Alert archive / Nevada / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 17, NWS Elko, NV
NWS Elko, NV issued this severe thunderstorm warning at Jul 24, 2002, 3:06 PM PDT for Elko County, Nevada. It was in force for 24 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
- Jul 24, 2002, 3:06 PM PDT (22:06 UTC)
- Expired
- Jul 24, 2002, 3:30 PM PDT
- In force
- 24 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, 10.1 hours before the alert went out and 154 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 3869 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 34 m²/s²
- 0-3 km storm-relative helicity
- 102 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
071 WUUS55 KLKN 242206 SVRLKN NVC007-242230- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ELKO NV 305 PM PDT WED JUL 24 2002 THE NATIONAL WEATHER SERVICE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTH CENTRAL ELKO COUNTY IN NEVADA THIS INCLUDES THE CITY OF JIGGS * UNTIL 330 PM PDT * AT 304 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 18 MILES SOUTHWEST OF JIGGS...OR ABOUT 15 MILES SOUTHEAST OF PINE VALLEY...MOVING NORTHEAST AT 20 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... 8 MILES SOUTHWEST OF JIGGS AT 330 PM PDT DIME SIZED HAIL AND WIND GUSTS TO 60 MPH ARE POSSIBLE WITH THESE STORMS. REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE. LAT...LON 4032 11604 4014 11598 4037 11557 4053 11578
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 24, 2:30 PM PDT, 36 minutes earlier.
Area forecast discussion, Jul 24, 2:30 PM PDT, 36 minutes before
NORTHERN GREAT BASIN FORECAST DISCUSSION NATIONAL WEATHER SERVICE ELKO NV 230 PM PDT WED JUL 24 2002 .SYNOPSIS...AN APPROACHING LOW PRESSURE SYSTEM WILL BRING A THREAT OF THUNDERSTORMS TO EASTERN NEVADA THROUGH FRIDAY. THE PASSAGE OF THIS SYSTEM WILL RESULT IN SLIGHTLY BELOW NORMAL TEMPERATURES AND CLEAR SKIES LATE THIS WEEKEND AND INTO EARLY NEXT WEEK. .SHORT TERM...MAIN FORECAST PROBLEM IN THE SHORT TERM WILL BE POPS AND TEMPERATURES IN RESPONSE TO APPROACHING 5H TROUGH CURRENTLY OFF THE CA COAST. FOUR CORNERS HIGH WILL DRAW UP SOME MID-LEVEL MOISTURE WHICH LOOKS TO STAY MAINLY IN EASTERN NV FOR ISOLD THUNDERSTORMS. FOR TONIGHT...MOST ACTION WILL BE FOUND IN WHITE PINE/SOUTHERN LANDER/SOUTHERN EUREKA COUNTIES WHERE THETA-E RIDGE AND NEGATIVE LIS ARE PRESENT. WILL GO WITH SCT POPS. MODELS INDICATE INSTABILITY FOR ELKO COUNTY AND WILL USE ISOLD POPS THERE. NE CORNER HAS HAS RRJ SUPPORT THIS EVENING. WITHOUT ANY STRONG DYNAMICS TO KEEP CONVECTION GOING...SHOULD BE DIURNAL IN NATURE AND DIE OFF AFTER SUNSET. FOR THURSDAY AND THURSDAY NIGHT...SHEARED-OUT TROUGH SITS ACROSS N CA AND NW NV. 60KT JET MAX NOSES INTO CA AND CENTRAL NV. AVN DRIES OUT ATMOS QUICKLY...BUT BELIEVE RESIDUAL MOISTURE WILL STILL ALLOW CONVECTION TO FIRE WITH JET SUPPORT...MAINLY IN THE SOUTH. WITHOUT ANY FAVORED REGION OF JET IN PLACE...AGAIN EXPECT ANY CONVECTION TO BE DIURNAL IN NATURE AND END AFTER SUNSET. FOR FRIDAY...SHEARED-OUT TROUGH SLOW TO MOVE OUT...BUT VERY DRY AIR BEHIND IT. WILL LEAVE IN ISOLD POPS IN THE FAR EAST AS TROUGH HASNT FULLY MOVED OUT. PLEASANTLY COOLER AIR ASSOCIATED WITH TROUGH WILL BRING TEMPERATURES SLOWLY DOWN TO SLIGHTLY BELOW NORMAL VALUES...IN THE 80S. .LONG TERM...AVN STILL HOLDS TROUGH BACK ACROSS EXTREME EASTERN PART OF CWA. LIS ALSO AT OR BELOW ZERO...SO WILL ADD IN A SLIGHT CHANCE TO CONTINUE IN THE EAST. FOR SUNDAY...MEDIUM RANGE MODELS BEGIN TO DIVERGE ON SOLUTIONS. EXTENDED AVN AND ECMWF SHOW MORE ZONAL FLOW WITH 5H TROUGH DROPPING DOWN FROM CANADA. HOWEVER...UKMET AND CANADIAN SHOW A MORE AMPLIFIED RIDGE OVER WEST WITH 5H LOW DROPPING DOWN BEHIND IT. IF THIS SCENARIO OCCURS...TROUGH WILL NOT HAVE MUCH INFLUENCE AND WILL ONLY BREAK DOWN AMPLIFIED RIDGE IN PACIFIC. OTHER FACTOR WHICH BOTH MODELS ARE PICKING UP ON IS REMNANTS OF HURRICANE. MODELS WANT TO MOVE THIS FEATURE UP BETWEEN HIGH IN CENTRAL US AND HIGH IN PACIFIC. WILL CONTINUE WITH DRY FORECAST DUE TO LOW CONFIDENCE IN SOLUTIONS AND BRIEF NEXT SHIFT THAT CHANGE MAY NEED TO BE MADE. STROOZAS .EKO...NONE.
The office that day
Everything else NWS Elko, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 24, 4:20 PM PDT | Flash Flood Warning | LKN | Eureka | 100 min |
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.