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2025 Atlantic Hurricane Season


BarryStantonGBP
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 I count 8 of 30 (27%) of 12Z GFS ensemble members landfalling on the Conus from TX to ME within 8/27-9. GEFS suggests the MJO will most likely then be in phase 5, a rather active phase for Conus though not as active as phases 2 and 8. This is keeping me with a moderate concern for now:

IMG_4366.thumb.png.90de46d24f329c3a5d69c095a53bfaab.png

 But the 12Z Euro like the 0Z has no TC from this. Also, it isn’t on the 12Z CMC. So, we’ll see. I already noted the 12Z UKMET with it.

 

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29 minutes ago, GaWx said:

 I count 8 of 30 (27%) of 12Z GFS ensemble members landfalling on the Conus from TX to ME within 8/27-9. GEFS suggests the MJO will most likely then be in phase 5, a rather active phase for Conus though not as active as phases 2 and 8. This is keeping me with a moderate concern for now:

IMG_4366.thumb.png.90de46d24f329c3a5d69c095a53bfaab.png

 But the 12Z Euro like the 0Z has no TC from this. Also, it isn’t on the 12Z CMC. So, we’ll see. I already noted the 12Z UKMET with it.

 

What does the gefs say for September in terms of the mjo

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On 8/14/2025 at 3:58 PM, BarryStantonGBP said:

DEEPMINDS UPDATE:

Erin expected to peak as a Cat 3-4, safe recurve for the CONUS but Bermuda needs to watch out

"Fernand" remaining a weak TS into TX (98L) and could be a category 1

"Gabrielle" becoming an OTS CV recurver (major)

"Humberto" forms in the WCAR and vomits in the Gulf (major landfall)

 

image.thumb.png.8fab08bc9ccb2e318e0b056247512c1c.pngimage.png.3452da2c8ae317096e67beb433457240.png

Aight never mind it’s Fernand and Gabrielle now with wave 2 coming first or what because 98L took an L

I gotta Check back 

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Just now, LongBeachSurfFreak said:

Heading into peak with above normal water temps in all but the far east MDR anything is possible. 

I’ve been sold all year on the SW Atlantic being the seasonal hot spot. Erin was the first real test and we’re seeing how that’s likely to go…

This won’t be the last time the east coast is watching a major imo, but waves actually have to get to that part of the basin first. 

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0Z UK is similar to the 12Z with a TS N of the Leewards moving WNW:

NEW TROPICAL CYCLONE FORECAST TO DEVELOP AFTER 132 HOURS
FORECAST POSITION AT T+132 : 15.6N 56.6W

LEAD CENTRAL MAXIMUM WIND
VERIFYING TIME TIME POSITION PRESSURE (MB) SPEED (KNOTS)
-------------- ---- -------- ------------- -------------
1200UTC 21.08.2025 132 15.6N 56.6W 1009 26
0000UTC 22.08.2025 144 16.3N 58.8W 1007 32
1200UTC 22.08.2025 156 18.1N 60.9W 1006 37
0000UTC 23.08.2025 168 19.4N 63.3W 1005 38

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1. 2024 (161 ACE) didn’t get 2nd major til late Sep.

2. 2023 (146) didn’t have 1st MH til 8/20.

3. 2021 (146) 1st MH 8/20.

4. 2020 (180) 8/26

5. 2019 (132) 8/30

6. 2018 (133) 9/10

7. 2017 (225) 8/25

8. 2016 (141) 8/30

———

 2025 got 1st MH on 8/16. Seasons with 1st MH by 8/16: 2024, 2008, 2005, 2004, 2000, 1996, 1995…only 7 of last 30 (23%).

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12 minutes ago, GaWx said:

1. 2024 (161 ACE) didn’t get 2nd major til late Sep.

2. 2023 (146) didn’t have 1st MH til 8/20.

3. 2021 (146) 1st MH 8/20.

4. 2020 (180) 8/26

5. 2019 (132) 8/30

6. 2018 (133) 9/10

7. 2017 (225) 8/25

8. 2016 (141) 8/30

———

 2025 got 1st MH on 8/16. Seasons with 1st MH by 8/16: 2024, 2008, 2005, 2004, 2000, 1996, 1995…only 7 of last 30 (23%).

OI THE LASS IS C5 NOW

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25 minutes ago, GaWx said:

1. 2024 (161 ACE) didn’t get 2nd major til late Sep.

2. 2023 (146) didn’t have 1st MH til 8/20.

3. 2021 (146) 1st MH 8/20.

4. 2020 (180) 8/26

5. 2019 (132) 8/30

6. 2018 (133) 9/10

7. 2017 (225) 8/25

8. 2016 (141) 8/30

———

 2025 got 1st MH on 8/16. Seasons with 1st MH by 8/16: 2024, 2008, 2005, 2004, 2000, 1996, 1995…only 7 of last 30 (23%).

Wow

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s2k users yapping, but these are good points

 

 

MarioProtVI
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Re: 2025 Indicators: SST's, MSLP, Shear, SAL, Steering, Instability (Day 16+ Climate Models)

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#517 by MarioProtVI » Sat Aug 16, 2025 10:38 am 

Atlantic beating WPac once again to the punch in getting a Cat 5  :lol:
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Teban54 Category 5
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Re: 2025 Indicators: SST's, MSLP, Shear, SAL, Steering, Instability (Day 16+ Climate Models)

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#518 by Teban54 » Sat Aug 16, 2025 12:33 pm 

Something something cool MDR, something something warm subtropics inducing stability:

(15-day mean chosen to reduce the effects of Erin's cold wake)

Image

Something something inactive deep tropics:

Image
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Re: 2025 Indicators: SST's, MSLP, Shear, SAL, Steering, Instability (Day 16+ Climate Models)

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#519 by Category5Kaiju » Sat Aug 16, 2025 5:56 pm 

To say that I'm concerned about the future of this season is....an understatement.

With Erin already reaching Category 5 status by mid-August and with rumblings of yet another storm originating in the deep tropics in the coming days/weeks that potentially looks to be more of a land threat than Erin, there's no telling what September and October are going to look like. The fact that we're getting such formidable activity in what recently has been a relatively dead period in the Atlantic, combined with the expected -ENSO trend, makes me think that we still have a lot of season left and that Erin may not be the only Category 5 hurricane we see this season.

I know there's been a lot of mixed signals early on this hurricane season, but at this point I think the tropics have really shown how they would like to proceed forward in terms of activity. Buckle up, and be prepared.
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Unless explicitly stated, all info in my posts is based on my own opinions and observations. Tropical storms and hurricanes can be extremely dangerous. Do not think you can beat Mother Nature. Refer to an accredited weather research agency or meteorologist if you need to make serious decisions regarding an approaching storm.
 

 

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2 minutes ago, Low Pressure Lunacy said:

Anyone know if any models say where the yellow zucchini is going to go, fishing or to the gulf? No models posted anywhere yet, I know it is early, but it is coming in lower than Erin it looks like and it has me worried already.

image.thumb.png.c4b71d97a740f721ae5f6e141d7a9882.png

This is the one has my attention. Early indications are mixed about ridging over the Atlantic in time but it is starting at a lower latitude than Erin and very likely will impact the islands more directly than Erin

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Just now, NorthHillsWx said:

This is the one has my attention. Early indications are mixed about ridging over the Atlantic in time but it is starting at a lower latitude than Erin and very likely will impact the islands more directly than Erin

new bread made:

5 minutes ago, BarryStantonGBP said:

 

 

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