Alert archive / Nevada / Flash Flood Warnings in 2016
Flash Flood Warning 42, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Jul 31, 2016, 5:52 PM PDT for Clark County, Lincoln County, Nevada. It was in force for 3 hr. 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, 2016, 5:52 PM PDT (00:52 UTC)
- Expired
- Jul 31, 2016, 8:45 PM PDT
- In force
- 3 hr
- Issued by
- NWS Las Vegas, NV
- Area
- Storm-based polygon
- Flood severity
- None
Counties Clark County, NV, Lincoln County, NV
The radar
The Las Vegas radar (KESX), 119 km from the middle of the area, began a volume at 00:54 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 00:00Z, 0.9 hours before the alert went out and 66 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
- 572 J/kg
- Mixed-layer CIN
- -79 J/kg
- Mixed-layer LCL
- 2999 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 104 m²/s²
- 0-3 km storm-relative helicity
- 150 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
195 WGUS55 KVEF 010052 FFWVEF NVC003-017-010345- /O.NEW.KVEF.FF.W.0042.160801T0052Z-160801T0345Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE LAS VEGAS NV 552 PM PDT SUN JUL 31 2016 THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A * FLASH FLOOD WARNING FOR... NORTH CENTRAL CLARK COUNTY IN SOUTHERN NEVADA... SOUTH CENTRAL LINCOLN COUNTY IN SOUTH CENTRAL NEVADA... * UNTIL 845 PM PDT * AT 550 PM PDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING HEAVY RAIN ACROSS THE WARNED AREA. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY. * SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... MORMON WELL ROAD...COYOTE SPRINGS AND HAYFORD PK. LAT...LON 3694 11484 3651 11481 3650 11524 3695 11522 $$ JS
2 follow-up statements
422 WGUS75 KVEF 010217 FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 717 PM PDT SUN JUL 31 2016 NVC003-017-010345- /O.CON.KVEF.FF.W.0042.000000T0000Z-160801T0345Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ CLARK NV-LINCOLN NV- 717 PM PDT SUN JUL 31 2016 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 845 PM PDT FOR NORTH CENTRAL CLARK AND SOUTH CENTRAL LINCOLN COUNTIES... AT 716 PM PDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING HEAVY RAIN ACROSS THE WARNED AREA. ADDITIONAL THUNDERSTORMS ARE MOVING INTO THE REGION WHICH WILL ADD TO THE RUNOFF THAT HAS ALREADY TAKEN PLACE. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... SR 168 MILE MARKER 21...COYOTE SPRINGS AND HAYFORD PK. PRECAUTIONARY/PREPAREDNESS ACTIONS... TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD DEATHS OCCUR IN VEHICLES. && LAT...LON 3694 11484 3651 11481 3650 11524 3695 11522 $$ ASG
552 WGUS75 KVEF 010342 FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 842 PM PDT SUN JUL 31 2016 NVC003-017-010350- /O.EXP.KVEF.FF.W.0042.000000T0000Z-160801T0345Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ CLARK NV-LINCOLN NV- 842 PM PDT SUN JUL 31 2016 ...THE FLASH FLOOD WARNING FOR NORTH CENTRAL CLARK AND SOUTH CENTRAL LINCOLN COUNTIES WILL EXPIRE AT 845 PM PDT... THE HEAVY RAIN HAS ENDED. HOWEVER, RUNOFF FROM EARLIER HEAVY RAIN MAY STILL CAUSE SOME MINOR PONDING ON AREA ROADS INCLUDING HIGHWAY 93. PLEASE CONTINUE TO HEED ANY ROAD CLOSURES, IF THEY EXIST. LAT...LON 3694 11484 3651 11481 3650 11524 3695 11522 $$ ASG
The office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 31, 5:19 PM PDT | Severe Thunderstorm Warning | VEF | Lincoln | 41 min |
| Jul 31, 6:37 PM PDT | Flash Flood Warning | VEF | Lincoln | 3 hr |
| Jul 31, 7:28 PM PDT | Flash Flood Warning | VEF | Lincoln | 3 hr |
| Aug 1, 2:33 AM PDT | Flash Flood Watch | VEF | Clark, Lincoln | 26 hr |
| Aug 1, 2:47 PM PDT | Flash Flood Warning | VEF | Clark | 3 hr |
| Aug 1, 4:43 PM PDT | Severe Thunderstorm Warning | VEF | Lincoln | 47 min |
Nearby
Flash Flood Warnings in Nevada, 2016Every flash flood warning in 2016
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.