A strong jet stream crossed over the Mojave Desert, leading to two periods of high winds in the Spring Mountains.
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The episode as NWS VEF wrote it up.
A strong jet stream crossed over the Mojave Desert, leading to two periods of high winds in the Spring Mountains.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Las Vegas, NV wrote its last area forecast discussion before the first event at Nov 22, 6:55 PM PST, 4 hours 35 minutes earlier.
Area Forecast Discussion National Weather Service Las Vegas NV 655 PM PST Fri Nov 22 2024 .SYNOPSIS...Dry and warming conditions are expected for most areas through Saturday. An approaching system will spread high elevation snow across the Sierra and gusty winds across the Mojave Desert tonight through Saturday night. Another system will move across the region through the first half of next week, resulting in chances for widespread rain and mountain snow. && .UPDATE... A Wind Advisory went into effect at 4 PM for the Eastern Sierra Slopes and Owens Valley with observations showing a sharp uptick in winds over the last couple of hours with the highest gust so far 61 mph in Round Valley. Winds will continue to increase through the day Saturday as the jet streak sags into the region. A High Wind Warning goes into effect at 1 AM Saturday for the Spring Mountains, a Wind Advisory goes into effect at 1 AM Saturday for the Las Vegas Valley and at 10 AM Saturday for Western Clark and Southern Nye Counties. All wind products are set to expire at 4 AM Sunday as the pressure gradient relaxes. A Winter Weather Advisory also went into effect at 4 PM for the Eastern Sierra Slopes and is also set to expire at 4 AM Sunday. Both wind and winter weather conditions will result in difficult driving conditions so be sure to use extra caution and allow extra time if traveling this weekend. The forecast remains on track with no updates needed at this time. && .PREV DISCUSSION...125 PM PST Fri Nov 22 2024 .SHORT TERM...Tonight through Sunday Night. Dry conditions are solidly in place across the region this afternoon. A stream of high clouds is gradually shifting south across the southern Great Basin as a weakening atmospheric river (AR) slides south through western California. A 140-150 kt jet associated with the large-scale trough will being to impinge upon the Sierra this evening and gradually work its way south and weaken to around 110-120 kt by Saturday night. This will help set the stage for very strong ridgetop winds and the potential for a moderate downslope wind event both in the Sierra into the Owens Valley as well as across the Spring Mountains into Red Rock Canyon and potentially the far western Las Vegas Valley. Confidence in impacts is slightly lower in the Sierra/Owens Valley given the coincidence of the potential wind with high elevation precipitation which tends to disrupt downsloping events. For the moment, have opted is issue a Wind Advisory for that area (along with the existing Winter Weather Advisory for elevations above 7000 ft). Winds do have the potential to reach US-395, but it appears those probabilities are generally 20-30%. For the Springs, the Wind Advisory was upgraded to a High Wind Warning given the chances for gusts in excess of 58 mph have increased above 50% for much of the northern/eastern slopes. Also issued a Wind Advisory for the Las Vegas Valley, primarily for the far western portions of the Valley. For the central/eastern portions of the Valley, peak gusts are likely be remain between 30-40 mph Saturday afternoon/evening. Precipitation chances for Saturday night into Sunday continue to dwindle with chances in the Las Vegas Valley now falling below 10% with this first round. The main chances for precipitation will be across the southern Great Basin areas of Nye and Lincoln counties. Winds will decrease by Sunday morning and highs Sunday will be 5-10 degrees cooler than Saturday. .LONG TERM...Monday through Thursday. Confidence in the details of the forecast begins to wane during the first half of next week. The latest cluster analysis continues to show a range of potential synoptic evolutions. The favored solutions is a relatively quick shift of the trough eastward across the region Monday-Tuesday. However, there remains a 10-30% chance of a slow progression that extends precipitation chances into the middle of the week. In any case, as this system moves through, precipitation chances will spread across the region. Snow in the Sierra could be on the order of 1-2 feet and a Winter Storm Watch was issued for a fairly broad period of time given the continued uncertainty in the timing. By the latter half of next week, generally dry conditions under cool northwest flow are favored. && .AVIATION...For Harry Reid...Winds will remain under 10 knots and will follow typical diurnal directional trends through early Saturday morning. Winds will pick up and become more southerly early Saturday morning. Winds will continue to increase in speed throughout the day on Saturday, with wind direction gradually shifting back to the southwest by late Saturday morning/early Saturday afternoon. Wind gusts are expected to top out in the 25 to 35 knot range. For the rest of southern Nevada, northwest Arizona and southeast California...Winds at the remaining Las Vegas Valley TAF sites will remain light, following typical diurnal directional trends through early Saturday morning when winds will increase in magnitude and become more southerly to southeasterly. These winds will continue to increase as they gradually swing around to the southwest. These wind gusts will top out in the 25 to 35 knot range. Winds at KDAG will remain under 10 knots and will follow typical diurnal directional trends with a brief period of light and variable winds as they transition. Light northerly winds will become light and variable this evening at KIFP. These light and variable winds will continue through the overnight hours before picking up and swinging around to the southeast on Saturday morning. KEED will see light and variable winds settle in from the west this evening. These light westerly winds will continue through the overnight hours before picking up and swinging around to the southeast on Saturday morning. KBIH will see 8 to 12 knot southeasterly winds increase in magnitude early this evening. These 20 to 25 knot southeasterly wind gusts will drop off during the overnight hours as showers develop in the Eastern Sierra. Winds will continue to maintain a more southeasterly direction through the overnight hours with the potential for light rain to impact the terminal area between 10 to 16 UTC. 8 kft CIGS are expected to accompany any showers that impact the terminal. Precipitation chances for KBIH will decrease on Saturday morning as winds swing around to the north. && .SPOTTER INFORMATION STATEMENT...Spotters are encouraged to report any significant weather or impacts according to standard operating procedures. && DISCUSSION...Wolcott AVIATION...Stessman For more forecast information...see us on our webpage: https://weather.gov/lasvegas or follow us on Facebook and Twitter
The national radar mosaic for the moment the first event began.
2 high wind. Local standard time, as filed.
These gusts occurred 3 miles NE of Mount Charleston.
These gusts occurred 3 miles NE of Mount Charleston.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Nevada in 2024Every state in 2024This day in weather historyWarnings in Nevada, November 2024
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1221631, 1221632.