FXUS65 KVEF 090917 AFDVEF Area Forecast Discussion National Weather Service Las Vegas NV 217 AM PDT Thu Jul 9 2026 .KEY MESSAGES... * Dry conditions and above-normal temperatures will continue through the end of the week. * Monsoonal moisture begins increasing this weekend, resulting in increased chances for showers and thunderstorms early next week. && .DISCUSSION...Today through Wednesday. High pressure will be the driving feature of regional weather over the next seven days. The center of the high remains parked over southern California and Arizona, keeping temperatures several degrees above-normal. Las Vegas has a 70 to 80 percent chance of reaching 110 degrees today and Saturday, which would be the first 110-degree day since August 21st, 2025. Hot daytime temperatures combined with warm overnight low temperatures will result in widespread Moderate (Level 2 of 4) with pockets of Major (Level 3 of 4) Heat Risk for most locations. A combination of dry and breezy conditions also prompt elevated fire weather conditions across much of the region today and tomorrow. The high becomes centered over the Four Corners this weekend, a classic setup for monsoonal moisture advection into the southwestern United States. PWATs in excess of 1 inch spread into areas south and east of Interstate 15 on Sunday, spreading north into the rest of southern Nevada and southeastern California by Monday. Gusty outflow winds and dry lightning appear to be the primary threats for at least the first few days as forecast soundings display inverted-V patterns with moisture aloft and drier air near the surface. Orographic lift will favor storm formation over high terrain. The high stays put through midweek and ensembles show persistent healthy moisture advection. Lower heights aloft, cloud cover, and atmospheric moisture will help reduce temperatures by a few degrees. && .AVIATION...For Harry Reid...For the 06Z Forecast Package...SSW winds have remained elevated even after sunset in the 10-13 kt range with isolated higher gusts. Expect these conditions to persist for another hour or two before speeds finally drop to and below 10 kts for the rest of the night. Following a similar pattern on Thursday, winds shift to the SSE-S briefly mid-morning, then veer to the S-SSW during the afternoon with another round of gusts to 20-25KT expected thereafter. Hi-res guidance is picking up on a weak mid-upper disturbance moving through around 10/06z possibly resulting in a burst of stronger winds in the 06-11z timeframe. They have fairly consistent in showing this for a few runs, so have added gusts to 18kts toward the end of the TAF period late Thursday night into early Friday. VFR conditions with clear skies through the period. Expect temperatures at or above 100 degrees 17z - 03z with a high of 110 expected tomorrow. For the rest of southern Nevada, northwest Arizona and southeast California...For the 06Z Forecast Package... Gusts have dropped off after sunset at most sites with KDAG being the exception as strong westerly winds persist through around midnight with gusts to 25 kts. Daily wind pattern expected again on Thursday with southerly afternoon wind gusts of 20-25 kts for most other locations while KDAG remains out of the WSW to WNW. Lower confidence at KBIH tomorrow as hi-res guidance continues to show northerly flow persisting well into the day with no switchover to a S direction. For now, keeping light northerly winds in the KBIH forecast through 21z, then transitioning to westerly by 00z as guidance suggests. Confidence is lower overall in the KBIH TAF due to the deviation from the normal diurnal wind pattern. High confidence in the forecast for all other sites. VFR conditions with no operationally significant cloud cover will continue. && .SPOTTER INFORMATION STATEMENT...Spotters are encouraged to report any significant weather or impacts according to standard operating procedures. && $$ DISCUSSION...Meltzer AVIATION...Moore For more forecast information...see us on our webpage: https://weather.gov/lasvegas or follow us on Facebook and Twitter