GaWx

I just watched Joe Bastardi’s free to the public Saturday Summary. He says the Nepal disaster has nothing to do with CC. Why? -He says that there has been no net change in temperature in Nepal in 400 years! -He shows a summer temp. anomaly map that has blue colors all over Tibet including the Tibet-Nepal border. So, I’d like to know whether or not these two things are true. Anyone know? @donsutherland1

The 0Z UKMET (as an TD) and CMC still have this recurving TC.

0Z: UKMET and CMC both dropped the return of Dolly.

Early afternoon in Vail I saw the strongest thunderstorm of my CO trip. It got so dark just before the start! I considered it to be severe with very strong winds at the start bringing down cold air into the 50s. The winds must have been 50++, which the aspens handled well. Soon after good drought helping heavy rain fell followed by lots of pea sized hail that lasted ~5 minutes. As a result of 3 periods of rain, it was in the 50s most of the afternoon! Sure beats GA summer heat and humidity! It’s down to 48 with rain and wind. Feels like what typical winter day would be in Savannah! This is why I like coming here in summer.

12z Euro: looks like a TD that comes ashore near LA/TX border midday Tue.

I’m talking about models that had avg for Aug minus avg for July ~1C. It’s looking more like just 0.5C.

12Z UKMET for 2nd full run in a row has a TC originating in the W MDR well out in the run. 0Z had a TD but 12Z has a strengthening mid-grade TS as it recurves well away from any landmass due to a notable upper trough per H5 maps: NEW TROPICAL CYCLONE FORECAST TO DEVELOP AFTER 120 HOURS FORECAST POSITION AT T+120 : 15.8N 52.0W LEAD CENTRAL MAXIMUM WIND VERIFYING TIME TIME POSITION PRESSURE (MB) SPEED (KNOTS) -------------- ---- -------- ------------- ------------- 1200UTC 04.09.2026 120 15.8N 52.0W 1011 25 0000UTC 05.09.2026 132 16.9N 55.0W 1010 30 1200UTC 05.09.2026 144 17.8N 57.6W 1008 35 0000UTC 06.09.2026 156 19.3N 59.2W 1006 41 1200UTC 06.09.2026 168 20.8N 59.6W 1002 48

12Z UKMET doesn’t quite designate this as a TD but it does have 25 knot winds just offshore LA Mon night and landfall Tue AM near TX/LA border. Lowest SLP only gets down to 1011 mb fwiw.

12 UKMET: ex-Dolly becomes a TD right before it moves NW into FL NEW TROPICAL CYCLONE FORECAST TO DEVELOP AFTER 102 HOURS FORECAST POSITION AT T+102 : 26.5N 78.7W LEAD CENTRAL MAXIMUM WIND VERIFYING TIME TIME POSITION PRESSURE (MB) SPEED (KNOTS) -------------- ---- -------- ------------- ------------- 0000UTC 04.09.2026 108 27.5N 79.5W 1008 29 1200UTC 04.09.2026 120 29.2N 81.3W 1008 31 0000UTC 05.09.2026 132 30.8N 83.2W 1008 24 1200UTC 05.09.2026 144 32.0N 85.4W 1009 19 0000UTC 06.09.2026 156 32.8N 87.3W 1008 18 1200UTC 06.09.2026 168 33.1N 87.9W 1008 20

August overall was a notable bust for Nino 3.4 as several models had had a steep anomaly warming of a record breaking ~1C from July to Aug whereas the last 4 weeks have overall been net ~flat meaning a warming from July to August of only ~0.5C. Thus, the progged Nov peaks have recently been dropping on the CFS:

0Z UKMET: H at 168 strengthening on a slow WNW move in Gulf NEW TROPICAL CYCLONE FORECAST TO DEVELOP AFTER 102 HOURS FORECAST POSITION AT T+102 : 24.6N 78.6W LEAD CENTRAL MAXIMUM WIND VERIFYING TIME TIME POSITION PRESSURE (MB) SPEED (KNOTS) -------------- ---- -------- ------------- ------------- 1200UTC 03.09.2026 108 24.9N 79.9W 1008 30 0000UTC 04.09.2026 120 25.9N 82.1W 1005 33 1200UTC 04.09.2026 132 27.3N 84.2W 1001 38 0000UTC 05.09.2026 144 28.0N 86.2W 996 43 1200UTC 05.09.2026 156 28.4N 87.8W 989 61 0000UTC 06.09.2026 168 28.7N 88.9W 977 68

Chris, posted this last night: I suspect based on his post 2 nights earlier and the tone of this one that I largely won’t agree with the upcoming video, but let’s see what he says.

1. Based on Corcorahs and radar yesterday, I roughly estimate 0.1” fell at my home yesterday (8/27) thus bringing my location at 7.35” mtd through 8/27. 2. More rain has fallen and is still falling there today. I’ll have to roughly estimate later how much for 8/28. As of now the total for today I’m guessing 0.5” at the very least. Edit: my rough estimate for 8/28 at my home is 0.5” based largely on local TV radar estimates. That puts me at ~7.85” MTD.

I can’t post the maps because they’re too large for the space allowed here, but comparing today’s 12Z UKMET 120 hour map with the 168 hour map of the 12Z UK of 48 hours ago using Pivotal shows they’re very similar with regard to both with a somewhat healthy Dolly (1007 mb/well organized vs 999 mb on the run from 48 hours ago) recurving and the preliminary low back to being just a weak (1012ish) low that’s not designated a TC and headed toward NE FL.

FWIW, the GFS this morning redevelops Dolly's remnants in the GOM and gives Texas a hurricane. Thanks for posting this. After a careful look at the 6Z GFS, including the progged vorticity for various levels of the atmosphere, it appears to me like this may be a combo of Dolly’s remnants and additional vorticity similar to the vorticity that the last 4 full UKMET runs have shown off the SE coast developing into a sfc low (TC on last 3 runs).