Re: CIMSS / SSEC Weather Briefing 10/23/2015 Patricia
Posted by Chris in Tampa on 10/28/2015, 9:31 am
That sonde I labeled as B might not have landed in the absolute strongest winds. Being so small, it might have been a little nearer to the eye than where the higher SFMR values were. A fraction of a mile would be all it would take to drop a lot. So the SFMR value might be more accurate. But all below cat 5 strength at the surface level.

SFMR - 10 second surface estimate from aircraft
Sonde - Measured momentary gust (maybe a half or quarter second)



That's a browser issue at TropicalTidbits. I guess I should test my websites one day in Apple Safari. I don't think I want to know. Chrome, Firefox, Internet Explorer, Safari, Opera, Edge. Too many browsers, many with their own quirks. And then there is mobile too, which brings its own set of problems. I can't wait for older versions of Internet Explorer to become more and more obsolete.

I was taking a look at more raw sonde data. Here is the record sonde for anyone who wants to view the raw data:
http://tropicalatlantic.com/temp/2015/10-28/D20151023_173316_P.3.txt

The end section:

AVAPS-T03 COM            UTC     UTC       Air    Air     Rel   Wind   Wind   Vert      GPS        GPS     Geopoten GPS  Sonde  Sonde GPS Wind    GPS  
AVAPS-T03 COM   Sonde    Date    Time     Press   Temp   Humid  Dir    Spd    Veloc  Longitude   Latitude  Altitude Wnd   RH1    RH2  Snd Error Altitude
AVAPS-T03 COM    ID     yymmdd hhmmss.ss   (mb)  (degC)   (%)   (deg)  (m/s)  (m/s)    (deg)       (deg)      (m)   Sat   (%)    (%)  Sat (m/s)    (m)  
AVAPS-T03 COM --------- ------ --------- ------- ------ ------ ------ ------ ------ ----------- ---------- -------- --- ------ ------ --- ----- --------
AVAPS-D03 S00 143425114 151023 173553.00  880.67  27.43  81.29 190.17  25.15 -10.51 -105.253383  18.174329     7.45  12  81.29  80.47  12  0.21    30.19
AVAPS-D03 S10 143425114 151023 173553.25 9999.00  99.00 999.00 190.52  25.20 -10.43  999.000000  99.000000 99999.00  13 999.00 999.00  13  0.21 99999.00
AVAPS-D03 S00 143425114 151023 173553.50  881.21  27.45  83.33 189.62  24.97 -10.53 -105.253362  18.174440     2.00  13  83.33  82.50  13  0.22    24.99
AVAPS-D03 S10 143425114 151023 173553.75 9999.00  99.00 999.00 189.66  24.62 -10.68  999.000000  99.000000 99999.00  13 999.00 999.00  13  0.21 99999.00
AVAPS-D03 S00 143425114 151023 173554.00  881.84  27.47  82.76 188.28  24.69 -10.46 -105.253344  18.174551    -4.37  13  82.76  83.06  13  0.25    19.70
AVAPS-D03 S10 143425114 151023 173554.25 9999.00  99.00 999.00 187.96  24.10 -10.34  999.000000  99.000000 99999.00  13 999.00 999.00  13  0.34 99999.00
AVAPS-D03 S00 143425114 151023 173554.50  882.07  27.53  85.20 185.43  23.32  -9.95 -105.253329  18.174658    -6.79  13  85.20  84.52  13  0.36    14.59


MSLP: 882.07mb at GPS altitude of 14.59 meters.
Surface Wind: 23.32 m/s (45.33 knots)

I guess that would make the surface around 883.5mb. Although, I wonder where pressure is measured normally on land. 10 meters? If at around 0 meters then I guess 879mb is a good estimate. (usually assuming about 1 mb lower at center per about 10 knots of surface wind, to try to account for missing the exact calmness of the center) If it were 10 meters where you measure it, then it could be 878mb perhaps.
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CIMSS / SSEC Weather Briefing 10/23/2015 Patricia - cypresstx, 10/26/2015, 9:28 am
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