Alert archive / Arizona / Flash Flood Warnings in 2024
Flash Flood Warning 13, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Jul 17, 2024, 5:15 PM MST for Mohave County, Arizona; Clark 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 17, 2024, 5:15 PM MST (00:15 UTC)
- Expired
- Jul 17, 2024, 8:15 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, Clark County, NV
The radar
The Las Vegas radar (KESX), 79 km from the middle of the area, began a volume at 00:14 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, 0.3 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
- 61 J/kg
- Mixed-layer CIN
- -80 J/kg
- Mixed-layer LCL
- 4226 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 23 m²/s²
- 0-3 km storm-relative helicity
- 72 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
075
WGUS55 KVEF 180015
FFWVEF
AZC015-NVC003-180315-
/O.NEW.KVEF.FF.W.0013.240718T0015Z-240718T0315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Las Vegas NV
515 PM PDT Wed Jul 17 2024
The National Weather Service in Las Vegas has issued a
* Flash Flood Warning for...
Central Mohave County in northwestern Arizona...
Southeastern Clark County in southern Nevada...
* Until 815 PM PDT /815 PM MST/.
* At 515 PM PDT /515 PM MST/, Doppler radar indicated thunderstorms
producing heavy rain across the warned area. Up to 1 inch of rain
has fallen. The expected rainfall rate is 1.5 to 2 inches in 1
hour. 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...
Grand Canyon Ranch, Pierce Ferry And Antares Roads and Meadview.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3611 11412 3591 11397 3580 11381 3569 11402
3578 11414 3603 11419
FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
EXPECTED RAINFALL RATE...1.5-2 INCHES IN 1 HOUR
$$
Stessman2 follow-up statements
012
WGUS75 KVEF 180104
FFSVEF
Flash Flood Statement
National Weather Service Las Vegas NV
604 PM PDT Wed Jul 17 2024
AZC015-NVC003-180315-
/O.CON.KVEF.FF.W.0013.000000T0000Z-240718T0315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Mohave AZ-Clark NV-
604 PM PDT Wed Jul 17 2024 /604 PM MST Wed Jul 17 2024/
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 815 PM PDT /815 PM
MST/ THIS EVENING FOR CENTRAL MOHAVE AND SOUTHEASTERN CLARK
COUNTIES...
At 604 PM PDT /604 PM MST/, Doppler radar indicated thunderstorms
producing heavy rain across the warned area. Up to 1.5 inches of
rain have fallen. Flash flooding is ongoing or expected to begin
shortly.
HAZARD...Life-threatening flash flooding. Thunderstorms producing
flash flooding.
SOURCE...Radar.
IMPACT...Life-threatening flash flooding of low-water crossings,
creeks, normally dry washes and roads.
Some locations that will experience flash flooding include...
Grand Canyon Ranch, Pierce Ferry And Antares Roads and Meadview.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be aware of your surroundings and do not drive on flooded roads.
In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.
&&
LAT...LON 3611 11412 3591 11397 3580 11381 3569 11402
3578 11414 3603 11419
FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
$$
Stessman716
WGUS75 KVEF 180310
FFSVEF
Flash Flood Statement
National Weather Service Las Vegas NV
810 PM PDT Wed Jul 17 2024
AZC015-NVC003-180320-
/O.EXP.KVEF.FF.W.0013.000000T0000Z-240718T0315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Mohave AZ-Clark NV-
810 PM PDT Wed Jul 17 2024 /810 PM MST Wed Jul 17 2024/
...FLASH FLOOD WARNING WILL EXPIRE AT 815 PM PDT /815 PM MST/ THIS
EVENING FOR CENTRAL MOHAVE AND SOUTHEASTERN CLARK COUNTIES...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.
&&
LAT...LON 3611 11412 3591 11397 3580 11381 3569 11402
3578 11414 3603 11419
$$
StessmanThe office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 17, 5:05 PM MST | Areal Flood Advisory | VEF | Mohave | 10 min |
| Jul 17, 5:10 PM MST | Areal Flood Advisory | VEF | Mohave | 3 hr |
| Jul 18, 12:52 AM MST | Excessive Heat Warning | VEF | Mohave | 8 days |
| Jul 18, 2:28 PM MST | Flash Flood Warning | VEF | Mohave | 3 hr |
| Jul 18, 12:10 PM MST | Flash Flood Warning | VEF | Clark | 3 hr |
| Jul 18, 12:45 PM MST | Areal Flood Advisory | VEF | Clark | 3 hr |
| Jul 18, 1:11 PM MST | Flash Flood Warning | VEF | Clark | 3 hr |
Nearby
Flash Flood Warnings in Arizona, 2024Flash Flood Warnings in Nevada, 2024Every flash flood warning in 2024
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.