As Las Vegas braces for a significant break in the heat, residents can anticipate gusty conditions that are set to emerge in the tail end of the week. The National Weather Service Las Vegas reports temperatures will peak above normal today, but relief is on the horizon as a large low pressure system begins to steer cooler air from the Gulf of Alaska toward the region.
The anticipated cooldown is a marked departure from the current swelter, promising to gradually lower daytime highs by around 15 degrees by the weekend. It won't be long before "Las Vegas to reach 110 degrees after the coming cooldown," according to the NWS. However, the change isn't expected to come quietly. A deep low pressure system is forecasted to quickly move across the western states, bringing with it gusts that could approach 40 mph in parts Inyo, Nye, and Lincoln counties by Thursday.
Southern Nevada, northwest Arizona, and southeast California will see wind patterns shift late this morning and early afternoon, with widespread gusts of 20-25KT expected across the region. "Convection this afternoon will be limited and be centered further east than previous days in central Arizona," the NWS explains. While the monsoonal moisture is predicted to briefly increase storm coverage in northwest Arizona from tomorrow to Thursday, it's anticipated to dissipate by Thursday night.
For those with outdoor plans or work that involves being mindful of weather conditions, the approaching system is set to bring wind gusts on Friday, with the potential for creating critical fire weather conditions due to the combination of strong winds and low humidity. The National Weather Service anticipates most areas of concern will have "50+ percent chances of 40+ mph wind gusts" on Friday. Fortunately for residents, and unlike the mercury which seems determined to quickly climb back up next week, the winds are forecasted to decrease over the weekend, thus reducing fire danger.
For aviators, "Light winds early this morning will become southeast then southwest through the morning and early afternoon," with gusts to around 20KT expected, particularly after 20Z at Harry Reid, according to NWS. While convection remains very limited across the region today, with no significant cloud cover expected through the TAF period, pilots should prepare for increased activity and changing conditions by tomorrow morning.
The National Weather Service also encourages spotters to report any significant weather or impacts in line with standard operating procedures.
