Alert archive / Nevada / Flash Flood Warnings in 2000

Flash Flood Warning 5, NWS Las Vegas, NV

August 16, 2000Clark County, Nevada

NWS Las Vegas, NV issued this flash flood warning at Aug 16, 2000, 5:22 PM PDT for Clark County, Nevada. It was in force for 113 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued
Aug 16, 2000, 5:22 PM PDT (00:22 UTC)
Expired
Aug 16, 2000, 7:15 PM PDT
In force
113 min
Issued by
NWS Las Vegas, NV
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Clark County, NV

The nearest sounding before it

Mercury/Desert R, NV (KDRA), launched 00:00Z, 0.4 hours before the alert went out and 115 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, Mercury/Desert R, NV at 00:00Z on 2000-08-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 388 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Mercury/Desert R, NV at 00:00Z on 2000-08-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 44 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
388 J/kg
Mixed-layer CIN
-133 J/kg
Mixed-layer LCL
2527 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
44 m²/s²
0-3 km storm-relative helicity
129 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

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

000 
WGUS55 KVEF 170023
FFWVEF
NVC003-170215-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
522 PM PDT WED AUG 16 2000

THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A

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

* UNTIL 715 PM PDT

* AT 522 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A THUNDERSTORM WITH VERY HEAVY RAIN OVER CENTRAL CLARK COUNTY...OR
  ABOUT OVER CALLVILLE BAY IN THE LAKE MEAD NATIONAL RECREATION AREA.

* THE THUNDERSTORM WAS DISSIPATING BUT HEAVY RAINFALL EARLIER WILL
CAUSE EXCESSIVE RUNOFF BETWEEN LAS VEGAS BAY AND CALLVILLE BAY ALONG
THE NORTH SHORE ROAD AREA OF LAKE MEAD. FLASH FLOODING OF DRY WASHES
AND RURAL ROADS IN THIS AREA IS HIGHLY LIKELY.

LAT...LON 3640 11470 3633 11496 3612 11490 3617 11464

NNNN

Nearby

Flash Flood Warnings in Nevada, 2000Every flash flood warning in 2000

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.