ATL: GORDON - Post-Tropical

[CrazyC83]

326
URNT15 KWBC 042321
NOAA2 0607A GORDON HDOB 07 20180904
231200 2833N 08648W 6956 03232 0128 +089 +065 207024 025 038 001 00
231230 2834N 08650W 6960 03228 0125 +089 +076 204023 023 037 001 00
231300 2835N 08652W 6957 03228 0124 +089 +077 208023 024 040 001 00
231330 2837N 08654W 6955 03231 0125 +088 +075 212024 024 040 001 00
231400 2838N 08656W 6957 03226 0117 +092 +089 212022 024 040 003 00
231430 2840N 08657W 6961 03223 0119 +091 +075 209023 024 037 003 00
231500 2841N 08659W 6956 03225 0108 +098 +074 212023 024 036 001 00
231530 2843N 08701W 6957 03225 0114 +093 +079 213024 025 032 002 00
231600 2844N 08702W 6955 03228 0118 +090 +078 215025 026 033 002 00
231630 2846N 08704W 6955 03228 0116 +092 +077 214025 025 031 002 00
231700 2847N 08706W 6955 03228 0113 +095 +076 213026 026 032 002 00
231730 2849N 08708W 6956 03226 0109 +096 +080 208025 026 033 001 00
231800 2850N 08709W 6955 03228 0107 +097 +085 211024 024 030 002 00
231830 2852N 08711W 6952 03231 0103 +100 +083 215024 025 031 002 00
231900 2854N 08713W 6955 03225 0101 +104 +055 216026 026 032 001 00
231930 2855N 08715W 6956 03224 0098 +106 +045 218027 028 028 001 00
232000 2857N 08716W 6956 03222 0102 +102 +048 218027 027 028 002 00
232030 2858N 08718W 6959 03218 0099 +103 +046 214027 028 027 001 00
232100 2900N 08720W 6955 03222 0094 +107 +040 222028 028 029 001 00
232130 2901N 08721W 6957 03218 0095 +105 +045 217028 029 029 001 00

[SunnyThoughts]

most of the rain a wind is about to be over for the gulf shores area until the far eastern squall comes in late tonight.


Also no real reason to have recon out there anymore. everything is mostly on shore.

Ed Rappaport from the NHC was on the weather channel about an hour or so ago talking about recon going out to try and find the center, They were talking about the center being hard to see on radar.

[TropicalAnalystwx13]

So NHC has been using radar instead of recon obs. Interesting...

Recon hasn't been in the storm since 17z. They'll be in Gordon shortly though. Using radar obs isn't anything new for storms approaching landfall, although we usually have recon during that time which takes precedence.

Swath of 70-75kt winds on radar (75% or 80% reduction at that level) have moved onshore with the band now, so we'll see what they find.

[jasons2k]

The winds on the west side of the system are also just out of the NE. Looking at buoy reports, I don't see any NW/W or SW winds at all aimed at the center. Just a wide swath of NW winds from the FL. Panhandle all the way into MS/LA. If I didn't have a radar presentation to look it, just going off the wind obs, I'd say this was a frontal system with lots of gales...

[Aric Dunn]

The winds on the west side of the system are also just out of the NE. Looking at buoy reports, I don't see any NW/W or SW winds at all aimed at the center. Just a wide swath of NW winds from the FL. Panhandle all the way into MS/LA. If I didn't have a radar presentation to look it, just going off the wind obs, I'd say this was a frontal system with lots of gales...

yeah all day today the circulation has been elongated to the west with abnormally weak west and Sw winds away from the center.

the low level flow around the large ridge has kept Gordon in check.

[Aric Dunn]

29.7N 87.8W is where I have the center currently.

[MGC]

Just got back from the beach in Pass Christian. Beautiful evening. Wind was starting to pick up a bit...that darn stinging sand. Still thinking old Gordo makes landfall to my east and passes to my north tonight. Everyone stay safe.....MGC

[wx98]

So NHC has been using radar instead of recon obs. Interesting...

Recon hasn't been in the storm since 17z. They'll be in Gordon shortly though. Using radar obs isn't anything new for storms approaching landfall, although we usually have recon during that time which takes precedence.

Swath of 70-75kt winds on radar (75% or 80% reduction at that level) have moved onshore with the band now, so we'll see what they find.

Oh I was talking about this afternoon when the plane was finding ~45 kt and they raised it from 55 to 60 kt. It was pretty clear to me in the data that the plane never found winds to support the NHC, so they were using the radar over recon obs

[CrazyC83]

