The latest monsoon surge of moisture has proven to be a BIG BUST for those of us hoping for some rain here in the Palm Springs area. Thankfully, some areas to our immediate north have finally received some beneficial moisture, although it has come in the form of sudden flash floods for areas of the high deserts to our north.
As for the Palm Springs area, we were treated to the second haboob of the week. This was a much weaker system, originating from thunderstorms over the northeastern deserts, not far from Needles and Las Vegas. Outflow winds from the NE gusted to near 35 mph across some of the higher deserts for several hours last night, creating a more elevated layer of dust than Saturday's event. Here is how the skies looked late last night.
Thankfully, this was a far less dramatic event. Upper level winds carried most of the dust, about 5,000-10,000 feet up in the atmosphere, as the wind shift to the NE didn't surface in the Coachella Valley. The dust has been improving slowly today.
THUNDERSTORMS - SO CLOSE, YET SO FAR...
Today will likely be the last day we will have a chance of thunderstorms. Strong storms are close... hitting the Joshua Tree and 29 Palms area at times today, with flash flood warnings being posted by the National Weather Service late this afternoon.. A small cell has also been forming over the Santa Rosa Mountains south of Palm Desert, remaining largely stationary. Here's the latest radar image from about 4:15p Thursday, showing very strong storms north and east of Yucca Valley, as well as a cell in the mountains south of Palm Desert.
OUTLOOK FOR THE NEXT SEVERAL DAYS
The humid airmass we have experienced for the past week or so will slowly be replaced by a drier airmass from the southwest over the weekend and into the middle of next week. Humidity levels should drop, with dew points dropping back into the 40's and 50's for several days. The widely scattered thunderstorms that have hit the higher deserts to our north will eventually be replaced by clear skies and locally windy afternoons in the usual windy locations. This weather pattern is expected to remain into the middle of next week, with temps close to normal... mostly in the 100-110 range. If the dry air materializes as expected, it is possible that overnight low temps may drop down to the comfortable low-mid 70's for several days.