UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025102100.upa.cvt Date: 0000Z 21 OCT 25 Searching for VV839... Searching the city database file for: VV839 ... Date:0000Z 21 OCT 25 Station: VV839 WMO ident: 48839 Latitude: 20.13 Longitude: 107.72 ------------------------------------------------------------------------------- LEV PRES HGHT TEMP DEWP RH DD WETB DIR SPD THETA THE-V THE-W THE-E W mb m C C % C C deg knt K K K K g/kg ------------------------------------------------------------------------------- SFC 1013 11 24.2 19.3 74 4.9 20.8 30 1 296.3 298.8 293.5 336.7 14.04 1 1000 123 23.8 17.8 69 6.0 19.7 30 29 297.0 299.3 292.9 334.3 12.93 2 975 344 20.6 17.8 84 2.8 18.7 30 28 295.9 298.3 292.8 334.0 13.26 3 930 751 17.4 16.3 93 1.1 16.7 30 25 296.6 298.9 292.6 333.1 12.63 4 925 797 19.0 14.8 77 4.2 16.3 30 25 298.7 300.8 292.3 332.3 11.52 5 915 891 19.8 15.1 74 4.7 16.7 30 24 300.5 302.7 293.2 335.3 11.88 6 899 1043 19.2 15.7 80 3.5 16.8 30 22 301.4 303.7 293.9 338.4 12.58 7 850 1524 15.4 14.2 93 1.2 14.6 30 15 302.3 304.5 293.8 338.0 12.07 8 806 1974 13.0 12.2 95 0.8 12.5 34 16 304.4 306.4 293.7 337.6 11.15 9 786 2185 12.0 10.6 91 1.4 11.1 36 16 305.5 307.4 293.4 336.3 10.27 10 774 2315 13.0 11.6 91 1.4 12.1 37 16 307.9 310.0 294.7 341.7 11.16 11 745 2635 11.2 9.6 90 1.6 10.2 40 16 309.3 311.2 294.4 340.2 10.13 12 739 2703 12.8 6.8 67 6.0 9.2 41 16 311.8 313.4 293.8 337.8 8.42 13 724 2875 11.4 6.4 71 5.0 8.4 42 17 312.1 313.7 293.8 337.9 8.36 14 716 2969 12.0 -6.0 28 18.0 3.3 43 17 313.7 314.4 290.2 324.7 3.41 15 704 3110 11.6 -0.4 43 12.0 5.1 45 17 314.8 315.8 292.2 331.5 5.28 16 700 3158 11.2 -0.8 43 12.0 4.8 45 17 314.9 315.9 292.0 331.2 5.16 17 657 3684 7.2 -0.8 57 8.0 2.9 47 16 316.1 317.2 292.7 333.6 5.50 18 647 3810 6.4 -7.6 36 14.0 -0.1 47 16 316.6 317.3 291.0 327.4 3.34 19 513 5686 -2.5 -23.5 18 21.0 -9.2 54 13 327.6 327.8 292.2 331.6 1.12 20 512 5702 -2.7 -24.7 17 22.0 -9.5 54 13 327.5 327.7 292.0 331.1 1.01 21 500 5890 -2.9 -27.9 13 25.0 -10.1 55 13 329.5 329.7 292.3 332.3 0.77 22 473 6327 -5.5 -37.5 6 32.0 -12.7 331.6 331.6 292.4 332.8 0.32 TRP WND Sounding variables and indices 1000-500 mb thick: 5767.00 m Freezing level: 550.64 mb = 5159.26 m = 16926.49 ft Wetbulb zero: 647.32 mb = 3806.26 m = 12487.59 ft Precipitable water: 1.63 inches Sfc-500 mean rel hum: 57.64 % Est. max temperature: 30.01 C = 86.02 F Sfc-Lift cond lev (LCL): 943.05 mb = 630.67 m = 2069.12 ft T: 18.34 C 700-500 lapse rate: 5.16 C/km ThetaE index: 13.27 C Layer 716.0- 704.0 mb Conv cond level (CCL): 843.47 