Alert archive / Nevada / Flash Flood Warnings in 2016

Flash Flood Warning 20, NWS Las Vegas, NV

June 30, 2016Clark County, Nevada; San Bernardino County, California; Mohave County, Arizona

NWS Las Vegas, NV issued this flash flood warning at Jun 30, 2016, 5:54 PM PDT for Clark County, Nevada; San Bernardino County, California; Mohave County, Arizona. It was in force for 6 hr. 4 reports 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
Jun 30, 2016, 5:54 PM PDT (00:54 UTC)
Expired
Jul 1, 2016, 12:00 AM PDT
In force
6 hr
Issued by
NWS Las Vegas, NV
Area
Storm-based polygon
Flood severity
None

Counties Mohave County, AZ, San Bernardino County, CA, Clark County, NV

The radar

The Las Vegas radar (KESX), 53 km from the middle of the area, began a volume at 00:56 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
Jun 30, 6:51 PM PDTFLASH FLOOD15 Nw Needles, CAMAJOR FLOODING REPORTED AT US 95 AND GOFFS ROAD. MUD WAS IN THE ROADWAY.
Jun 30, 7:00 PM PDTFLASH FLOOD1 Ssw Bullhead City, AZSWIFTLY FLOWING WATER AT LEAST SIX INCHES DEEP COVERING PORTIONS OF CHAPARRAL DRIVE IN BULLHEAD CITY. REPORT RELAYED VIA SOCIAL MEDIA. TIME ESTIMATED BASED ON RADAR.
Jun 30, 9:30 PM PDTFLASH FLOOD14 Nnw Needles, CACALIFORNIA HIGHWAY PATROL REPORTS FLASH FLOODING AT NEEDLES HIGHWAY AND RIVER ROAD. SEVERAL ADJACENT COUNTY ROADS ARE ALSO WASHED OUT. START TIME OF 730 PM PDT AND ONGOING AT REPORT TIME OF 930 PM PDT.
Jun 30, 10:06 PM PDTFLASH FLOOD1 Wnw Needles, CACALIFORNIA HIGHWAY PATROL REPORTS US HIGHWAY 95 IS CLOSED AT INTERSTATE 40 OWING TO HEAVY RAIN AND FLASH FLOODING.

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

The nearest sounding before it

Flgstf/Belemont, AZ (KFGZ), launched 00:00Z, 0.9 hours before the alert went out and 289 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, Flgstf/Belemont, AZ at 00:00Z on 2016-07-01Temperature 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 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Flgstf/Belemont, AZ at 00:00Z on 2016-07-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -88 square meters per square second.19395878Sfc1 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
1732 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
-88 m²/s²
0-3 km storm-relative helicity
-134 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

229 
WGUS55 KVEF 010054
FFWVEF
AZC015-CAC071-NVC003-010400-
/O.NEW.KVEF.FF.W.0020.160701T0054Z-160701T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
554 PM PDT THU JUN 30 2016

THE NATIONAL WEATHER SERVICE IN LAS VEGAS  HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WEST CENTRAL MOHAVE COUNTY IN NORTHWESTERN ARIZONA...
  NORTHEASTERN SAN BERNARDINO COUNTY IN SOUTHERN CALIFORNIA...
  SOUTH CENTRAL CLARK COUNTY IN SOUTHERN NEVADA...

* UNTIL 900 PM PDT/900 PM MST/

* AT 552 PM PDT/552 PM MST/...DOPPLER RADAR AND AUTOMATED RAIN GAUGES
  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...LAUGHLIN...KATHERINE LANDING...SEARCHLIGHT...
  TOPOCK...NEEDLES...ARIZONA VILLAGE...MESQUITE CREEK...ESSEX...
  NIPTON...BIG BEND REC AREA...MOJAVE RANCH ESTATES...CAL-NEV-ARI...
  HIGHWAY 95 AND I-40...MOHAVE VALLEY...NIPTON ROAD MILE MARKER 3...
  COTTONWOOD COVE...COTTONWOOD COVE CAMPGROUND AND WILLOW VALLEY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 3556 11532 3565 11445 3469 11444 3467 11536

$$

CMS
7 follow-up statements
563 
WGUS75 KVEF 010256
FFSVEF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
756 PM PDT THU JUN 30 2016

AZC015-CAC071-NVC003-010400-
/O.CON.KVEF.FF.W.0020.000000T0000Z-160701T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MOHAVE AZ-SAN BERNARDINO CA-CLARK NV-
756 PM PDT THU JUN 30 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 900 PM PDT/900 PM
MST/ FOR WEST CENTRAL MOHAVE...NORTHEASTERN SAN BERNARDINO AND SOUTH
CENTRAL CLARK COUNTIES...

