Alert archive / Arizona / Flash Flood Warnings in 2011
Flash Flood Warning 50, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Jul 9, 2011, 4:57 PM MST for Mohave County, Arizona. It was in force for 98 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 9, 2011, 4:57 PM MST (23:57 UTC)
- Expired
- Jul 9, 2011, 6:35 PM MST
- In force
- 98 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), 141 km from the middle of the area, began a volume at 23:55 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, 12.0 hours before the alert went out and 148 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
- 293 J/kg
- Mixed-layer CIN
- -48 J/kg
- Mixed-layer LCL
- 1247 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- 19 m²/s²
- 0-3 km storm-relative helicity
- -4 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
857 WGUS55 KVEF 092357 FFWVEF AZC015-100200- /O.NEW.KVEF.FF.W.0050.110709T2357Z-110710T0200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE LAS VEGAS NV 457 PM MST SAT JUL 9 2011 THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A * FLASH FLOOD WARNING FOR... CENTRAL MOHAVE COUNTY IN NORTHWEST ARIZONA... * UNTIL 700 PM MST. * AT 450 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED FLASH FLOODING FROM A THUNDERSTORM NEAR DIAMOND M RANCH...OR 37 MILES EAST OF KINGMAN JUST NORTH OF INTERSTATE 40. THE STORM PRODUCING FLASH FLOODING WAS NEARLY STATIONARY. * LOCATIONS IMPACTED INCLUDE...DIAMOND M RANCH AND RURAL ROAD JUST NORTH OF INTERSTATE 40. PRECAUTIONARY/PREPAREDNESS ACTIONS... FLASH FLOODING IS EXPECTED ON AREA ROADWAYS...AROUND UNDERPASSES... AND IN NORMALLY DRY WASHES AND LOW LYING AREAS. FLASH FLOODING IS NATURES NUMBER ONE KILLER. 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 11348 3535 11334 3516 11334 3517 11348 $$ JH
2 follow-up statements
406 WGUS75 KVEF 100041 FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 541 PM MST SAT JUL 9 2011 AZC015-100200- /O.CON.KVEF.FF.W.0050.000000T0000Z-110710T0200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ MOHAVE AZ- 541 PM MST SAT JUL 9 2011 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 700 PM MST FOR CENTRAL MOHAVE COUNTY... AT 533 PM MST...RADAR INDICATED THAT THE THUNDERSTORMS PRODUCING HEAVY RAIN HAVE MOVED NORTH OF THE AREA. A SPOTTER AT DIAMOND M RANCH REPORTED WASHES RUNNING BANKFULL. ADDITIONAL RUNOFF FROM THE EARLIER RAIN COULD STILL CAUSE FLASH FLOODING IN THE AREA NORTH OF INTERSTATE 40 IN EAST CENTRAL MOHAVE COUNTY. LOCATIONS IMPACTED INCLUDE...DIAMOND M RANCH. PRECAUTIONARY/PREPAREDNESS ACTIONS... FLASH FLOODING IS EXPECTED IN WASHES...LOW WATER CROSSINGS AND ON AREA ROADWAYS. FLASH FLOODING IS NATURES NUMBER ONE KILLER. TO ESCAPE RISING WATER...MOVE TO HIGHER GROUND. NEVER TRY TO CROSS A FLOODED ROADWAY OR WALK THROUGH FLOODWATERS. TURN AROUND...DONT DROWN! REPORT FLOODING BY POSTING YOUR REPORT TO THE LAS VEGAS NATIONAL WEATHER SERVICE FACEBOOK PAGE OR TWITTER #NWSVEGAS. && LAT...LON 3535 11348 3535 11334 3516 11334 3517 11348 $$ JH
485 WGUS75 KVEF 100135 FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 635 PM MST SAT JUL 9 2011 AZC015-100144- /O.CAN.KVEF.FF.W.0050.000000T0000Z-110710T0200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ MOHAVE AZ- 635 PM MST SAT JUL 9 2011 ...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR CENTRAL MOHAVE COUNTY... NO RAIN HAS FALLEN IN QUITE AWHILE IN THE AREA AROUND DIAMOND M RANCH NORTH OF INTERSTATE 40. ANY FLOODING WOULD HAVE DIMINISHED. LAT...LON 3535 11348 3535 11334 3516 11334 3517 11348 $$ JH
The office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 9, 1:28 PM MST | Areal Flood Advisory | VEF | Mohave | 3 hr |
| Jul 9, 3:01 PM MST | Severe Thunderstorm Warning | VEF | Mohave | 44 min |
| Jul 9, 4:07 PM MST | Flash Flood Warning | VEF | Mohave | 113 min |
| Jul 9, 4:46 PM MST | Flash Flood Warning | VEF | Mohave | 119 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.