Alert archive / Nevada / Flash Flood Warnings in 2003

Flash Flood Warning 30, NWS Las Vegas, NV

August 19, 2003Lincoln County, Nevada

NWS Las Vegas, NV issued this flash flood warning at Aug 19, 2003, 9:47 PM PDT for Lincoln County, Nevada. It was in force for 118 min. 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 19, 2003, 9:47 PM PDT (04:47 UTC)
Expired
Aug 19, 2003, 11:45 PM PDT
In force
118 min
Issued by
NWS Las Vegas, NV
Area
Counties, with a storm outline in the text

County Lincoln County, NV

The radar

The Cedar City radar (KICX), 158 km from the middle of the area, began a volume at 04:49 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

Mercury/Desert R, NV (KDRA), launched 00:00Z, 4.8 hours before the alert went out and 188 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 2003-08-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 111 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, Mercury/Desert R, NV at 00:00Z on 2003-08-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -39 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
111 J/kg
Mixed-layer CIN
-227 J/kg
Mixed-layer LCL
3084 m above ground
0-6 km bulk shear
4 kt
0-1 km storm-relative helicity
-39 m²/s²
0-3 km storm-relative helicity
45 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.

000 
WGUS55 KVEF 200452
FFWVEF
NVC017-200645-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
947 PM PDT TUE AUG 19 2003

THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CENTRAL LINCOLN COUNTY IN SOUTH CENTRAL NEVADA

* UNTIL 1145 PM PDT

* AT 947 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  THUNDERSTORM WITH VERY HEAVY RAIN 6 MILES SOUTHWEST OF PANACA...
  MOVING NORTHEAST AT 20 MPH.

AT 950 PM THE SHERIFF DEPARTMENT IN PIOCHE REPORTED HEAVY RAIN 
THROUGHOUT THE CALIENTE...PANACA...PIOCHE AREA ALONG HIGHWAY 93. 
RAINFALL AMOUNTS OF UP TO AN INCH HAVE FALLEN IN THIS AREA OVER THE 
PAST 30 MINUTES AND WITH PONDING ALREADY BEING REPORTED.

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF WASHES 
AND SMALL STREAMS. ADDITIONALLY CAUTION NEEDS TO BE USED ON HIGHWAY 
93 AND ALSO STATE ROUTE 319 AS WATER MAY WASH OVER THE ROADS.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT
ATTEMPT TO CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY
FOOT OR BY AUTOMOBILE. IF YOUR VEHICLE STALLS...ABANDON IT AND SEEK
HIGHER GROUND.

LAT...LON 3748 11495 3748 11410 3852 11409 3851 11497

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 19, 5:44 PM PDTFlash Flood WarningVEFClark3 hr
Aug 19, 8:20 PM PDTFlash Flood WarningVEFClark2 hr
Aug 19, 10:25 PM PDTFlash Flood WarningVEFClark6 hr
Aug 19, 11:43 PM PDTFlash Flood WarningVEFLincoln2 hr

Nearby

Flash Flood Warnings in Nevada, 2003Every flash flood warning in 2003

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.