Re: change notice from Feb
Posted by
Chris in Tampa on 4/22/2018, 4:22 pm
I thought I checked more recently. It seems I might have last checked at the end of January.
I see that there will likely be some changes to the HWRF and HMON models too:
http://www.nws.noaa.gov/os/notification/pns18-03hwrf_hmon.htm
I agree with everything Eric Blake said in that presentation:
"- Last leg leaving a hurricane notorious for finding the maximum winds
- Yet, no SFMR or outbound flight-level winds in message unless added in remarks
- Can't easily parse a freeform section, so must be manually entered
- Also center dropsonde wind needed for pressure estimates, only in remarks
- Standardized format needed to make the messages easily parsable"
A vortex message previously only recorded inbound winds in the lettered part of the vortex message. That is when the aircraft is traveling from the outside of the storm (or wherever they turn) to the eye. Wind from the outbound leg, from the eye back to the outside of the storm, was only reported in the remarks section. When you have a system like mine trying to determine what was the highest wind in that vortex message, I had to search through the comments and try to automatically determine what was the highest wind. It was doable, but not always possible if there was anything not standard about the comment that contained the wind. I also tried to decode the other remarks in the remarks section, such as the center dropsonde wind. If the wind is 10 knots in the center, the center might have slightly been missed by the sonde, so the pressure might be about 1 mb lower than what was recorded. 20 knots, maybe about 2mb. If the center of a well developed hurricane was hit directly, the wind should be near calm. That is really important information too.
Vortex messages are sometimes updated shortly after they are posted, so that will likely continue. Hopefully they continue to post what they have when they have it. Just as soon as possible after leaving the eye, they might post the inbound information and leave the outbound information out until they have it. Then update the vortex when they have it. Then again, this might be more easy for them to not have to do comments. Maybe by the time they the sonde information from the center, if they launched it and get data from the surface, they will already have the outbound wind automatically inserted. If there was a double wind maximum and they encountered even higher winds in a second eyewall they could always update the vortex again if the outbound winds were higher than what they might initially report. But for the possibility of that circumstance, they might continue to wait a bit until they know they should have encountered the highest winds on the outbound leg.
Looking at other presentation on the page you posted, I see in this one:
https://www.ofcm.gov/meetings/TCORF/ihc18/session_1/1-4-aoc.pdf
"2017 Challenges"
"Only one P-3 available for entire season"
"Looking Ahead 2018 - 2019"
"Return of N43RF for 2019 Season"
Looks like only one of the NOAA P-3 aircraft for this season too.
Also of interest, "Transmit BUFR Data". That is a meteological file format. I wonder what data they might also have there. I download Euro model data from the ECMWF in that file format, so I am a bit familiar with parts of it.
And in another presentation I see:
https://www.ofcm.gov/meetings/TCORF/ihc18/session_8/8-3-aoc.pdf
"Multimode Radar (MMR) replacement for LF Radar
- Surface roughness, SAR, ISAR, StripSAR in addition to Wx
- CfRadial data format
- Installation scheduled for May 2018
- AOC will modify L/F capture software for new system"
I get radar data from the NOAA hurricane hunters lower fuselage (lf) radar. If they are installing a new one in May, I don't know if I'll be able to get that data still. I'll have to keep an eye on that. I won't know until radar images are released after that point during a mission. I would imagine I will need to make some updates. (assuming hopefully imagery is still avalable)
Meanwhile in the Air Force presentation for 2018:
https://www.ofcm.gov/meetings/TCORF/ihc18/session_8/8-6-woods.pdf
"Technological Improvements for the near future"
"Radar transmission ("14) 3-5 years"
I assume that is transmission to the NHC. Not sure what the "14" part is. Maybe when it was first planned? Don't know. |
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