Alert archive / Nevada / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 8, NWS Elko, NV

June 20, 2002Elko County, Nevada

NWS Elko, NV issued this severe thunderstorm warning at Jun 20, 2002, 4:09 PM PDT for Elko County, Nevada. It was in force for 36 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
Jun 20, 2002, 4:09 PM PDT (23:09 UTC)
Expired
Jun 20, 2002, 4:45 PM PDT
In force
36 min
Issued by
NWS Elko, NV
Area
Counties, with a storm outline in the text

County Elko County, NV

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Elko, NV (KLKN), launched 12:00Z, 11.2 hours before the alert went out and 193 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, Elko, NV at 12:00Z on 2002-06-20Temperature 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, Elko, NV at 12:00Z on 2002-06-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 113 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
3511 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
113 m²/s²
0-3 km storm-relative helicity
167 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 
WUUS55 KLKN 202309
SVRLKN
NVC007-202345-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ELKO NV
408 PM PDT THU JUN 20 2002

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN ELKO COUNTY IN NEVADA

* UNTIL 445 PM PDT

* AT 401 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER WEST CENTRAL ELKO COUNTY...OR ABOUT 51
  MILES NORTHWEST OF ELKO...MOVING NORTH AT 25 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
RURAL WESTERN ELKO COUNTY AT 420 PM PDT
RURAL NORTHWESTERN ELKO COUNTY AT 430 PM PDT

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

LAT...LON 4143 11651 4131 11635 4178 11571 4195 11648

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Jun 20, 2:25 PM PDT, 1 hour 44 minutes earlier.

Area forecast discussion, Jun 20, 2:25 PM PDT, 1 hour 44 minutes before
NORTHERN GREAT BASIN FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ELKO NV
225 PM PDT THU JUN 20 2002

SYNOPSIS...A SERIES OF WEAK WEATHER SYSTEMS WILL MOVE THROUGH
NORTHERN NEVADA AND EXIT THE NORTHEAST CORNER OF THE STATE ON
SATURDAY. SUNDAY THROUGH THURSDAY WILL BE WARM AND DRY EXCEPT FOR A
SLIGHT CHANCE OF AFTERNOON THUNDERSTORMS MONDAY THROUGH WEDNESDAY.

DISCUSSION...WEAK SHORTWAVE CURRENTLY MOVING NORTH THROUGH THE STATE
WILL CONTINUE SHOWERS AND THUNDERSTORMS THIS EVENING...LEAST IN
WHITEPINE AND HUMBOLDT COUNTIES. A SECOND WAVE CURRENTLY ON THE
CALIFORNIA COAST WILL MOVE THROUGH FRIDAY AFTERNOON AND NIGHT.
WILL INCREASE POPS TO CHANCE FOR THOSE PERIODS AND MOVE THE RAIN OUT
THE NORTHEAST CORNER BY SATURDAY AFTERNOON. THE DRY 5H RIDGE
WILL BUILD OVER THE AREA.  A THIRD SHORTWAVE WILL MOVE TO WEST OF
CALIFORNIA AND STALL BY MONDAY MORNING. MODELS CAN NOT SEEM TO DECIDE
WHAT TO DO WITH THIS LOW. THE MORE IT ACTUALLY PUSHES EAST INTO THE
5H HIGH...THE MORE THUNDERSTORMS WOULD BE A PROBLEM. WE HAVE WEAK
SOUTHWEST FLOW OVER THE AREA MONDAY THROUGH THURSDAY BUT THE WEAK
IMPULSES IN THE FLOW MAY TRIGGER OFF ISOLATED THUNDERSTORMS...MOSTLY
DRY. WILL LEAVE MENTION OF ISOLATED AFTERNOON THUNDERSTORMS ALL ZONES
MONDAY THROUGH WEDNESDAY. NEYMAN

.EKO...NONE.

Nearby

Severe Thunderstorm Warnings in Nevada, 2002Every severe thunderstorm warning in 2002

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.