Alert archive / Nevada / Flash Flood Warnings in 2014
Flash Flood Warning 80, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Aug 4, 2014, 1:47 PM PDT for Clark County, Nevada. It was in force for 118 min. 3 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 4, 2014, 1:47 PM PDT (20:47 UTC)
- Expired
- Aug 4, 2014, 3:45 PM PDT
- In force
- 118 min
- Issued by
- NWS Las Vegas, NV
- Area
- Storm-based polygon
- Flood severity
- None
County Clark County, NV
The radar
The Las Vegas radar (KESX), 56 km from the middle of the area, began a volume at 20:47 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 4, 2:30 PM PDT | HEAVY RAIN 1.26 | 4 Wsw Las Vegas Strip, NV | A CLARK COUNTY REGIONAL FLOOD CONTROL DISTRICT GAUGE MEASURED 1.26 INCHES OF RAIN NEAR TROPICANA AND TORREY PINES WITH 0.75 INCH FALLING IN 15 MINUTES. |
| Aug 4, 3:30 PM PDT | FLASH FLOOD | 5 Wsw Las Vegas Strip, NV | SOCIAL MEDIA VIDEO SHOWED WATER EST. 5 INCHES DEEP FLOWING OVER ROAD AT TROPICANA AND RAINBOW BLVD INTERSECTION. FLOOD CONTROL WASHES FULL IN THE AREA. |
| Aug 4, 3:45 PM PDT | FLASH FLOOD | 5 Wsw Las Vegas Strip, NV | SOCIAL MEDIA REPORT OF WATER OVER ROAD AND A STALLED CAR AT RAINBOW BLVD AND HACIENDA ROAD. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Las Vegas, NV (KVEF), launched 12:00Z, 8.8 hours before the alert went out and 39 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
- 6 J/kg
- Mixed-layer CIN
- -61 J/kg
- Mixed-layer LCL
- 932 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 16 m²/s²
- 0-3 km storm-relative helicity
- 25 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
141 WGUS55 KVEF 042047 FFWVEF NVC003-042245- /O.NEW.KVEF.FF.W.0080.140804T2047Z-140804T2245Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE LAS VEGAS NV 147 PM PDT MON AUG 4 2014 THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A * FLASH FLOOD WARNING FOR... CENTRAL CLARK COUNTY IN SOUTHERN NEVADA... * UNTIL 345 PM PDT * AT 137 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN FROM A THUNDERSTORM NEAR WET N WILD...OR 8 MILES SOUTHEAST OF RED ROCK CANYON. THE STORM PRODUCING VERY HEAVY RAIN WAS NEARLY STATIONARY. * LOCATIONS IMPACTED INCLUDE... SPRING VALLEY...WET N WILD...RHODES RANCH...MOUNTAINS EDGE. PRECAUTIONARY/PREPAREDNESS ACTIONS... FLASH FLOODING IS EXPECTED ON ROADS...IN NORMALLY DRY WASHES AND LOW LYING AREAS. NEVER TRY TO CROSS A FLOODED ROAD OR ENTER A FLOOD CHANNEL. TURN AROUND...DONT DROWN! REPORT FLOODING TO THE LAS VEGAS NATIONAL WEATHER SERVICE VIA FACEBOOK OR TWITTER. && LAT...LON 3613 11537 3611 11522 3600 11521 3600 11540 $$ ASG
2 follow-up statements
824 WGUS75 KVEF 042136 FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 236 PM PDT MON AUG 4 2014 NVC003-042245- /O.CON.KVEF.FF.W.0080.000000T0000Z-140804T2245Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ CLARK NV- 236 PM PDT MON AUG 4 2014 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 345 PM PDT FOR CENTRAL CLARK COUNTY... AT 227 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A THUNDERSTORM PRODUCING FLASH FLOODING OVER THE SOUTHWEST PORTION OF THE LAS VEGAS VALLEY. RAINFALL AMOUNTS