Hurricane 20L
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Passive Microwave (PMW) Intensity Information Advanced Dvorak Technique Version 9.1 |
--Overpass-- --ARCHER-- Ring Ring Eye BT -Forecast-
Date Time Sat Lat Lon Diam Pct TbDiff Score Meaning Vmax Lat Lon
20231018 213521 SSMISF17 13.8 -51.6 N/A N/A N/A N/A N/A 35.0 13.0 -51.9 Analysis Plot
20231019 054700 AMSR2 13.8 -54.4 N/A N/A N/A N/A N/A 35.0 13.1 -54.0 Analysis Plot
20231019 085635 SSMISF16 13.4 -55.6 N/A N/A N/A N/A N/A 35.0 13.6 -55.2 Analysis Plot
20231019 101142 SSMISF17 13.6 -55.7 257 18% 1.94 -1.94 N/A 45.0 13.6 -55.5 Analysis Plot
20231019 163755 AMSR2 13.3 -55.3 N/A N/A N/A N/A N/A 50.0 13.8 -56.1 Analysis Plot
20231019 195500 SSMISF18 13.3 -56.4 157 19% 0.20 -0.20 N/A 50.0 13.9 -56.5 Analysis Plot
20231019 235121 GMI 13.4 -56.5 112 21% 6.32 -6.32 N/A 50.0 13.9 -56.9 Analysis Plot
20231020 095849 SSMISF17 13.9 -57.9 N/A N/A N/A N/A N/A 50.0 14.2 -58.6 Analysis Plot
20231020 171929 AMSR2 14.1 -58.7 12 25% 0.97 0.97 N/A 60.0 14.3 -58.9 Analysis Plot
20231020 194127 SSMISF18 14.1 -59.0 212 31% 1.94 1.94 N/A 65.0 14.6 -59.2 Analysis Plot
20231020 213410 SSMISF16 14.1 -59.3 N/A N/A N/A N/A N/A 65.0 14.4 -59.3 Analysis Plot
20231020 213414 SSMISF16 14.1 -59.3 N/A N/A N/A N/A N/A 65.0 14.5 -59.5 Analysis Plot
20231021 081702 SSMISF18 14.7 -59.9 N/A N/A N/A N/A N/A 65.0 15.9 -60.5 Analysis Plot
20231021 102425 GMI 15.4 -60.2 23 46% 8.98 8.98 N/A 70.0 15.4 -60.5 Analysis Plot
20231021 192924 SSMISF18 16.0 -60.4 34 11% 9.82 9.82 N/A 75.0 16.6 -61.0 Analysis Plot
20231021 212120 SSMISF16 16.4 -61.4 N/A N/A N/A N/A N/A 75.0 17.1 -61.4 Analysis Plot
20231021 234008 GMI 17.5 -61.5 5 92% 11.23 26.23 >65 kts 75.0 17.3 -61.5 Analysis Plot
20231022 061545 AMSR2 18.2 -61.9 N/A N/A N/A N/A N/A 75.0 18.3 -62.2 Analysis Plot
20231022 080309 SSMISF18 17.6 -61.9 N/A N/A N/A N/A N/A 75.0 18.6 -62.3 Analysis Plot
20231022 095535 SSMISF16 18.3 -62.2 N/A N/A N/A N/A N/A 75.0 18.9 -62.5 Analysis Plot
20231022 111111 SSMISF17 18.5 -62.2 N/A N/A N/A N/A N/A 75.0 19.0 -62.5 Analysis Plot
20231022 170936 AMSR2 19.4 -63.4 12 68% 0.81 0.81 N/A 70.0 19.5 -63.2 Analysis Plot
20231022 211019 SSMISF16 19.8 -63.5 90 24% 0.98 0.98 N/A 70.0 20.2 -63.5 Analysis Plot
20231022 222401 SSMISF17 20.0 -63.5 34 N/A 5.82 5.82 N/A 70.0 20.2 -63.5 Analysis Plot
20231023 101035 GMI 21.3 -63.8 68 19% 4.36 4.36 N/A 70.0 21.5 -64.0 Analysis Plot
20231023 105605 SSMISF17 21.2 -63.6 101 21% 0.79 0.79 N/A 70.0 21.8 -64.0 Analysis Plot
20231023 175252 AMSR2 21.8 -63.8 23 8% 7.54 7.54 N/A 70.0 22.3 -63.7 Analysis Plot
20231023 221108 SSMISF17 22.6 -63.5 34 18% 2.71 2.71 N/A 65.0 22.4 -63.5 Analysis Plot
20231023 232935 GMI 22.7 -63.5 79 50% 2.04 2.04 N/A 65.0 22.5 -63.4 Analysis Plot
20231024 060137 AMSR2 23.3 -62.8 135 39% 0.89 0.89 N/A 65.0 23.3 -62.6 Analysis Plot
20231024 092914 SSMISF16 23.2 -62.6 N/A N/A N/A N/A N/A 65.0 23.9 -62.6 Analysis Plot
20231024 104147 SSMISF17 23.2 -62.5 79 7% 6.94 6.94 N/A 65.0 24.0 -62.5 Analysis Plot
20231024 165850 AMSR2 23.9 -61.7 135 42% 6.42 6.42 N/A 65.0 24.5 -62.0 Analysis Plot
20231024 215807 SSMISF17 24.4 -61.5 46 56% 9.40 9.40 N/A 65.0 24.7 -61.6 Analysis Plot
20231025 102730 SSMISF17 25.6 -59.9 34 100% 43.60 58.60 >65 kts 85.0 26.1 -60.0 Analysis Plot
20231025 174237 AMSR2 27.7 -58.7 N/A N/A N/A N/A N/A 90.0 27.3 -59.1 Analysis Plot
20231025 214507 SSMISF17 28.2 -58.0 N/A N/A N/A N/A N/A 85.0 28.2 -57.8 Analysis Plot
