Alert archive / Nevada / Flash Flood Warnings in 2003
Flash Flood Warning 6, NWS Elko, NV
NWS Elko, NV issued this flash flood warning at Jul 31, 2003, 6:30 PM PDT for Eureka County, Nevada. It was in force for 90 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 31, 2003, 6:30 PM PDT (01:30 UTC)
- Expired
- Jul 31, 2003, 8:00 PM PDT
- In force
- 90 min
- Issued by
- NWS Elko, NV
- Area
- Counties, with a storm outline in the text
County Eureka County, NV
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood 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
Reno, NV (KREV), launched 00:00Z, 1.5 hours before the alert went out and 184 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
- 196 J/kg
- Mixed-layer CIN
- -152 J/kg
- Mixed-layer LCL
- 2429 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 237 m²/s²
- 0-3 km storm-relative helicity
- 347 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS55 KLKN 010132 FFWLKN NVC011-010300- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE ELKO NV 630 PM PDT THU JUL 31 2003 THE NATIONAL WEATHER SERVICE HAS ISSUED A * FLASH FLOOD WARNING FOR... SOUTHEASTERN EUREKA COUNTY IN NEVADA THIS INCLUDES THE CITIES OF...EUREKA AIRPORT...EUREKA * UNTIL 800 PM PDT * AT 624 PM PDT...THE EUREKA SHERIFFS OFFICS REPORTED VERY HEAVY RAIN OVER EUREKA WITH VISIBILITIES REDUCED TO 100 FEET. THE AREA OF HEAVY RAIN WAS NEARLY STATIONARY. * THE THUNDERSTORM WITH EXCESSIVE RAINFALL WILL REMAIN OVER...EUREKA AND DEVILS GATE THROUGH 800 PM PDT EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF CREEKS AND STREAMS...ROADS AND ROADSIDE CULVERTS. THE HEAVY RAINS COULD ALSO TRIGGER ROCK AND MUDSLIDES IN STEEP TERRAIN. DO NOT ATTEMPT TO CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY AUTOMOBILE. IF YOUR VEHICLE STALLS, ABANDON IT IMMEDIATELY AND SEEK HIGHER GROUND. TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE. LAT...LON 3964 11615 3947 11619 3940 11592 3961 11583 $$ JHW
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 Jul 31, 2:00 PM PDT, 4 hours 30 minutes earlier.
Area forecast discussion, Jul 31, 2:00 PM PDT, 4 hours 30 minutes before
NORTHERN GREAT BASIN FORECAST DISCUSSION 200 PM PDT THU JUL 31 2003 .SYNOPSIS...THE COMBINATION OF A LOW PRESSURE SYSTEM ALONG THE PACIFIC COAST AND HIGH PRESSURE OVER THE FOUR CORNERS AREA WILL ALLOW MOISTURE TO SPREAD ACROSS EAST CENTRAL AND NORTHEAST NEVADA THROUGH THIS WEEKEND. EARLY NEXT WEEK INCREASING SOUTHWEST FLOW ALOFT WILL BRING DRIER CONDITIONS TO NORTHEAST AND EAST CENTRAL NEVADA. .SHORT TERM...THUNDERSTORM ACTIVITY INCREASING THIS AFTERNOON WITH GOES PW OF 1.4 INCHES OVER SRN NV AND .95 INCHES OVER EAST CENTRAL NV. WOULD LIKE TO SEE WIDESPREAD ACTIVITY TO INCREASE CONFIDENCE IN CURRENT WATCH. BUT THERE REMAINS PLENTY OF TIME TO DEVELOP...SO WILL CONTINUE FLASH FLOOD WATCH. FRI SHOULD SEE CONVECTION SPREAD FURTHER NORTH AS RIDGE AXIS SHIFTS E AND SLY FLOW ALLOWS S/WV TROF TO MIGRATE ACROSS CWA. PAC TROF MOVES INLAND ON SAT WITH MAIN INSTABILITY AREA SHIFTING OVER NE NV. ADDED SUPPORT FROM RRQ OF SLY JET WILL HELP MAINTAIN CONVECTION THRU SAT EVE. .EXTENDED...ON SUN AVN INDICATES AMS DRIES AND BECOMES LESS UNSTABLE...ALTHO AVN LI STILL NEAR ZERO OVER CWA. GENERAL DRYING TREND INDICATED OVER REMAINDER OF WEEK IN SW FLOW ALOFT. AM CONCERNED ABOUT ERN PAC TROF ATTEMPTING TO ROTATE INLAND ON THU. UNTIL WE HAVE BETTER HANDLE ON THIS SYS WILL KEEP DRY FCST FOR WED AND THU. .EKO...NVZ035-037 FLASH FLOOD WATCH CONTINUES THROUGH 1030 PM PDT. EYSSAUTIER
Hazardous weather outlook, Jul 31, 1:30 PM PDT, 5 hours before
NVZ030>037-011400- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE ELKO NV 130 PM PDT THU JUL 31 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST AND EAST CENTRAL NEVADA .DAY ONE... FLASH FLOOD WATCH IN EFFECT FORECAST CENTRAL NEVADA THIS AFTERNOON AND EVENING. THE AFFECTED COUNTIES ARE WHITE PINE... SOUTHERN LANDER AND SOUTHERN EUREKA. SHOWERS AND THUNDERSTORMS WILL DEVELOP OVER EAST CENTRAL NEVADA THIS AFTERNOON WITH HEAVY RAIN SHOWERS POSSIBLE LATE THIS AFTERNOON AND EVENING. SEE WGUS65 KLKN RNOFFALKN FOR DETAILS. .DAYS TWO THROUGH SEVEN... SCATTERED AFTERNOON AND EVENING THUNDERSTORMS WILL CONTINUE ACROSS NORTHERN AND EAST CENTRAL NEVADA FRIDAY AND SATURDAY...DIMINISHING EARLY NEXT WEEK. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. EYSSAUTIER
The office that day
Everything else NWS Elko, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 31, 5:31 PM PDT | Flash Flood Warning | LKN | White Pine | 89 min |
| Jul 31, 7:02 PM PDT | Flash Flood Warning | LKN | White Pine | 88 min |
| Jul 31, 8:00 PM PDT | Flash Flood Warning | LKN | Eureka, White Pine | 3 hr |
Nearby
Flash Flood Warnings in Nevada, 2003Every flash flood 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.