An upper-level trough and surface cold front triggered lines of showers and isolated thunderstorms in southeast Arizona. Lightning from one storm damaged a power pole on the Tohono O'odham Nation.
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The episode as NWS TWC wrote it up.
An upper-level trough and surface cold front triggered lines of showers and isolated thunderstorms in southeast Arizona. Lightning from one storm damaged a power pole on the Tohono O'odham Nation.
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 Tucson, AZ wrote its last area forecast discussion before the first event at Nov 3, 2:02 AM MST, 58 minutes earlier.
Area Forecast Discussion National Weather Service Tucson AZ 202 AM MST Thu Nov 3 2022 .SYNOPSIS...The approaching storm will bring some off and on showers to the area through tonight, gusty winds today from Tucson eastward, and much colder temperatures into Saturday morning. Dry conditions are expected for the weekend into next week with quickly moderating temperatures. && .DISCUSSION...A few showers and a couple of small thunderstorms have popped up as expected from Tucson northward within an area of deeper moisture convergence in advance of the storm system. As the Storm draws nearer, we should see some more pop up, primarily north and west of Tucson for the daylight hours and over higher terrain. Cold Air Advection (CAA) is just now begining to get going and temperatures are starting to respond with a slow decline. Winds are currently a bit gusty most areas and they will pick up this afternoon especially over Cochise county. The upper trough axis and associated cold front will sweep across the area this evening, somewhere in the neighborhood of 7 pm for the Tucson area. This should be associated with a more consolidated line of showers and isolated embedded thunderstorms. I separated the Pop grids into 3-hourly bits to better capture that as well as spending some additional effort on the hourly winds and temperatures to capture that boundary. Once that passes, precipitation will diminish, first in the valleys then over the mountains with dry conditions expected areawide by dawn Friday. Colder air will flood into the area with and behind the upper trough axis with snow levels (near mountain top now) dropping to around 6,000 feet this evening and 4,500 ft by Friday morning, but the precip will have ended by then. Expecting a few inches of snow at the higher elevations generally above about 6-7,000 ft. Temperatures Friday and Saturday mornings will drop well below normal with quite a few areas east and south of Tucson dipping below freezing with a couple of mid to upper 20s in the local coldest locations. These areas have already been subject to subfreezing temperatures so freeze warnings are not needed at this time. Saturday afternoon into the early have of next week our temperatures will moderate to near normal levels before settling back several degrees the latter half of the week. At this time it looks dry but we will need to watch a passing trough Wed to Wed night which could produce a shower or two. && .AVIATION...Valid through 04/12Z. BKN-OVC clouds at 5k-9k ft AGL thru 04/04Z, then clearing from west to east across southeast Arizona. A chance of valley -SHRA and mountain -SHSN areawide thru 04/04Z, diminishing from west to east aft 04/04Z but still lingering across eastern areas thru the end of the forecast period. SFC wind thru 04/02Z, SWLY/WLY at 13-23 kts and gusts to between 23-30 kts, with the strongest wind east of KTUS in the vicinity of KALK, KDUG and KSAD. Aft 04/02Z, SFC wind will diminish to less than 10 kts from KTUS westward, with NWLY winds at 10-15 kts east of KTUS. Aviation discussion not updated for TAF amendments. && .FIRE WEATHER...A storm system will move across southeast Arizona today and tonight, resulting in a chance of valley rain showers and higher elevation snow, as well as colder temperatures today and Friday. Dry conditions return to southeast Arizona Friday and persist into at least the middle of next week. Temperatures warm back up to slightly below seasonal normals on Saturday and continue through Tuesday before cooling again the second half of next week. Gusty southwest through northwest 20-foot winds of 15-20 mph are expected today with the passage of the storm system. Afterward, 20-foot winds will generally be less 15 mph through the middle of next week. && .TWC WATCHES/WARNINGS/ADVISORIES... None. && Public...Cerniglia Aviation...Zell Fire Weather....Zell Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
The Phoenix radar (KIWA), 131 km away, was scanning. The volume nearest the first event began at 10:02 UTC.
1 lightning. Local standard time, as filed.
Lightning struck a power pole along Route 15 just north of Highway 86. The pole caught fire and caused a power outage on the Tohono O'odham Nation that persisted for three hours.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Arizona in 2022Every state in 2022This day in weather historyWarnings in Arizona, November 2022
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: 1063534.