Tropical Depression 27W
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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
20241111 034456 AMSR2 12.5 138.7 34 10% 6.71 -6.71 N/A 30.0 12.9 138.0 Analysis Plot
20241111 055611 GMI 12.5 138.0 N/A N/A N/A N/A N/A 30.0 13.0 137.8 Analysis Plot
20241111 064408 SSMISF18 12.8 138.1 57 N/A 1.42 -1.42 N/A 30.0 13.1 137.5 Analysis Plot
20241111 090827 SSMISF16 12.4 137.2 112 15% 0.99 -0.99 N/A 35.0 12.5 137.1 Analysis Plot
20241111 091146 SSMISF17 12.7 137.3 68 25% 1.26 -1.26 N/A 35.0 12.7 136.5 Analysis Plot
20241111 192040 SSMISF18 12.9 134.6 57 21% 9.66 -9.66 N/A 45.0 13.0 134.3 Analysis Plot
20241111 214829 SSMISF17 13.2 134.1 46 53% 7.99 -7.99 N/A 45.0 13.1 133.7 Analysis Plot
20241112 042707 AMSR2 13.8 132.1 34 68% 6.15 -6.15 N/A 45.0 14.2 132.5 Analysis Plot
20241112 063144 SSMISF18 13.9 131.4 68 58% 3.96 -3.96 N/A 45.0 14.3 132.1 Analysis Plot
20241112 085612 SSMISF16 14.4 130.9 146 47% 1.63 1.63 N/A 55.0 14.4 130.9 Analysis Plot
20241112 085851 SSMISF17 14.5 130.6 112 26% 2.01 2.01 N/A 55.0 14.5 130.5 Analysis Plot
20241112 183401 GMI 14.6 128.9 68 65% 8.96 8.96 N/A 55.0 14.9 128.9 Analysis Plot
20241112 190711 SSMISF18 14.8 128.5 46 49% 10.20 10.20 N/A 60.0 14.9 128.4 Analysis Plot
20241112 213354 SSMISF17 14.8 128.1 12 31% 3.44 3.44 N/A 60.0 15.1 128.0 Analysis Plot
20241113 060453 GMI 15.5 126.4 N/A N/A N/A N/A N/A 70.0 15.7 126.5 Analysis Plot
20241113 172316 AMSR2 16.7 124.1 179 38% 4.56 4.56 N/A 125.0 17.0 124.1 Analysis Plot
20241114 052115 GMI 17.3 121.5 N/A N/A N/A N/A N/A 130.0 17.9 122.4 Analysis Plot
20241114 074600 SSMISF18 18.2 122.3 N/A N/A N/A N/A N/A 115.0 18.3 122.0 Analysis Plot
20241114 101300 SSMISF17 18.8 121.9 N/A N/A N/A N/A N/A 115.0 18.5 121.7 Analysis Plot
20241114 184558 GMI 20.0 120.7 68 100% 26.90 41.90 >65 kts 75.0 19.5 121.1 Analysis Plot
20241114 224411 SSMISF16 20.3 120.4 46 49% 2.99 2.99 N/A 75.0 20.1 120.7 Analysis Plot
20241115 050019 AMSR2 20.8 119.5 N/A N/A N/A N/A N/A 75.0 20.7 120.4 Analysis Plot
20241115 073300 SSMISF18 20.9 119.2 N/A N/A N/A N/A N/A 75.0 20.9 120.3 Analysis Plot
20241115 095803 SSMISF16 21.2 119.0 N/A N/A N/A N/A N/A 75.0 21.0 120.4 Analysis Plot
20241115 200428 SSMISF18 21.8 119.6 135 10% 4.63 -4.63 N/A 35.0 22.5 120.3 Analysis Plot
20241115 223046 SSMISF17 22.0 121.3 N/A N/A N/A N/A N/A 35.0 22.7 120.6 Analysis Plot
20241116 054425 AMSR2 22.1 121.1 N/A N/A N/A N/A N/A 30.0 23.0 120.8 Analysis Plot
20241116 072008 SSMISF18 22.3 120.9 79 N/A 2.05 -2.05 N/A 25.0 23.0 120.8 Analysis Plot
20241116 094500 SSMISF16 23.4 120.4 N/A N/A N/A N/A N/A 25.0 22.4 120.8 Analysis Plot
20241116 094550 SSMISF17 23.5 120.4 57 N/A 0.97 -0.97 N/A 25.0 22.4 120.8 Analysis Plot
20241116 175236 AMSR2 23.7 119.4 N/A N/A N/A N/A N/A 20.0 22.5 121.2 Analysis Plot
20241116 195052 SSMISF18 23.3 120.4 N/A N/A N/A N/A N/A 20.0 22.6 121.3 Analysis Plot
20241116 221645 SSMISF17 23.1 121.2 23 N/A 0.18 -0.18 N/A 20.0 22.7 121.4 Analysis Plot
20241117 045051 GMI 22.3 123.0 N/A N/A N/A N/A N/A 20.0 23.1 121.7 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. |
