Tropical Depression 09S
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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
20251218 090652 SSMISF18 -11.6 109.3 N/A N/A N/A N/A N/A 35.0 -12.2 110.2 Analysis Plot
20251218 201632 SSMISF18 -12.1 107.8 N/A N/A N/A N/A N/A 35.0 -12.1 109.4 Analysis Plot
20251218 231647 GMI -12.5 109.1 135 N/A 0.75 -0.75 N/A 35.0 -12.1 109.3 Analysis Plot
20251219 181425 AMSR2 -12.3 107.5 N/A N/A N/A N/A N/A 35.0 -12.3 107.5 Analysis Plot
20251219 224632 SSMISF17 -12.1 107.0 N/A N/A N/A N/A N/A 35.0 -12.4 107.4 Analysis Plot
20251220 062928 AMSR2 -12.1 106.1 N/A N/A N/A N/A N/A 40.0 -12.1 106.1 Analysis Plot
20251220 115450 GMI -12.1 105.8 N/A N/A N/A N/A N/A 40.0 -12.2 105.9 Analysis Plot
20251220 212950 SSMISF18 -12.0 103.9 79 50% 3.23 -3.23 N/A 35.0 -12.5 104.4 Analysis Plot
20251220 223307 SSMISF17 -11.9 104.5 N/A N/A N/A N/A N/A 35.0 -12.5 104.3 Analysis Plot
20251221 000123 SSMISF16 -12.5 104.9 N/A N/A N/A N/A N/A 35.0 -12.5 104.2 Analysis Plot
20251221 071313 AMSR2 -12.9 103.5 N/A N/A N/A N/A N/A 45.0 -12.5 103.5 Analysis Plot
20251221 224525 GMI -12.3 102.6 112 19% 2.86 -2.86 N/A 40.0 -12.2 102.6 Analysis Plot
20251221 234720 SSMISF16 -12.4 102.4 68 7% 0.70 -0.70 N/A 40.0 -12.0 102.2 Analysis Plot
20251222 095208 SSMISF18 -12.3 101.5 157 N/A 3.15 -3.15 N/A 40.0 -12.0 101.3 Analysis Plot
20251222 122425 SSMISF16 -12.3 101.2 N/A N/A N/A N/A N/A 40.0 -12.0 101.1 Analysis Plot
20251222 184519 AMSR2 -12.8 100.7 N/A N/A N/A N/A N/A 40.0 -12.8 100.6 Analysis Plot
20251222 233443 SSMISF16 -12.8 100.3 N/A N/A N/A N/A N/A 40.0 -12.7 100.4 Analysis Plot
20251223 070009 AMSR2 -12.6 99.6 34 15% 6.44 -6.44 N/A 40.0 -12.4 99.4 Analysis Plot
20251223 112333 GMI -12.4 99.1 34 N/A 3.46 -3.46 N/A 45.0 -12.3 99.1 Analysis Plot
20251223 225538 GMI -12.0 97.4 N/A N/A N/A N/A N/A 35.0 -11.8 98.4 Analysis Plot
20251223 233037 SSMISF17 -12.3 99.0 N/A N/A N/A N/A N/A 35.0 -11.8 98.4 Analysis Plot
20251224 115818 SSMISF16 -11.6 97.4 N/A N/A N/A N/A N/A 40.0 -11.9 97.5 Analysis Plot
20251224 120823 SSMISF17 -11.8 97.8 N/A N/A N/A N/A N/A 40.0 -11.9 97.4 Analysis Plot
20251224 183348 AMSR2 -11.8 97.1 N/A N/A N/A N/A N/A 40.0 -11.8 96.8 Analysis Plot
20251224 221404 GMI -11.8 97.2 112 11% 3.23 -3.23 N/A 40.0 -11.7 96.6 Analysis Plot
20251224 231632 SSMISF17 -12.0 96.6 68 25% 2.77 -2.77 N/A 45.0 -11.7 96.5 Analysis Plot
20251225 004819 SSMISF16 -12.3 96.9 N/A N/A N/A N/A N/A 45.0 -11.9 96.3 Analysis Plot
20251225 064918 AMSR2 -12.0 95.4 N/A N/A N/A N/A N/A 45.0 -11.9 95.7 Analysis Plot
20251225 115313 SSMISF17 -12.2 94.9 N/A N/A N/A N/A N/A 45.0 -11.9 95.3 Analysis Plot
20251225 191600 AMSR2 -12.4 93.9 23 100% 27.64 -42.64 N/A 45.0 -12.3 93.8 Analysis Plot
20251225 215939 SSMISF18 -12.8 93.5 N/A N/A N/A N/A N/A 50.0 -12.2 93.6 Analysis Plot
20251226 003331 SSMISF16 -12.6 92.9 N/A N/A N/A N/A N/A 55.0 -12.2 93.3 Analysis Plot
20251226 073056 AMSR2 -12.2 92.0 23 61% 0.63 -0.63 N/A 50.0 -12.3 92.1 Analysis Plot
