Alert archive / Arizona / Flash Flood Warnings in 2017
Flash Flood Warning 5, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Jul 11, 2017, 2:29 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
- Jul 11, 2017, 2:29 PM MST (21:29 UTC)
- Expired
- Jul 11, 2017, 5:30 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), 96 km from the middle of the area, began a volume at 21:31 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 12:00Z, 9.5 hours before the alert went out and 160 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
- 134 J/kg
- Mixed-layer CIN
- -262 J/kg
- Mixed-layer LCL
- 2771 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 16 m²/s²
- 0-3 km storm-relative helicity
- 25 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
412 WGUS55 KVEF 112129 FFWVEF AZC015-120030- /O.NEW.KVEF.FF.W.0005.170711T2129Z-170712T0030Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Las Vegas NV 229 PM MST TUE JUL 11 2017 The National Weather Service in Las Vegas has issued a * Flash Flood Warning for... Northwestern Mohave County in northwestern Arizona... * Until 530 PM MST * At 228 PM MST, Doppler radar indicated thunderstorms producing heavy rain on Buck and Doe Road just south of Diamond Bar Road. Flash flooding is expected to begin shortly. * Flash flooding will remain over mainly rural areas of northwestern Mohave County. 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 3595 11377 3577 11387 3583 11400 3598 11387 $$ Morgan
3 follow-up statements
386 WGUS75 KVEF 112230 FFSVEF Flash Flood Statement National Weather Service Las Vegas NV 330 PM MST TUE JUL 11 2017 AZC015-120030- /O.CON.KVEF.FF.W.0005.000000T0000Z-170712T0030Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Mohave AZ- 330 PM MST TUE JUL 11 2017 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 530 PM MST FOR NORTHWESTERN MOHAVE COUNTY... At 328 PM MST, Doppler radar indicated that rain was beginning to let up over Buck and Doe Road just south of Diamond Bar Road. Radar estimated that over an inch of rain had fallen in the area, so flash flooding is still a concern. Flash flooding will remain over mainly rural areas of northwestern Mohave County. PRECAUTIONARY/PREPAREDNESS ACTIONS... Excessive runoff from heavy rainfall will cause flooding of small creeks and streams, country roads, farmland, and other low lying spots. && LAT...LON 3595 11377 3577 11387 3583 11400 3598 11387 $$ Morgan
098 WGUS75 KVEF 112333 FFSVEF Flash Flood Statement National Weather Service Las Vegas NV 433 PM MST TUE JUL 11 2017 AZC015-120030- /O.CON.KVEF.FF.W.0005.000000T0000Z-170712T0030Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Mohave AZ- 433 PM MST TUE JUL 11 2017 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 530 PM MST FOR NORTHWESTERN MOHAVE COUNTY... At 431 PM MST, Doppler radar indicated that rain was beginning to let up over Buck and Doe Road just south of Diamond Bar Road. Radar estimated that over an inch of rain had fallen in the area, so flash flooding is still a concern. Flash flooding will remain over mainly rural areas of northwestern Mohave County. 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 3595 11377 3577 11387 3583 11400 3598 11387 $$ Wolcott
663 WGUS75 KVEF 120021 FFSVEF Flash Flood Statement National Weather Service Las Vegas NV 521 PM MST TUE JUL 11 2017 AZC015-120031- /O.EXP.KVEF.FF.W.0005.000000T0000Z-170712T0030Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Mohave AZ- 521 PM MST TUE JUL 11 2017 ...THE FLASH FLOOD WARNING FOR NORTHWESTERN MOHAVE COUNTY WILL EXPIRE AT 530 PM MST... The heavy rain has ended. Flooding is no longer expected to pose a threat. Please continue to heed any remaining road closures. LAT...LON 3595 11377 3577 11387 3583 11400 3598 11387 $$ Wolcott
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, 12:25 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.