Alert archive / Arizona / Flash Flood Warnings in 2014

Flash Flood Warning 37, NWS Las Vegas, NV

July 26, 2014Mohave County, Arizona

NWS Las Vegas, NV issued this flash flood warning at Jul 26, 2014, 2:17 PM MST for Mohave County, Arizona. It was in force for 3 hr. 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 26, 2014, 2:17 PM MST (21:17 UTC)
Expired: Jul 26, 2014, 5:15 PM 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), 115 km from the middle of the area, began a volume at 21:19 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, 9.3 hours before the alert went out and 185 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 16 J/kg
Mixed-layer CIN: -182 J/kg
Mixed-layer LCL: 2074 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: -4 m²/s²
0-3 km storm-relative helicity: 94 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.

740 
WGUS55 KVEF 262117
FFWVEF
AZC015-270015-
/O.NEW.KVEF.FF.W.0037.140726T2117Z-140727T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
217 PM MST SAT JUL 26 2014

THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CENTRAL MOHAVE COUNTY IN NORTHWEST ARIZONA...

* UNTIL 515 PM MST

* AT 214 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  FLASH FLOODING FROM A THUNDERSTORM NEAR HUALAPAI MOUNTAIN PARK...OR
  11 MILES SOUTHEAST OF KINGMAN. THE STORM PRODUCING FLASH FLOODING
  WAS NEARLY STATIONARY.

* LOCATIONS IMPACTED INCLUDE...
  DW RANCH ROAD
  BLAKE RANCH ROAD
  BLAKE RANCH RV PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAIN IS FALLING ON THE DEAN PEAK BURN AREA. WATER LEVELS WILL RISE 
VERY RAPIDLY...LEADING TO MUD AND DEBRIS FLOWS IN AND DOWNSTREAM OF 
THE BURN AREA.

&&

LAT...LON 3520 11392 3516 11366 3508 11366 3508 11389
      3513 11393

$$

DSB

1 follow-up statement

775 
WGUS75 KVEF 262218
FFSVEF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
318 PM MST SAT JUL 26 2014

AZC015-262227-
/O.CAN.KVEF.FF.W.0037.000000T0000Z-140727T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MOHAVE AZ-
318 PM MST SAT JUL 26 2014

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

RAIN HAS ENDED OVER THE DEAN PEAK BURN AREA.  THE THREAT OF FLOODING 
HAS SUBSIDED FOR NOW.

LAT...LON 3520 11392 3516 11366 3508 11366 3508 11389
      3513 11393

$$

DSB

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 25, 7:11 PM MST	Areal Flood Advisory	VEF	Mohave	109 min
Jul 25, 9:04 PM MST	Flash Flood Warning	VEF	Mohave	3 hr
Jul 25, 10:10 PM MST	Flash Flood Warning	VEF	Mohave	2 hr
Jul 26, 3:31 PM MST	Areal Flood Advisory	VEF	Mohave	3 hr

Nearby

Flash Flood Warnings in Arizona, 2014 Every flash flood warning in 2014

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.