ATL: HELENE - Post-Tropical - Discussion

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jasons2k
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Re: ATL: HELENE - Hurricane - Discussion: Breaking news= Helene is a major hurricane=120 mph

#2861 Postby jasons2k » Thu Sep 26, 2024 2:27 pm

Pipelines182 wrote:
PavelGaborik10 wrote:
Pipelines182 wrote:
Steinhatchee is NOT forecasted to get 20+ storm surge, please don't spread false information, their forecast is 10-15. The areas with the highest surge potential (20+) are in the swamp, there's no civilization there.

10'-15' is still a very big deal though!


...current forecast for the Steinhatchee region is 15-20+ foot storm surge.


Steinhatchee is near the suwannee which is 10-15, and they aren't even on the coast, they're on the river, and that river isn't angled correctly to drive maximum surge with a storm landfalling in this direction. In no way shape or form is their forecast for 20+.

Below is the official statement from this morning. It clearly states 16-20ft. Might go up before landfall. You are close to earning a vacation from here.

STORM SURGE WARNING
NWS TALLAHASSEE FL
1109 AM EDT THU SEP 26 2024

FLZ128-262315-
/O.CON.KTAE.SS.W.1009.000000T0000Z-000000T0000Z/
1109 AM EDT THU SEP 26 2024
Coastal Taylor-

...HURRICANE WARNING REMAINS IN EFFECT...
...STORM SURGE WARNING REMAINS IN EFFECT...

* LOCATIONS AFFECTED
- Keaton Beach
- Steinhatchee

* WIND
- LATEST LOCAL FORECAST: Equivalent Cat 2 Hurricane force wind
- Peak Wind Forecast: 90-110 mph with gusts to 125 mph
- Window for Tropical Storm force winds: until early Friday
morning
- Window for Hurricane force winds: early this evening until
early Friday morning

- THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST
UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for wind
greater than 110 mph
- The wind threat has increased from the previous assessment.
- PLAN: Plan for extreme wind of equivalent CAT 3 hurricane
force or higher.
- PREPARE: Last minute efforts should solely focus on
protecting life. The area remains subject to catastrophic
wind damage.
- ACT: Now is the time to shelter from life-threatening wind.
Be ready to move to the safest place inside your shelter if
necessary.

- POTENTIAL IMPACTS: Unfolding
- Potential impacts from the main wind event are unfolding.

* STORM SURGE
- LATEST LOCAL FORECAST: Life-threatening and historic storm
surge possible
- Peak Storm Surge Inundation: The potential for 16-20 feet
above ground somewhere within surge prone areas
- Window of concern: through Friday morning

- THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST
UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for storm
surge flooding greater than 9 feet above ground
- The storm surge threat has remained nearly steady from the
previous assessment.
- PLAN: Shelter against extreme life-threatening storm surge
flooding greater than 9 feet above ground.
- PREPARE: All ordered evacuations should be complete.
Evacuees should be in shelters well away from storm surge
flooding.
- ACT: Remain sheltered in a safe location. Do not venture
outside. Move to upper floors to escape rising water if
necessary.

- POTENTIAL IMPACTS: Unfolding
- Potential impacts from the main surge event are unfolding.

* FLOODING RAIN
- LATEST LOCAL FORECAST: Flood Watch is in effect
- Peak Rainfall Amounts: Additional 2-4 inches, with locally
higher amounts

- THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST
UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for extreme
flooding rain
- The flooding rain threat has remained nearly steady from
the previous assessment.
- PLAN: Emergency plans should include the potential for
extreme flooding from heavy rain. Evacuations and rescues
are likely.
- PREPARE: Urgently consider protective actions from extreme
and widespread rainfall flooding.
- ACT: Heed any flood watches and warnings. Failure to take
action will likely result in serious injury or loss of life.

- POTENTIAL IMPACTS: Devastating to Catastrophic
- Extreme rainfall flooding may prompt numerous evacuations
and rescues.
- Rivers and tributaries may overwhelmingly overflow their
banks in many places with deep moving water. Small streams,
creeks, and ditches may become raging rivers. Flood control
systems and barriers may become stressed.
- Flood waters can enter numerous structures within multiple
communities, some structures becoming uninhabitable or
washed away. Numerous places where flood waters may cover
escape routes. Streets and parking lots become rivers of
raging water with underpasses submerged. Driving conditions
become very dangerous. Numerous road and bridge closures
with some weakened or washed out.

* TORNADO
- LATEST LOCAL FORECAST: Tornado Watch is in effect
- Situation is favorable for tornadoes

- THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST
UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for several
tornadoes
- The tornado threat has remained nearly steady from the
previous assessment.
- PLAN: Emergency plans should continue to include the
potential for several tornadoes.
- PREPARE: Stay within your shelter keeping informed of the
latest tornado situation.
- ACT: Move quickly to the safest place within your shelter
if a tornado warning is issued.

- POTENTIAL IMPACTS: Significant
- The occurrence of scattered tornadoes can hinder the
execution of emergency plans during tropical events.
- Several places may experience tornado damage with a few
spots of considerable damage, power loss, and
communications failures.
- Locations could realize roofs torn off frame houses, mobile
homes demolished, boxcars overturned, large trees snapped
or uprooted, vehicles tumbled, and small boats tossed
about. Dangerous projectiles can add to the toll.

