GaWx

I have to admit that it would be funny to see the NE Pacific cool back more than the W Pac and see how weenie forecasters would then spin it. Of course @snowman19would have a blast!

He was slow this time, but Bastardi finally this morning had his expected say about Gabrielle’s current anemic look vs the NC/VA no name system: What a Joke. Stratocu Swirl Gabrielle Then Joe compares satellite images of the two: Gabrielle: now a naked swirl but still being called a TS Offshore NC/VA nontropical low: was never tropical and thus was never a TS but unlike Gabrielle now it did have some nearby convection/tropical characteristics at this point: What JB especially doesn’t like is the inconsistency more than whether or not the offshore NC/VA nontropical low should have been named (he was wishy-washy on that). He thinks Gabrielle should be downgraded though I have to admit it still has a very tight tropical swirl unlike no-name.

For all practical purposes, it’s already weak La Niña: The RONI equivalent daily is likely already well down into weak Niña range (subtract at least ~0.25C from the raw 3.4 SST anomaly based on the slowly reducing but still persistent RONI minus ONI) Below are some straight 3.4 anomalies (caution that CDAS has typically been too cold but sometimes CRW is slightly too warm): based on these four, alone, I’d think the raw daily anomaly is likely ~-0.4 to -0.5 meaning ~-0.7 for RONI equivalent: Buoys:

Was this one posted before? I get them all mixed up with their typically fictitious southern battle zones and NE blizzard watches and huge snowstorms and N Plains polar vortices and amazingly enough always warm/dry in the W where E US wx weenies conveniently don’t care: https://www.powder.com/news/east-coast-blizzard-watch-winter *Edit: I just noticed that this is the one posted yesterday that I even commented on lol. I told you guys I get these mixed up and this is proof!

But isn’t a KU a pretty random event that can happen in just about any winter if things happen to line up? In other words, isn’t there at least some KU potential every winter (I realize the probabilities vary each winter) because it’s random?

12Z summary of main ops-Icon H 250 miles E/SE of Bermuda 9/22-3-GFS another relatively weak run with a TS over Bermuda but takes 10 days (9/27)!-CMC H 150 miles E/SE of Bermuda 9/22-Euro H 200 miles E/SE of Bermuda 9/22-JMA out to only 72 as a TD recurving-UKMET: TS ~150 miles E of Bermuda 9/22:NEW TROPICAL CYCLONE FORECAST TO DEVELOP AFTER 24 HOURSFORECAST POSITION AT T+ 24 : 20.0N 50.9WLEAD CENTRAL MAXIMUM WINDVERIFYING TIME TIME POSITION PRESSURE (MB) SPEED (KNOTS)-------------- ---- -------- ------------- -------------1200UTC 18.09.2025 24 20.0N 50.9W 1009 350000UTC 19.09.2025 36 20.8N 53.2W 1009 311200UTC 19.09.2025 48 21.3N 55.3W 1010 290000UTC 20.09.2025 60 22.4N 58.1W 1011 301200UTC 20.09.2025 72 23.6N 59.5W 1011 270000UTC 21.09.2025 84 25.1N 61.1W 1011 291200UTC 21.09.2025 96 26.9N 61.2W 1011 330000UTC 22.09.2025 108 29.3N 62.0W 1008 431200UTC 22.09.2025 120 31.2N 62.2W 1007 470000UTC 23.09.2025 132 33.5N 61.9W 1005 411200UTC 23.09.2025 144 36.5N 58.5W 1003 420000UTC 24.09.2025 156 39.5N 52.7W 994 431200UTC 24.09.2025 168 42.3N 44.3W 982 52

Followup: JB was surprisingly quiet. All he said was this: “Now, the red-hatched area has been designated Tropical Depression 7, posing a threat to Bermuda but not the U.S.” But then he immediately mentioned a possible unexpected “side-show Bob” to form off the SE US.

I love the “battle-zone” that so many forecasters love to put much of the SE US in every winter lol.

Thanks. Indeed, the chances of exceeding 100 total continue to decline. For reference, the 1991-2020 average from now to the end is 51: -22 rest of Sept -22 during Oct -6 during Nov -1 during Dec So, to reach 100, 2025 would need to be ~10 above the 1991-2020 avg, a tall but not near impossible order. But it being a weak La Nina and recent seasons being pretty heavily backloaded help those chances to an extent. What Gabrielle does or doesn’t do will be a pretty significant part of the mix.

I bet Bastardi will have a thing or two to say about this upgrade lol.

Check this out folks: 0Z GFS is much weaker with strongest at 1005 mb/barely a TS followed by it weakening and then dissipating over open water of the SW Atlantic into nothing! The prior 13 runs all had hurricanes, usually MH! What the? ————— 0Z UKMET: passes just E of Bermuda (similar to 0Z Euro): TROPICAL DEPRESSION 92L ANALYSED POSITION : 14.4N 43.9W ATCF IDENTIFIER : AL922025 LEAD CENTRAL MAXIMUM WIND VERIFYING TIME TIME POSITION PRESSURE (MB) SPEED (KNOTS) -------------- ---- -------- ------------- ------------- 0000UTC 17.09.2025 0 14.4N 43.9W 1010 28 1200UTC 17.09.2025 12 16.9N 45.4W 1009 33 0000UTC 18.09.2025 24 19.5N 48.0W 1009 41 1200UTC 18.09.2025 36 20.7N 50.6W 1008 37 0000UTC 19.09.2025 48 21.3N 53.3W 1008 31 1200UTC 19.09.2025 60 21.7N 55.6W 1009 27 0000UTC 20.09.2025 72 22.0N 57.6W 1010 26 1200UTC 20.09.2025 84 23.3N 59.0W 1010 30 0000UTC 21.09.2025 96 24.8N 60.2W 1010 29 1200UTC 21.09.2025 108 26.2N 60.8W 1010 32 0000UTC 22.09.2025 120 27.5N 61.9W 1009 37 1200UTC 22.09.2025 132 29.2N 63.5W 1010 37 0000UTC 23.09.2025 144 31.1N 63.5W 1010 34 1200UTC 23.09.2025 156 33.1N 62.8W 1010 33 0000UTC 24.09.2025 168 34.0N 59.7W 1009 30

AAM says solid La Niña like for next month: @snowman19

There's no indication it’s tropical. But it’s a hybrid of sorts though hybrid doesn’t necessarily mean subtropical, which is a type of hybrid, either. Most pro mets I’ve seen are saying not ST. I had been wondering if it could be ST.

What the? @donsutherland1@snowman19@bluewave

8 PM TWO: Central Tropical Atlantic (AL92): Showers and thunderstorms associated with an elongated area of low pressure located about midway between the Windward Islands and the Cabo Verde Islands have changed little in organization during the past 12 hours or so. However, environmental conditions are conducive for additional development, and a tropical depression or storm is expected to form in the next day or two as the system moves west-northwestward or northwestward at 10 to 15 mph over the central tropical Atlantic. Additional information on this system, including gale warnings, can be found in High Seas Forecasts issued by the National Weather Service. * Formation chance through 48 hours...high...90 percent. * Formation chance through 7 days...high...90 percent.