Alert archive / Nevada / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 22, NWS Elko, NV
NWS Elko, NV issued this severe thunderstorm warning at Jul 7, 2001, 7:20 PM PDT for Elko County, Nevada. It was in force for 25 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, 7:20 PM PDT (02:20 UTC)
- Expired
- Jul 7, 2001, 7:45 PM PDT
- In force
- 25 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), 200 km from the middle of the area, began a volume at 02:22 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, 2.3 hours before the alert went out and 74 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.
- 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
The text
As transmitted, in the capitals the NWS used until 2016.
736 WUUS55 KLKN 080220 SVREKO NVC007-080245- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ELKO NV 720 PM PDT SAT JUL 7 2001 THE NATIONAL WEATHER SERVICE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHEASTERN ELKO COUNTY IN NEVADA * UNTIL 745 PM PDT * AT 716 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER EXTREME SOUTHEASTERN ELKO COUNTY...OR ABOUT 14 MILES NORTHEAST OF LAGES JUNCTION...MOVING NORTH AT 10 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... RURAL SOUTHEASTERN ELKO COUNTY AT 730 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 4012 11451 4011 11423 4037 11412 4036 11454
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 Jul 7, 1:38 PM PDT, 5 hours 42 minutes earlier.
Area forecast discussion, Jul 7, 1:38 PM PDT, 5 hours 42 minutes before
NORTHERN GREAT BASIN FORECAST DISCUSSION NATIONAL WEATHER SERVICE ELKO NV 138 PM PDT SAT JUL 7 2001 SYNOPSIS...MONSOON MOISTURE WILL CONTINUE TO PUSH UP FROM THE SOUTH THROUGH THE WEEKEND. AS A RESULT...THE THREAT OF THUNDERSTORMS WILL PERSIST AND TEMPERATURES WILL REMAIN BELOW NORMAL FOR THE NEXT FEW DAYS. SHORT TERM...UNUSUALLY...RARE...MOIST 12Z SOUNDING FOR EKO. DEEP MOISTURE WITH PW VALUES OVER AN INCH. SHOWER ACTIVITY THIS MORNING WAS GENERALLY IN THE .25 INCH RANGE AT ANY GIVEN LOCATION. ENOUGH CLEARING SHOULD OCCUR THIS AFTERNOON TO ALLOW SURFACE HEATING... EXPECT SOME THUNDERSTORMS TO DEVELOP WITHIN A DRY SLOT PUSHING UP IN CENTRAL CWFA. VORT MAX CROSSING CENTRAL PART OF CWFA DURING THE DAY SHOULD PROVIDE ASSISTANCE. NEGATIVE LI'S SHOWING UP IN EAST CENTRAL THIS AFTERNOON AND THETA E RIDGING HOOKING BACK ACROSS THE NORTH SO COULD GET INTERESTING LATE THIS AFTERNOON. LONG TERM...RIDGING PATTERN CHANGES BY THURSDAY HINTING AT A DRYING TREND. UPPER LEVEL LOW OFF THE PACIFIC NORTHWEST COAST DIGS SOUTHWARD AS AN OPEN TROUGH...ALLOWING HIGH PRESSURE CENTERED NEAR NORTHERN TEXAS TO RETROGRADE BACK TO NEAR THE FOUR CORNERS REGION. THIS SETUP WILL IMPOSE A RETURN TO A DRIER SOUTHWEST FLOW OVER NEVADA AND AT LEAST A PAUSE IN THE MONSOON FLOW FOR THE SILVER STATE. THE MODELS ARE LESS GENEROUS WITH MOISTURE AFTER WEDNESDAY...BUT ENOUGH SURFACE MOISTURE EXISTS NOW THAT IT WILL NOT TAKE MUCH SU5RFACE HEATING TO PRODUCE AFTERNOON SHOWERS AND THUNDERSTORMS. WILL KEEP MENTION IN THROUGHOUT EXTENDED...HEDGING ON LOWER POPS FOR ZONE 30. .EKO...NONE. WHITWORTH
The office that day
Everything else NWS Elko, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 7:50 PM PDT | Flash Flood Warning | LKN | Elko | 55 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
Severe Thunderstorm Warnings in Nevada, 2001Every severe thunderstorm 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.