Alert archive / Arizona / Flash Flood Warnings in 2021
Flash Flood Warning 82, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Jul 29, 2021, 5:12 PM MST for Mohave County, Arizona. It was in force for 2 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 29, 2021, 5:12 PM MST (00:12 UTC)
- Expired
- Jul 29, 2021, 7:37 PM MST
- In force
- 2 hr
- Issued by
- NWS Las Vegas, NV
- Area
- Storm-based polygon
- Damage threat
- Considerable
- Flood severity
- None
County Mohave County, AZ
The radar
The Las Vegas radar (KESX), 61 km from the middle of the area, began a volume at 00:12 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, 0.2 hours before the alert went out and 124 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
- 175 J/kg
- Mixed-layer CIN
- -39 J/kg
- Mixed-layer LCL
- 3675 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- -12 m²/s²
- 0-3 km storm-relative helicity
- -6 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
525
WGUS55 KVEF 300012
FFWVEF
AZC015-300315-
/O.NEW.KVEF.FF.W.0082.210730T0012Z-210730T0315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Las Vegas NV
512 PM PDT Thu Jul 29 2021
The National Weather Service in Las Vegas has issued a
* Flash Flood Warning for...
West Central Mohave County in northwestern Arizona...
* Until 815 PM MST.
* At 512 PM MST, Doppler radar indicated thunderstorms producing
heavy rain across Pierce Ferry Rd and Greggs Hideout Road. Flash
flooding is ongoing or expected to begin shortly.
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...
Temple Bar Campground, Pierce Ferry And Antares Roads and Temple
Bar.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3569 11416 3566 11446 3576 11461 3605 11458
3609 11432 3608 11431 3606 11431 3605 11427
3602 11425 3602 11415 3604 11415 3601 11408
3584 11401
FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
$$
CP1 follow-up statement
681
WGUS75 KVEF 300237
FFSVEF
Flash Flood Statement
National Weather Service Las Vegas NV
737 PM PDT Thu Jul 29 2021
AZC015-300247-
/O.CAN.KVEF.FF.W.0082.000000T0000Z-210730T0315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Mohave AZ-
737 PM MST Thu Jul 29 2021
...FLASH FLOOD WARNING IS CANCELLED FOR WEST CENTRAL MOHAVE COUNTY...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.
LAT...LON 3569 11416 3566 11446 3576 11461 3605 11458
3609 11432 3608 11431 3606 11431 3605 11427
3602 11425 3602 11415 3604 11415 3601 11408
3584 11401
$$
CPThe office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 29, 6:04 PM MST | Severe Thunderstorm Warning | VEF | Mohave | 56 min |
| Jul 30, 12:04 PM MST | Areal Flood Advisory | VEF | Mohave | 3 hr |
| Jul 30, 12:36 PM MST | Flash Flood Warning | VEF | Mohave | 3 hr |
| Jul 30, 1:14 PM MST | Severe Thunderstorm Warning | VEF | Mohave | 61 min |
| Jul 30, 2:22 PM MST | Flash Flood Warning | VEF | Mohave | 3 hr |
| Jul 30, 4:17 PM MST | Flash Flood Warning | VEF | Mohave | 3 hr |
Nearby
Flash Flood Warnings in Arizona, 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.