UPDATE | 8:23 p.m.
Channel 13 meteorologist Linh Truong shared that around 7:45 p.m., radar picked up slow-moving thunderstorms producing heavy rain well east of the I-11, which will drain over Alamo Road.
Indian Springs is included in areas of impact.
Parts of northwestern Clark County and southwestern Lincoln County are still under flash flood warnings, which are set to be in effect until 9:15 p.m.
UPDATE | 8:02 p.m.
NWS issued a flash flood warning for the Pioche area in Lincoln County, reminding community members to not cross flooded roadways as heavy rain hits the area.
The flash flood warning is in effect until 11 p.m. on July 17.

UPDATE | 6:22 p.m.
NWS said that Kyle Canyon Road and Indian Springs on US-95 are experiencing heavy rain, warning of flash floods nearby. The warning is set to expire at 9:15 p.m. on. July 17.

UPDATE | 5:45 p.m.
RTC said southbound I-15 at Jean is now open. Travelers should still expect traffic delays.
UPDATE | 5:44 p.m.
RTC said the northbound on and off ramps at I-15 and Primm Boulevard are now open.
UPDATE | 5:40 p.m.
RTC said southbound Interstate 15 at Jean is closed due to flooding. Southbound traffic must exit at Jean.

UPDATE | 5:22 p.m.
The Regional Transportation Commission of Southern Nevada issued a flood alert for northbound traffic on Interstate 15 at Primm near the stateline. Full roadway closure at I-15 NB on and off-ramps at Primm Boulevard.
Travelers should expect delays.
#FASTALERT
— RTC Southern Nevada (@RTCSNV) July 18, 2025
🚨Flood Alert🚨
⛔️I-15 NB on-ramp & off ramp at Primm Blvd: Full Closure
🛣️Expect Delays! pic.twitter.com/2t2AkTbBgf
UPDATE | 4:54 p.m.
The NWS issued a Flash Flood Warning at the Primm stateline. Travelers should expect heavy rainfall.

UPDATE | 2:32 p.m.
The NWS issued a Severe Thunderstorm Warning for the Mesquite-Bunkerville area through 3:15 p.m.

ORIGINAL REPORT
LAS VEGAS (KTNV) — Monsoon moisture is expected to bring pockets of heavy rain, lightning and gusty winds to parts of Southern Nevada on Thursday and Friday.
A flood watch has been issued for much of Southern Nevada, including Las Vegas, through 11 p.m. Thursday. There is at least a 40% chance of thunderstorms that may cause flooding in urban areas and those with poor drainage.
According to the National Weather Service's Las Vegas field office, afternoon and evening storms are expected to produce scattered flash flooding in parts of the region.
WATCH the full forecast with Channel 13 meteorologist Justin Bruce:
The chance of rain lingers at 30% on Thursday night and will rise to 50% on Friday. It drops to 10% on Saturday, with dry weather expected to return on Sunday.
For now, the NWS advises residents to remain alert and be prepared to take action if flash flood warnings are issued.
If you experience active weather in your area, and it's safe to do so, share your photos and videos with Channel 13 by sending them to desk @ktnv.com.
Channel 13 meteorologists will keep you updated throughout the day as this storm system develops.
T-storm chances will increase today. The highest chances will be over eastern Mohave County, but scattered storms are possible in the Las Vegas Valley by mid-to-late afternoon. Distant and nearby storms may produce sudden, gusty winds! #nvwx #azwx #cawx pic.twitter.com/HRIjR29qBl
— NWS Las Vegas (@NWSVegas) July 17, 2025