Tropical Depression 09W
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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
20230823 213226 SSMISF16 20.2 124.6 168 8% 0.77 -0.77 N/A 25.0 19.9 125.1 Analysis Plot
20230824 044814 GMI 20.3 124.6 23 31% 1.74 -1.74 N/A 35.0 20.4 124.7 Analysis Plot
20230824 065500 SSMISF18 20.5 124.4 68 12% 5.54 -5.54 N/A 40.0 20.6 124.4 Analysis Plot
20230824 084642 SSMISF16 20.5 124.3 57 4% 7.31 -7.31 N/A 45.0 20.5 124.5 Analysis Plot
20230824 192707 SSMISF18 19.8 124.1 68 61% 17.18 -17.18 N/A 45.0 20.4 123.9 Analysis Plot
20230824 211922 SSMISF16 19.8 124.1 46 100% 26.49 -41.49 N/A 45.0 20.0 123.8 Analysis Plot
20230825 035523 GMI 19.5 123.6 N/A N/A N/A N/A N/A 55.0 19.7 124.1 Analysis Plot
20230825 045907 AMSR2 19.7 124.1 12 86% 9.68 24.68 >65 kts 55.0 19.6 124.1 Analysis Plot
20230825 083408 SSMISF16 19.6 123.6 23 83% 8.39 8.39 N/A 65.0 19.5 124.0 Analysis Plot
20230825 101352 SSMISF17 19.5 123.8 23 88% 16.06 31.06 >65 kts 90.0 19.2 123.7 Analysis Plot
20230825 171034 AMSR2 19.0 123.4 23 78% 12.84 12.84 N/A 95.0 18.9 123.6 Analysis Plot
20230825 210702 SSMISF16 18.6 123.3 5 76% 5.00 5.00 N/A 95.0 18.7 123.3 Analysis Plot
20230825 224718 SSMISF17 18.4 123.4 5 93% 6.93 21.93 >65 kts 95.0 18.6 123.2 Analysis Plot
20230826 095928 SSMISF17 17.8 123.1 23 100% 26.01 41.01 >65 kts 105.0 17.6 123.4 Analysis Plot
20230826 142806 GMI 17.3 123.0 23 100% 44.65 59.65 >65 kts 110.0 17.3 123.2 Analysis Plot
20230826 175416 AMSR2 17.1 122.9 23 100% 48.07 63.07 >85 kts 120.0 17.0 123.3 Analysis Plot
20230826 223336 SSMISF17 16.7 123.1 23 100% 51.19 66.19 >85 kts 120.0 17.0 123.2 Analysis Plot
20230827 034506 GMI 16.6 123.0 23 100% 32.52 47.52 >65 kts 115.0 16.8 123.1 Analysis Plot
20230827 044650 AMSR2 16.5 123.0 23 100% 31.48 46.48 >65 kts 115.0 16.8 123.2 Analysis Plot
20230827 075442 SSMISF18 16.5 123.1 12 100% 41.19 56.19 >65 kts 115.0 16.5 123.2 Analysis Plot
20230827 094544 SSMISF17 16.5 123.0 12 100% 30.55 45.55 >65 kts 125.0 16.5 123.5 Analysis Plot
20230827 165946 AMSR2 16.0 123.7 12 100% 32.90 47.90 >65 kts 110.0 16.4 123.7 Analysis Plot
20230827 221959 SSMISF17 16.4 124.3 212 19% 6.39 6.39 N/A 105.0 16.4 124.1 Analysis Plot
20230828 052955 AMSR2 17.4 124.3 5 100% 40.52 55.52 >65 kts 115.0 17.3 124.5 Analysis Plot
20230828 074125 SSMISF18 17.8 124.2 5 18% 0.72 -920.0 N/A 115.0 17.4 124.5 Analysis Plot
20230828 093541 SSMISF16 18.0 124.1 23 50% 1.84 1.84 N/A 115.0 17.9 124.3 Analysis Plot
20230828 141659 GMI 18.0 124.0 101 100% 24.43 39.43 >65 kts 90.0 18.2 124.0 Analysis Plot
20230828 174103 AMSR2 18.2 123.8 5 88% 9.54 24.54 >65 kts 100.0 18.5 123.8 Analysis Plot
20230828 201542 SSMISF18 18.3 123.7 N/A N/A N/A N/A N/A 100.0 18.5 123.8 Analysis Plot
20230828 220554 SSMISF17 18.2 123.4 57 100% 20.69 35.69 >65 kts 100.0 18.7 123.7 Analysis Plot
20230829 092125 SSMISF16 19.1 122.9 23 100% 65.93 80.93 >85 kts 120.0 19.1 122.8 Analysis Plot
20230829 200141 SSMISF18 19.8 121.4 23 100% 66.03 81.03 >85 kts 135.0 20.1 121.6 Analysis Plot
