Alert archive / Nevada / Flash Flood Warnings in 2018
Flash Flood Warning 95, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Aug 2, 2018, 2:32 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
- Aug 2, 2018, 2:32 PM PDT (21:32 UTC)
- Expired
- Aug 2, 2018, 5:30 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), 35 km from the middle of the area, began a volume at 21:36 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, 9.5 hours before the alert went out and 77 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
- 54 J/kg
- Mixed-layer CIN
- -173 J/kg
- Mixed-layer LCL
- 3279 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- -53 m²/s²
- 0-3 km storm-relative helicity
- -58 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
196
WGUS55 KVEF 022132
FFWVEF
NVC003-030030-
/O.NEW.KVEF.FF.W.0095.180802T2132Z-180803T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Las Vegas NV
232 PM PDT THU AUG 2 2018
The National Weather Service in Las Vegas has issued a
* Flash Flood Warning for...
West central Clark County in southern Nevada...
* Until 530 PM PDT.
* At 232 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...
Jean, Nipton Road Mile Marker 3 and Goodsprings.
This includes Interstate 15 in Nevada between mile markers 2 and 18.
LAT...LON 3580 11520 3550 11512 3545 11518 3569 11547
3587 11549 3588 11532
$$
SC2 follow-up statements
450
WGUS75 KVEF 022307
FFSVEF
Flash Flood Statement
National Weather Service Las Vegas NV
407 PM PDT THU AUG 2 2018
NVC003-030030-
/O.CON.KVEF.FF.W.0095.000000T0000Z-180803T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Clark NV-
407 PM PDT THU AUG 2 2018
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 530 PM PDT FOR
WEST CENTRAL CLARK COUNTY...
At 404 PM PDT, Doppler radar indicated another round of
thunderstorms producing heavy rain pushing toward the Interstate 15
corridor from Primm through Jean.
Some locations that will experience flooding include...
Jean, Nipton Road Mile Marker 3 and Goodsprings.
This includes Interstate 15 in Nevada between mile markers 2 and 18.
LAT...LON 3580 11520 3550 11512 3545 11518 3569 11547
3587 11549 3588 11532
$$
SC077
WGUS75 KVEF 030026
FFSVEF
Flash Flood Statement
National Weather Service Las Vegas NV
526 PM PDT THU AUG 2 2018
NVC003-030035-
/O.EXP.KVEF.FF.W.0095.000000T0000Z-180803T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Clark NV-
526 PM PDT THU AUG 2 2018
...THE FLASH FLOOD WARNING FOR WEST CENTRAL CLARK COUNTY WILL EXPIRE
AT 530 PM PDT...
The heavy rain has ended over the area from Primm to Goodsprings to
Jean. Flooding is no longer expected to pose a threat. Please
continue to heed any remaining road closures.
LAT...LON 3580 11520 3550 11512 3545 11518 3569 11547
3587 11549 3588 11532
$$
JAThe office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 2, 12:41 PM PDT | Severe Thunderstorm Warning | VEF | Clark | 49 min |
| Aug 2, 2:26 PM PDT | Severe Thunderstorm Warning | VEF | Clark | 49 min |
| Aug 2, 2:48 PM PDT | Flash Flood Warning | VEF | Clark | 3 hr |
| Aug 2, 3:42 PM PDT | Flash Flood Warning | VEF | Esmeralda, Nye | 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.