20231027 102702 SSMISF16 31.8 -60.8 34 6% 3.73 3.73 N/A 55.0 32.2 -61.1 Analysis Plot
20231027 173055 AMSR2 32.2 -61.2 46 8% 4.08 4.08 N/A 55.0 32.4 -61.2 Analysis Plot
20231027 214825 SSMISF16 32.2 -60.7 168 7% 2.16 2.16 N/A 55.0 32.6 -61.4 Analysis Plot
20231028 053507 AMSR2 33.1 -60.7 34 36% 6.12 -6.12 N/A 45.0 32.8 -60.9 Analysis Plot
20231028 082036 SSMISF18 32.7 -60.0 57 15% 2.41 -2.41 N/A 45.0 33.0 -60.0 Analysis Plot
20231028 101320 SSMISF16 33.9 -59.8 112 N/A 0.91 -0.91 N/A 45.0 33.1 -59.5 Analysis Plot
20231028 163635 AMSR2 33.4 -58.4 N/A N/A N/A N/A N/A 45.0 33.4 -58.0 Analysis Plot
20231028 194212 SSMISF18 33.0 -57.3 34 N/A 1.93 -1.93 N/A 40.0 33.2 -56.8 Analysis Plot
20231028 213524 SSMISF16 32.9 -56.6 34 N/A 1.33 -1.33 N/A 40.0 33.2 -56.7 Analysis Plot
20231029 080729 SSMISF18 31.4 -52.5 N/A N/A N/A N/A N/A 35.0 32.4 -53.1 Analysis Plot
20231029 100041 SSMISF16 31.8 -52.5 157 12% 2.07 -2.07 N/A 35.0 32.2 -52.5 Analysis Plot
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Legend - Overpass Date/Time are determined from satellite overpass of targeted TC (position determined from Best Track Lat/Lon position). Date is YYYYMMDD and time in HHMMSS (UTC). - Forecast (Best Track) and ARCHER positions (deg) of the TC center at overpass day/time. Positive/Negative: Latitude = North/South Hemisphere; Longitude = Eastern/Western Hemisphere. - BT Vmax is the concurrent ATCF Best Track (BT) wind speed intensity estimate (Vmax) value from either NOAA/National Hurricane Center (NHC) (North Atlantic and Northeast Pacific), NOAA/Central Pacific Hurricane Center (CPHC) (North-central Pacific) or Joint Typhoon Warning Center (JTWC) (Northwest Pacific, Indian Ocean, or Southwest Pacific). - Sat is the satellite descriptor providing the overpass. Currently the satellites used are the DMSP/SSMIS-16/17/18, GPM/GMI, and GCOM/AMSR2. - Ring Diam (km) indicates the estimated surface eyewall diameter if one is analyzed in the PMW imagery. The value listed is the average PMW-estimated inner eyewall edge diameter minus 10 km for eyewall slope. N/A indicates no appreciable eyewall is analyzed. - Ring Pct is the percentage of the analyzed "ring" (eyewall inner boundary) that is 1) colder than the eye Tb (the "hot spot" -- warmest eye pixel) by at least 20K, or 2) that is colder than 232K and colder than the eye Tb by 10K, whichever is greater. Values are red if Ring % ≤65,yellow/brown if Ring % ≤85 and green if Ring % >85. N/A indicates no appreciable eyewall is analyzed. A value over 85% is used in the intensity score by adding 15 points to it. - TbDiff is the difference between the warmest eye pixel and the warmest pixel on the eyewall. This value is used in the Intensity Score. N/A indicates no appreciable eyewall is analyzed. - Eye Score values are based on the strength and organization of the convective/eyewall signatures in the PMW imagery, and based on the ARCHER center location. They normally range from 0 to 100 with empirically-determined thresholds related to intensity (Vmax) in the "Meaning" column (≥20 suggests ≥65kts; ≥60 suggests ≥85kts). Scores are listed as negative, and not used by the ADT, when the NHC, CPHC, or JTWC Best Track Vmax is <55 kts in order to filter out occasional "false eye" cases. A value of -920 is used when the warmest eye pixel is <200K to prevent false positives; -930 means edge of overpass and <85% of eyewall is captured and therefore can't fully be analyzed. |
