Alert archive / Nevada / Flash Flood Warnings in 2012
Flash Flood Warning 76, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Jul 31, 2012, 2:33 PM PDT for Clark County, Nye County, Nevada. It was in force for 117 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, 2012, 2:33 PM PDT (21:33 UTC)
- Expired
- Jul 31, 2012, 4:30 PM PDT
- In force
- 117 min
- Issued by
- NWS Las Vegas, NV
- Area
- Storm-based polygon
- Flood severity
- None
Counties Clark County, NV, Nye County, NV
The radar
The Las Vegas radar (KESX), 91 km from the middle of the area, began a volume at 21:35 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
Las Vegas, NV (KVEF), launched 12:00Z, 9.6 hours before the alert went out and 44 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
- 121 J/kg
- Mixed-layer CIN
- -75 J/kg
- Mixed-layer LCL
- 1334 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- -5 m²/s²
- 0-3 km storm-relative helicity
- -43 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
056 WGUS55 KVEF 312133 FFWVEF NVC003-023-312330- /O.NEW.KVEF.FF.W.0076.120731T2133Z-120731T2330Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE LAS VEGAS NV 233 PM PDT TUE JUL 31 2012 THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A * FLASH FLOOD WARNING FOR... EXTREME SOUTH CENTRAL NYE COUNTY IN SOUTH CENTRAL NEVADA... EXTREME WEST CENTRAL CLARK COUNTY IN SOUTHERN NEVADA... * UNTIL 430 PM PDT. * AT 226 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN FROM A THUNDERSTORM OVER EXTREME WEST CENTRAL CLARK COUNTY...OR 10 MILES SOUTHEAST OF PAHRUMP...MOVING SOUTHWEST AT 5 MPH. * LOCATIONS IMPACTED INCLUDE... STATE ROUTE 160 BETWEEN MILE MARKERS 37 AND 45 AND THE TECOPA TURNOFF ON THE OLD SPANISH TRAIL HIGHWAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... FLASH FLOODING IS EXPECTED IN WASHES...LOW WATER CROSSINGS AND ON AREA ROADWAYS. FLASH FLOODING IS NATURES NUMBER ONE KILLER. TO ESCAPE RISING WATER...MOVE TO HIGHER GROUND. NEVER TRY TO CROSS A FLOODED ROADWAY OR WALK THROUGH FLOODWATERS. TURN AROUND...DONT DROWN! REPORT FLOODING BY POSTING YOUR REPORT TO THE LAS VEGAS NATIONAL WEATHER SERVICE FACEBOOK PAGE...OR BY USING THE TWITTER HASHTAG... NWSVEGAS. && LAT...LON 3593 11580 3608 11599 3621 11582 3610 11564 $$ JA
2 follow-up statements
367 WGUS75 KVEF 312236 FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 336 PM PDT TUE JUL 31 2012 NVC003-023-312330- /O.CON.KVEF.FF.W.0076.000000T0000Z-120731T2330Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ CLARK NV-NYE NV- 336 PM PDT TUE JUL 31 2012 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 430 PM PDT FOR EXTREME SOUTH CENTRAL NYE AND EXTREME WEST CENTRAL CLARK COUNTIES... AT 330 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED HEAVY RAIN WAS DISSIPATING FROM THE THUNDERSTORM THAT WAS 15 MILES SOUTHEAST OF PAHRUMP. HOWEVER...UP TO AN INCH OF RAINFALL WAS ESTIMATED TO HAVE FALLEN FROM THIS STORM. THIS WILL LIKLEY PRODUCE FLASH FLOODING UNTIL 430 PM ALONG STATE ROUTE 160 BETWEEN MILE MARKERS 38 AND 45 AND ALSO THE TECOPA TURNOFF AND SECTIONS OF THE OLD SPANISH TRAIL HIGHWAY TOWARD CHARLESTON VIEW. PRECAUTIONARY/PREPAREDNESS ACTIONS... FLASH FLOODING IS EXPECTED IN WASHES...LOW WATER CROSSINGS AND ON AREA ROADWAYS. FLASH FLOODING IS NATURES NUMBER ONE KILLER. TO ESCAPE RISING WATER...MOVE TO HIGHER GROUND. NEVER TRY TO CROSS A FLOODED ROADWAY OR WALK THROUGH FLOODWATERS. TURN AROUND...DONT DROWN! REPORT FLOODING BY POSTING YOUR REPORT TO THE LAS VEGAS NATIONAL WEATHER SERVICE FACEBOOK PAGE...OR BY USING THE TWITTER HASHTAG... NWSVEGAS. && LAT...LON 3617 11584 3610 11573 3596 11584 3605 11596 $$ JA
876 WGUS75 KVEF 312326 FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 426 PM PDT TUE JUL 31 2012 NVC003-023-312332- /O.EXP.KVEF.FF.W.0076.000000T0000Z-120731T2330Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ CLARK NV-NYE NV- 426 PM PDT TUE JUL 31 2012 ...THE FLASH FLOOD WARNING WILL EXPIRE AT 430 PM PDT FOR EXTREME SOUTH CENTRAL NYE AND EXTREME WEST CENTRAL CLARK COUNTIES... NO HEAVY RAIN HAS OCCURRED SOUTHEAST OF PAHRUMP NEAR THE TECOPA CUTOFF SINCE 3 PM AND RUNOFF HAS LIKELY RECEDED. THE FLASH FLOODING WARNING WILL BE ALLOWED TO EXPIRE ON SCHEDULE. LAT...LON 3617 11584 3610 11573 3596 11584 3605 11596 $$ JA
The office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 31, 2:29 AM PDT | Flash Flood Watch | VEF | Clark | 19 hr |
| Jul 31, 6:39 AM PDT | Areal Flood Advisory | VEF | Clark | 51 min |
| Jul 31, 2:42 PM PDT | Flash Flood Warning | VEF | Clark | 3 hr |
| Jul 31, 4:37 PM PDT | Flash Flood Warning | VEF | Clark | 113 min |
Nearby
Flash Flood Warnings in Nevada, 2012Every flash flood warning in 2012
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.