HAVE BEEN DECREASING AS THE STORM MOVES TO THE NORTHEAST...BUT AREA GAGES ARE SHOWING BETWEEN A HALF AN INCH TO AN INCH OF RAIN IN THE PAST HOUR. LOCATIONS IMPACTED INCLUDE... SPRING VALLEY...WET AND WILD...MOUNTAINS EDGE...SOUTH SUMMERLIN. PRECAUTIONARY/PREPAREDNESS ACTIONS... FLASH FLOODING IS EXPECTED ON ROADS...IN NORMALLY DRY WASHES AND LOW LYING AREAS. NEVER TRY TO CROSS A FLOODED ROAD OR ENTER A FLOOD CHANNEL. TURN AROUND...DONT DROWN! REPORT FLOODING TO THE LAS VEGAS NATIONAL WEATHER SERVICE VIA FACEBOOK OR TWITTER. && LAT...LON 3613 11537 3611 11522 3600 11521 3600 11540 $$ ASG
720 WGUS75 KVEF 042239 FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 339 PM PDT MON AUG 4 2014 NVC003-042247- /O.EXP.KVEF.FF.W.0080.000000T0000Z-140804T2245Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ CLARK NV- 339 PM PDT MON AUG 4 2014 ...THE FLASH FLOOD WARNING WILL EXPIRE AT 345 PM PDT FOR CENTRAL CLARK COUNTY... HEAVY RAIN HAS ENDED ACROSS THE SOUTH PART OF THE LAS VEGAS VALLEY. HOWEVER RUNOFF FROM EARLY HEAVY RAIN WILL CONTINUE...BUT THE THREAT OF ADDITIONAL HEAVY RAIN AND FLASH FLOODING HAS ENDED. LAT...LON 3613 11537 3611 11522 3600 11521 3600 11540 $$ ASG
The office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 3, 5:32 PM PDT | Areal Flood Advisory | VEF | Clark | 3 hr |
| Aug 3, 6:08 PM PDT | Flash Flood Warning | VEF | Clark | 3 hr |
| Aug 3, 7:24 PM PDT | Flash Flood Warning | VEF | Clark | 3 hr |
| Aug 3, 8:02 PM PDT | Flash Flood Warning | VEF | Clark | 3 hr |
| Aug 3, 9:05 PM PDT | Flash Flood Warning | VEF | Clark | 3 hr |
| Aug 3, 9:51 PM PDT | Flash Flood Warning | VEF | Clark | 3 hr |
| Aug 3, 11:06 PM PDT | Areal Flood Advisory | VEF | Clark | 3 hr |
| Aug 3, 11:17 PM PDT | Areal Flood Advisory | VEF | Clark | 3 hr |
| Aug 3, 11:31 PM PDT | Flash Flood Warning | VEF | Clark | 3 hr |
| Aug 3, 11:35 PM PDT | Flash Flood Warning | VEF | Clark, Lincoln | 3 hr |
| Aug 3, 11:45 PM PDT | Areal Flood Advisory | VEF | Nye | 3 hr |
| Aug 3, 11:58 PM PDT | Flash Flood Warning | VEF | Clark | 3 hr |
| Aug 4, 2:44 AM PDT | Areal Flood Advisory | VEF | Nye | 2 hr |
| Aug 4, 3:25 AM PDT | Flash Flood Warning | VEF | Clark | 3 hr |
| Aug 4, 4:58 AM PDT | Areal Flood Advisory | VEF | Clark | 3 hr |
| Aug 4, 12:06 PM PDT | Flash Flood Warning | VEF | Clark | 3 hr |
| Aug 4, 1:13 PM PDT | Areal Flood Advisory | VEF | Nye | 3 hr |
| Aug 4, 1:21 PM PDT | Areal Flood Advisory | VEF | Clark | 114 min |
| Aug 4, 2:16 PM PDT | Flash Flood Warning | VEF | Clark | 3 hr |
| Aug 4, 2:21 PM PDT | Flash Flood Warning | VEF | Nye | 114 min |
| Aug 4, 2:21 PM PDT | Flash Flood Warning | VEF | Clark | 3 hr |
| Aug 4, 2:28 PM PDT | Flash Flood Warning | VEF | Clark | 3 hr |
| Aug 4, 2:57 PM PDT | Areal Flood Advisory | VEF | Clark, Lincoln | 5 hr |
| Aug 4, 3:45 PM PDT | Flash Flood Warning | VEF | Esmeralda, Nye | 3 hr |
| Aug 4, 3:56 PM PDT | Flash Flood Warning | VEF | Lincoln | 3 hr |
| Aug 4, 4:16 PM PDT | Areal Flood Advisory | VEF | Clark, Nye | 3 hr |
Nearby
Flash Flood Warnings in Nevada, 2014Every flash flood warning in 2014
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.