Alert archive / Arizona / Flash Flood Warnings in 2017
Flash Flood Warning 65, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Aug 2, 2017, 7:03 PM MST for Mohave County, Arizona. It was in force for 3 hr. 5 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 2, 2017, 7:03 PM MST (02:03 UTC)
- Expired
- Aug 2, 2017, 10:00 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), 99 km from the middle of the area, began a volume at 02:03 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 2, 7:28 PM MST | HEAVY RAIN 2.1 | Oatman, AZ | TRAINED SPOTTER MEASURED HEAVY RAINFALL 2.10 INCHES IN ONE HOUR, ALSO SEES SIGNIFICANT WATER FLOWING IN WASHES. |
| Aug 2, 7:55 PM MST | FLASH FLOOD | 2 Sse Yucca, AZ | MOHAVE COUNTY ROADS REPORTED APACHE DRIVE CLOSED BETWEEN KNOX DRIVE AND ALAMO ROAD. ESTIMATED TIME BASED ON RADAR. |
| Aug 2, 7:55 PM MST | FLASH FLOOD | 4 Sse Yucca, AZ | MOHAVE COUNTY ROADS REPORTED NATIONAL TRAILS HWY CLOSED BETWEEN KNOX DRIVE AND APACHE DRIVE. ESTIMATED TIME BASED ON RADAR. |
| Aug 2, 9:34 PM MST | FLASH FLOOD | 3 Ne Mohave Valley, AZ | MOHAVE COUNTY ROADWORK REPORTED BOUNDARY CONE RD NEAR MOHAVE VALLEY CLOSED DUE TO FLOODING. |
| Aug 2, 9:45 PM MST | FLASH FLOOD | 3 Sse Topock, AZ | MOHAVE COUNTY ROADWORK REPORTED OATMAN-TOPOCK HWY CLOSED DUE TO FLOODING. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Las Vegas, NV (KVEF), launched 00:00Z, 2.1 hours before the alert went out and 192 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
- 706 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 3193 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- -5 m²/s²
- 0-3 km storm-relative helicity
- 2 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
443
WGUS55 KVEF 030203
FFWVEF
AZC015-030500-
/O.NEW.KVEF.FF.W.0065.170803T0203Z-170803T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Las Vegas NV
703 PM MST WED AUG 2 2017
The National Weather Service in Las Vegas has issued a
* Flash Flood Warning for...
Southwestern Mohave County in northwestern Arizona...
* Until 1000 PM MST
* At 702 PM MST, Doppler radar indicated thunderstorms producing
heavy rain across the warned area around Oatman. Flash flooding is
expected to begin shortly.
* Some locations that will experience flooding include...
Topock, Yucca, Mesquite Creek, Oatman, Mojave Ranch Estates,
Mohave Valley, Arizona Village and Willow Valley.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Flash Flood Warning means that flooding is imminent or occurring.
If you are in the warned area move to higher ground immediately.
Residents living along streams and creeks should take immediate
precautions to protect life and property.
&&
LAT...LON 3469 11446 3471 11447 3477 11456 3503 11464
3507 11460 3509 11464 3517 11420 3474 11410
$$
JH2 follow-up statements
327
WGUS75 KVEF 030325
FFSVEF
Flash Flood Statement
National Weather Service Las Vegas NV
825 PM MST WED AUG 2 2017
AZC015-030500-
/O.CON.KVEF.FF.W.0065.000000T0000Z-170803T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Mohave AZ-
825 PM MST WED AUG 2 2017
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1000 PM MST FOR
SOUTHWESTERN MOHAVE COUNTY...
At 821 PM MST, trained weather spotters and a rain gauge in Oatman
reported over two inches of rain and rapidly running washes. Heavy
rain is continuing in southwestern Mohave County and flash flooding
likely across the warned area.
Some locations that will experience flooding include...
Bullhead City, Laughlin, Topock, Yucca, Mesquite Creek, Oatman,
Mojave Ranch Estates, Mohave Valley, Arizona Village and Willow
Valley.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
A Flash Flood Warning means that flooding is imminent or occurring.
If you are in the warned area move to higher ground immediately.
Residents living along streams and creeks should take immediate
precautions to protect life and property.
&&
LAT...LON 3469 11446 3471 11447 3477 11456 3503 11464
3507 11460 3509 11464 3517 11420 3474 11410
$$
Czyzyk647
WGUS75 KVEF 030500
FFSVEF
Flash Flood Statement
National Weather Service Las Vegas NV
1000 PM MST WED AUG 2 2017
AZC015-030508-
/O.EXP.KVEF.FF.W.0065.000000T0000Z-170803T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Mohave AZ-
1000 PM MST WED AUG 2 2017
...THE FLASH FLOOD WARNING FOR SOUTHWESTERN MOHAVE COUNTY WILL EXPIRE
AT 1000 PM MST...
The heavy rain has ended in southwestern Mohave County. Minor
flooding and rapidly running washes will continue, but the threat of
flash flooding has ended and the flash flood warning will be allowed
to expire at 1000 PM MST. Please continue to heed any remaining road
closures.
LAT...LON 3469 11446 3471 11447 3477 11456 3503 11464
3507 11460 3509 11464 3517 11420 3474 11410
$$
CzyzykThe office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 2, 5:14 PM MST | Severe Thunderstorm Warning | VEF | Mohave | 61 min |
| Aug 2, 5:40 PM MST | Areal Flood Advisory | VEF | Mohave | 3 hr |
| Aug 2, 6:02 PM MST | Severe Thunderstorm Warning | VEF | Mohave | 28 min |
| Aug 2, 6:31 PM MST | Severe Thunderstorm Warning | VEF | Mohave | 44 min |
| Aug 2, 9:54 PM MST | Areal Flood Advisory | VEF | Mohave | 3 hr |
| Aug 3, 2:27 AM MST | Flash Flood Watch | VEF | Mohave | 21 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.