CIN
- -44 J/kg
- Mixed-layer LCL
- 2729 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 17 m²/s²
- 0-3 km storm-relative helicity
- 81 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
326
WGUS55 KVEF 260037
FFWVEF
AZC015-NVC017-260345-
/O.NEW.KVEF.FF.W.0063.210726T0037Z-210726T0345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Las Vegas NV
537 PM PDT Sun Jul 25 2021
The National Weather Service in Las Vegas has issued a
* Flash Flood Warning for...
Northwestern Mohave County in northwestern Arizona...
Southeastern Lincoln County in south central Nevada...
* Until 845 PM MST /845 PM PDT/.
* At 537 PM MST /537 PM PDT/, Doppler radar indicated thunderstorms
producing heavy rain across the warned area. Flash flooding is
ongoing or expected to begin shortly. Heavy rain of 1-1.5 inches
has fallen in the Meadow Valley Wash. Additional rain of up to 1
inch is possible.
HAZARD...Life-threatening flash flooding. Thunderstorms
producing flash flooding.
SOURCE...Radar.
IMPACT...Life-threatening flash flooding of low-water
crossings, creeks, normally dry washes and roads.
* Some locations that will experience flash flooding include...
Caliente, Cabin Pines Campground, Beaver Dam State Park,
Kershaw-Ryan Campground, Carp and Elgin.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3685 11469 3737 11465 3770 11452 3752 11406
3700 11405 3700 11403 3685 11403
FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
$$
DB1 follow-up statement
116
WGUS75 KVEF 260338
FFSVEF
Flash Flood Statement
National Weather Service Las Vegas NV
838 PM PDT Sun Jul 25 2021
AZC015-NVC017-260348-
/O.EXP.KVEF.FF.W.0063.000000T0000Z-210726T0345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Mohave AZ-Lincoln NV-
838 PM MST Sun Jul 25 2021 /838 PM PDT Sun Jul 25 2021/
...FLASH FLOOD WARNING WILL EXPIRE AT 845 PM MST/845 PM PDT/ THIS
EVENING FOR NORTHWESTERN MOHAVE AND SOUTHEASTERN LINCOLN COUNTIES...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.
A Flash Flood Watch remains in effect until 1200 AM MST/1200 AM PDT
for portions of northwest Arizona, southeast California and southern
Nevada.
LAT...LON 3685 11469 3737 11465 3770 11452 3752 11406
3700 11405 3700 11403 3685 11403
$$
CPThe office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 25, 5:04 PM MST | Flash Flood Warning | VEF | Mohave | 5 hr |
| Jul 25, 5:06 PM MST | Severe Thunderstorm Warning | VEF | Mohave | 54 min |
| Jul 25, 5:12 PM MST | Dust Storm Warning | VEF | Mohave | 63 min |
| Jul 25, 6:01 PM MST | Severe Thunderstorm Warning | VEF | Mohave | 59 min |
| Jul 25, 7:08 PM MST | Severe Thunderstorm Warning | VEF | Mohave | 52 min |
| Jul 25, 7:57 PM MST | Severe Thunderstorm Warning | VEF | Mohave | 63 min |
| Jul 25, 8:59 PM MST | Severe Thunderstorm Warning | VEF | Mohave | 61 min |
| Jul 25, 10:26 PM MST | Areal Flood Warning | VEF | Mohave | 8 hr |
| Jul 26, 1:51 PM MST | Flash Flood Warning | VEF | Mohave | 3 hr |
| Jul 25, 6:06 PM MST | Severe Thunderstorm Warning | VEF | Lincoln | 39 min |
| Jul 25, 8:09 PM MST | Flash Flood Warning | VEF | Clark | 3 hr |
| Jul 25, 8:59 PM MST | Flash Flood Warning | VEF | Clark | 3 hr |
| Jul 25, 9:55 PM MST | Severe Thunderstorm Warning | VEF | Clark, Nye | 50 min |
| Jul 26, 10:20 AM MST | Flash Flood Warning | VEF | Clark | 3 hr |
| Jul 26, 10:44 AM MST | Flash Flood Warning | VEF | Clark | 3 hr |
| Jul 26, 11:32 AM MST | Flash Flood Warning | VEF | Clark, Nye | 4 hr |
| Jul 26, 12:29 PM MST | Flash Flood Warning | VEF | Nye | 3 hr |
| Jul 26, 12:40 PM MST | Flash Flood Warning | VEF | Nye | 3 hr |
| Jul 26, 1:28 PM MST | Flash Flood Warning | VEF | Lincoln | 3 hr |
| Jul 26, 2:05 PM MST | Severe Thunderstorm Warning | VEF | Lincoln | 40 min |
| Jul 26, 4:30 PM MST | Flash Flood Warning | VEF | Lincoln | 2 hr |
| Jul 26, 4:34 PM MST | Severe Thunderstorm Warning | VEF | Lincoln | 41 min |
Nearby
Flash Flood Warnings in Arizona, 2021Flash Flood Warnings in Nevada, 2021Every flash flood warning in 2021
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.