AT 754 PM PDT/754 PM MST/...DOPPLER RADAR AND AUTOMATED RAIN GAUGES
INDICATED THUNDERSTORMS PRODUCING HEAVY RAIN OVER THE WARNED AREA.
AUTOMATED GAUGES HAVE REPORTED ONE TO TWO INCHES OF RAINFALL HAVE
OCCURRED NEAR LAUGHLIN AND BULLHEAD CITY. FLASH FLOODING IS LIKELY.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
BULLHEAD CITY...LAUGHLIN...KATHERINE LANDING...SEARCHLIGHT...
TOPOCK...NEEDLES...ARIZONA VILLAGE...MESQUITE CREEK...ESSEX...
NIPTON...BIG BEND REC AREA...MOJAVE RANCH ESTATES...CAL-NEV-ARI...
HIGHWAY 95 AND I-40...MOHAVE VALLEY...NIPTON ROAD MILE MARKER 3...
COTTONWOOD COVE...COTTONWOOD COVE CAMPGROUND AND WILLOW VALLEY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 3556 11532 3565 11445 3469 11444 3467 11536

$$

CMS
698 
WGUS75 KVEF 010327
FFSVEF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
827 PM PDT THU JUN 30 2016

AZC015-CAC071-NVC003-010400-
/O.CON.KVEF.FF.W.0020.000000T0000Z-160701T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MOHAVE AZ-SAN BERNARDINO CA-CLARK NV-
827 PM PDT THU JUN 30 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 900 PM PDT/900 PM
MST/ FOR WEST CENTRAL MOHAVE...NORTHEASTERN SAN BERNARDINO AND SOUTH
CENTRAL CLARK COUNTIES...

AT 826 PM PDT/826 PM MST/...LOCAL LAW ENFORCEMENT REPORTED FLASH
FLOODING ON US HIGHWAY 95 NEAR GOFFS ROAD IN SAN BERNARDINO COUNTY.
ALTHOUGH THE HEAVIEST RAINFALL HAS ENDED...FLASH FLOODING IS
EXPECTED TO CONTINUE THIS EVENING.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
BULLHEAD CITY...LAUGHLIN...KATHERINE LANDING...SEARCHLIGHT...
TOPOCK...NEEDLES...ARIZONA VILLAGE...MESQUITE CREEK...ESSEX...
NIPTON...BIG BEND REC AREA...MOJAVE RANCH ESTATES...CAL-NEV-ARI...
HIGHWAY 95 AND I-40...MOHAVE VALLEY...NIPTON ROAD MILE MARKER 3...
COTTONWOOD COVE...COTTONWOOD COVE CAMPGROUND AND WILLOW VALLEY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 3556 11532 3565 11445 3469 11444 3467 11536

$$

CMS
592 
WGUS55 KVEF 010356
FFWVEF
AZC015-CAC071-NVC003-010500-
/O.EXT.KVEF.FF.W.0020.000000T0000Z-160701T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
856 PM PDT THU JUN 30 2016

THE NATIONAL WEATHER SERVICE IN LAS VEGAS  HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  WEST CENTRAL MOHAVE COUNTY IN NORTHWESTERN ARIZONA...
  NORTHEASTERN SAN BERNARDINO COUNTY IN SOUTHERN CALIFORNIA...
  SOUTH CENTRAL CLARK COUNTY IN SOUTHERN NEVADA...

* UNTIL 1000 PM PDT/1000 PM MST/

* AT 854 PM PDT/854 PM MST/...LOCAL LAW ENFORCEMENT OFFICIALS
  REPORTED FLASH FLOODING ON US HIGHWAY 95 NEAR AND NORTH OF
  NEEDLES. ALTHOUGH THE HEAVIEST RAINFALL HAS ENDED...RUNOFF FROM
  PREVIOUS STORMS WILL CONTINUE TO PRODUCE FLASH FLOODING ACROSS THE
  WARNED AREA THIS EVENING.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  BULLHEAD CITY...LAUGHLIN...KATHERINE LANDING...SEARCHLIGHT...
  TOPOCK...NEEDLES...ARIZONA VILLAGE...MESQUITE CREEK...ESSEX...
  NIPTON...BIG BEND REC AREA...MOJAVE RANCH ESTATES...CAL-NEV-ARI...
  HIGHWAY 95 AND I-40...MOHAVE VALLEY...NIPTON ROAD MILE MARKER 3...
  COTTONWOOD COVE...COTTONWOOD COVE CAMPGROUND AND WILLOW VALLEY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

