Alert archive / Nevada / Flash Flood Warnings in 2018
Flash Flood Warning 86, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Jul 29, 2018, 3:02 PM PDT for Clark 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 29, 2018, 3:02 PM PDT (22:02 UTC)
- Expired
- Jul 29, 2018, 6:00 PM PDT
- In force
- 3 hr
- Issued by
- NWS Las Vegas, NV
- Area
- Storm-based polygon
- Flood severity
- None
County Clark County, NV
The radar
The Las Vegas radar (KESX), 40 km from the middle of the area, began a volume at 22:04 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, 10.0 hours before the alert went out and 65 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
- 835 J/kg
- Mixed-layer CIN
- -233 J/kg
- Mixed-layer LCL
- 2562 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 22 m²/s²
- 0-3 km storm-relative helicity
- 77 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
845 WGUS55 KVEF 292202 FFWVEF NVC003-300100- /O.NEW.KVEF.FF.W.0086.180729T2202Z-180730T0100Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Las Vegas NV 302 PM PDT SUN JUL 29 2018 The National Weather Service in Las Vegas has issued a * Flash Flood Warning for... Southwestern Clark County in southern Nevada... * Until 600 PM PDT. * At 301 PM PDT, Doppler radar and automated rain gauges indicated thunderstorms producing heavy rain across the warned area. Up to one inch of rain has already fallen. Flash flooding is expected to begin shortly. * Some locations that will experience flooding include... Jean and Goodsprings. Additional rainfall amounts of an inch are possible in the warned area. This includes Interstate 15 in Nevada between mile markers 10 and 19. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. && LAT...LON 3585 11522 3573 11530 3577 11545 3588 11539 $$ AB
1 follow-up statement
991 WGUS75 KVEF 300051 FFSVEF Flash Flood Statement National Weather Service Las Vegas NV 551 PM PDT SUN JUL 29 2018 NVC003-300100- /O.EXP.KVEF.FF.W.0086.000000T0000Z-180730T0100Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Clark NV- 551 PM PDT SUN JUL 29 2018 ...THE FLASH FLOOD WARNING FOR SOUTHWESTERN CLARK COUNTY WILL EXPIRE AT 600 PM PDT... Any flooding that occurred should have receded. Flooding is no longer expected to pose a threat. Please continue to heed any remaining road closures. LAT...LON 3585 11522 3573 11530 3577 11545 3588 11539 $$ SC
The office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 29, 2:39 PM PDT | Areal Flood Advisory | VEF | Clark | 2 hr |
| Jul 29, 2:51 PM PDT | Areal Flood Advisory | VEF | Clark | 39 min |
| Jul 29, 2:55 PM PDT | Severe Thunderstorm Warning | VEF | Clark | 50 min |
| Jul 29, 3:28 PM PDT | Flash Flood Warning | VEF | Clark | 3 hr |
Nearby
Flash Flood Warnings in Nevada, 2018Every flash flood warning in 2018
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.