Alert archive / Nevada / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 22, NWS Elko, NV

August 22, 2003Lander County, Nevada

NWS Elko, NV issued this severe thunderstorm warning at Aug 22, 2003, 1:07 PM PDT for Lander County, Nevada. It was in force for 53 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 22, 2003, 1:07 PM PDT (20:07 UTC)
Expired: Aug 22, 2003, 2:00 PM PDT
In force: 53 min
Issued by: NWS Elko, NV
Area: Counties, with a storm outline in the text

County Lander 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Aug 22, 12:55 PM PDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Reno, NV (KREV), launched 12:00Z, 8.1 hours before the alert went out and 104 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: 184 J/kg
Mixed-layer CIN: -109 J/kg
Mixed-layer LCL: 1102 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 49 m²/s²
0-3 km storm-relative helicity: 83 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

000 
WUUS55 KLKN 222007
SVRLKN
NVC015-222100-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ELKO NV
107 PM PDT FRI AUG 22 2003

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL LANDER COUNTY IN NEVADA

* UNTIL 200 PM PDT

* AT 104 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER CENTRAL LANDER COUNTY...OR ABOUT 35 MILES
  WEST OF GRASS VALLEY...MOVING NORTHEAST AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
STATE HIGHWAY 305 IN CENTRAL LANDER COUNTY AT 120 PM PDT

VERY LARGE HAIL IS POSSIBLE WITH THIS SEVERE THUNDERSTORM. IF YOU ARE
IN THE PATH OF THE STORM...PUT YOUR CAR IN A GARAGE AND MOVE TO A
SUBSTANTIAL SHELTER.

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD PREPARE
FOR DAMAGING WINDS IN EXCESS OF 55 MPH...LARGE HAIL...AND DEADLY
LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...PREFERABLY
INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

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

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM PDT FRIDAY
EVENING FOR NEVADA.

LAT...LON 4003 11739 3990 11723 4025 11684 4038 11719

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 Aug 22, 8:51 AM PDT, 4 hours 16 minutes earlier.

Area forecast discussion, Aug 22, 8:51 AM PDT, 4 hours 16 minutes before

NORTHERN GREAT BASIN FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ELKO NV
851 AM PDT FRI AUG 22 2003

ACTIVE WEATHER DAY TODAY. WATER VAPOR IMAGERY SHOWING LOW OFF THE
CENTRAL CALIFORNIA COAST STARTING TO MOVE INLAND NEAR SFO. DRY AIR
MOVING INTO SOUTHERN NEVADA...BUT STILL DEEP OVER NORTHERN PORTIONS
OF THE STATE. 12Z LKN SOUNDING SHOWS LIS OF NEG 4.5 WITH SOME DRYING
ALOFT NEAR 20K FT. SO...BOTH MODELS ARE UNDERESTIMATING THE
INSTABILITY OVER THE AREA. CONVERGENCE ZONE SET UP CURRENTLY SET UP
OVER NORTH CENTRAL ELKO...SOUTHWEST TO NORTHERN LANDER COUNTY. ETA
KEEPS THIS BOUNDARY IN THE SAME GENERAL LOCATION FOR MOST OF THE
MORNING AND AFTERNOON AND THEN SLOWLY EASTWARD THIS EVENING UNTIL
ABOUT 12Z SATURDAY MORNING. JET ASSOCIATED WITH CALIFORNIA LOW STARTS
MAKING ITS WAY INTO OUR FORECAST AREA THIS AFTERNOON. ALL THIS
SUPPORTS OUR CURRENT FORECAST OF HEAVY PRECIPITATION AND SOME SEVERE
THUNDERSTORMS. MOST OF THE SEVERE THUNDERSTORMS SHOULD BE
CONCENTRATED ALONG THE CONVERGENCE BOUNDARY...AGAIN ALONG A LINE
FROM ROUGHLY JACKPOT SOUTHWEST TO MAYBE BATTLE MOUNTAIN. DRY AIR
INTRUSION THIS AFTERNOON WILL ONLY ENHANCE HAIL FORMATION. ZONE
FINALLY MOVES UP INTO EASTERN IDAHO TOMORROW MORNING WITH RAPID
DRYING. ONLY DISAGREEMENT WITH CURRENTLY PACKAGE IS THE BREEZY
WORDING IN THE FIRST PERIOD ACROSS THE NORTH. MOS GUIDANCE KEEPS
WINDS AROUND 10KTS OVER WMC AND EKO. SO WILL PROBABLY AMEND NORTHERN
ZONES TO DROP BREEZY WORDING. OTHERWISE MORNING PACKAGE LOOKS RIGHT
ON.

.EKO...NVZ030>037 FLASH FLOOD WATCH TODAY.

CLAYCOMB

Hazardous weather outlook, Aug 22, 5:00 AM PDT, 8 hours 7 minutes before

NVZ030>037-231400-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ELKO NV
500 AM PDT FRI AUG 22 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST AND EAST CENTRAL
NEVADA

.DAY ONE...

MOISTURE COMBINED WITH STRONG WINDS IN THE UPPER LEVELS OF THE
ATMOSPHERE WILL CREATE FAVORABLE CONDITIONS FOR THUNDERSTORMS CAPABLE
OF PRODUCING HEAVY RAINS...STRONG WINDS...AND LARGE HAIL. A FLASH
FLOOD WATCH CONTINUES FOR NORTHEAST NEVADA TODAY. REFER TO AWIPS ID
RNOFFALKN...OR WMO HEADER WGUS65 KLKN FOR DETAILS.

.DAYS TWO THROUGH SEVEN...

MOISTURE WILL DEPART NORTHEAST NEVADA SATURDAY...WITH THE THREAT OF
SHOWERS AND THUNDERSTORMS DIMINISHING.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

ALLEN

In the hours before

Local storm report, Aug 22, 9:00 AM PDT, 4 hours 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ELKO, NV
900 AM PDT FRI AUG 22 2003

TIME(PDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1207 PM    8 W ELKO                  NV   FLASH FLOODS
08/21/03   ELKO                           FLASH FLOODING AND
                                          MUDSLIDE CLOSED PORTIONS OF
                                          INTERSTATE 80 NEAR HUNTER
                                          EXIT, MILE MARKER 293.

0208 PM    CARLIN                    NV   FLASH FLOODS
08/21/03   EUREKA

PE

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 21, 8:28 PM PDT	Flash Flood Warning	LKN	Elko, Eureka	4 hr
Aug 22, 12:49 PM PDT	Severe Thunderstorm Warning	LKN	Elko	26 min
Aug 22, 1:05 PM PDT	Severe Thunderstorm Warning	LKN	Humboldt	55 min
Aug 22, 2:01 PM PDT	Severe Thunderstorm Warning	LKN	Lander	44 min
Aug 22, 2:07 PM PDT	Severe Thunderstorm Warning	LKN	Humboldt	53 min
Aug 22, 2:44 PM PDT	Severe Thunderstorm Warning	LKN	Eureka	31 min
Aug 22, 3:02 PM PDT	Severe Thunderstorm Warning	LKN	Elko	58 min
Aug 22, 3:48 PM PDT	Severe Thunderstorm Warning	LKN	Elko	42 min
Aug 22, 4:11 PM PDT	Severe Thunderstorm Warning	LKN	Lander	34 min

Nearby

Severe Thunderstorm Warnings in Nevada, 2003 Every severe thunderstorm 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.