ATL: FRANCINE - Remnants - Discussion

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cheezyWXguy
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Re: ATL: FRANCINE - Tropical Storm - Discussion

#441 Postby cheezyWXguy » Mon Sep 09, 2024 6:02 pm

Core is starting to moisten again, higher radar returns starting to show up gradually. If this gets one big burst this evening the naysayers won’t have much to go on.
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Re: ATL: FRANCINE - Tropical Storm - Discussion

#442 Postby WiscoWx02 » Mon Sep 09, 2024 6:06 pm

Blinhart wrote:
WiscoWx02 wrote:The dry air entrainment struggle has begun and will likely continue to plague the system until landfall. Category 1 is the likely ceiling thanks to entrainment. Models have been seeing this more and more today, with the dry air struggle being clearly show on the Euro’s 700-300 hPa Relative Humidity scheme…GFS shows it as well.


Where are you getting all this??? all models are saying Cat 2 is most likely and Cat 3 isn't still out of realm of possibility.


I can't post the model runs for some reason, but both the GFS and ECMWF show a clear bought of dry air entrainment from the WSW of Francine getting into the core, which keeps the strongest precip on the NNE side, which doesn't allow Francine to intensify past roughly 970mb, which is about category 1 intensity typically.
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Re: ATL: FRANCINE - Tropical Storm - Discussion

#443 Postby cheezyWXguy » Mon Sep 09, 2024 6:09 pm

WiscoWx02 wrote:
Blinhart wrote:
WiscoWx02 wrote:The dry air entrainment struggle has begun and will likely continue to plague the system until landfall. Category 1 is the likely ceiling thanks to entrainment. Models have been seeing this more and more today, with the dry air struggle being clearly show on the Euro’s 700-300 hPa Relative Humidity scheme…GFS shows it as well.


Where are you getting all this??? all models are saying Cat 2 is most likely and Cat 3 isn't still out of realm of possibility.


I can't post the model runs for some reason, but both the GFS and ECMWF show a clear bought of dry air entrainment from the WSW of Francine getting into the core, which keeps the strongest precip on the NNE side, which doesn't allow Francine to intensify past roughly 970mb, which is about category 1 intensity typically.

970 is easily cat2, especially for a storm with smaller core
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Re: ATL: FRANCINE - Tropical Storm - Discussion

#444 Postby FLpanhandle91 » Mon Sep 09, 2024 6:17 pm

She has PLENTY of time over the jet fuel Gulf. After Michael, I know nothing is out of the realm of possible.
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Re: ATL: FRANCINE - Tropical Storm - Discussion

#445 Postby NDG » Mon Sep 09, 2024 6:19 pm

WiscoWx02 wrote:
Blinhart wrote:
WiscoWx02 wrote:The dry air entrainment struggle has begun and will likely continue to plague the system until landfall. Category 1 is the likely ceiling thanks to entrainment. Models have been seeing this more and more today, with the dry air struggle being clearly show on the Euro’s 700-300 hPa Relative Humidity scheme…GFS shows it as well.


Where are you getting all this??? all models are saying Cat 2 is most likely and Cat 3 isn't still out of realm of possibility.


I can't post the model runs for some reason, but both the GFS and ECMWF show a clear bought of dry air entrainment from the WSW of Francine getting into the core, which keeps the strongest precip on the NNE side, which doesn't allow Francine to intensify past roughly 970mb, which is about category 1 intensity typically.


Currently dry air is not an issue as shown on the dropsondes dropped by the NOAA recon sampling the atmosphere.
Down the road right before making landfall that's another story and you can't go by the global models' forecasted winds, that's where hurricane models come in thus the NHC calling for Francine to become at least a Cat 2.
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Re: ATL: FRANCINE - Tropical Storm - Discussion

#446 Postby tolakram » Mon Sep 09, 2024 6:20 pm

WiscoWx02 wrote:
Blinhart wrote:
WiscoWx02 wrote:The dry air entrainment struggle has begun and will likely continue to plague the system until landfall. Category 1 is the likely ceiling thanks to entrainment. Models have been seeing this more and more today, with the dry air struggle being clearly show on the Euro’s 700-300 hPa Relative Humidity scheme…GFS shows it as well.


Where are you getting all this??? all models are saying Cat 2 is most likely and Cat 3 isn't still out of realm of possibility.


I can't post the model runs for some reason, but both the GFS and ECMWF show a clear bought of dry air entrainment from the WSW of Francine getting into the core, which keeps the strongest precip on the NNE side, which doesn't allow Francine to intensify past roughly 970mb, which is about category 1 intensity typically.


While a storm is heading toward the coast do not start amateur forecasting something less than the NHC. You are entitled to your opinion but if you're looking at model runs then stick it in the model thread, not in the discussion thread. The Euro and GFS are NOT to be used for intensity.
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Re: ATL: FRANCINE - Tropical Storm - Discussion

#447 Postby MGC » Mon Sep 09, 2024 6:22 pm

Brownsville radar appears to be indicating Francine is moving north now with intact western eyewall......MGC
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Re: ATL: FRANCINE - Tropical Storm - Discussion

#448 Postby Visioen » Mon Sep 09, 2024 6:27 pm

As far as dry air goes:
-NHC stated Francine is in an environment of 'ample moisture'
-GFS and ECMWF are showing dry air intrusion after the shear sets in, not currently
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Re: ATL: FRANCINE - Tropical Storm - Discussion

#449 Postby cheezyWXguy » Mon Sep 09, 2024 6:30 pm

cheezyWXguy wrote:Core is starting to moisten again, higher radar returns starting to show up gradually. If this gets one big burst this evening the naysayers won’t have much to go on.

