Alert archive / Arizona / Flash Flood Warnings in 2016

Flash Flood Warning 34, NWS Las Vegas, NV

July 2, 2016Mohave County, Arizona

NWS Las Vegas, NV issued this flash flood warning at Jul 2, 2016, 1:33 AM MST for Mohave County, Arizona. It was in force for 3 hr. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jul 2, 2016, 1:33 AM MST (08:33 UTC)
Expired
Jul 2, 2016, 4:30 AM MST
In force
3 hr
Issued by
NWS Las Vegas, NV
Area
Storm-based polygon
Flood severity
None

County Mohave County, AZ

The radar

The Las Vegas radar (KESX), 85 km from the middle of the area, began a volume at 08:35 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.

What was reported inside it

TimeReportWhereRemark
Jul 2, 1:45 AM MSTFLASH FLOOD5 Nne Bullhead City, AZROCKS AND DEBRIS ON STATE HIGHWAY 95 NEAR HOME DEPOT FROM FLASH FLOODING. REPORT RELAYED VIA SOCIAL MEDIA. ONSET TIME ESTIMATED FROM RADAR.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Las Vegas, NV (KVEF), launched 00:00Z, 8.6 hours before the alert went out and 180 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 2016-07-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 998 joules per kilogram.LCLLFCEL10008507005003002001001 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 2016-07-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -18 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
998 J/kg
Mixed-layer CIN
-80 J/kg
Mixed-layer LCL
2623 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
-18 m²/s²
0-3 km storm-relative helicity
132 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

018 
WGUS55 KVEF 020833
FFWVEF
AZC015-021130-
/O.NEW.KVEF.FF.W.0034.160702T0833Z-160702T1130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
133 AM MST SAT JUL 2 2016

THE NATIONAL WEATHER SERVICE IN LAS VEGAS  HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHWESTERN MOHAVE COUNTY IN NORTHWESTERN ARIZONA...

* UNTIL 430 AM MST

* AT 132 AM MST...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. FLASH FLOODING IS EXPECTED TO
  BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  BULLHEAD CITY...KINGMAN...LAUGHLIN...YUCCA...NEEDLES...OATMAN...
  ARIZONA VILLAGE...MESQUITE CREEK...CHLORIDE...
  MOJAVE RANCH ESTATES...NEW KINGMAN-BUTLER...
  PACKSADDLE CAMPGROUND...GOLDEN VALLEY...MOHAVE VALLEY...
  WINDY POINT CAMPGROUND...WILLOW VALLEY AND HUALAPAI PEAK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

&&

LAT...LON 3473 11451 3477 11456 3484 11459 3487 11464
      3503 11464 3507 11460 3510 11465 3513 11458
      3520 11457 3536 11460 3543 11465 3551 11385
      3535 11383 3503 11391 3477 11405 3472 11449

$$

BP
1 follow-up statement
343 
WGUS75 KVEF 020929
FFSVEF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
229 AM MST SAT JUL 2 2016

AZC015-021130-
/O.CON.KVEF.FF.W.0034.000000T0000Z-160702T1130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MOHAVE AZ-
229 AM MST SAT JUL 2 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 430 AM MST FOR
SOUTHWESTERN MOHAVE COUNTY...

AT 227 AM MST...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAIN CONTINUE WITHIN THE LOWER SACRAMENTO WASH BETWEEN
TOPOCK AND YUCCA. FLASH FLOODING IS EXPECTED WITHIN THE WARNED AREA.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
BULLHEAD CITY...KINGMAN...LAUGHLIN...YUCCA...NEEDLES...OATMAN...
ARIZONA VILLAGE...MESQUITE CREEK...CHLORIDE...MOJAVE RANCH ESTATES...
NEW KINGMAN-BUTLER...PACKSADDLE CAMPGROUND...GOLDEN VALLEY...
MOHAVE VALLEY...WINDY POINT CAMPGROUND...
WILLOW VALLEY AND HUALAPAI PEAK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

&&

LAT...LON 3473 11451 3477 11456 3484 11459 3487 11464
      3503 11464 3507 11460 3510 11465 3513 11458
      3520 11457 3536 11460 3543 11465 3551 11385
      3535 11383 3503 11391 3477 11405 3472 11449

$$

BP

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 1, 8:50 PM MSTSevere Thunderstorm WarningVEFMohave55 min
Jul 1, 9:38 PM MSTSevere Thunderstorm WarningVEFMohave37 min
Jul 1, 10:14 PM MSTSevere Thunderstorm WarningVEFMohave46 min
Jul 2, 12:19 AM MSTSevere Thunderstorm WarningVEFMohave27 min
Jul 2, 12:33 AM MSTFlash Flood WarningVEFMohave5 hr
Jul 2, 12:57 AM MSTAreal Flood AdvisoryVEFMohave3 hr
Jul 2, 1:26 AM MSTSevere Thunderstorm WarningVEFMohave49 min
Jul 2, 1:52 AM MSTSevere Thunderstorm WarningVEFMohave53 min

Nearby

Flash Flood Warnings in Arizona, 2016Every flash flood warning in 2016

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.