Alert archive / Arizona / Flash Flood Warnings in 2017
Flash Flood Warning 75, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Aug 3, 2017, 5:29 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, 5:29 PM MST (00:29 UTC)
- Expired
- Aug 3, 2017, 8:30 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 Las Vegas radar (KESX), 108 km from the middle of the area, began a volume at 00:29 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, 0.5 hours before the alert went out and 168 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.
869 WGUS55 KVEF 040029 FFWVEF AZC015-040330- /O.NEW.KVEF.FF.W.0075.170804T0029Z-170804T0330Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Las Vegas NV 529 PM MST THU AUG 3 2017 The National Weather Service in Las Vegas has issued a * Flash Flood Warning for... Central Mohave County in northwestern Arizona... * Until 830 PM MST * At 528 PM MST, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Flash flooding is expected to begin shortly. * Some locations that will experience flooding include... Grand Canyon Skywalk, Grand Canyon Ranch, Meadview and Lake Mead National Recreation Area. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Excessive runoff from heavy rainfall will cause flooding of small creeks and streams, country roads, farmland, and other low lying spots. && LAT...LON 3609 11347 3571 11354 3579 11417 3617 11404 $$ ASG
2 follow-up statements
609 WGUS75 KVEF 040125 FFSVEF Flash Flood Statement National Weather Service Las Vegas NV 625 PM MST THU AUG 3 2017 AZC015-040330- /O.CON.KVEF.FF.W.0075.000000T0000Z-170804T0330Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Mohave AZ- 625 PM MST THU AUG 3 2017 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 830 PM MST FOR CENTRAL MOHAVE COUNTY... At 625 PM MST, Doppler radar indicated thunderstorms continuing to produce heavy rain across the warned area. Flash flooding is likely occurring within the warned area. Some locations that will experience flooding include... Grand Canyon Skywalk, Grand Canyon Ranch, Meadview and Lake Mead National Recreation Area. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Excessive runoff from heavy rainfall will cause flooding of small creeks and streams, country roads, farmland, and other low lying spots. && LAT...LON 3609 11347 3571 11354 3579 11417 3617 11404 $$ ASG
629 WGUS75 KVEF 040327 FFSVEF Flash Flood Statement National Weather Service Las Vegas NV 827 PM MST THU AUG 3 2017 AZC015-040336- /O.EXP.KVEF.FF.W.0075.000000T0000Z-170804T0330Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Mohave AZ- 827 PM MST THU AUG 3 2017 ...THE FLASH FLOOD WARNING FOR CENTRAL MOHAVE COUNTY WILL EXPIRE AT 830 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 3609 11347 3571 11354 3579 11417 3617 11404 $$ ASG
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, 7:34 PM MST | Areal Flood Advisory | VEF | Mohave | 3 hr |
| Aug 3, 8:19 PM MST | Flash Flood Warning | 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.