807
URNT15 KWBC 042331
NOAA2 0607A GORDON HDOB 08 20180904
232200 2903N 08723W 6954 03221 0091 +108 +042 222029 029 028 001 00
232230 2904N 08725W 6956 03217 0082 +113 +040 219029 030 029 001 00
232300 2906N 08726W 6956 03215 0082 +111 +049 216031 032 029 001 00
232330 2907N 08728W 6955 03216 0080 +111 +055 219031 031 030 001 00
232400 2909N 08730W 6955 03216 0083 +107 +058 223030 030 033 001 00
232430 2910N 08731W 6955 03211 0083 +105 +064 232030 031 033 001 00
232500 2912N 08733W 6957 03206 0081 +106 +051 229031 031 035 001 00
232530 2913N 08735W 6956 03208 0080 +105 +052 232030 031 036 001 00
232600 2915N 08736W 6956 03205 0080 +103 +056 234029 031 037 000 00
232630 2916N 08738W 6953 03209 0082 +104 +044 233029 030 038 001 00
232700 2918N 08739W 6954 03207 0068 +112 +042 242031 031 037 001 00
232730 2919N 08741W 6957 03200 0061 +116 +036 242029 030 037 001 00
232800 2921N 08743W 6956 03195 0052 +118 +048 248028 029 034 001 00
232830 2922N 08744W 6956 03194 0055 +112 +066 254030 031 031 001 00
232900 2923N 08746W 6954 03193 0052 +112 +067 255033 035 031 000 00
232930 2925N 08747W 6961 03180 0055 +105 +070 251039 041 032 000 03
233000 2927N 08747W 6956 03181 0042 +111 +073 246034 039 029 001 00
233030 2930N 08747W 6956 03177 0032 +114 +076 245029 031 028 002 00
233100 2932N 08747W 6951 03178 0024 +115 +095 239027 028 029 001 00
233130 2934N 08747W 6955 03169 0008 +125 +082 234026 026 031 001 00

Pressure has definitely dropped...

[SunnyThoughts]

Steady rain here, nothing hard..just steady. I doubt we've had a wind gust over 20 mph. ( About 10 miles NE of Pensacola)

[Aric Dunn]

Just got back from the beach in Pass Christian. Beautiful evening. Wind was starting to pick up a bit...that darn stinging sand. Still thinking old Gordo makes landfall to my east and passes to my north tonight. Everyone stay safe.....MGC

drive through the center when it crosses the coast. always fun to feel the wind switch.

[wx98]

Looks like a slight pressure drop found by recon so far.

[MGC]

WLOX in Biloxi is reporting they expect landfall in Jackson County near Pascagoula. Looking at the radar it appears to have resumed a WNW motion.....MGC

[drezee]

233630 2942N 08750W 6956 03150 9970 +140 +079 356002 008

Recon extrapolation is 997mb

[CrazyC83]

776
URNT15 KWBC 042341
NOAA2 0607A GORDON HDOB 09 20180904
233200 2936N 08747W 6955 03164 0004 +124 +076 231027 028 030 001 00
233230 2939N 08747W 6956 03155 9985 +132 +086 217021 023 025 002 00
233300 2941N 08747W 6954 03154 9975 +134 +096 212016 020 028 001 00
233330 2943N 08747W 6955 03148 9978 +129 +092 165012 012 035 002 00
233400 2945N 08747W 6955 03150 9994 +117 +099 123022 026 036 000 03
233430 2946N 08745W 6957 03154 0006 +112 +099 134030 031 /// /// 03
233500 2945N 08744W 6956 03156 9994 +123 +096 147026 029 /// /// 03
233530 2944N 08746W 6960 03145 9981 +129 +096 155019 023 /// /// 03
233600 2943N 08748W 6954 03150 9972 +135 +088 168008 010 033 002 00
233630 2942N 08750W 6956 03150 9970 +140 +079 356002 008 023 002 00
233700 2942N 08752W 6957 03154 9972 +144 +080 346015 018 017 003 03
233730 2940N 08752W 6956 03160 9981 +138 +101 307012 014 /// /// 03
233800 2939N 08750W 6955 03161 9984 +134 +101 246016 018 /// /// 03
233830 2941N 08748W 6956 03155 9980 +133 +096 216018 019 022 001 00
233900 2942N 08746W 6963 03144 9977 +132 +098 196021 024 029 002 00
233930 2944N 08745W 6957 03151 9985 +127 +100 176024 028 041 002 00
234000 2945N 08743W 6955 03160 9999 +123 +086 161029 030 044 003 00
234030 2947N 08741W 6956 03163 0014 +113 +100 162035 036 047 001 00
234100 2949N 08740W 6956 03169 0021 +113 +085 157038 039 048 003 00
234130 2950N 08738W 6953 03176 0023 +116 +081 148041 041 048 002 00

Pressure 997 mb.

[TropicalAnalystwx13]

Recon found a few things, including that the low-level circulation is aligned with the radar center, and that the pressure has fallen significantly to 997.5mb. 50kt surface winds in the small section they've sampled.

[Jag95]

Over here in west Mobile about 10 miles from the MS line and 10 miles from the coast and I haven't seen a wind gust over 10mph yet. That might change on the eastern side, but it looks like the cloud tops have warmed dramatically over the last couple of hours.

There was one probably around 30mph but back to dead still again. Radar shows that main band still about 10-15 miles to the east so we'll see.

[MississippiWx]

Radar shows storms wrapping around the south side of the circulation. Last ditch effort.

[wxman57]

29.7N 87.8W is where I have the center currently.

On my radar display, the center is at 29.7N, 87.7W (2340z). Oh, recon just found the center. Looks like 87.7W. Not much wind at all around the center.

[hohnywx]

233630 2942N 08750W 6956 03150 9970 +140 +079 356002 008

Recon extrapolation is 997mb

The pressure dropped? Impossible. I thought it was a naked swirl with a light breeze

In all seriousness, it may be making one final effort here to strength into Hurricane Gordon. Glad we have recon in the area.