Alert archive / Arizona / Flash Flood Warnings in 2011

Flash Flood Warning 21, NWS Las Vegas, NV

July 5, 2011Mohave County, Arizona

NWS Las Vegas, NV issued this flash flood warning at Jul 5, 2011, 6:18 PM MST for Mohave County, Arizona. It was in force for 50 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, 6:18 PM MST (01:18 UTC)
Expired
Jul 5, 2011, 7:08 PM MST
In force
50 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), 97 km from the middle of the area, began a volume at 01:18 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, 1.3 hours before the alert went out and 189 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.

Skew-T log-pSkew-T log-p diagram, Las Vegas, NV at 00:00Z on 2011-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Las Vegas, NV at 00:00Z on 2011-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -12 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2968 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
-12 m²/s²
0-3 km storm-relative helicity
7 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

384 
WGUS55 KVEF 060118
FFWVEF
AZC015-060315-
/O.NEW.KVEF.FF.W.0021.110706T0118Z-110706T0315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
618 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...
  INCLUDING THE CITY OF KINGMAN

* UNTIL 815 PM MST.

* AT 612 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
VERY ONE TO TWO INCHES OF RAIN HAS FALLEN SINCE 5 PM FROM 
THUNDERSTORMS NEAR AND 2 MILES NORTHEAST OF KINGMAN. THE STORMS 
PRODUCING VERY HEAVY RAIN WERE NEARLY STATIONARY. GAUGES NEAR 
KINGMAN REPORT AROUND ONE QUARTER OF AN INCH OF RAIN IN 15 MINUTES 
NEAR KINGMAN

* LOCATIONS IMPACTED INCLUDE...KINGMAN AND NEW KINGMAN-BUTLER.

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 3526 11410 3537 11392 3528 11376 3509 11392
      3512 11406 3515 11414

$$

JGG
2 follow-up statements
743 
WGUS75 KVEF 060132
FFSVEF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
632 PM MST TUE JUL 5 2011

AZC015-060315-
/O.CON.KVEF.FF.W.0021.000000T0000Z-110706T0315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MOHAVE AZ-
632 PM MST TUE JUL 5 2011

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 815 PM MST FOR
CENTRAL MOHAVE COUNTY...

AT 627 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A THUNDERSTORM PRODUCING VERY HEAVY RAIN NEAR KINGMAN. 
RADAR INDICATES AROUND ONE INCH OF RAIN HAS FALLEN SINCE 530 PM OVER 
SOUTHERN PORTIONS OF KINGMAN AND GAUGES IN THE AREA REPORT ONE 
QUARTER OF AN INCH OF RAIN HAS FALLEN SINCE 615 PM OVER SOUTH 
KINGMAN. 

LOCATIONS IMPACTED INCLUDE...KINGMAN AND NEW KINGMAN-BUTLER.

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 3526 11410 3535 11394 3524 11386 3513 11399
      3512 11406 3515 11414

$$

JGG
721 
WGUS75 KVEF 060208
FFSVEF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
708 PM MST TUE JUL 5 2011

AZC015-060216-
/O.CAN.KVEF.FF.W.0021.000000T0000Z-110706T0315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MOHAVE AZ-
708 PM MST TUE JUL 5 2011

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR CENTRAL MOHAVE
COUNTY...

THE FLASH FLOOD WARNING FOR THE KINGMAN AREA HAS BEEN CANCELLED AS 
STORMS HAVE MOVED AWAY FROM THE AREA. LAW ENFORCEMENT REPORTS NO 
SIGNIFICANT ISSUES AT THIS TIME. THEREFORE THE WARNING IS CANCELLED.

A FLASH FLOOD WARNING REMAINS IN EFFECT FOR OTHER PORTIONS OF 
CENTRAL MOHAVE COUNTY NORTH OF THE KINGMAN AREA...INCLUDING MEADVIEW 
AND THE DOLAN SPRINGS AREA.

LAT...LON 3526 11410 3535 11394 3524 11386 3513 11399
      3512 11406 3515 11414

$$

JGG

The office that day

Everything else NWS Las Vegas, NV issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 5, 6:23 PM MSTFlash Flood WarningVEFMohave82 min
Jul 5, 11:19 PM MSTAreal Flood AdvisoryVEFMohave76 min
Jul 5, 11:49 PM MSTFlash Flood WarningVEFMohave116 min
Jul 6, 12:04 AM MSTSevere Thunderstorm WarningVEFMohave41 min
Jul 6, 12:15 AM MSTFlash Flood WarningVEFMohave2 hr
Jul 6, 4:40 AM MSTFlash Flood WatchVEFMohave17 hr
Jul 6, 1:39 PM MSTFlash Flood WarningVEFMohave39 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.