20251226 105152 GMI -12.1 92.0 79 19% 1.63 -1.63 N/A 50.0 -12.3 92.0 Analysis Plot
20251226 113927 SSMISF17 -11.9 91.1 N/A N/A N/A N/A N/A 50.0 -12.3 91.9 Analysis Plot
20251226 131047 SSMISF16 -11.9 91.1 223 24% 1.23 1.23 N/A 55.0 -11.9 91.1 Analysis Plot
20251226 222442 GMI -11.6 89.9 12 65% 6.69 6.69 N/A 60.0 -12.0 90.0 Analysis Plot
20251227 002033 SSMISF16 -11.6 89.5 N/A N/A N/A N/A N/A 60.0 -12.0 89.6 Analysis Plot
20251227 102216 SSMISF18 -11.7 88.2 201 N/A 1.09 1.09 N/A 60.0 -12.0 88.6 Analysis Plot
20251228 001504 SSMISF17 -12.5 86.4 23 100% 20.10 35.10 >65 kts 65.0 -12.4 86.2 Analysis Plot
20251228 100851 SSMISF18 -12.8 84.6 12 100% 24.35 39.35 >65 kts 75.0 -12.7 85.2 Analysis Plot
20251228 110235 GMI -12.9 84.7 12 100% 23.92 38.92 >65 kts 75.0 -12.8 85.1 Analysis Plot
20251228 194716 AMSR2 -13.3 83.2 5 100% 50.07 65.07 >85 kts 80.0 -13.5 83.0 Analysis Plot
20251229 000151 SSMISF17 -13.6 82.2 5 100% 12.80 27.80 >65 kts 80.0 -13.8 82.4 Analysis Plot
20251229 080145 AMSR2 -13.6 81.1 5 100% 34.05 49.05 >65 kts 115.0 -13.8 80.9 Analysis Plot
20251229 123712 SSMISF17 -13.6 80.3 N/A N/A N/A N/A N/A 120.0 -13.7 80.2 Analysis Plot
20251229 141112 SSMISF16 -13.8 80.2 N/A N/A N/A N/A N/A 120.0 -13.8 80.1 Analysis Plot
20251229 215153 GMI -14.2 78.7 12 100% 52.87 67.87 >85 kts 115.0 -14.0 78.8 Analysis Plot
20251229 224451 SSMISF18 -14.4 78.5 12 100% 33.34 48.34 >65 kts 115.0 -14.0 78.4 Analysis Plot
20251230 012041 SSMISF16 -14.4 77.9 12 100% 28.18 43.18 >65 kts 110.0 -14.3 77.8 Analysis Plot
20251230 111303 GMI -14.5 75.9 12 100% 48.86 63.86 >85 kts 120.0 -14.5 76.2 Analysis Plot
20251230 112043 SSMISF18 -14.4 75.8 5 100% 22.62 37.62 >65 kts 120.0 -14.5 76.1 Analysis Plot
20251230 135615 SSMISF16 -14.4 75.3 5 100% 20.61 35.61 >65 kts 120.0 -14.6 75.7 Analysis Plot
20251230 223231 SSMISF18 -15.0 73.3 12 89% 8.60 23.60 >65 kts 110.0 -15.1 73.6 Analysis Plot
20251231 011434 SSMISF17 -15.1 73.0 12 100% 14.42 29.42 >65 kts 105.0 -15.1 72.7 Analysis Plot
20251231 134927 SSMISF17 -15.6 70.5 23 100% 26.31 41.31 >65 kts 100.0 -15.8 69.3 Analysis Plot
20251231 220132 GMI -16.2 68.9 N/A N/A N/A N/A N/A 80.0 -16.1 68.1 Analysis Plot
20260101 133454 SSMISF17 -16.2 67.2 N/A N/A N/A N/A N/A 50.0 -16.3 68.0 Analysis Plot
20260101 210158 AMSR2 -15.8 67.7 N/A N/A N/A N/A N/A 35.0 -15.9 67.4 Analysis Plot
20260101 234440 SSMISF18 -16.9 66.4 N/A N/A N/A N/A N/A 35.0 -15.9 67.2 Analysis Plot
20260102 104110 GMI -15.5 66.8 N/A N/A N/A N/A N/A 35.0 -15.5 66.5 Analysis Plot
20260102 122015 SSMISF18 -14.9 66.1 N/A N/A N/A N/A N/A 35.0 -15.5 66.3 Analysis Plot
20260102 132138 SSMISF17 -14.6 66.2 N/A N/A N/A N/A N/A 35.0 -15.2 66.5 Analysis Plot
20260103 212939 GMI -15.2 62.3 123 14% 1.02 -1.02 N/A 30.0 -15.1 62.5 Analysis Plot
20260104 105119 GMI -15.8 61.0 N/A N/A N/A N/A N/A 30.0 -15.8 61.0 Analysis Plot
20260104 143343 SSMISF17 -15.3 58.9 N/A N/A N/A N/A N/A 30.0 -16.2 59.1 Analysis Plot
20260104 213310 AMSR2 -16.0 57.4 N/A N/A N/A N/A N/A 25.0 -16.4 57.0 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. |
