Area Forecast Discussion
Issued by NWS Tucson, AZ
Issued by NWS Tucson, AZ
252 FXUS65 KTWC 061017 AFDTWC Area Forecast Discussion National Weather Service Tucson AZ 317 AM MST Sun Oct 6 2024 .SYNOPSIS...Unseasonably hot temperatures and dry conditions will continue, with daily highs in Tucson ranging from 100 to 104 the first half of the week. A gradual cooling trend through the rest of the week, but remaining well above seasonal normals. && .DISCUSSION...With the storm track remaining well north and a very weak southern branch split, broad high pressure will continue to dominate the desert southwest. That means more record highs and generally dry lower levels. A weak split will top off the ridge late in the new week, with high pressure slowly retreating southward. Ensemble mean height anomalies are still suggesting a weak low dirtying up the mean ridge position near our area days 6-10. This should continue to drive a slow cooling trend to take the edge off the heat and could bring a little moisture for a few showers around mid month. Either way, we should continue to see October on a path toward well above average temperatures as we see only weak split energy instead of stronger weather system trajectories migrate southward. && .AVIATION...Valid through 07/12Z. SKC to FEW-SCT clouds 7k to 10k ft AGL. SFC winds ELY/SELY less than 10 kts overnight, with WLY/NWLY winds less than 12 kts in the afternoon. Aviation discussion not updated for TAF amendments. && .FIRE WEATHER...Dry conditions continue through at least most of the week. Easterly to southeasterly 20 ft winds will increase to 10 to 15 mph the first half of the week. Min RHs remain 5-15 percent for the lower elevations and low to mid 20s for the higher elevations. && .TWC WATCHES/WARNINGS/ADVISORIES... None. && $$ Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson