Alert archive / Arizona / Flash Flood Warnings in 2011
Flash Flood Warning 83, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Sep 12, 2011, 3:43 PM MST for Mohave County, Arizona. It was in force for 90 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
- Sep 12, 2011, 3:43 PM MST (22:43 UTC)
- Expired
- Sep 12, 2011, 5:13 PM MST
- In force
- 90 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), 118 km from the middle of the area, began a volume at 22:42 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, 10.7 hours before the alert went out and 171 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 8060 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- -48 m²/s²
- 0-3 km storm-relative helicity
- 34 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
438 WGUS55 KVEF 122243 FFWVEF AZC015-130145- /O.NEW.KVEF.FF.W.0083.110912T2243Z-110913T0145Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE LAS VEGAS NV 343 PM MST MON SEP 12 2011 THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A * FLASH FLOOD WARNING FOR... CENTRAL MOHAVE COUNTY IN NORTHWEST ARIZONA... * UNTIL 645 PM MST. * AT 338 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN FROM A THUNDERSTORM OVER CENTRAL MOHAVE COUNTY...OR 21 MILES EAST OF KINGMAN. THE STORM PRODUCING VERY HEAVY RAIN WAS MOVING NORTHEAST AT 20 MPH. * LOCATIONS IMPACTED INCLUDE... HACKBERRY ROAD JUST SOUTH OF HIGHWAY 66 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 TWITTER #NWSVEGAS. && LAT...LON 3535 11374 3537 11361 3525 11359 3523 11372 $$ MORGAN
2 follow-up statements
216 WGUS75 KVEF 122338 FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 438 PM MST MON SEP 12 2011 AZC015-130145- /O.CON.KVEF.FF.W.0083.000000T0000Z-110913T0145Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ MOHAVE AZ- 438 PM MST MON SEP 12 2011 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 645 PM MST FOR CENTRAL MOHAVE COUNTY... AT 431 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWED THAT RAIN HAD STOPPED OVER HACKBERRY ROAD FOR THE MOMENT...HOWEVER...ANOTHER SHOWER WAS DEVELOPING BACK TO THE SOUTHWEST. RADAR ESTIMATED THAT ENOUGH RAIN HAD FALLEN TO CAUSE HACKBERRY WASH TO FLOOD THE ROAD...SO THE FLASH FLOOD WARNING REMAINS IN EFFECT. LOCATIONS IMPACTED INCLUDE... HACKBERRY ROAD SOUTH OF HIGHWAY 66 PRECAUTIONARY/PREPAREDNESS ACTIONS... FLASH FLOODING IS EXPECTED IN WASHES...LOW WATER CROSSINGS AND ON AREA ROADWAYS. FLASH FLOODING IS NATURES NUMBER ONE KILLER. TO ESCAPE RISING WATER...MOVE TO HIGHER GROUND. NEVER TRY TO CROSS A FLOODED ROADWAY OR WALK THROUGH FLOODWATERS. TURN AROUND...DONT DROWN! REPORT FLOODING BY POSTING YOUR REPORT TO THE LAS VEGAS NATIONAL WEATHER SERVICE FACEBOOK PAGE OR TWITTER #NWSVEGAS. && LAT...LON 3535 11374 3537 11361 3525 11359 3523 11372 $$ MORGAN
460 WGUS75 KVEF 130013 FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 513 PM MST MON SEP 12 2011 AZC015-130023- /O.CAN.KVEF.FF.W.0083.000000T0000Z-110913T0145Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ MOHAVE AZ- 513 PM MST MON SEP 12 2011 ...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR CENTRAL MOHAVE COUNTY... AT 513 PM MST...RADAR INDICATED THAT NO HEAVY RAIN HAD FALLEN ON HACKBERRY ROAD SINCE 415 PM. NO REPORTS OF FLOODING HAVE BEEN RECEIVED...SO THE FLASH FLOOD WARNING HAS BEEN CANCELLED. LAT...LON 3535 11374 3537 11361 3525 11359 3523 11372 $$ MORGAN
The office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 12, 3:00 PM MST | Severe Thunderstorm Warning | VEF | Mohave | 30 min |
| Sep 12, 4:06 PM MST | Severe Thunderstorm Warning | VEF | Mohave | 39 min |
Nearby
Flash Flood Warnings in Arizona, 2011Every flash flood warning in 2011
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.