Alert archive / Nevada / Flash Flood Warnings in 2001

Flash Flood Warning 1, NWS Elko, NV

May 26, 2001Eureka County, Nevada

NWS Elko, NV issued this flash flood warning at May 26, 2001, 6:15 PM PDT for Eureka County, Nevada. It was in force for 2 hr. 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
May 26, 2001, 6:15 PM PDT (01:15 UTC)
Expired
May 26, 2001, 8:15 PM PDT
In force
2 hr
Issued by
NWS Elko, NV
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Eureka County, NV

The radar

The Elko radar (KLRX), 45 km from the middle of the area, began a volume at 01:18 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

Reno, NV (KREV), launched 00:00Z, 1.3 hours before the alert went out and 182 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, Reno, NV at 00:00Z on 2001-05-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Reno, NV at 00:00Z on 2001-05-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -7 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3995 m above ground
0-6 km bulk shear
5 kt
0-1 km storm-relative helicity
-7 m²/s²
0-3 km storm-relative helicity
-5 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 270120
FFWLKN
NVC011-270315-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ELKO NV
615 PM PDT SAT MAY 26 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTH CENTRAL EUREKA COUNTY IN NEVADA

* UNTIL 815 PM PDT

* AT 615 PM PDT...WEATHER SERVICE DOPPLER RADAR INDICATED VERY
  HEAVY RAIN OVER NORTH CENTRAL EUREKA COUNTY...OR OVER CRESCENT
  VALLEY AND THE CORTEZ MOUNTAINS. THIS STORM WAS SHOWING LITTLE
  MOVEMENT.

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AND NORMALLY DRY WASHES.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
DO NOT ATTEMPT TO CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN
DEPTH BY FOOT OR BY AUTOMOBILE.

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

LAT...LON 4050 11654 4027 11651 4051 11615 4055 11631

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Elko, NV wrote its last area forecast discussion before this flash flood warning went out at May 26, 1:50 PM PDT, 4 hours 25 minutes earlier.

Area forecast discussion, May 26, 1:50 PM PDT, 4 hours 25 minutes before
NORTHERN GREAT BASIN FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ELKO NV
150 PM PDT SAT MAY 26 2001

SYNOPSIS...AN AREA OF LOW PRESSURE WILL MOVE NORTH OF THE SILVER
STATE THROUGH MONDAY. THIS WILL BRING CLOUDS AND COOLER TEMPERATURES
TO THE AREA...AS WELL AS A SMALL THREAT OF THUNDERSTORMS TO THE
CENTRAL MOUNTAIN AREAS. ON WEDNESDAY HIGH PRESSURE WILL BUILD IN ONCE
AGAIN BRINGING WARMER TEMPERATURES AND DRY WEATHER.

SHORT TERM...MID LEVEL DISTURBANCE MOVED THROUGH NORTHERN NEVADA
THIS MORNING...LEAVING DESTABILIZED AIR IN ITS WAKE. THIS UNSTABLE
AIR HAS TRIGGERED A NUMBER OF THUNDERSTORMS...INCLUDING A LINE THAT
LOOKS SEVERE. THE STORMS WILL CONTINUE INTO THE EVENING HOURS...
THEN DISSIPATE WITH THE LOSS OF SURFACE HEATING. SOUTHWEST FLOW
REGIME CURRENTLY OVER OUR AREA WILL DRY THE AIRMASS EVEN FURTHER...
LIMITING THUNDERSTORM POTENTIAL FOR SUNDAY. THE NEXT SYSTEM SPLITS ON
MONDAY...WITH THE NORTHERN BRANCH MOVING INTO IDAHO AND OREGON.
THIS BRANCH WILL HAVE LITTLE AFFECT ON OUR AREA. THE SOUTHERN BRANCH
IS WEAKER...BUT WILL PROVIDE SOME DYNAMICS THAT MAY BE ENOUGH TO SET
OFF SOME STORMS IN THE CENTRAL AND EAST CENTRAL PORTIONS OF THE
STATE.

LONG TERM...RIDGING BEGINS TO BUILD IN AS THE SOUTHERN SYSTEM EXITS
TUESDAY. GENERAL PATTERN BECOMES MORE PROGRESSIVE AFTER DAY 3 SO THAT
BY THE END OF THE EXTENDED ANOTHER TROUGH IS APPROACHING THE WEST
COAST. SINCE FLOW WILL STILL BE SOUTHWESTERLY...WILL NOT MENTION ANY
PRECIPITATION ON SATURDAY...JUST COOLING TEMPERATURES. THE EXCEPTION
WILL BE WHITE PINE COUNTY WHERE IT IS QUESTIONABLE WHETHER OR NOT THE
INCOMING TROUGH WILL AFFECT THEM THAT SOON. PRS

.EKO...NONE.

The office that day

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

IssuedProductOfficeCountiesLasted
May 26, 5:57 PM PDTSevere Thunderstorm WarningLKNElko, Eureka48 min
May 26, 6:46 PM PDTSevere Thunderstorm WarningLKNEureka29 min

Nearby

Flash Flood Warnings in Nevada, 2001Every 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.