ATL: IRMA - Post-Tropical - Discussion

[hohnywx]

 https://twitter.com/jhomenuk/status/905208926861393921

[znel52]

Holy crap...

which mb level is surface? i always forget lol

[dukeblue219]

Based on the past two recon passes, Irma may be back to being closer to a typical pressure/wind relationship. While still a solid category 5, I'm not seeing anything close to 160 kt anymore.

Yep. Looking more like a "regular" cat 5. Maybe even a cat 4 by morning. Let's see how efficient the EWRC is.

Latest dropsonde transmitted at 7:01pm EDT from NE eyewall:
937mb (Surface) Unavailable
934mb 95° (from the E) 167 knots (192 mph)
932mb 95° (from the E) 173 knots (199 mph)
927mb 100° (from the E) 154 knots (177 mph)
925mb 100° (from the E) 151 knots (174 mph)
918mb 100° (from the E) 173 knots (199 mph)
915mb 100° (from the E) 196 knots (226 mph)

There's no surface measurement but that 192mph is not far off the surface at all (3 mb).

[1900hurricane]

Based on the past two recon passes, Irma may be back to being closer to a typical pressure/wind relationship. While still a solid category 5, I'm not seeing anything close to 160 kt anymore.

Air force plane still has 154 kt SFMR. Irma loves to make me look silly apparently.

*EDIT: plus that ridiculous dropsonde. 00Z best track update will probably only drop down to 155 kt if at all.

[KBBOCA]

 https://twitter.com/DrRickKnabb/status/905207938230439939

[supercane4867]

Did the dropsonde crashed before it reach the surface? Maybe Irma is still a 160kt storm after all.

[Extratropical94]

Holy crap...

https://i.imgur.com/lhP5Lrf.png

which mb level is surface? i always forget lol

937 according to the upper table.

That means 167 kts at 80 ft above ground

[meriland29]

So recon found max winds at around 170, which is 15mph less than previous, land interaction?

[znel52]

So recon found max winds at around 170, which is 15mph less than previous, land interaction?

They found 161kt with SFMR. Still the same intensity..

[AutoPenalti]

So recon found max winds at around 170, which is 15mph less than previous, land interaction?

They found 161kt with SFMR. Still the same intensity..

Land interaction?

[drezee]

That is the strongest drop I can remember since Wilma. Wilma had one that was about the same. I will find it.

[KBBOCA]

 https://twitter.com/philklotzbach/status/905210628297461760




 https://twitter.com/AlexJLamers/status/905206397750665216

[SunnyThoughts]

Holy crap...

which mb level is surface? i always forget lol

Af planes always find different info than noaa...that's why I've been waiting for af

[Exalt]

So recon found max winds at around 170, which is 15mph less than previous, land interaction?

EWRC, but the most recent dropsonde says there was no drop..

[Aric Dunn]

Holy crap...

that is very very near the surface ... ummmm... would they use that ?

[Javlin]

 https://twitter.com/jhomenuk/status/905208926861393921

That would be insane but believable by the presentation Irma has been doing all day.

[ronyan]

Shouldn't surface level be 920 ish

[Extratropical94]

AF center pass - 913.1mb extrapolated

SE quad:
138 kt FL
153 kt SFMR flagged and unflagged (but with very high rain rate)
133 kt SFMR def uncontaminated

[Exalt]

Holy crap...

that is very very near the surface ... ummmm... would they use that ?

They should.. its verifiable.

[SunnyThoughts]

I think they should use it, probably wouldn't take but a few minutes for those winds to drop down to surface, but just my opinion.