Alert archive / Arizona / Flash Flood Warnings in 2011
Flash Flood Warning 20, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Jul 5, 2011, 4:54 PM MST for Mohave County, Arizona. It was in force for 71 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 5, 2011, 4:54 PM MST (23:54 UTC)
- Expired
- Jul 5, 2011, 6:05 PM MST
- In force
- 71 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), 121 km from the middle of the area, began a volume at 23:57 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, 11.9 hours before the alert went out and 181 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
- 76 J/kg
- Mixed-layer CIN
- -125 J/kg
- Mixed-layer LCL
- 1731 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- -42 m²/s²
- 0-3 km storm-relative helicity
- 75 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
The text
As transmitted, in the capitals the NWS used until 2016.
389 WGUS55 KVEF 052354 FFWVEF AZC015-060200- /O.NEW.KVEF.FF.W.0020.110705T2354Z-110706T0200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE LAS VEGAS NV 454 PM MST TUE JUL 5 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 452 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN FROM A THUNDERSTORM NEAR HUALAPAI MOUNTAIN PARK... OR 15 MILES SOUTHEAST OF KINGMAN. THE STORM PRODUCING VERY HEAVY RAIN WAS NEARLY STATIONARY. GAUGES REPORT ONE QUARTER OF AN INCH OF RAIN IN 15 MINUTES. SPOTTERS REPORT RAPID INCREASES IN WASHES IN THE AREA. RADAR ESTIMATES TWO TO THREE INCHES OF RAIN HAS FALLEN SINCE 4 PM IN THE AREA. * LOCATIONS IMPACTED INCLUDE...HUALAPAI MOUNTAIN PARK AND WILD COW CAMPGROUND. 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 3519 11387 3516 11365 3492 11366 3496 11388 $$ JGG
2 follow-up statements
323 WGUS75 KVEF 060031 FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 531 PM MST TUE JUL 5 2011 AZC015-060200- /O.CON.KVEF.FF.W.0020.000000T0000Z-110706T0200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ MOHAVE AZ- 531 PM MST TUE JUL 5 2011 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 700 PM MST FOR CENTRAL MOHAVE COUNTY... AT 525 PM MST...RADAR INDICATED THAT STORMS PRODUCING HEAVY RAIN ARE MOVING WESTWARD TOWARDS AND JUST WEST OF HUALAPAI PEAK AND AREAS THAT RADAR INDICATE RECEIVED ONE TO TWO INCHES OF RAINFALL BETWEEN 415 AND 515 ARE NO LONGER EXPERIENCING HEAVY RAIN. SPOTTERS REPORT THAT WATER IS STILL FLOWING DOWN HUALAPAI MOUNTAIN HOWEVER...AND THE THREAT FOR FLASH FLOODING REMAINS. LOCATIONS IMPACTED INCLUDE...HUALAPAI MOUNTAIN PARK AND WILD COW CAMPGROUND. PRECAUTIONARY/PREPAREDNESS ACTIONS... FLASH FLOODING IS EXPECTED IN WASHES...LOW WATER CROSSINGS AND ON AREA ROADWAYS. FLASH FLOODING IS NATURES NUMBER ONE KILLER. TO ESCAPE RISING WATER...MOVE TO HIGHER GROUND. NEVER TRY TO CROSS A FLOODED ROADWAY OR WALK THROUGH FLOODWATERS. TURN AROUND...DONT DROWN! REPORT FLOODING BY POSTING YOUR REPORT TO THE LAS VEGAS NATIONAL WEATHER SERVICE FACEBOOK PAGE OR TWITTER #NWSVEGAS. && LAT...LON 3519 11387 3516 11365 3492 11366 3496 11388 $$ JGG
249 WGUS75 KVEF 060105 FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 605 PM MST TUE JUL 5 2011 AZC015-060114- /O.CAN.KVEF.FF.W.0020.000000T0000Z-110706T0200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ MOHAVE AZ- 605 PM MST TUE JUL 5 2011 ...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR CENTRAL MOHAVE COUNTY... RADAR INDICATES STORMS WHICH PROMPTED THE WARNING HAVE LEFT THE AREA AND ARE NOW MOVING MORE QUICKLY WESTWARD. SPOTTERS REPORT THAT WATER THAT WAS RUNNING HIGH IN AREA WASHES AND DOWN HUALAPAI MOUNTAIN HAS RECEDED...THEREFORE THE WARNING IS CANCELLED. LOCALIZED AREAS OF HIGH WATER MAY STILL BE POSSIBLE AND MOTORISTS IN THE AREA SHOULD USE CAUTION. LAT...LON 3519 11387 3516 11365 3492 11366 3496 11388 $$ JGG
The office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 5, 12:23 PM MST | Areal Flood Advisory | VEF | Mohave | 58 min |
| Jul 5, 4:15 PM MST | Severe Thunderstorm Warning | VEF | Mohave | 30 min |
| Jul 5, 4:42 PM MST | Severe Thunderstorm Warning | VEF | Mohave | 33 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.