UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101900.upa.cvt Date: 0000Z 19 OCT 25 Searching for VV839... Searching the city database file for: VV839 ... Date:0000Z 19 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 1012 9 27.8 25.2 86 2.6 25.9 0 0 299.9 303.6 298.6 359.6 20.33 1 1000 114 27.0 24.8 88 2.2 25.4 50 9 300.1 303.8 298.5 359.1 20.08 2 925 801 22.4 18.9 81 3.5 19.9 50 11 302.2 305.0 295.8 346.6 15.02 3 850 1534 17.8 16.4 92 1.4 16.8 65 19 304.8 307.4 295.8 346.4 13.94 4 825 1789 15.8 15.3 97 0.5 15.5 67 18 305.3 307.8 295.6 345.3 13.37 5 767 2407 13.4 4.4 54 9.0 8.2 70 16 309.1 310.4 291.7 330.2 6.85 6 745 2652 11.0 8.8 86 2.2 9.6 72 15 309.1 310.9 293.9 338.3 9.59 7 724 2891 10.4 1.4 54 9.0 5.5 73 14 311.0 312.1 291.5 329.2 5.86 8 717 2972 10.8 -1.2 43 12.0 4.5 74 14 312.3 313.2 291.0 327.7 4.89 9 700 3172 9.8 -3.2 40 13.0 3.2 75 13 313.3 314.2 290.9 327.0 4.31 10 691 3280 9.4 -6.6 32 16.0 1.8 76 13 314.1 314.7 290.2 324.9 3.37 11 673 3498 7.4 -1.6 53 9.0 2.7 77 13 314.2 315.2 291.7 330.2 5.06 12 648 3809 5.6 -8.4 36 14.0 -0.7 80 13 315.6 316.2 290.5 325.7 3.13 13 637 3949 4.2 -1.8 65 6.0 1.1 81 12 315.5 316.5 292.3 332.3 5.27 14 621 4156 3.6 -11.4 32 15.0 -2.7 82 12 317.1 317.6 290.5 325.6 2.57 15 603 4394 2.6 -13.4 30 16.0 -3.8 84 12 318.7 319.1 290.6 326.2 2.25 16 597 4475 2.2 -11.8 35 14.0 -3.7 84 12 319.1 319.6 291.0 327.7 2.59 17 595 4502 1.8 -4.2 64 6.0 -1.2 85 12 319.0 319.9 292.9 334.2 4.71 18 585 4639 0.8 -4.2 69 5.0 -1.7 86 12 319.3 320.3 293.0 334.9 4.79 19 579 4722 0.2 -5.8 64 6.0 -2.7 86 12 319.6 320.4 292.7 333.5 4.29 20 560 4990 0.2 -14.8 31 15.0 -5.7 88 12 322.7 323.1 291.7 330.0 2.16 21 553 5091 -0.5 -8.5 55 8.0 -4.1 89 12 323.0 323.7 293.1 335.0 3.64 22 546 5192 -1.1 -13.1 40 12.0 -6.0 90 12 323.5 324.0 292.3 332.1 2.55 23 537 5325 -1.5 -9.5 54 8.0 -5.1 91 11 324.5 325.2 293.3 336.1 3.47 24 532 5400 -1.9 -12.9 43 11.0 -6.4 91 11 324.9 325.4 292.7 333.9 2.66 25 515 5657 -4.1 -9.1 68 5.0 -6.4 93 11 325.3 326.0 293.7 337.7 3.73 26 500 5890 -5.9 -10.1 72 4.2 -7.7 95 11 325.8 326.6 293.7 337.8 3.55 27 496 5953 -6.3 -13.3 58 7.0 -9.1 94 11 326.1 326.7 293.2 335.5 2.77 28 458 6569 -11.7 -13.6 86 1.9 -12.5 85 13 326.9 327.5 293.5 336.8 2.92 29 451 6686 -12.1 -14.8 80 2.7 -13.1 83 14 327.8 328.4 293.6 337.0 2.69 30 437 6927 -11.7 -19.7 51 8.0 -14.3 80 