Alert archive / Nevada / Flash Flood Warnings in 2003

Flash Flood Warning 10, NWS Reno, NV

August 4, 2003Washoe County, Nevada

NWS Reno, NV issued this flash flood warning at Aug 4, 2003, 4:57 PM PDT for Washoe County, Nevada. It was in force for 63 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 4, 2003, 4:57 PM PDT (23:57 UTC)
Expired: Aug 4, 2003, 6:00 PM PDT
In force: 63 min
Issued by: NWS Reno, NV
Area: Whole counties

County Washoe County, NV

The nearest sounding before it

Reno, NV (KREV), launched 12:00Z, 12.0 hours before the alert went out and 174 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: 266 J/kg
Mixed-layer CIN: -76 J/kg
Mixed-layer LCL: 1316 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 61 m²/s²
0-3 km storm-relative helicity: 239 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.0

Open this sounding in Storm Lab

The text

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

000 
WGUS55 KREV 042357
FFWREV
NVC031-050100-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE RENO NV
457 PM PDT MON AUG 4 2003

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTH CENTRAL WASHOE COUNTY IN WESTERN NEVADA

* UNTIL 600 PM PDT

* AT 450 PM PDT...WEATHER SPOTTERS REPORTED 1 INCH OF RAIN IN 10     
  MINUTES IN THE PALOMINO VALLEY ALONG HIGHWAY 445.  THE             
  THUNDERSTORM PRODUCING THE HEAVY RAINFALL IS 8 MILES SOUTH OF      
  SUTCLIFFE...OR ABOUT 16 MILES SOUTH OF PYRAMID LAKE...MOVING NORTH 
  AT 20 MPH.

* THE THUNDERSTORM WITH EXCESSIVE RAINFALL WILL BE NEAR...
  SUTCLIFFE AT 505 PM PDT

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD 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 IMMEDIATELY AND SEEK
HIGHER GROUND.

TO REPORT DAMAGING WEATHER HAVE THE NEAREST LAW ENFORCEMENT AGENCY
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE.

$$

LAT...LON 3979 11969 3978 11945 4003 11942 4004 11968

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 4, 4:13 PM PDT	Severe Thunderstorm Warning	REV	Washoe	32 min
Aug 4, 4:44 PM PDT	Severe Thunderstorm Warning	REV	Washoe	46 min

Nearby

Flash Flood Warnings in Nevada, 2003 Every 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.