Alert archive / Arizona / Flash Flood Warnings in 2017
Flash Flood Warning 4, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Jul 11, 2017, 12:25 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
- Jul 11, 2017, 12:25 PM MST (19:25 UTC)
- Expired
- Jul 11, 2017, 3:30 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), 118 km from the middle of the area, began a volume at 19:29 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
Flgstf/Belemont, AZ (KFGZ), launched 12:00Z, 7.4 hours before the alert went out and 172 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
- 86 J/kg
- Mixed-layer CIN
- -82 J/kg
- Mixed-layer LCL
- 1263 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- -2 m²/s²
- 0-3 km storm-relative helicity
- 19 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted.
150 WGUS55 KVEF 111925 FFWVEF AZC015-112230- /O.NEW.KVEF.FF.W.0004.170711T1925Z-170711T2230Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Las Vegas NV 1225 PM MST TUE JUL 11 2017 The National Weather Service in Las Vegas has issued a * Flash Flood Warning for... Central Mohave County in northwestern Arizona... * Until 330 PM MST * At 1224 PM MST, Doppler radar indicated thunderstorms producing heavy rain from the Hualapai Mountains to South Peacock Mountain to near Valentine. Up to one inch of rain has already fallen. Flash flooding is expected to begin shortly. * Some locations that will experience flooding include... Valentine, Wild Cow Campground, Dw Ranch Road, Blake Ranch Road, Hualapai Mountain Park and Hualapai Peak. PRECAUTIONARY/PREPAREDNESS ACTIONS... Excessive runoff from heavy rainfall will cause flooding of small creeks and streams, country roads, farmland, and other low lying spots. && LAT...LON 3547 11351 3496 11374 3500 11400 3550 11369 $$ Morgan
3 follow-up statements
858 WGUS75 KVEF 112021 FFSVEF Flash Flood Statement National Weather Service Las Vegas NV 121 PM MST TUE JUL 11 2017 AZC015-112230- /O.CON.KVEF.FF.W.0004.000000T0000Z-170711T2230Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Mohave AZ- 121 PM MST TUE JUL 11 2017 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 330 PM MST FOR CENTRAL MOHAVE COUNTY... At 119 PM MST, Doppler radar indicated that most rain had ended in the area between the Hualapai Mountains and Valentine. However, very heavy rain fell, with one gage near Peacock Peak recording almost two inches of rain. This water will flow down the mountains and affect secondary roads such as Quails Nest Road. Some locations that will experience flooding include... Valentine, Wild Cow Campground, Dw Ranch Road, Blake Ranch Road, Hualapai Mountain Park and Hualapai Peak. PRECAUTIONARY/PREPAREDNESS ACTIONS... Excessive runoff from heavy rainfall will cause flooding of small creeks and streams, country roads, farmland, and other low lying spots. && LAT...LON 3547 11351 3496 11374 3500 11400 3550 11369 $$ Morgan
508 WGUS75 KVEF 112116 FFSVEF Flash Flood Statement National Weather Service Las Vegas NV 216 PM MST TUE JUL 11 2017 AZC015-112230- /O.CON.KVEF.FF.W.0004.000000T0000Z-170711T2230Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Mohave AZ- 216 PM MST TUE JUL 11 2017 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 330 PM MST FOR CENTRAL MOHAVE COUNTY... At 214 PM MST, rain had ended in the area from the Hualapai Mountains to Valentine. Nearly two inches of rain fell earlier near Peacock Peak, and water is likely still flowing down the mountains toward secondary roads such as Quails Nest Road. PRECAUTIONARY/PREPAREDNESS ACTIONS... Excessive runoff from heavy rainfall will cause flooding of small creeks and streams, country roads, farmland, and other low lying spots. && LAT...LON 3547 11351 3496 11374 3500 11400 3550 11369 $$ Morgan
355 WGUS75 KVEF 112221 FFSVEF Flash Flood Statement National Weather Service Las Vegas NV 321 PM MST TUE JUL 11 2017 AZC015-112230- /O.EXP.KVEF.FF.W.0004.000000T0000Z-170711T2230Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Mohave AZ- 321 PM MST TUE JUL 11 2017 ...THE FLASH FLOOD WARNING FOR CENTRAL MOHAVE COUNTY WILL EXPIRE AT 330 PM MST... Rain had ended from the Hualapai Mountains to Valentine. No reports of flooding had been received, so the warning will be allowed to expire. Please continue to heed any remaining road closures. LAT...LON 3547 11351 3496 11374 3500 11400 3550 11369 $$ Morgan
The office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 6:00 PM MST | Areal Flood Advisory | VEF | Mohave | 3 hr |
| Jul 10, 7:57 PM MST | Areal Flood Advisory | VEF | Mohave | 3 hr |
| Jul 11, 2:29 PM MST | Flash Flood Warning | VEF | Mohave | 3 hr |
| Jul 11, 4:08 PM MST | Severe Thunderstorm Warning | VEF | Mohave | 52 min |
| Jul 11, 4:27 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.