15 331.3 331.7 293.7 337.8 1.84 31 433 6998 -11.3 -36.3 11 25.0 -16.6 79 15 332.7 332.8 292.9 334.2 0.40 32 400 7600 -15.7 -29.7 29 14.0 -19.1 70 17 334.6 334.7 293.7 337.6 0.81 33 366 8263 -19.3 -28.3 45 9.0 -21.5 51 17 338.4 338.6 294.8 342.2 1.01 34 351 8573 -21.1 -38.1 20 17.0 -24.1 43 17 340.0 340.1 294.7 341.6 0.41 35 326 9112 -25.3 -32.3 52 7.0 -26.7 27 17 341.5 341.7 295.4 344.5 0.78 36 322 9202 -25.9 -33.9 47 8.0 -27.4 25 17 341.9 342.0 295.4 344.5 0.68 37 320 9247 -25.7 -49.7 9 24.0 -28.4 23 17 342.8 342.8 295.1 343.3 0.13 38 315 9360 -26.5 -54.5 5 28.0 -29.2 20 17 343.2 343.2 295.1 343.5 0.07 39 300 9710 -29.3 -51.3 10 22.0 -31.4 10 17 344.1 344.1 295.4 344.6 0.11 40 280 10201 -33.1 -57.1 7 24.0 -34.8 4 16 345.5 345.5 295.7 345.7 0.06 41 250 10990 -39.9 -59.9 10 20.0 -40.9 355 15 346.7 346.8 296.0 347.0 0.05 42 200 12470 -52.7 -67.7 15 15.0 -53.0 335 7 349.3 349.3 296.5 349.4 0.02 43 188 12866 -56.3 -67.3 24 11.0 -56.5 338 8 349.7 349.7 296.6 349.8 0.02 44 153 14141 -66.7 -73.7 37 7.0 -66.8 349 13 353.2 353.2 297.3 353.2 0.01 45 150 14260 -67.7 -76.7 27 9.0 -67.8 350 13 353.5 353.5 297.4 353.5 0.01 46 149 14300 -67.7 -76.7 27 9.0 -67.8 348 13 354.1 354.1 297.5 354.2 0.01 47 144 14505 -68.1 -79.1 19 11.0 -68.2 338 12 356.9 356.9 298.1 356.9 0.01 48 111 16026 -78.5 -81.7 59 3.2 -78.5 263 7 365.0 365.0 299.7 365.0 0.00 49 110 16077 -78.9 -82.3 57 3.4 -78.9 260 7 365.2 365.2 299.7 365.2 0.00 50 100 16620 -77.7 -84.7 31 7.0 -77.7 65 3 377.6 377.6 301.9 377.6 0.00 TRP 110 16077 -78.9 -82.3 57 3.4 -78.9 260 7 365.2 365.2 299.7 365.2 0.00 WND Sounding variables and indices 1000-500 mb thick: 5776.00 m Freezing level: 558.00 mb = 5018.53 m = 16464.80 ft Wetbulb zero: 653.37 mb = 3741.08 m = 12273.73 ft Precipitable water: 1.97 inches Sfc-500 mean rel hum: 64.00 % Est. max temperature: 32.26 C = 90.07 F Sfc-Lift cond lev (LCL): 975.06 mb = 336.55 m = 1104.15 ft T: 25.51 C 700-500 lapse rate: 5.78 C/km ThetaE index: 29.42 C Layer 1000.0- 745.0 mb Conv cond level (CCL): 899.37 mb = 1044.63 m = 3427.22 ft Mean mixing ratio: 17.50 g/kg Conv temperature: 30.96 C = 87.73 F Cap Strength: 1.00 C Lifted Index: -3.93 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -2.43 C Lifted Index @700 mb: -1.53 C Showalter Index: -1.64 C Risk: Thunderstorms probable Total Totals Index: 46.00 