Tropical Depression 26W
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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
20241109 093626 SSMISF16 14.6 130.8 12 100% 25.67 -40.67 N/A 30.0 14.6 130.7 Analysis Plot
20241109 094042 SSMISF17 14.7 130.9 23 99% 17.96 -32.96 N/A 30.0 14.7 130.2 Analysis Plot
20241109 194745 SSMISF18 14.9 127.9 68 49% 6.27 6.27 N/A 55.0 15.1 127.7 Analysis Plot
20241109 221611 SSMISF17 14.7 127.4 12 93% 7.76 22.76 >65 kts 55.0 15.2 127.1 Analysis Plot
20241110 044019 AMSR2 15.0 125.9 23 19% 7.33 7.33 N/A 60.0 15.3 125.8 Analysis Plot
20241110 063655 GMI 15.2 125.6 57 1% 5.99 5.99 N/A 65.0 15.3 125.6 Analysis Plot
20241110 065946 SSMISF18 15.4 125.3 57 29% 9.14 9.14 N/A 65.0 15.3 124.9 Analysis Plot
20241110 092341 SSMISF16 15.6 124.8 34 36% 0.46 0.46 N/A 65.0 15.5 124.4 Analysis Plot
20241110 092713 SSMISF17 15.7 124.8 N/A N/A N/A N/A N/A 65.0 15.6 124.1 Analysis Plot
20241110 195836 GMI 16.2 123.0 N/A N/A N/A N/A N/A 80.0 16.1 122.9 Analysis Plot
20241110 215818 SSMISF16 16.0 122.8 57 100% 31.39 46.39 >65 kts 80.0 16.4 122.3 Analysis Plot
20241110 220136 SSMISF17 16.0 122.8 57 100% 29.03 44.03 >65 kts 80.0 16.4 122.2 Analysis Plot
20241111 052321 AMSR2 16.8 121.5 46 83% 8.48 8.48 N/A 70.0 17.0 121.2 Analysis Plot
20241111 173525 AMSR2 18.1 119.4 90 15% 4.55 -4.55 N/A 50.0 18.6 119.0 Analysis Plot
20241112 064550 GMI 19.4 118.2 101 32% 4.35 -4.35 N/A 45.0 19.1 118.0 Analysis Plot
20241112 081416 SSMISF18 19.8 118.2 123 28% 9.38 -9.38 N/A 45.0 19.3 117.7 Analysis Plot
20241112 104230 SSMISF17 20.1 118.4 N/A N/A N/A N/A N/A 45.0 19.4 117.5 Analysis Plot
20241112 181815 AMSR2 20.1 116.7 90 N/A 3.60 -3.60 N/A 45.0 20.1 116.9 Analysis Plot
20241112 204700 SSMISF18 19.9 116.7 101 3% 4.44 -4.44 N/A 45.0 20.1 116.7 Analysis Plot
20241112 231208 SSMISF16 20.2 116.4 112 14% 5.10 -5.10 N/A 45.0 20.2 116.4 Analysis Plot
20241113 060220 GMI 20.6 115.8 101 10% 5.38 -5.38 N/A 45.0 20.4 115.6 Analysis Plot
20241113 080032 SSMISF18 21.0 115.5 90 29% 7.39 -7.39 N/A 45.0 20.6 115.1 Analysis Plot
20241113 102731 SSMISF17 20.6 114.9 257 6% 1.74 -1.74 N/A 45.0 20.6 114.8 Analysis Plot
20241113 192736 GMI 21.1 114.6 N/A N/A N/A N/A N/A 40.0 22.0 114.6 Analysis Plot
20241113 203227 SSMISF18 21.0 114.1 235 N/A 1.86 -1.86 N/A 40.0 21.1 114.1 Analysis Plot
20241113 225722 SSMISF16 21.0 114.2 146 N/A 0.55 -0.55 N/A 40.0 21.1 114.0 Analysis Plot
20241113 225928 SSMISF17 20.9 114.2 135 N/A 1.41 -1.41 N/A 40.0 21.1 114.0 Analysis Plot
20241114 055525 AMSR2 21.0 113.7 N/A N/A N/A N/A N/A 25.0 21.0 113.7 Analysis Plot
20241114 074724 SSMISF18 21.1 113.6 157 N/A 2.26 -2.26 N/A 25.0 21.0 113.7 Analysis Plot
20241114 101342 SSMISF17 21.0 113.6 179 N/A 2.38 -2.38 N/A 25.0 20.9 113.5 Analysis Plot
20241114 180534 AMSR2 21.0 113.1 N/A N/A N/A N/A N/A 20.0 20.8 113.1 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. |
