Alert archive / Nevada / Flash Flood Warnings in 2001

Flash Flood Warning 2, NWS Elko, NV

July 7, 2001Elko County, Nevada

NWS Elko, NV issued this flash flood warning at Jul 7, 2001, 7:50 PM PDT for Elko County, Nevada. It was in force for 55 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: Jul 7, 2001, 7:50 PM PDT (02:50 UTC)
Expired: Jul 7, 2001, 8:45 PM PDT
In force: 55 min
Issued by: NWS Elko, NV
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Elko County, NV

The radar

The Salt Lake City radar (KMTX), 199 km from the middle of the area, began a volume at 02:51 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

Elko, NV (KLKN), launched 00:00Z, 2.8 hours before the alert went out and 68 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: 151 J/kg
Mixed-layer CIN: -23 J/kg
Mixed-layer LCL: 1140 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: -53 m²/s²
0-3 km storm-relative helicity: -15 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 KLKN 080254
FFWLKN
NVC007-080345-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ELKO NV
750 PM PDT SAT JUL 7 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EXTREME SOUTHEASTERN ELKO COUNTY IN NEVADA

* UNTIL 845 PM PDT

* AT 745 PM PDT...WEATHER SERVICE DOPPLER RADAR INDICATED VERY
  HEAVY RAIN OVER EXTREME SOUTHEASTERN ELKO COUNTY ABOUT 19 MILES
  EAST OF CURRIE...OR 40 MILES SOUTHWEST OF WENDOVER ALONG US
  HIGHWAY 93...MOVING NORTH AT 20 MPH.

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF CREEKS
AND STREAMS...ROADS AND ROADSIDE CULVERTS. THE HEAVY RAINS COULD ALSO
TRIGGER ROCK AND MUDSLIDES IN STEEP TERRAIN.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY.
MOVE TO HIGHER GROUND.

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

LAT...LON 4013 11450 4014 11427 4049 11425 4049 11455

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 7, 7:20 PM PDT	Severe Thunderstorm Warning	LKN	Elko	25 min
Jul 8, 3:41 PM PDT	Flash Flood Warning	LKN	White Pine	49 min
Jul 8, 4:26 PM PDT	Flash Flood Warning	LKN	White Pine	64 min

Nearby

Flash Flood Warnings in Nevada, 2001 Every flash flood warning in 2001

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.