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

&&

LAT...LON 3556 11532 3565 11445 3469 11444 3467 11536

$$

CMS
584 
WGUS75 KVEF 010437
FFSVEF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
937 PM PDT THU JUN 30 2016

AZC015-CAC071-NVC003-010500-
/O.CON.KVEF.FF.W.0020.000000T0000Z-160701T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MOHAVE AZ-SAN BERNARDINO CA-CLARK NV-
937 PM PDT THU JUN 30 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1000 PM PDT/1000
PM MST/ FOR WEST CENTRAL MOHAVE...NORTHEASTERN SAN BERNARDINO AND
SOUTH CENTRAL CLARK COUNTIES...

AT 936 PM PDT/936 PM MST/...LOCAL LAW ENFORCEMENT REPORTED FLASH
FLOODING ON US 95 AND RIVER ROAD IN SAN BERNARDINO COUNTY. ALTHOUGH
THE HEAVIEST RAINFALL HAS ENDED, FLOODING IS EXPECTED TO CONTINUE
THROUGH THE EVENING.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
BULLHEAD CITY...LAUGHLIN...KATHERINE LANDING...SEARCHLIGHT...
TOPOCK...NEEDLES...ARIZONA VILLAGE...MESQUITE CREEK...ESSEX...
NIPTON...BIG BEND REC AREA...MOJAVE RANCH ESTATES...CAL-NEV-ARI...
HIGHWAY 95 AND I-40...MOHAVE VALLEY...NIPTON ROAD MILE MARKER 3...
COTTONWOOD COVE...COTTONWOOD COVE CAMPGROUND AND WILLOW VALLEY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

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

&&

LAT...LON 3556 11532 3565 11445 3469 11444 3467 11536

$$

CMS
648 
WGUS55 KVEF 010455
FFWVEF
AZC015-CAC071-NVC003-010700-
/O.EXT.KVEF.FF.W.0020.000000T0000Z-160701T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
955 PM PDT THU JUN 30 2016

THE NATIONAL WEATHER SERVICE IN LAS VEGAS  HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  WEST CENTRAL MOHAVE COUNTY IN NORTHWESTERN ARIZONA...
  NORTHEASTERN SAN BERNARDINO COUNTY IN SOUTHERN CALIFORNIA...
  SOUTH CENTRAL CLARK COUNTY IN SOUTHERN NEVADA...

* UNTIL MIDNIGHT PDT/MIDNIGHT MST/

* AT 953 PM PDT/953 PM MST/...LOCAL LAW ENFORCEMENT OFFICIALS
  CONTINUED TO REPORT FLASH FLOODING ON U.S. HIGHWAY 95 BETWEEN CAL-
  NEV-ARI AND NEEDLES AND NEAR NEEDLES HIGHWAY AND RIVER ROAD.
  TRAVEL IS NOT RECOMMENDED IN THIS AREA TONIGHT.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  BULLHEAD CITY...LAUGHLIN...KATHERINE LANDING...SEARCHLIGHT...
  TOPOCK...NEEDLES...ARIZONA VILLAGE...MESQUITE CREEK...ESSEX...
  NIPTON...BIG BEND REC AREA...MOJAVE RANCH ESTATES...CAL-NEV-ARI...
  HIGHWAY 95 AND I-40...MOHAVE VALLEY...NIPTON ROAD MILE MARKER 3...
  COTTONWOOD COVE...COTTONWOOD COVE CAMPGROUND AND WILLOW VALLEY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3556 11532 3565 11445 3469 11444 3467 11536

$$

CMS
089 
WGUS75 KVEF 010554
FFSVEF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
1054 PM PDT THU JUN 30 2016

AZC015-010601-
/O.CAN.KVEF.FF.W.0020.000000T0000Z-160701T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MOHAVE AZ-
1054 PM PDT THU JUN 30 2016

...THE FLASH FLOOD WARNING FOR WEST CENTRAL MOHAVE COUNTY IS
CANCELLED...

FLASH FLOODING IS NO LONGER EXPECTED TO POSE A THREAT. PLEASE
CONTINUE TO HEED ANY REMAINING ROAD CLOSURES.