Ope, here it goes. New burst in the SW eyewall
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Re: ATL: FRANCINE - Tropical Storm - Discussion

#450 Postby underthwx » Mon Sep 09, 2024 6:36 pm

WiscoWx02 wrote:
Blinhart wrote:
WiscoWx02 wrote:The dry air entrainment struggle has begun and will likely continue to plague the system until landfall. Category 1 is the likely ceiling thanks to entrainment. Models have been seeing this more and more today, with the dry air struggle being clearly show on the Euro’s 700-300 hPa Relative Humidity scheme…GFS shows it as well.


Where are you getting all this??? all models are saying Cat 2 is most likely and Cat 3 isn't still out of realm of possibility.


I can't post the model runs for some reason, but both the GFS and ECMWF show a clear bought of dry air entrainment from the WSW of Francine getting into the core, which keeps the strongest precip on the NNE side, which doesn't allow Francine to intensify past roughly 970mb, which is about category 1 intensity typically.

Huh?...thats not what the NHC tells in their 4 pm update....not to be argumentative....I do not understand models...but the NHC clearly says Category 2 hurricane....people do not need to underprepare....just sayin...
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Re: ATL: FRANCINE - Tropical Storm - Discussion

#451 Postby ScottNAtlanta » Mon Sep 09, 2024 6:51 pm

Pressure is down to 997 and they have not reached the center yet
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Re: ATL: FRANCINE - Tropical Storm - Discussion

#452 Postby Owasso » Mon Sep 09, 2024 6:55 pm

991mb
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Re: ATL: FRANCINE - Tropical Storm - Discussion

#453 Postby Sciencerocks » Mon Sep 09, 2024 6:55 pm

Image
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Re: ATL: FRANCINE - Tropical Storm - Discussion

#454 Postby weeniepatrol » Mon Sep 09, 2024 6:58 pm

Owasso wrote:991mb


Image
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Re: ATL: FRANCINE - Tropical Storm - Discussion

#455 Postby Nimbus » Mon Sep 09, 2024 6:59 pm

Owasso wrote:991mb


Moving much slower too, still south of 24N.
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Re: ATL: FRANCINE - Tropical Storm - Discussion

#456 Postby Category5Kaiju » Mon Sep 09, 2024 7:01 pm

Image

I do wonder if Opal from 1995 might be a decent analog for what Francine may become. I don't know about the strength, but the idea of an intense hurricane in the Gulf of Mexico that slowly moves northeastward and starts near the Bay of Campeche while being ventilated by a trough.
Last edited by Category5Kaiju on Mon Sep 09, 2024 7:02 pm, edited 1 time in total.
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Re: ATL: FRANCINE - Tropical Storm - Discussion

#457 Postby Steve » Mon Sep 09, 2024 7:01 pm

tolakram wrote:
WiscoWx02 wrote:
Blinhart wrote:
Where are you getting all this??? all models are saying Cat 2 is most likely and Cat 3 isn't still out of realm of possibility.


I can't post the model runs for some reason, but both the GFS and ECMWF show a clear bought of dry air entrainment from the WSW of Francine getting into the core, which keeps the strongest precip on the NNE side, which doesn't allow Francine to intensify past roughly 970mb, which is about category 1 intensity typically.


While a storm is heading toward the coast do not start amateur forecasting something less than the NHC. You are entitled to your opinion but if you're looking at model runs then stick it in the model thread, not in the discussion thread. The Euro and GFS are NOT to be used for intensity.


Levi noted in his video today where dry air gets in just before landfall (used gfs EC and a hurricane model). It disrupts the inflow or at least the convection on the south side of the system and weights it heavily north. Zeta was a different setup but also didn’t have a back side to it. Just clouds and reverse wind rushing in and that was it. It’s the opposite of Isaac in 2012 which didn’t have a north side to speak of. So maybe leveling off and decaying 6ish hours before landfall Wednesday.

Slightly breezy, cool feel to the air, low cloud cover and occasional very light droplet drizzle in New Orleans today.
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Re: ATL: FRANCINE - Tropical Storm - Discussion

#458 Postby psyclone » Mon Sep 09, 2024 7:02 pm

This is a well organized storm traversing water similar to what Otis took advantage of last fall. While we can hope for dry air or sheer...we should also not discount the potential of rapid intensification which yields a storm stronger than forecast.
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Re: ATL: FRANCINE - Tropical Storm - Discussion

#459 Postby johngaltfla » Mon Sep 09, 2024 7:03 pm

She's getting healthy quick. Hopefully they nail this and the NNE turn happens faster and it picks up forward speed. I do not like this set up for Louisiana at all. Let's see what the early morning runs and recon brings us.
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Re: ATL: FRANCINE - Tropical Storm - Discussion

#460 Postby caneman » Mon Sep 09, 2024 7:06 pm

WiscoWx02 wrote:
Blinhart wrote:
WiscoWx02 wrote:The dry air entrainment struggle has begun and will likely continue to plague the system until landfall. Category 1 is the likely ceiling thanks to entrainment. Models have been seeing this more and more today, with the dry air struggle being clearly show on the Euro’s 700-300 hPa Relative Humidity scheme…GFS shows it as well.


Where are you getting all this??? all models are saying Cat 2 is most likely and Cat 3 isn't still out of realm of possibility.


I can't post the model runs for some reason, but both the GFS and ECMWF show a clear bought of dry air entrainment from the WSW of Francine getting into the core, which keeps the strongest precip on the NNE side, which doesn't allow Francine to intensify past roughly 970mb, which is about category 1 intensity typically.


Last I checked models are notoriously not good at strength yet you come on here repeatedly downcasting. Do you have some type of crystal ball where you can forecast what will happen? In so far as i can tell the storm has been outperforming. Your posts clearly are ones that need a disclaimer.
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