Area Forecast Discussion
Issued by NWS Las Vegas, NV
Issued by NWS Las Vegas, NV
250 FXUS65 KVEF 220135 AFDVEF Area Forecast Discussion National Weather Service Las Vegas NV 635 PM PDT Sat Sep 21 2024 .SYNOPSIS...High pressure will build over the region this upcoming week. Conditions will be dry while temperatures climb several degrees above normal. && .UPDATE...Showers over southern Utah headed towards northern Mohave County have weakened and no precipitation is expected anywhere in the forecast area through the rest of the week. Temperatures are on the rise; current temperatures are 5 to 15 warmer than they were at this time yesterday. Overnight lows will be near normal for late September, which for Las Vegas means temperatures in the low 70s. No forecast updates are needed at this time. && .DISCUSSION...Through next Saturday. Any light showers that may be over far northeast Mohave County this afternoon will likely end by 6 pm MST as the upper low moves east through the Four Corners region. Elsewhere today, temperatures have been very comfortable with just some shallow cumulus forming over the higher terrain. Model simulations yesterday were still in the camp that our region would feel more of the affects from the passage of a trough moving through UT/CO early in the week. Last nights 00Z, and now the latest 12Z simulations have backed off, now moving the trough further north and east. This is reflected in the temperatures with the Las Vegas forecast on Tuesday now 97, versus 92 yesterday. Under the influence of a stronger ridge this upcoming week will be dry with above normal temperatures. Moderate HeatRisk returns to the Mojave Desert, particularly the Lake Mead NRA, lower Colorado River and Death Valley NP. && .AVIATION...For Harry Reid...Diurnal winds generally 4-7 knots knots can be expected through Sunday with east-southeast components in the afternoon and southwest components overnight. No significant clouds. For the rest of southern Nevada, northwest Arizona and southeast California...Diurnal winds generally 10 knots or less can be expected at TAF sites across the region. FEW-SCT afternoon clouds will develop over the higher terrain of southern Nevada and northwest ARizona with bases 12-14 kft MSL. && .SPOTTER INFORMATION STATEMENT...Spotters are encouraged to report any significant weather or impacts according to standard operating procedures. && $$ UPDATE...Meltzer DISCUSSION...Pierce AVIATION...Adair For more forecast information...see us on our webpage: https://weather.gov/lasvegas or follow us on Facebook and Twitter