Tomorrow (Tuesday) is the last day of meteorological summer. September is almost here! Celebrate with Earth, Wind, and Fire.
On the other hand, there's not much to celebrate this morning as summer is ending with hazards aplenty.
The children's song goes "What does Idaho, she hoes her Maryland," but yesterday, Ida raked Louisiana, coming ashore after rapidly intensifying into a ferocious category 4 hurricane.
|Ida at Landfall. Source: NCAR/RAL.|
The track and intensity forecasts for Ida were quite good, as pointed out by Sam Lillo below.
Every NHC forecast for Ida.— Sam Lillo (@splillo) August 29, 2021
One might say they're pretty good at their jobs. pic.twitter.com/aHhVvw2lHr
Still, it is a devastating event and one with compound hazards from wind, storm surge, precipitation-related flooding, and COVID-19. The phrase "it's over" doesn't really apply today in southeast Louisiana.
Fires continue to rage in California, with the Caldor Fire now an immediate threat for the Tahoe basin and ski areas.
The latest mapping at FireMappers shows the fire perimeter has pushed past Sierra-at-Tahoe ski area with hot spots at Echo Summit. Kirkwood is also in the cross hairs further south.
Photos from the ski resort below from @ABCliz.
Images from @sullyfoto of the #CaldorFire burning through the Sierra-at-Tahoe ski resort in Twin Bridges overnight.— Liz Kreutz (@ABCLiz) August 30, 2021
The fire continues to grow, getting closer to South Lake Tahoe. pic.twitter.com/m84hNAmpDv
I'll call the forecast "not good" with an upper-level trough moving across the Pacific Northwest producing dry, southwesterly flow in the Tahoe area through Thursday morning. Below is the GFS time-height section for south Lake Tahoe showing very low relative humidity and SW winds at low levels of 20-30 knots through Thursday morning.
Air quality in northern Utah has been intermittently poor this summer, although it's nothing compared to the smoke-filled communities in northern California. The latest from PurpleAir shows hazardous air quality conditions at some locations near fires.
For comparison, concentrations reported by Purple Air in the Salt Lake Valley at 9 AM this morning are generally in the 35-55 μg/m3 range, about 1/10th that in South Lake Tahoe.
Based on last night's minimum and forecasts for this afternoon and tomorrow, we may hang on to the record, but it's going to be close.