LAT...LON 3467 11536 3536 11507 3529 11459 3512 11461
      3510 11465 3508 11461 3503 11464 3487 11464
      3484 11459 3477 11456 3471 11447 3469 11447

$$

CAC071-NVC003-010700-
/O.CON.KVEF.FF.W.0020.000000T0000Z-160701T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SAN BERNARDINO CA-CLARK NV-
1054 PM PDT THU JUN 30 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT PDT FOR
EAST CENTRAL SAN BERNARDINO AND SOUTH CENTRAL CLARK COUNTIES...

AT 1051 PM PDT...LOCAL LAW ENFORCEMENT REPORTED THE CLOSURE OF U.S.
HIGHWAY 95 AT INTERSTATE 40 OWING TO RAPID RUNOFF AND FLASH
FLOODING. SEVERAL OTHER ROADS REMAIN CLOSED AND IMPASSABLE BETWEEN
CAL-NEV-ARI AND NEEDLES. TRAVEL IS NOT RECOMMENDED IN THIS AREA
OVERNIGHT.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
BULLHEAD CITY...LAUGHLIN...NEEDLES...CAL-NEV-ARI...
HIGHWAY 95 AND I-40...ESSEX AND BIG BEND REC AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

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

&&

LAT...LON 3467 11536 3536 11507 3529 11459 3512 11461
      3510 11465 3508 11461 3503 11464 3487 11464
      3484 11459 3477 11456 3471 11447 3469 11447

$$

CMS
566 
WGUS75 KVEF 010651
FFSVEF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
1151 PM PDT THU JUN 30 2016

CAC071-NVC003-010700-
/O.EXP.KVEF.FF.W.0020.000000T0000Z-160701T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SAN BERNARDINO CA-CLARK NV-
1151 PM PDT THU JUN 30 2016

...THE FLASH FLOOD WARNING FOR EAST CENTRAL SAN BERNARDINO AND SOUTH
CENTRAL CLARK COUNTIES WILL EXPIRE AT MIDNIGHT PDT...

THE HEAVY RAIN HAS ENDED. FLOODING IS NO LONGER EXPECTED TO POSE A
THREAT. PLEASE CONTINUE TO HEED ANY ROAD CLOSURES.

LAT...LON 3467 11536 3536 11507 3529 11459 3512 11461
      3510 11465 3508 11461 3503 11464 3487 11464
      3484 11459 3477 11456 3471 11447 3469 11447

$$

MORGAN

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 30, 5:48 PM PDTSevere Thunderstorm WarningVEFClark42 min
Jun 30, 6:26 PM PDTSevere Thunderstorm WarningVEFClark34 min
Jun 30, 6:59 PM PDTSevere Thunderstorm WarningVEFClark31 min
Jun 30, 10:56 PM PDTSevere Thunderstorm WarningVEFNye64 min
Jun 30, 11:08 PM PDTFlash Flood WarningVEFNye4 hr
Jun 30, 11:49 PM PDTFlash Flood WarningVEFClark, Nye3 hr
Jul 1, 3:34 PM PDTAreal Flood AdvisoryVEFNye3 hr
Jul 1, 4:54 PM PDTAreal Flood AdvisoryVEFLincoln4 hr
Jun 30, 10:32 PM PDTFlash Flood WarningVEFInyo3 hr
Jul 1, 1:41 AM PDTFlash Flood WarningVEFSan Bernardino3 hr
Jul 1, 2:06 AM PDTFlash Flood WarningVEFSan Bernardino3 hr
Jul 1, 3:36 AM PDTFlash Flood WarningVEFSan Bernardino3 hr
Jul 1, 3:12 PM PDTSevere Thunderstorm WarningVEFSan Bernardino63 min
Jul 1, 3:25 PM PDTAreal Flood AdvisoryVEFSan Bernardino3 hr
Jul 1, 4:05 PM PDTSevere Thunderstorm WarningVEFSan Bernardino55 min
Jul 1, 4:24 PM PDTFlash Flood WarningVEFSan Bernardino3 hr
Jul 1, 4:59 PM PDTSevere Thunderstorm WarningVEFSan Bernardino61 min
Jun 30, 5:46 PM PDTFlash Flood WarningVEFMohave3 hr
Jun 30, 6:20 PM PDTDust Storm WarningVEF100 min
Jun 30, 8:55 PM PDTAreal Flood WarningVEFMohave12 hr

Nearby

Flash Flood Warnings in Nevada, 2016Flash Flood Warnings in California, 2016Flash 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.