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 23.70 C Cross Totals Index: 22.30 C K Index: 27.10 Risk: 40-60 % chance of thunderstorms Sweat Index: 245.80 Risk: None Energy Index: -1.76 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1226.04 J/kg Max Up Vert Vel: 49.52 m/s Conv Inhibition (B-): 7.86 J/kg Cap Strength: 1.00 C Lift Cond Lev (LCL): 924.07 mb = 809.68 m = 2656.40 ft Lev Free Conv (LFC): 869.07 mb = 1341.63 m = 4401.60 ft Equ Level (EL): 149.07 mb = 14297.17 m = 46906.15 ft B at Equ Level: 1200.74 J/kg Wind level data Storm motion: 103 at 10 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 1012 9 0 0 -0.0 -0.0 | 283 10 9.6 -2.2 1 1000 114 50 9 -6.9 -5.8 | 342 8 2.7 -8.0 2 925 801 50 11 -8.4 -7.1 | 353 9 1.1 -9.3 3 850 1534 65 19 -17.2 -8.0 | 37 13 -7.7 -10.2 4 700 3172 75 13 -12.6 -3.4 | 28 6 -3.0 -5.6 5 500 5890 95 11 -11.0 1.0 | 48 2 -1.4 -1.2 6 400 7600 70 17 -16.0 -5.8 | 39 10 -6.4 -8.0 7 300 9710 10 17 -3.0 -16.7 | 341 20 6.6 -18.9 8 250 10990 355 15 1.3 -14.9 | 328 20 10.9 -17.1 9 200 12470 335 7 3.0 -6.3 | 304 15 12.5 -8.5 10 150 14260 350 13 2.3 -12.8 | 322 19 11.8 -15.0 11 110 16077 260 7 6.9 1.2 | 273 16 16.5 -1.0 12 100 16620 65 3 -2.7 -1.3 | 297 8 6.8 -3.5 Wind Parameters Mean winds (0-6000m): 73.0 at 13.1 knts Storm direction: 103.0 at 9.8 knts Shear (0-3000m) pos: 2.3 neg: 0.0 tot: 2.3 10-3/s Storm rel Dir Shear (0-3000m): 107.6 deg Storm rel helicity (0-3000m) pos: 47.1 neg: -2.1 tot: 45.0 m^2/s^2 ave: 15.0 10^-3 m/s^2 rel: 0.71 Storm rel vorticity (0-3000m) horiz: 4.5 stream: 3.2 10^-3/s Energy-Hel index: 0.36 Bulk Rich Number: 240.07 Bulk Shear: 5.11 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 50 8 338 8| 10.4 0.0 10.4| 21.9 0.0 21.9 43.8 0.98| 10.9 10.7 1000 51 10 347 9| 6.8 0.0 6.8| 29.6 0.0 29.6 29.6 0.97| 7.1 6.9 1500 55 12 2 9| 6.4 0.0 6.4| 46.2 0.0 46.2 30.8 0.95| 6.9 6.5 2000 59 13 12 9| 4.4 0.0 4.4| 47.1 -0.2 46.9 23.5 0.88| 5.7 5.0 2500 61 14 17 9| 3.2 0.0 3.2| 47.1 -0.9 46.2 18.5 0.79| 4.9 3.9 3000 63 14 20 9| 2.3 0.0 2.3| 47.1 -2.1 45.0 15.0 0.71| 4.5 3.2 4000 66 14 22 8| 1.6 0.0 1.6| 47.8 -2.5 45.3 11.3 0.66| 3.6 2.4 5000 70 13 24 8| 1.2 0.0 1.2| 48.3 -2.5 45.8 9.2 0.64| 3.1 2.0 6000 73 13 26 7| 1.0 0.0 1.0| 48.6 -2.5 46.1 7.7 0.62| 2.7 1.7 Wrote GIF file: /home/apache/climate/data/raob//VV839/skewt/VV839.skewt.20251019.00.gif