Alert archive / Nevada / Flash Flood Warnings in 2016

Flash Flood Warning 111, NWS Las Vegas, NV

August 26, 2016Clark County, Nevada

NWS Las Vegas, NV issued this flash flood warning at Aug 26, 2016, 8:40 PM PDT for Clark County, Nevada. It was in force for 4 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
Aug 26, 2016, 8:40 PM PDT (03:40 UTC)
Expired
Aug 27, 2016, 12:45 AM PDT
In force
4 hr
Issued by
NWS Las Vegas, NV
Area
Storm-based polygon
Flood severity
None

County Clark County, NV

The radar

The Las Vegas radar (KESX), 49 km from the middle of the area, began a volume at 03:41 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, 3.7 hours before the alert went out and 60 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 2016-08-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 5 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 2016-08-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 22 square meters per square second.193958Sfc1 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
5 J/kg
Mixed-layer CIN
-12 J/kg
Mixed-layer LCL
3514 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
22 m²/s²
0-3 km storm-relative helicity
35 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

683 
WGUS55 KVEF 270340
FFWVEF
NVC003-270545-
/O.NEW.KVEF.FF.W.0111.160827T0340Z-160827T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
840 PM PDT FRI AUG 26 2016

THE NATIONAL WEATHER SERVICE IN LAS VEGAS  HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHWESTERN CLARK COUNTY IN SOUTHERN NEVADA...

* UNTIL 1045 PM PDT

* AT 839 PM PDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN OVER GOODSPRINGS. FLASH FLOODING IS EXPECTED TO BEGIN
  SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  GOODSPRINGS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3589 11529 3576 11537 3580 11558 3592 11545

$$

MORGAN
4 follow-up statements
147 
WGUS75 KVEF 270437
FFSVEF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
937 PM PDT FRI AUG 26 2016

NVC003-270545-
/O.CON.KVEF.FF.W.0111.000000T0000Z-160827T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CLARK NV-
937 PM PDT FRI AUG 26 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1045 PM PDT FOR
SOUTHWESTERN CLARK COUNTY...

AT 936 PM PDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAIN OVER HIGHWAY 161 JUST EAST OF GOODSPRINGS. VERY HEAVY
RAIN ALSO FELL IN GOODSPRINGS EARLIER. FLASH FLOODING IS LIKELY.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
GOODSPRINGS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3589 11529 3576 11537 3580 11558 3592 11545

$$

MORGAN
126 
WGUS55 KVEF 270538
FFWVEF
NVC003-270745-
/O.EXT.KVEF.FF.W.0111.000000T0000Z-160827T0745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
1038 PM PDT FRI AUG 26 2016

THE NATIONAL WEATHER SERVICE IN LAS VEGAS  HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  SOUTHWESTERN CLARK COUNTY IN SOUTHERN NEVADA...

* UNTIL 1245 AM PDT

* AT 1037 PM PDT...DOPPLER RADAR INDICATED MORE HEAVY RAIN MOVING
  OVER GOODSPRINGS AND HIGHWAY 161. FLASH FLOODING IS LIKELY ALREADY
  OCCURRING.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  GOODSPRINGS.

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 3589 11529 3576 11537 3580 11558 3592 11545

$$

MORGAN
526 
WGUS75 KVEF 270644
FFSVEF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
1144 PM PDT FRI AUG 26 2016

NVC003-270745-
/O.CON.KVEF.FF.W.0111.000000T0000Z-160827T0745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CLARK NV-
1144 PM PDT FRI AUG 26 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1245 AM PDT FOR
SOUTHWESTERN CLARK COUNTY...

A MEMBER OF THE THE PUBLIC REPORTED FLASH FLOODING WAS OCCURRING
ABOUT ONE MILE WEST OF JEAN ON STATE ROUTE 161. UP TO THREE INCHES
OF RAIN IS ESTIMATED TO HAVE FALLEN AROUND THE GOODSPRINGS AREA IN
THE PAST FEW HOURS. HEAVY RAIN WAS BEGINNING TO TAPER OFF AND MOVE
EAST BUT FLASH FLOODING WILL CONTINUE BETWEEN GOODSPRINGS AND JEAN
UNTIL AT LEAST 1245 AM.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
GOODSPRINGS.

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 3589 11529 3576 11537 3580 11558 3592 11545

$$

JA
897 
WGUS75 KVEF 270740
FFSVEF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
1240 AM PDT SAT AUG 27 2016

NVC003-270748-
/O.EXP.KVEF.FF.W.0111.000000T0000Z-160827T0745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CLARK NV-
1240 AM PDT SAT AUG 27 2016

...THE FLASH FLOOD WARNING FOR SOUTHWESTERN CLARK COUNTY WILL EXPIRE
AT 1245 AM PDT...

THE HEAVY RAIN ENDED AROUND THE GOODSPRINGS AREA SHORTLY BEFORE
MIDNIGHT AND ANY FLOOD WATERS WILL GRADUALLY RECEDE. PLEASE CONTINUE
TO HEED ANY REMAINING ROAD CLOSURES. ON STATE ROUTE 161 BETWEEN
GOODSPRINGS AND JEAN.

LAT...LON 3589 11529 3576 11537 3580 11558 3592 11545

$$

JA

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 26, 6:38 PM PDTFlash Flood WarningVEFClark3 hr
Aug 26, 7:37 PM PDTFlash Flood WarningVEFClark113 min
Aug 26, 9:23 PM PDTSevere Thunderstorm WarningVEFClark52 min
Aug 26, 9:26 PM PDTFlash Flood WarningVEFClark3 hr
Aug 26, 10:02 PM PDTSevere Thunderstorm WarningVEFClark22 min
Aug 26, 10:07 PM PDTSevere Thunderstorm WarningVEFClark38 min
Aug 26, 10:35 PM PDTFlash Flood WarningVEFClark3 hr
Aug 26, 10:50 PM PDTSevere Thunderstorm WarningVEFClark40 min

Nearby

Flash Flood Warnings in Nevada, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.