Alert archive / Arizona / Flash Flood Warnings in 2017
Flash Flood Warning 76, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Aug 3, 2017, 8:19 PM MST for 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 3, 2017, 8:19 PM MST (03:19 UTC)
- Expired
- Aug 3, 2017, 11:15 PM MST
- In force
- 3 hr
- Issued by
- NWS Las Vegas, NV
- Area
- Storm-based polygon
- Flood severity
- None
County Mohave County, AZ
The radar
The Cedar City radar (KICX), 110 km from the middle of the area, began a volume at 03:22 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
Las Vegas, NV (KVEF), launched 00:00Z, 3.3 hours before the alert went out and 173 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
- 2835 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- 2 m²/s²
- 0-3 km storm-relative helicity
- 38 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
069 WGUS55 KVEF 040319 FFWVEF AZC015-040615- /O.NEW.KVEF.FF.W.0076.170804T0319Z-170804T0615Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Las Vegas NV 819 PM MST THU AUG 3 2017 The National Weather Service in Las Vegas has issued a * Flash Flood Warning for... North central Mohave County in northwestern Arizona... * Until 1115 PM MST * At 818 PM MST, Doppler radar indicated thunderstorms producing heavy rain across the Virgin River Gorge on Interstate 15. Flash flooding is expected to begin shortly. * Some locations that will experience flooding include... Beaver Dam, Littlefield, Virgin River Gorge and Virgin River Campground. PRECAUTIONARY/PREPAREDNESS ACTIONS... Be especially cautious at night when it is harder to recognize the dangers of flooding. && LAT...LON 3675 11344 3674 11405 3700 11405 3700 11346 $$ ASG
2 follow-up statements
156 WGUS75 KVEF 040402 FFSVEF Flash Flood Statement National Weather Service Las Vegas NV 902 PM MST THU AUG 3 2017 AZC015-040615- /O.CON.KVEF.FF.W.0076.000000T0000Z-170804T0615Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Mohave AZ- 902 PM MST THU AUG 3 2017 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1115 PM MST FOR NORTH CENTRAL MOHAVE COUNTY... At 900 PM MST, Doppler radar indicated thunderstorms producing moderate to heavy rain over portions of the Virgin River Gorge. The heaviest rain has moved east into Lincoln County, but there will continue to be scattered areas of heavy rain through 1100 pm. Some locations that will experience flooding include... Beaver Dam, Littlefield, Virgin River Gorge and Virgin River Campground. PRECAUTIONARY/PREPAREDNESS ACTIONS... Be especially cautious at night when it is harder to recognize the dangers of flooding. && LAT...LON 3675 11344 3674 11405 3700 11405 3700 11346 $$ ASG
476 WGUS75 KVEF 040608 FFSVEF Flash Flood Statement National Weather Service Las Vegas NV 1108 PM MST THU AUG 3 2017 AZC015-040618- /O.EXP.KVEF.FF.W.0076.000000T0000Z-170804T0615Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Mohave AZ- 1108 PM MST THU AUG 3 2017 ...THE FLASH FLOOD WARNING FOR NORTH CENTRAL MOHAVE COUNTY WILL EXPIRE AT 1115 PM MST... The heavy rain has ended. Flooding is no longer expected to pose a threat. Please continue to heed any remaining road closures. LAT...LON 3675 11344 3674 11405 3700 11405 3700 11346 $$ AA
The office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 3, 5:18 PM MST | Areal Flood Advisory | VEF | Mohave | 3 hr |
| Aug 3, 5:29 PM MST | Flash Flood Warning | VEF | Mohave | 3 hr |
| Aug 3, 7:34 PM MST | Areal Flood Advisory | VEF | Mohave | 3 hr |
Nearby
Flash Flood Warnings in Arizona, 2017Every flash flood warning in 2017
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.