mb = 1589.28 m = 5214.11 ft Mean mixing ratio: 12.85 g/kg Conv temperature: 30.55 C = 86.99 F Cap Strength: 5.66 C Lifted Index: 6.46 C Risk: None Lifted Index @700 mb: 5.50 C Showalter Index: 4.76 C Risk: None Total Totals Index: 35.40 C Risk: None Vertical Totals Index: 18.30 C Cross Totals Index: 17.10 C K Index: 20.50 Risk: 20-40 % chance of thunderstorms Sweat Index: 213.40 Risk: None Energy Index: -0.98 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 12.18 J/kg Max Up Vert Vel: 4.94 m/s Conv Inhibition (B-): 795.71 J/kg Cap Strength: 5.97 C Lift Cond Lev (LCL): 916.16 mb = 880.00 m = 2887.12 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 70 at 13 knt ---------------------------------------------------------- TRUE/GROUND REL | STORM REL LEV P H DIR SPD U V | DIR SPD U V mb m knt m/s | knt m/s ---------------------------------------------------------- 0 1013 11 30 1 -0.5 -0.9 | 253 12 11.6 3.5 1 1000 123 30 29 -14.5 -25.1 | 7 21 -2.4 -20.7 2 925 797 30 25 -12.5 -21.7 | 1 17 -0.4 -17.3 3 850 1524 30 15 -7.5 -13.0 | 332 10 4.6 -8.6 4 700 3158 45 17 -12.0 -12.0 | 359 8 0.1 -7.6 5 500 5890 55 13 -10.6 -7.5 | 334 3 1.5 -3.1 Wind Parameters Mean winds (0-6000m): 40.1 at 17.2 knts Storm direction: 70.1 at 12.9 knts Shear (0-3000m) pos: 0.7 neg: 2.4 tot: 3.1 10-3/s Storm rel Dir Shear (0-3000m): 103.1 deg Storm rel helicity (0-3000m) pos: 68.5 neg: -29.2 tot: 39.3 m^2/s^2 ave: 13.1 10^-3 m/s^2 rel: 0.52 Storm rel vorticity (0-3000m) horiz: 8.5 stream: 4.4 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 1.26 Bulk Shear: 9.67 m/s Storm Parameters ------------------------------------------------------------------------------- Depth Mean Inflow| Shear | Helicity | Vorticity AGL Dir Spd Dir Spd| Pos Neg Tot| Pos Neg Tot Ave Rel | Hor Strm m knt knt| 10^-3/s | m^2/s^2 m/s^2 | 10^-3/s ------------------------------------------------------------------------------- 500 30 25 1 17| 0.0 26.4 26.4| 60.4 -3.9 56.5 112.9 0.86| 34.8 30.1 1000 30 25 1 17| 0.0 10.8 10.8| 60.4 -14.1 46.3 46.3 0.70| 19.8 13.8 1500 30 23 357 15| 0.0 4.9 4.9| 60.4 -29.2 31.2 20.8 0.49| 15.6 7.6 2000 30 21 354 14| 0.3 3.6 4.0| 62.8 -29.2 33.6 16.8 0.50| 12.0 6.0 2500 31 20 352 13| 0.6 2.9 3.5| 65.7 -29.2 36.5 14.6 0.51| 9.9 5.0 3000 33 19 352 12| 0.7 2.4 3.1| 68.5 -29.2 39.3 13.1 0.52| 8.5 4.4 4000 36 19 353 11| 0.6 1.8 2.5| 69.3 -29.8 39.5 9.9 0.50| 6.6 3.3 5000 38 18 354 10| 0.6 1.5 2.0| 69.3 -30.8 38.5 7.7 0.47| 5.5 2.6 6000 NO DATA | 0.6 1.3 1.9| | Wrote GIF file: 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