20230829 215432 SSMISF16 19.9 121.3 23 100% 68.55 83.55 >85 kts 135.0 20.2 121.4 Analysis Plot
20230830 051752 AMSR2 20.3 120.4 23 100% 56.51 71.51 >85 kts 135.0 20.5 120.3 Analysis Plot
20230830 071633 SSMISF18 20.5 120.0 23 100% 51.78 66.78 >85 kts 135.0 20.5 120.1 Analysis Plot
20230830 090842 SSMISF16 20.6 119.9 23 100% 47.87 62.87 >85 kts 135.0 20.6 119.9 Analysis Plot
20230830 172842 AMSR2 20.9 118.8 23 100% 32.33 47.33 >65 kts 130.0 21.0 119.0 Analysis Plot
20230830 194910 SSMISF18 20.8 118.3 23 100% 41.52 56.52 >65 kts 130.0 21.0 118.4 Analysis Plot
20230830 214111 SSMISF16 20.8 118.4 12 100% 37.67 52.67 >65 kts 135.0 21.2 118.1 Analysis Plot
20230831 085700 SSMISF16 21.4 117.4 34 100% 40.43 55.43 >65 kts 135.0 21.3 117.4 Analysis Plot
20230831 103348 SSMISF17 21.6 117.6 34 100% 41.81 56.81 >65 kts 135.0 21.4 117.2 Analysis Plot
20230831 131034 GMI 21.4 117.3 N/A N/A N/A N/A N/A 135.0 21.5 117.1 Analysis Plot
20230831 180912 AMSR2 21.7 116.5 N/A N/A N/A N/A N/A 120.0 21.7 116.5 Analysis Plot
20230831 212905 SSMISF16 21.7 116.5 34 100% 38.00 53.00 >65 kts 120.0 21.8 116.2 Analysis Plot
20230831 230522 SSMISF17 21.6 116.4 34 100% 35.95 50.95 >65 kts 120.0 21.8 116.0 Analysis Plot
20230901 050740 AMSR2 21.9 115.6 N/A N/A N/A N/A N/A 120.0 22.0 115.4 Analysis Plot
20230901 083202 SSMISF18 22.1 115.1 12 54% 10.14 10.14 N/A 120.0 22.0 114.9 Analysis Plot
20230901 102021 SSMISF17 22.1 114.7 12 19% 7.95 7.95 N/A 120.0 22.0 114.7 Analysis Plot
20230901 210332 SSMISF18 22.0 113.1 N/A N/A N/A N/A N/A 100.0 21.9 112.9 Analysis Plot
20230901 225157 SSMISF17 21.6 112.9 46 N/A 1.32 1.32 N/A 100.0 21.8 112.6 Analysis Plot
20230902 054914 AMSR2 21.8 112.1 N/A N/A N/A N/A N/A 75.0 21.7 112.0 Analysis Plot
20230902 081755 SSMISF18 22.4 111.6 N/A N/A N/A N/A N/A 60.0 21.6 111.8 Analysis Plot
20230902 101104 SSMISF16 22.0 110.8 23 N/A 4.16 4.16 N/A 60.0 21.7 111.4 Analysis Plot
20230902 125821 GMI 20.8 111.8 N/A N/A N/A N/A N/A 60.0 21.7 111.2 Analysis Plot
20230902 180006 AMSR2 21.6 109.6 N/A N/A N/A N/A N/A 40.0 21.7 109.5 Analysis Plot
20230902 205002 SSMISF18 20.7 109.8 N/A N/A N/A N/A N/A 40.0 21.6 109.4 Analysis Plot
20230902 224250 SSMISF16 20.8 109.4 N/A N/A N/A N/A N/A 40.0 21.5 109.2 Analysis Plot
20230903 063304 AMSR2 21.0 108.7 N/A N/A N/A N/A N/A 30.0 21.0 108.7 Analysis Plot
20230903 080512 SSMISF18 20.9 108.8 N/A N/A N/A N/A N/A 30.0 20.9 108.6 Analysis Plot
20230903 095719 SSMISF16 20.9 108.6 23 N/A 0.67 -0.67 N/A 30.0 20.7 109.0 Analysis Plot
20230903 184229 AMSR2 20.4 108.5 N/A N/A N/A N/A N/A 20.0 20.4 108.6 Analysis Plot
20230903 203732 SSMISF18 20.3 108.4 12 N/A 0.77 -0.77 N/A 20.0 20.3 108.5 Analysis Plot
20230903 222954 SSMISF16 20.4 107.8 N/A N/A N/A N/A N/A 20.0 20.2 108.4 Analysis Plot
20230904 053814 AMSR2 19.4 107.9 N/A N/A N/A N/A N/A 20.0 19.8 108.1 Analysis Plot
20230904 094343 SSMISF16 19.5 108.0 90 N/A 0.16 -0.16 N/A 20.0 19.5 108.0 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. |