* FOR MORE INFORMATION:
- Local Weather Conditions and Forecasts: NWS Tallahassee
- https://www.weather.gov/tallahassee
- Information from the Florida Division of Emergency Management
- https://www.floridadisaster.org
- Information from Taylor County Emergency Management
- http://www.taylorcountyem.com
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Re: ATL: HELENE - Hurricane - Discussion: Breaking news= Helene is a major hurricane=120 mph

#2862 Postby eastcoastFL » Thu Sep 26, 2024 2:27 pm

ScottNAtlanta wrote:
Charleswachal wrote:
aspen wrote:Wonder what recon’s doing, if they’re gonna go back in for another center pass or if they’re trying to map out the extent of hurricane-force winds.


Looks like they are trying to sample the NE quad which is the strongest quad normally. This should give us the highest wind readings yet

I'll say that this wind field is MASSIVE


I’m 278 miles from the center right now with 50mph gusts at the moment. Pretty insane.
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Re: ATL: HELENE - Hurricane - Discussion: Breaking news= Helene is a major hurricane=120 mph

#2863 Postby ROCK » Thu Sep 26, 2024 2:27 pm

ScottNAtlanta wrote:
Charleswachal wrote:
aspen wrote:Wonder what recon’s doing, if they’re gonna go back in for another center pass or if they’re trying to map out the extent of hurricane-force winds.


Looks like they are trying to sample the NE quad which is the strongest quad normally. This should give us the highest wind readings yet

I'll say that this wind field is MASSIVE



going in for another center pass it looks like to me...those are some serious flt winds..tad bumpy up there. :eek:
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Re: ATL: HELENE - Hurricane - Discussion: Breaking news= Helene is a major hurricane=120 mph

#2864 Postby WaveBreaking » Thu Sep 26, 2024 2:27 pm

Lightning flaring up on mesoscale

Image
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Re: ATL: HELENE - Hurricane - Discussion

#2865 Postby Teban54 » Thu Sep 26, 2024 2:29 pm

Can't remember when was the last time recon measured hurricane-force FL winds during the entire turnaround between center passes.

Image
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Re: ATL: HELENE - Hurricane - Discussion: Breaking news= Helene is a major hurricane=120 mph

#2866 Postby jdjaguar » Thu Sep 26, 2024 2:29 pm

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Re: ATL: HELENE - Hurricane - Discussion

#2867 Postby Travorum » Thu Sep 26, 2024 2:29 pm

Once again the HDOB cuts off right before entering the eye, but the last row has 956.2mb even with 60kts FL wind and 85kt SFMR.
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Re: ATL: HELENE - Hurricane - Discussion

#2868 Postby eastcoastFL » Thu Sep 26, 2024 2:30 pm

She’s movin 20MPH right now and strengthening at a rapid pace towards swampland. They’re going to be feeling hurricane force winds deep into north Florida and parts of GA…
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Re: ATL: HELENE - Hurricane - Discussion

#2869 Postby ROCK » Thu Sep 26, 2024 2:31 pm

saw that 956 she is making a run at Cat 4 if the winds can catch up...
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Re: ATL: HELENE - Hurricane - Discussion

#2870 Postby SecondBreakfast » Thu Sep 26, 2024 2:31 pm

https://www.instagram.com/reel/DAY_0mdSONX/?igsh=Nnpza3J6YmZlOG1h

Reed discussing Fujiwhara and the wobble on Instagram
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Re: ATL: HELENE - Hurricane - Discussion

#2871 Postby Travorum » Thu Sep 26, 2024 2:31 pm

eastcoastFL wrote:She’s movin 20MPH right now and strengthening at a rapid pace towards swampland. They’re going to be feeling hurricane force winds deep into north Florida and parts of GA…


I still can't believe there's a hurricane warning as far inland as Macon.
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Re: ATL: HELENE - Hurricane - Discussion: Breaking news= Helene is a major hurricane=120 mph

#2872 Postby PavelGaborik10 » Thu Sep 26, 2024 2:33 pm

jdjaguar wrote:
Pipelines182 wrote:
PavelGaborik10 wrote:
...current forecast for the Steinhatchee region is 15-20+ foot storm surge.


Steinhatchee is near the suwannee which is 10-15, and they aren't even on the coast, they're on the river, and that river isn't angled correctly to drive maximum surge with a storm landfalling in this direction. In no way shape or form is their forecast for 20+.

https://www.nhc.noaa.gov/refresh/graphi ... e#contents

can we please move on?


It's kind of absurd that somebody would start an argument about something that he clearly hasn't taken 2 minutes of his time to look into.

Steinhatchee is west of Suwanee, areas to the east or Suwanee are forecast for 10-15 while Suwanee and areas west and forecast 15-20.

Arguing for the sake of arguing is wild
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Re: ATL: HELENE - Hurricane - Discussion

#2873 Postby NDG » Thu Sep 26, 2024 2:35 pm

63 mph wind gust in Sarasota/Bradenton Airport with winds still offshore and just light rain a few minutes ago.

