ATL: ISAIAS - Post-Tropical - Discussion

[ScottNAtlanta]

95.5 mph gust on frying pan tower - wow! That instrument is 135 ft above the water. Heaviest wind still to come. Averaging 77 mph.

If the hurricane is moving towards you at 15 mph, do you add that to the wind speed?

[aspen]

I’m getting worried this trough interaction responsible for Isaias’ intensification to 85 mph will keep it a 60-65 mph tropical storm once it gets up to Connecticut. It doesn’t help that I’ll be on the western side of the eye, the same side with those 117 kt FL measurements. Gusts could be quite nasty...at least it’ll be moving rather fast and won’t stick around as long as Sandy.

[ScottNAtlanta]

Wind gusts associated with the extratropical-like sting jet feature are much higher than sustained winds. The wind damage potential here is much worse than a deep tropical CAT1 like Hanna.

What exactly is a "sting jet"?

I looked it up and it doesn't seem likely in a warm core system at all

https://en.wikipedia.org/wiki/Sting_jet

[ScottNAtlanta]

I’m getting worried this trough interaction responsible for Isaias’ intensification to 85 mph will keep it a 60-65 mph tropical storm once it gets up to Connecticut. It doesn’t help that I’ll be on the western side of the eye, the same side with those 117 kt FL measurements. Gusts could be quite nasty...at least it’ll be moving rather fast and won’t stick around as long as Sandy.

I would definitely be prepared for some time without power...make sure everything that needs to be charged is charged.

[wx98]

Wind gusts associated with the extratropical-like sting jet feature are much higher than sustained winds. The wind damage potential here is much worse than a deep tropical CAT1 like Hanna.

What exactly is a "sting jet"?

https://en.m.wikipedia.org/wiki/Sting_jet

[NXStumpy_Robothing]

I would like to start a petition to the NHC to remove all names on their rotating lists starting with the letter I.

[BensonTCwatcher]

95.5 mph gust on frying pan tower - wow! That instrument is 135 ft above the water. Heaviest wind still to come. Averaging 77 mph.

If the hurricane is moving towards you at 15 mph, do you add that to the wind speed?

No that wind speed is measured so it’s as it reads

[supercane4867]

https://twitter.com/iCyclone/status/1290464235814879232?s=19

Josh is going to miss the strongest winds if he doesn’t start heading NE.

[terstorm1012]

Wind gusts associated with the extratropical-like sting jet feature are much higher than sustained winds. The wind damage potential here is much worse than a deep tropical CAT1 like Hanna.

What exactly is a "sting jet"?

it is is a meteorological phenomenon that forms as a part of some rapidly developing mid-latitude storms. The 'sting' part of the name refers to the scorpion's tail like shape that the clouds around a sting jet take on. The sting jet contains the most damaging winds, which can reach speeds of more than 100 mph.

A good example is the Great Storm of 1987 that shellacked southern England on October 17 of that year

[tolakram]

[ScottNAtlanta]

I would like to start a petition to the NHC to remove all names on their rotating lists starting with the letter I.

No need...they are gonna run out soon

[BensonTCwatcher]

I’m measuring the eye at 30 mi. That’s a bit tighter than it’s been. Will be on shore soon between little river and oak island.

[ScottNAtlanta]

96kt flt lvl just off shore southern tip of NC Oak Island

[Kazmit]

96kt flight level winds just reported...

[supercane4867]

Wind gusts associated with the extratropical-like sting jet feature are much higher than sustained winds. The wind damage potential here is much worse than a deep tropical CAT1 like Hanna.

What exactly is a "sting jet"?

https://en.m.wikipedia.org/wiki/Sting_jet

Better article with graphics:

https://blog.weather.us/intensifying-no ... afternoon/

[sikkar]

http://www.surfchex.com/cams/oak-island-north-carolina/

intense

[aspen]

Pressure took a nosedive to 984 mbar extrapolated, might be a little lower.

[tolakram]

015100 3341N 07808W 6968 03048 9943 +109 +109 183054 062 070 017 00
015130 3340N 07809W 6971 03038 9938 +110 +110 183049 053 068 011 03
015200 3339N 07811W 6964 03043 9920 +109 //// 182043 046 070 009 01
015230 3339N 07813W 6965 03038 9911 +112 //// 182047 052 071 010 01
015300 3339N 07815W 6972 03026 9894 +116 //// 183036 042 070 009 01
015330 3339N 07817W 6970 03026 9883 +119 //// 186035 035 063 004 01
015400 3339N 07819W 6963 03032 //// +120 //// 186034 035 056 002 01
015430 3339N 07822W 6967 03025 //// +118 //// 187033 034 048 001 01
015500 3339N 07824W 6967 03023 9860 +124 +119 184030 031 044 001 00
015530 3339N 07826W 6965 03025 9847 +136 +116 189026 030 040 001 00
015600 3340N 07828W 6965 03023 9837 +145 +110 192023 025 030 000 00
015630 3340N 07830W 6966 03022 9838 +145 +107 193019 022 028 000 00

[tolakram]

983.7 with 25kts wind

[supercane4867]

Probably running out of time for additional strengthening in terms of winds, but pressure may continue to deepen over land with baroclinic forcing.