Las Vegas Valley under flash flood advisory as rain moves in
A flash flood watch took effect Monday afternoon as residual moisture from Tropical Storm Rosa brought scattered rain and isolated thunderstorms to the Las Vegas Valley.
A few spots in the northwest valley, near Lone Mountain and Centennial Hills, received up to a half-inch of rainfall Monday, the National Weather Service said.
There is a 50 percent chance for rain for Tuesday morning followed by reduced chances for rain as the day progresses. The flash flood watch will expire at 5 a.m. Wednesday, although there is still a 40 percent chance of rain for the day.
Isolated showers and a couple of t-storms have developed. Storms will move northward around 15 mph.
Stronger storms will be capable of moderate to heavy rain. #nvwx #azwx #cawx pic.twitter.com/vnPSnvR5q5
— NWS Las Vegas (@NWSVegas) October 1, 2018
That moisture also is bringing cooler temperatures that should stick around even after the rain is gone. Highs were forecast in the 80s all week, after record-breaking heat in September, the weather service said. The average temperature for September was 88.1 degrees, breaking the previous record of 87.3 set in 2015, the weather service said.
⛈ #Rain Chances Update ⛈
? Moisture from #Rosa moves in
? Flash #Flood Watch in effect through Wednesday 5am
? 1-3"/hr rain possible for parts of #MohaveCounty
? Turn Around, Don't Drown
? Do not attempt to cross flooded roadways!#VegasWeather #NvWx #CaWx #AzWx pic.twitter.com/OSZqG36mrf— NWS Las Vegas (@NWSVegas) October 1, 2018
The forecast high for Tuesday is 84, the weather service said. Wednesday should see a high of 82, followed by a high of 81 on Thursday and Friday.
Contact Max Michor at mmichor@reviewjournal.com or 702-383-0365. Follow @MaxMichor on Twitter. Review-Journal staff writers Mike Shoro and Jacob Lasky contributed to this report.