Sep 26, 3:05 pm 86 73 66 93 SE 40G63 10.00 Lt rain
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Re: ATL: HELENE - Hurricane - Discussion: Breaking news= Helene is a major hurricane=120 mph

#2874 Postby Majek » Thu Sep 26, 2024 2:37 pm

HurricaneBelle wrote:
jdjaguar wrote:
Pipelines182 wrote:https://www.nhc.noaa.gov/refresh/graphi ... e#contents

can we please move on?


been making liberal use of the "foe" button today

Amen to that! I usually just read for my own education and safety. Opportunity to thank all who post with useful information and do not bicker! This site has been great for a Montana transplant's tropical storm education. Moved down north of Pensacola in 2017.
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Re: ATL: HELENE - Hurricane - Discussion: Breaking news= Helene is a major hurricane=120 mph

#2875 Postby lovingseason2013 » Thu Sep 26, 2024 2:37 pm

HurricaneBelle wrote:
jdjaguar wrote:
Pipelines182 wrote:https://www.nhc.noaa.gov/refresh/graphi ... e#contents

can we please move on?


been making liberal use of the "foe" button today

Sorry for this off-topic post, but that is a great reminder for newbies and the OG on here, instead of arguing and such, just go to the posters profile and hit the foe button. As for on-topic posting, my friend in Port Charlotte on a canal, has said the water is up about 2 feet from normal and high tide isn't until 11:34PM, so Charlotte County is going to see some inundation tonight.
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Re: ATL: HELENE - Hurricane - Discussion

#2876 Postby Travorum » Thu Sep 26, 2024 2:38 pm

951.7mb, 6mb/hr rate of deepening according to extrap :double:
Last edited by Travorum on Thu Sep 26, 2024 2:39 pm, edited 1 time in total.
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Re: ATL: HELENE - Hurricane - Discussion

#2877 Postby tulum07 » Thu Sep 26, 2024 2:38 pm

36/56 mph, light rain here in Boca Raton, FL.
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Re: ATL: HELENE - Hurricane - Discussion

#2878 Postby Teban54 » Thu Sep 26, 2024 2:39 pm

Travorum wrote:951.8mb, 6mb/hr rate of deepening :double:

Let's wait for the eye drop since the extrap pressure can sometimes be a bit too low... But yeah, either way she's really bombing out now.

NE quad interestingly has slightly weaker winds than E, but there's probably undersampling given Helene's size.
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Re: ATL: HELENE - Hurricane - Discussion

#2879 Postby NDG » Thu Sep 26, 2024 2:40 pm

Wow, big drop in extrap pressure.

AF308 1609A HELENE HDOB 44 20240926
192630 2713N 08440W 6961 02775 9540 +163 +145 146053 060 078 003 00
192700 2712N 08441W 6969 02761 9528 +170 +145 154042 049 062 002 00
192730 2711N 08443W 6966 02758 9521 +173 +135 154036 040 043 002 03
192800 2710N 08444W 6964 02755 9518 +171 +129 150029 033 038 001 00
192830 2710N 08446W 6967 02750 9519 +167 +134 146026 027 /// /// 03
192900 2711N 08446W 6983 02731 9521 +168 +136 147028 030 /// /// 03
192930 2710N 08446W 6985 02727 9522 +169 +120 148024 027 /// /// 03
193000 2709N 08447W 6964 02752 9517 +171 +116 152017 022 025 002 00
193030 2708N 08449W 6951 02769 9520 +168 +116 164014 015 021 000 00
193100 2708N 08451W 6953 02766 9517 +171 +110 174013 014 018 002 00
193130 2707N 08453W 6959 02758 9519 +167 +117 180012 013 015 002 00
193200 2707N 08455W 6961 02757 9524 +164 +124 172004 010 018 001 00
193230 2707N 08457W 6965 02758 9533 +160 +129 004007 013 017 001 00
193300 2708N 08458W 6971 02757 9531 +170 +119 330013 015 020 001 00
193330 2710N 08458W 6968 02760 9530 +171 +118 347006 010 022 001 00
193400 2712N 08458W 6957 02778 9540 +162 +128 025006 007 026 001 00
193430 2713N 08458W 6959 02780 9558 +149 +132 056012 015 026 004 00
193500 2715N 08458W 6966 02777 9579 +133 +130 059018 021 026 005 00
193530 2717N 08458W 6958 02792 9573 +147 +127 058026 028 037 005 00
193600 2719N 08458W 6962 02789 //// +123 //// 062025 030 051 010 01
$$
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Re: ATL: HELENE - Hurricane - Discussion: Breaking news= Helene is a major hurricane=120 mph

#2880 Postby underthwx » Thu Sep 26, 2024 2:40 pm

eastcoastFL wrote:
ScottNAtlanta wrote:
Charleswachal wrote:
Looks like they are trying to sample the NE quad which is the strongest quad normally. This should give us the highest wind readings yet

I'll say that this wind field is MASSIVE


I’m 278 miles from the center right now with 50mph gusts at the moment. Pretty insane.

You are on the eastern coast of Florida?...
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