Alert archive / Nevada / Flash Flood Warnings in 2009
Flash Flood Warning 21, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Jul 25, 2009, 5:37 PM PDT for Lincoln County, Nevada. It was in force for 113 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 25, 2009, 5:37 PM PDT (00:37 UTC)
- Expired
- Jul 25, 2009, 7:30 PM PDT
- In force
- 113 min
- Issued by
- NWS Las Vegas, NV
- Area
- Storm-based polygon
- Flood severity
- None
County Lincoln County, NV
The radar
The Cedar City radar (KICX), 148 km from the middle of the area, began a volume at 00:37 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
Flgstf/Belemont, AZ (KFGZ), launched 00:00Z, 0.6 hours before the alert went out and 338 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
- 194 J/kg
- Mixed-layer CIN
- -51 J/kg
- Mixed-layer LCL
- 1803 m above ground
- 0-6 km bulk shear
- 4 kt
- 0-1 km storm-relative helicity
- -8 m²/s²
- 0-3 km storm-relative helicity
- 29 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS55 KVEF 260037 FFWVEF NVC017-260230- /O.NEW.KVEF.FF.W.0021.090726T0037Z-090726T0230Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE LAS VEGAS NV 537 PM PDT SAT JUL 25 2009 THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A * FLASH FLOOD WARNING FOR... CENTRAL LINCOLN COUNTY IN SOUTH CENTRAL NEVADA... * UNTIL 730 PM PDT * AT 535 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN FROM A THUNDERSTORM OVER ELGIN. THIS STORM COULD CAUSE FLOODING OF HIGHWAY 317...AS WELL AS HIGH FLOWS IN THE MEADOW VALLEY WASH. PRECAUTIONARY/PREPAREDNESS ACTIONS... IN DESERT TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS FLOODED ROADS. TURN AROUND...DONT DROWN. FIND ALTERNATE ROUTES. TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN LAS VEGAS. && LAT...LON 3742 11460 3742 11437 3724 11437 3724 11460 $$ MORGAN
2 follow-up statements
282 WGUS75 KVEF 260122 FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 622 PM PDT SAT JUL 25 2009 NVC017-260230- /O.CON.KVEF.FF.W.0021.000000T0000Z-090726T0230Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ LINCOLN NV- 622 PM PDT SAT JUL 25 2009 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 730 PM PDT FOR CENTRAL LINCOLN COUNTY... AT 617 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A THUNDERSTORM PRODUCING VERY HEAVY RAIN OVER ELGIN. RADAR ESTIMATED NEARLY THREE INCHES OF RAIN HAD ALREADY FALLEN...AND AN ADDITIONAL ONE TO TWO INCHES WILL BE LIKELY. ANYONE IN THE ELGIN AREA AND ANYONE HIKING OR CAMPING IN THE MEADOW VALLEY WASH BETWEEN ELGIN AND CARP SHOULD HEAD FOR HIGHER GROUND IMMEDIATELY. LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO ELGIN PRECAUTIONARY/PREPAREDNESS ACTIONS... TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN LAS VEGAS. && LAT...LON 3742 11460 3742 11437 3724 11437 3724 11460 $$ MORGAN
639 WGUS75 KVEF 260222 FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 722 PM PDT SAT JUL 25 2009 NVC017-260231- /O.EXP.KVEF.FF.W.0021.000000T0000Z-090726T0230Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ LINCOLN NV- 722 PM PDT SAT JUL 25 2009 ...THE FLASH FLOOD WARNING WILL EXPIRE AT 730 PM PDT FOR CENTRAL LINCOLN COUNTY... AT 721 PM PDT...RADAR SHOWED THAT THUNDERSTORMS HAD MOVED AWAY FROM ELGIN. THUS...THE FLASH FLOOD WARNING WILL BE ALLOWED TO EXPIRE AT 730 PM. ANYONE IN THE MEADOW VALLEY WASH BETWEEN ELGIN AND CARP SHOULD REMAIN ON HIGH GROUND AS SIGNIFICANT FLOWS IN THE WASH ARE LIKELY. LAT...LON 3742 11460 3742 11437 3724 11437 3724 11460 $$ MORGAN
The office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 26, 2:31 PM PDT | Areal Flood Advisory | VEF | Clark, Nye | 70 min |
| Jul 26, 3:06 PM PDT | Areal Flood Advisory | VEF | Clark, Nye | 54 min |
Nearby
Flash Flood Warnings in Nevada, 2009Every flash flood warning in 2009
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.