Area Forecast Discussion
Issued by NWS Las Vegas, NV
Issued by NWS Las Vegas, NV
070 FXUS65 KVEF 290802 AFDVEF Area Forecast Discussion National Weather Service Las Vegas NV 102 AM PDT Wed May 29 2024 .SYNOPSIS...Look for a relatively quiet weather period over the next seven days featuring above normal temperatures, dry conditions, periods of clouds, and occasional breezy afternoon winds. && .DISCUSSION... An upper level trough will move across the northern Great Basin today but is only expected to result in some localized gustiness for our area. We may see a few mid and high clouds pass over the area but otherwise, we are expecting high temperatures to be around 3-5 degrees above normal this afternoon. For Thursday, there are no synoptic weather features to contend with so we are basically looking for a slight bump in temperatures by a couple of degrees under light wind conditions. Friday will tell a similar story although better lower atemospheric mixing could aid in temperatures eclipsing what is currently forecast, with the NBM probabilities giving Las Vegas a 25% chance of seeing its first 105 degree day. Over the weekend, expect for some weak troughing moving over our area which is expected to temper daytime heating a bit but at least for Saturday, there will be a notable increase in winds across much of the area. Generally, we are looking for widespread 20-30 mph winds on Saturday but winds could be stronger across the Sierra and in the western portions of the Mojave Desert. A slight flucuation in temperatures and lighter winds are forecast for Sunday. A more potent trough moves across the Great Basin on Monday for increasing winds but at this point, no significant winds requiring headlines. A midweek ridge of high pressure sets up sending area temperatures to around 10 degrees abve normal. This will give Las Vegas the next best chance of high tempertures reaching 105 degrees. The NBM gives a 50% chance of occurrence. .AVIATION...For Harry Reid...Winds will follow typical diurnal directional variations today, with variable to, at times, northeast winds through this morning, turning to the southeast by early afternoon. Sustained wind speeds are expected to remain less than 10kts through mid-afternoon, although an isolated gust to 15kts is possible once the winds turn to the southeast (20% chance). Winds will return to the southwest around 00Z, and gusts of up to 20kts will become more frequent through mid-evening. A period of north to northeast winds is possible Thursday morning, with speeds potentially exceeding 10kts by the end of the TAF period. VFR conditions will prevail throughout the period. For the rest of southern Nevada, southwestern California, and northwestern Arizona...Conditions at the Las Vegas Valley TAF sites will be similar to those expected at KLAS, except KHND, where winds will remain predominately south to southwest through tonight. Northerly winds will prevail at KBIH today into tonight, with a few gusts to 20kts possible during the afternoon. Gusty westerly winds will continue at KDAG, while the Colorado River TAF sites will see light winds into this afternoon, followed by south to southwest winds this evening and early night. VFR conditions will prevail through the TAF period. && .SPOTTER INFORMATION STATEMENT...Spotters are encouraged to report any significant weather or impacts according to standard operating procedures. && $$ DISCUSSION...Salmen AVIATION...Planz For more forecast information...see us on our webpage: https://weather.gov/lasvegas or follow us on Facebook and Twitter