Alert archive / Arizona / Flash Flood Warnings in 2012
Flash Flood Warning 31, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Jul 14, 2012, 6:36 PM MST for Mohave County, Arizona. It was in force for 114 min. 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 14, 2012, 6:36 PM MST (01:36 UTC)
- Expired
- Jul 14, 2012, 8:30 PM MST
- In force
- 114 min
- Issued by
- NWS Las Vegas, NV
- Area
- Storm-based polygon
- Flood severity
- None
County Mohave County, AZ
The radar
The Las Vegas radar (KESX), 28 km from the middle of the area, began a volume at 01:36 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, 1.6 hours before the alert went out and 98 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
- 48 J/kg
- Mixed-layer CIN
- -202 J/kg
- Mixed-layer LCL
- 2462 m above ground
- 0-6 km bulk shear
- 2 kt
- 0-1 km storm-relative helicity
- -8 m²/s²
- 0-3 km storm-relative helicity
- -43 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
395
WGUS55 KVEF 150136
FFWVEF
AZC015-150330-
/O.NEW.KVEF.FF.W.0031.120715T0136Z-120715T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
636 PM MST SAT JUL 14 2012
THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
EXTREME WEST CENTRAL MOHAVE COUNTY IN NORTHWEST ARIZONA...
* UNTIL 830 PM MST/830 PM PDT/.
* AT 628 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
VERY HEAVY RAIN FROM A THUNDERSTORM NEAR WILLOW BEACH...OR 13 MILES
SOUTHEAST OF BOULDER CITY. THE STORM PRODUCING VERY HEAVY RAIN WAS
NEARLY STATIONARY.
* LOCATIONS IMPACTED INCLUDE...
WILLOW BEACH.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FLASH FLOODING IS EXPECTED IN WASHES...LOW WATER CROSSINGS AND ON
AREA ROADWAYS. FLASH FLOODING IS NATURES NUMBER ONE KILLER. TO ESCAPE
RISING WATER...MOVE TO HIGHER GROUND. NEVER TRY TO CROSS A FLOODED
ROADWAY OR WALK THROUGH FLOODWATERS. TURN AROUND...DONT DROWN!
REPORT FLOODING BY POSTING YOUR REPORT TO THE LAS VEGAS NATIONAL
WEATHER SERVICE FACEBOOK PAGE...OR BY USING THE TWITTER HASHTAG...
NWSVEGAS.
&&
LAT...LON 3590 11463 3583 11458 3581 11469 3584 11469
3586 11468 3587 11466 3590 11468
$$
JENSEN2 follow-up statements
446
WGUS75 KVEF 150235
FFSVEF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
735 PM MST SAT JUL 14 2012
AZC015-150330-
/O.CON.KVEF.FF.W.0031.000000T0000Z-120715T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MOHAVE AZ-
735 PM MST SAT JUL 14 2012
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 830 PM MST/830 PM
PDT/ FOR EXTREME WEST CENTRAL MOHAVE COUNTY...
AT 724 PM MST...THUNDERSTORMS HAVE MOVED TO THE SOUTHEAST OF THE
WILLOW BEACH AREA. HOWEVER HEAVY RAINFALL EARLIER WILL STILL BE
MOVING DOWN THE WASH TOWARDS THE COLORADO RIVER AND WILLOW BEACH.
LOCATIONS IMPACTED INCLUDE...
WILLOW BEACH.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FLASH FLOODING IS EXPECTED IN WASHES...LOW WATER CROSSINGS AND ON
AREA ROADWAYS. FLASH FLOODING IS NATURES NUMBER ONE KILLER. TO ESCAPE
RISING WATER...MOVE TO HIGHER GROUND. NEVER TRY TO CROSS A FLOODED
ROADWAY OR WALK THROUGH FLOODWATERS. TURN AROUND...DONT DROWN!
REPORT FLOODING BY POSTING YOUR REPORT TO THE LAS VEGAS NATIONAL
WEATHER SERVICE FACEBOOK PAGE...OR BY USING THE TWITTER HASHTAG...
NWSVEGAS.
&&
LAT...LON 3590 11463 3583 11458 3581 11469 3584 11469
3586 11468 3587 11466 3590 11468
$$
JENSEN445
WGUS75 KVEF 150330
FFSVEF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
830 PM MST SAT JUL 14 2012
AZC015-150335-
/O.EXP.KVEF.FF.W.0031.000000T0000Z-120715T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MOHAVE AZ-
830 PM MST SAT JUL 14 2012
...THE FLASH FLOOD WARNING WILL EXPIRE AT 830 PM MST/830 PM PDT/ FOR
EXTREME WEST CENTRAL MOHAVE COUNTY...
THE THUNDERSTORM WHICH PRODUCED HEAVY RAINFALL IN THE AREA HAS MOVED
TO THE SOUTHEAST AND ALTHOUGH WATER MAY STILL BE MOVING THROUGH THE
AREA...HEAVY RAINFALL IS NO LONGER EXPECTED.
AS OF 820 THIS EVENING...THE NATIONAL PARK SERVICE REPORTS THAT
HEAVY RAIN PRODUCED FLASH FLOODING IN THE WILLOW BEACH AREA.
NUMEROUS AREAS OF ROCK AND DEBRIS OVER THE ROADWAY TO WILLOW BEACH
AS WELL AS POSSIBLE DAMAGE TO THE DOCK AREA HAS OCCURRED. THE ROAD
TO WILLOW BEACH WILL BE CLOSED TONIGHT.
LAT...LON 3590 11463 3583 11458 3581 11469 3584 11469
3586 11468 3587 11466 3590 11468
$$
JENSENThe office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 14, 5:10 PM MST | Flash Flood Warning | VEF | Mohave | 3 hr |
| Jul 14, 5:30 PM MST | Flash Flood Warning | VEF | Mohave | 2 hr |
| Jul 14, 8:20 PM MST | Flash Flood Warning | VEF | Mohave | 115 min |
| Jul 14, 10:01 PM MST | Flash Flood Warning | VEF | Mohave | 3 hr |
| Jul 15, 10:14 AM MST | Flash Flood Watch | VEF | Mohave | 11 hr |
| Jul 15, 12:53 PM MST | Flash Flood Warning | VEF | Mohave | 2 hr |
| Jul 15, 4:40 PM MST | Flash Flood Warning | VEF | Mohave | 65 min |
| Jul 15, 4:58 PM MST | Flash Flood Warning | VEF | Mohave | 92 min |
Nearby
Flash Flood Warnings in Arizona, 2012Every flash flood warning in 2012
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.