Tropical Depression 30P
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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
20260404 081459 SSMISF17 -8.9 154.2 N/A N/A N/A N/A N/A 40.0 -9.1 154.6 Analysis Plot
20260404 153400 AMSR2 -8.5 154.5 N/A N/A N/A N/A N/A 45.0 -8.9 155.0 Analysis Plot
20260404 192131 SSMISF17 -8.7 154.2 46 86% 16.15 -31.15 N/A 50.0 -8.9 154.9 Analysis Plot
20260405 021056 GMI -9.0 154.2 46 14% 7.74 7.74 N/A 65.0 -8.9 154.2 Analysis Plot
20260405 035113 AMSR2 -9.2 154.3 N/A N/A N/A N/A N/A 65.0 -9.0 154.2 Analysis Plot
20260405 190801 SSMISF17 -9.0 153.9 N/A N/A N/A N/A N/A 90.0 -9.4 154.9 Analysis Plot
20260406 012910 GMI -9.5 154.9 23 49% 6.55 6.55 N/A 90.0 -9.6 155.1 Analysis Plot
20260406 130336 GMI -9.7 155.6 34 43% 8.35 8.35 N/A 85.0 -9.7 155.6 Analysis Plot
20260406 152113 AMSR2 -9.8 155.9 34 25% 0.65 0.65 N/A 95.0 -9.7 155.7 Analysis Plot
20260407 033754 AMSR2 -9.9 156.4 57 100% 38.20 53.20 >65 kts 90.0 -9.9 156.4 Analysis Plot
20260407 081310 SSMISF16 -9.6 156.2 46 100% 46.44 61.44 >85 kts 100.0 -9.9 156.5 Analysis Plot
20260407 122141 GMI -9.7 156.3 46 100% 39.82 54.82 >65 kts 100.0 -9.9 156.5 Analysis Plot
20260407 174912 SSMISF18 -9.6 156.0 46 100% 33.07 48.07 >65 kts 120.0 -9.5 156.1 Analysis Plot
20260408 071725 SSMISF17 -8.5 155.8 46 69% 27.73 27.73 >65 kts 115.0 -8.8 155.6 Analysis Plot
20260408 071731 SSMISF17 -8.5 155.8 46 100% 28.75 43.75 >65 kts 115.0 -8.7 155.6 Analysis Plot
20260408 150819 AMSR2 -8.5 155.6 34 100% 24.48 39.48 >65 kts 105.0 -8.6 155.5 Analysis Plot
20260409 005902 GMI -8.4 154.9 23 53% 14.59 14.59 N/A 100.0 -8.5 155.1 Analysis Plot
20260409 032516 AMSR2 -8.3 154.7 23 62% 4.48 4.48 N/A 100.0 -8.5 154.7 Analysis Plot
20260409 195021 SSMISF17 -7.9 153.6 N/A N/A N/A N/A N/A 75.0 -8.3 154.1 Analysis Plot
20260409 203308 SSMISF16 -8.0 153.5 N/A N/A N/A N/A N/A 75.0 -8.2 153.9 Analysis Plot
20260410 001657 GMI -8.1 154.4 N/A N/A N/A N/A N/A 75.0 -8.2 153.9 Analysis Plot
20260410 001659 GMI -7.0 154.1 N/A N/A N/A N/A N/A 80.0 -8.2 153.9 Analysis Plot
20260410 115129 GMI -8.6 154.4 N/A N/A N/A N/A N/A 55.0 -8.4 154.2 Analysis Plot
20260410 145621 AMSR2 -8.2 154.5 212 N/A 1.78 -1.78 N/A 45.0 -8.6 154.1 Analysis Plot
20260410 193618 SSMISF17 -8.4 154.3 N/A N/A N/A N/A N/A 40.0 -8.6 154.0 Analysis Plot
20260411 031301 AMSR2 -8.2 155.0 N/A N/A N/A N/A N/A 35.0 -8.6 153.9 Analysis Plot
20260411 054528 SSMISF18 -8.0 154.9 N/A N/A N/A N/A N/A 35.0 -7.8 154.6 Analysis Plot
20260411 085833 SSMISF16 -8.2 154.6 N/A N/A N/A N/A N/A 30.0 -7.9 154.6 Analysis Plot
20260411 154015 AMSR2 -8.8 154.9 N/A N/A N/A N/A N/A 30.0 -8.2 154.8 Analysis Plot
20260411 192204 SSMISF17 -8.2 154.7 12 N/A 1.11 -1.11 N/A 30.0 -8.3 154.8 Analysis Plot
20260411 200644 SSMISF16 -8.3 154.7 201 N/A 0.01 -0.01 N/A 30.0 -8.3 154.7 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. |
