Tropical Storm 21S
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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
20260208 120116 GMI -18.4 56.3 N/A N/A N/A N/A N/A 35.0 -17.9 56.5 Analysis Plot
20260208 220529 AMSR2 -18.4 55.6 N/A N/A N/A N/A N/A 40.0 -18.2 55.9 Analysis Plot
20260209 101631 AMSR2 -18.0 54.1 12 100% 21.96 -36.96 N/A 50.0 -17.8 54.0 Analysis Plot
20260209 111912 GMI -18.0 53.8 12 82% 0.08 -0.08 N/A 50.0 -17.8 54.0 Analysis Plot
20260210 004226 GMI -18.0 51.9 N/A N/A N/A N/A N/A 70.0 -18.0 51.8 Analysis Plot
20260210 215256 AMSR2 -18.3 48.3 N/A N/A N/A N/A N/A 90.0 -18.3 47.9 Analysis Plot
20260211 002612 SSMISF18 -18.5 47.7 N/A N/A N/A N/A N/A 70.0 -18.4 47.5 Analysis Plot
20260211 030333 SSMISF17 -18.4 47.4 N/A N/A N/A N/A N/A 70.0 -18.5 47.4 Analysis Plot
20260211 031701 SSMISF16 -18.3 47.3 N/A N/A N/A N/A N/A 70.0 -18.5 47.2 Analysis Plot
20260211 113023 GMI -18.5 44.7 79 62% 7.28 -7.28 N/A 50.0 -18.9 45.4 Analysis Plot
20260211 125919 SSMISF18 -18.6 44.3 57 40% 5.60 -5.60 N/A 25.0 -19.0 45.0 Analysis Plot
20260211 155031 SSMISF16 -19.0 43.8 101 28% 8.07 -8.07 N/A 25.0 -19.2 43.8 Analysis Plot
20260211 223558 AMSR2 -19.5 42.4 57 28% 8.66 -8.66 N/A 40.0 -19.5 42.2 Analysis Plot
20260212 005421 GMI -19.6 41.8 90 51% 7.69 -7.69 N/A 40.0 -19.5 42.1 Analysis Plot
20260212 024926 SSMISF17 -19.8 41.5 57 61% 12.12 -12.12 N/A 50.0 -20.0 41.5 Analysis Plot
20260212 104710 AMSR2 -20.3 40.2 34 100% 30.62 45.62 >65 kts 65.0 -20.4 40.2 Analysis Plot
20260212 152146 SSMISF17 -20.4 39.4 34 100% 25.67 40.67 >65 kts 75.0 -20.7 39.3 Analysis Plot
20260212 232102 AMSR2 -21.2 37.6 N/A N/A N/A N/A N/A 75.0 -21.4 37.9 Analysis Plot
20260213 013948 SSMISF18 -21.6 37.8 135 100% 47.06 62.06 >85 kts 75.0 -21.5 37.8 Analysis Plot
20260213 043139 SSMISF16 -22.0 37.3 57 58% 19.47 19.47 N/A 75.0 -21.8 37.3 Analysis Plot
20260213 114135 GMI -22.5 36.4 34 100% 31.21 46.21 >65 kts 75.0 -22.5 36.7 Analysis Plot
20260213 141048 SSMISF18 -22.7 36.2 34 44% 23.92 23.92 >65 kts 75.0 -22.9 36.3 Analysis Plot
20260213 170243 SSMISF16 -23.0 36.2 23 39% 13.37 13.37 N/A 90.0 -23.1 36.2 Analysis Plot
20260213 222607 AMSR2 -23.8 35.9 23 100% 39.14 54.14 >65 kts 90.0 -23.9 36.2 Analysis Plot
20260214 010753 GMI -24.1 35.7 34 100% 36.51 51.51 >65 kts 90.0 -24.1 36.2 Analysis Plot
20260214 012614 SSMISF18 -24.4 35.8 23 100% 29.11 44.11 >65 kts 90.0 -24.3 36.2 Analysis Plot
20260214 041810 SSMISF16 -24.7 36.2 168 25% 2.82 2.82 N/A 90.0 -24.7 35.9 Analysis Plot
20260214 105847 GMI -25.5 36.9 90 49% 8.99 8.99 N/A 95.0 -25.4 36.3 Analysis Plot
20260214 135539 SSMISF18 -26.0 37.1 201 31% 5.57 5.57 N/A 90.0 -26.1 36.9 Analysis Plot
20260215 002630 GMI -26.7 38.4 23 46% 14.49 14.49 N/A 80.0 -26.5 38.3 Analysis Plot
20260215 011240 SSMISF18 -27.1 38.5 N/A N/A N/A N/A N/A 85.0 -26.7 38.9 Analysis Plot
20260215 040501 SSMISF16 -27.0 39.3 N/A N/A N/A N/A N/A 85.0 -26.7 39.3 Analysis Plot
20260215 101726 GMI -26.7 40.1 46 N/A 12.64 12.64 N/A 80.0 -26.6 40.1 Analysis Plot
20260215 134117 SSMISF18 -26.3 40.9 N/A N/A N/A N/A N/A 80.0 -26.2 40.3 Analysis Plot
20260215 234509 GMI -25.8 41.9 N/A N/A N/A N/A N/A 85.0 -25.6 41.6 Analysis Plot
20260216 005806 SSMISF18 -26.0 42.3 N/A N/A N/A N/A N/A 75.0 -25.5 41.8 Analysis Plot
20260216 035045 SSMISF16 -26.0 42.5 N/A N/A N/A N/A N/A 75.0 -25.4 42.1 Analysis Plot
20260216 132718 SSMISF18 -25.6 43.1 N/A N/A N/A N/A N/A 65.0 -25.5 42.7 Analysis Plot
20260217 033732 SSMISF16 -29.1 42.7 23 35% 1.62 1.62 N/A 55.0 -27.7 43.7 Analysis Plot
20260217 131155 SSMISF18 -30.4 42.2 N/A N/A N/A N/A N/A 50.0 -32.0 42.8 Analysis Plot
20260217 154740 SSMISF17 -31.8 43.3 N/A N/A N/A N/A N/A 50.0 -32.8 42.5 Analysis Plot
20260217 235929 GMI -33.1 41.5 N/A N/A N/A N/A N/A 50.0 -33.0 41.9 Analysis Plot
20260218 003223 SSMISF18 -33.2 41.8 279 8% 6.08 -6.08 N/A 45.0 -33.2 41.8 Analysis Plot
20260218 030830 SSMISF17 -33.7 41.5 N/A N/A N/A N/A N/A 45.0 -33.8 41.8 Analysis Plot
20260218 032550 SSMISF16 -33.8 41.7 N/A N/A N/A N/A N/A 45.0 -33.9 41.8 Analysis Plot
20260218 114504 AMSR2 -35.0 43.6 N/A N/A N/A N/A N/A 50.0 -35.7 41.8 Analysis Plot
20260218 153217 SSMISF17 -36.7 42.6 135 N/A 1.68 -1.68 N/A 45.0 -36.4 42.0 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. |
