Alert archive / Arizona / Flash Flood Warnings in 2012
Flash Flood Warning 92, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Aug 2, 2012, 3:52 PM MST for Mohave County, Arizona. It was in force for 113 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
- Aug 2, 2012, 3:52 PM MST (22:52 UTC)
- Expired
- Aug 2, 2012, 5:45 PM MST
- In force
- 113 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), 53 km from the middle of the area, began a volume at 22:53 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, 10.9 hours before the alert went out and 134 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
- 302 J/kg
- Mixed-layer CIN
- -217 J/kg
- Mixed-layer LCL
- 2034 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- -18 m²/s²
- 0-3 km storm-relative helicity
- 39 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
636 WGUS55 KVEF 022252 FFWVEF AZC015-030045- /O.NEW.KVEF.FF.W.0092.120802T2252Z-120803T0045Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE LAS VEGAS NV 352 PM MST THU AUG 2 2012 THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A * FLASH FLOOD WARNING FOR... WEST CENTRAL MOHAVE COUNTY IN NORTHWEST ARIZONA... * UNTIL 545 PM MST. * AT 345 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN FROM A THUNDERSTORM 8 MILES NORTH OF DOLAN SPRINGS...OR 36 MILES SOUTHEAST OF BOULDER CITY. THE STORM PRODUCING VERY HEAVY RAIN WAS NEARLY STATIONARY. * LOCATIONS IMPACTED INCLUDE... WHITE HILLS. 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 3580 11439 3580 11416 3555 11417 3561 11439 $$ STACHELSKI
2 follow-up statements
105 WGUS75 KVEF 022358 FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 458 PM MST THU AUG 2 2012 AZC015-030045- /O.CON.KVEF.FF.W.0092.000000T0000Z-120803T0045Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ MOHAVE AZ- 458 PM MST THU AUG 2 2012 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 545 PM MST FOR WEST CENTRAL MOHAVE COUNTY... AT 449 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR HAS SHOWN THE THUNDERSTORM THAT PRODUCED VERY HEAVY RAIN LEADING TO THE FLASH FLOOD WARNING HAS WEAKENED. HOWEVER...SIGNIFICANT RUNOFF IS LIKELY CONTINUING AND THE FLASH FLOOD WARNING WILL REMAIN IN EFFECT. LOCATIONS IMPACTED INCLUDE... WHITE HILLS. PRECAUTIONARY/PREPAREDNESS ACTIONS... FLASH FLOODING IS EXPECTED IN WASHES...LOW WATER CROSSINGS AND ON AREA ROADWAYS. FLASH FLOODING IS NATURES NUMBER ONE KILLER. TO ESCAPE RISING WATER...MOVE TO HIGHER GROUND. NEVER TRY TO CROSS A FLOODED ROADWAY OR WALK THROUGH FLOODWATERS. TURN AROUND...DONT DROWN! REPORT FLOODING BY POSTING YOUR REPORT TO THE LAS VEGAS NATIONAL WEATHER SERVICE FACEBOOK PAGE...OR BY USING THE TWITTER HASHTAG... NWSVEGAS. && LAT...LON 3580 11439 3580 11416 3555 11417 3561 11439 $$ ASG
448 WGUS75 KVEF 030036 FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 536 PM MST THU AUG 2 2012 AZC015-030045- /O.EXP.KVEF.FF.W.0092.000000T0000Z-120803T0045Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ MOHAVE AZ- 536 PM MST THU AUG 2 2012 ...THE FLASH FLOOD WARNING WILL EXPIRE AT 545 PM MST FOR WEST CENTRAL MOHAVE COUNTY... THE THUNDERSTORM THAT PROMPTED THE FLASH FLOOD WARNING FOR THE WHITE HILLS AREA OF MOHAVE COUNTY HAS WEAKENED. RUNOFF MAY OCCUR THROUGH 630 PM...BUT THE THREAT OF FLASH FLOODING HAS ENDED. LAT...LON 3580 11439 3580 11416 3555 11417 3561 11439 $$ ASG
The office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 2, 2:13 PM MST | Flash Flood Warning | VEF | Mohave | 3 hr |
| Aug 2, 2:59 PM MST | Flash Flood Warning | VEF | Mohave | 2 hr |
| Aug 2, 4:45 PM MST | Areal Flood Advisory | VEF | Mohave | 46 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.