UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025121200.upa.cvt Date: 0000Z 12 DEC 25 Searching for FAIR... Searching the city database file for: FAIR ... Date:0000Z 12 DEC 25 Station: FAIR WMO ident: 68263 Latitude: -25.92 Longitude: 28.22 Elevation: 1500.00 ------------------------------------------------------------------------------- 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 ------------------------------------------------------------------------------- 0 1000 159 1 925 822 SFC 851 1500 17.0 14.8 87 2.2 15.5 30 5 303.9 306.2 294.6 341.1 12.54 3 850 1540 18.4 14.9 80 3.5 16.0 30 1 305.4 307.8 295.1 343.2 12.64 4 849 1550 19.0 15.0 78 4.0 16.3 29 1 306.2 308.5 295.4 344.4 12.73 5 848 1560 16.6 13.4 81 3.2 14.5 29 2 303.7 305.9 293.8 337.9 11.47 6 847 1570 18.6 13.7 73 4.9 15.4 28 2 305.9 308.1 294.6 341.1 11.71 7 812 1931 15.2 11.7 80 3.5 13.0 7 13 306.0 308.0 293.9 338.2 10.70 8 730 2823 8.4 8.1 98 0.3 8.2 14 13 308.1 309.8 293.4 336.4 9.33 9 728 2846 7.8 6.9 94 0.9 7.3 15 13 307.7 309.3 292.7 333.8 8.61 10 727 2857 8.2 5.5 83 2.7 6.6 16 13 308.2 309.7 292.3 332.1 7.82 11 725 2880 11.4 1.4 50 10.0 5.9 18 12 312.0 313.1 291.7 330.2 5.85 12 724 2892 11.6 0.6 47 11.0 5.6 19 12 312.3 313.4 291.6 329.6 5.53 13 720 2938 11.4 0.4 47 11.0 5.4 22 12 312.6 313.6 291.6 329.8 5.48 14 709 3067 10.6 -1.4 43 12.0 4.3 32 11 313.1 314.0 291.3 328.4 4.87 15 700 3173 9.6 -1.4 46 11.0 3.8 40 10 313.1 314.1 291.3 328.7 4.93 16 621 4150 0.6 -4.1 71 4.7 -1.7 2 12 313.7 314.6 291.2 328.1 4.55 17 620 4163 0.6 -4.2 70 4.8 -1.7 360 11 313.9 314.7 291.2 328.2 4.52 18 613 4254 0.2 -6.8 59 7.0 -3.0 342 11 314.4 315.1 290.7 326.4 3.75 19 607 4333 2.2 -24.8 11 27.0 -6.1 328 10 317.6 317.8 288.9 320.5 0.84 20 600 4427 2.6 -33.4 5 36.0 -6.7 310 9 319.1 319.2 288.9 320.5 0.38 21 595 4495 2.2 -35.8 4 38.0 -7.1 297 9 319.4 319.5 288.9 320.5 0.30 22 559 4995 -1.3 -27.3 12 26.0 -8.7 219 9 321.0 321.2 289.9 323.6 0.73 23 518 5601 -2.7 -47.7 2 45.0 -11.0 273 8 326.4 326.4 290.8 326.8 0.10 24 500 5880 -4.9 -39.9 4 35.0 -12.2 330 8 327.1 327.1 291.2 328.0 0.24 25 400 7590 -17.9 -44.9 7 27.0 -21.8 315 15 331.7 331.8 292.4 332.4 0.17 26 352 8532 -24.9 -49.9 8 25.0 -27.6 295 15 334.6 334.7 293.1 335.1 0.11 27 340 8783 -26.5 -51.5 8 25.0 -28.9 291 14 335.8 335.8 293.4 336.2 0.10 28 336 8869 -25.9 -54.9 5 29.0 -28.6 289 14 337.8 337.8 293.9 338.0 0.07 29 332 8956 -25.9 -47.9 11 22.0 -28.4 284 16 338.9 338.9 294.2 339.5 0.15 30 300 9680 -32.1 -39.1 50 7.0 -33.0 240 30 340.1 340.2 294.7 341.8 0.43 31 287 9991 -34.7 -39.7 60 5.0 -35.3 239 35 340.8 340.8 294.9 342.4 0.42 32 273 10338 -37.7 -44.7 48 7.0 -38.4 237 40 341.3 341.4 294.9 342.4 0.26 33 250 10940 -41.9 -51.9 33 10.0 -42.5 235 49 343.8 343.8 295.3 344.3 0.13 34 233 11413 -45.5 -57.5 25 12.0 -46.0 238 55 345.3 345.3 295.7 345.6 0.07 35 200 12410 -54.3 -60.3 48 6.0 -54.5 245 69 346.8 346.8 296.0 347.0 0.06 36 185 12904 -58.3 -63.2 53 4.9 -58.4 245 70 348.1 348.1 296.3 348.3 0.04 37 158 13877 -66.4 -72.2 44 5.8 -66.4 245 72 350.5 350.5 296.7 350.5 0.01 38 154 14031 -67.7 -73.7 42 6.0 -67.7 243 62 350.8 350.8 296.8 350.9 0.01 39 150 14190 -66.7 -73.7 37 7.0 -66.8 240 51 355.2 355.2 297.7 355.2 0.01 40 139 14650 -68.3 -77.3 26 9.0 -68.4 254 43 360.2 360.2 298.7 360.2 0.01 41 138 14694 -68.7 -77.7 26 9.0 -68.8 255 42 360.2 360.2 298.8 360.3 0.01 42 120 15523 -73.9 -80.9 33 7.0 -73.9 280 27 365.4 365.4 299.7 365.4 0.00 43 112 15928 -72.9 -81.9 24 9.0 -72.9 274 19 374.5 374.5 301.4 374.6 0.00 44 104 16361 -74.9 -83.9 23 9.0 -74.9 268 10 378.7 378.7 302.1 378.8 0.00 45 100 16590 -74.1 -84.1 20 10.0 -74.2 265 5 384.6 384.6 303.0 384.6 0.00 46 79 17954 -77.1 -86.1 22 9.0 -77.1 405.2 405.2 305.9 405.2 0.00 TRP 120 15523 -73.9 -80.9 33 7.0 -73.9 280 27 365.4 365.4 299.7 365.4 0.00 WND 158 13877 -66.4 -72.2 44 5.8 -66.4 245 72 350.5 350.5 296.7 350.5 0.01 Sounding variables and indices 1000-500 mb thick: 5721.00 m Freezing level: 572.37 mb = 4809.22 m = 15778.08 ft Wetbulb zero: 645.09 mb = 3839.54 m = 12596.77 ft Precipitable water: 0.78 inches Sfc-500 mean rel hum: 46.35 % Est. max temperature: 25.84 C = 78.51 F Sfc-Lift cond lev (LCL): 823.70 mb = 1808.39 m = 5932.97 ft T: 16.35 C 700-500 lapse rate: 5.36 C/km ThetaE index: 11.49 C Layer 812.0- 720.0 mb Conv cond level (CCL): 754.02 mb = 2551.53 m = 8371.06 ft Mean mixing ratio: 10.61 g/kg Conv temperature: 20.45 C = 68.81 F Cap Strength: 3.12 C Lifted Index: 2.52 C Risk: None Lifted Index @300 mb: 2.92 C Lifted Index @700 mb: 2.43 C Showalter Index: 0.59 C Risk: Thunderstorms probable Total Totals Index: 43.10 C Risk: None Vertical Totals Index: 23.30 C Cross Totals Index: 19.80 C K Index: 27.20 Risk: 40-60 % chance of thunderstorms Sweat Index: 188.80 Risk: None Energy Index: -2.90 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 25.63 J/kg Max Up Vert Vel: 7.16 m/s Conv Inhibition (B-): 5.44 J/kg Cap Strength: 3.04 C Lift Cond Lev (LCL): 764.81 mb = 2432.41 m = 7980.24 ft Lev Free Conv (LFC): 739.81 mb = 2711.02 m = 8894.33 ft Equ Level (EL): 729.81 mb = 2825.09 m = 9268.54 ft B at Equ Level: 4.30 J/kg Max Parcel Lev (MPL): 719.81 mb = 2940.07 m = 9645.78 ft Wind level data Storm motion: 20 at 8 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 ---------------------------------------------------------- 0 851 1500 30 5 -2.5 -4.3 | 183 3 0.2 3.2 1 850 1540 30 1 -0.5 -0.9 | 198 7 2.2 6.7 2 792 2134 355 20 1.7 -19.9 | 340 13 4.4 -12.4 3 764 2438 345 16 4.1 -15.5 | 319 10 6.8 -7.9 4 700 3173 40 10 -6.4 -7.7 | 89 4 -3.7 -0.1 5 635 3962 35 13 -7.5 -10.6 | 57 6 -4.8 -3.1 6 588 4572 280 8 7.9 -1.4 | 240 12 10.6 6.2 7 545 5182 190 9 1.6 8.9 | 194 17 4.2 16.4 8 500 5880 330 8 4.0 -6.9 | 265 7 6.7 0.6 9 467 6401 340 7 2.4 -6.6 | 259 5 5.1 1.0 10 431 7010 335 12 5.1 -10.9 | 293 8 7.8 -3.3 11 400 7590 315 15 10.6 -10.6 | 283 14 13.3 -3.0 12 366 8230 300 15 13.0 -7.5 | 270 16 15.7 0.1 13 337 8839 290 14 13.2 -4.8 | 260 16 15.8 2.8 14 300 9680 240 30 26.0 15.0 | 232 36 28.7 22.6 15 250 10940 235 49 40.1 28.1 | 230 56 42.8 35.7 16 200 12410 245 69 62.5 29.2 | 241 75 65.2 36.7 17 158 13877 245 72 65.3 30.4 | 241 78 67.9 38.0 18 150 14190 240 51 44.2 25.5 | 235 57 46.8 33.1 19 120 15523 280 27 26.6 -4.7 | 264 29 29.3 2.9 20 100 16590 265 5 5.0 0.4 | 224 11 7.7 8.0 Wind Parameters Mean winds (0-6000m): 349.5 at 10.7 knts Storm direction: 19.5 at 8.0 knts Shear (0-3000m) pos: 2.0 neg: 3.6 tot: 5.6 10-3/s Storm rel Dir Shear (0-3000m): 65.5 deg Storm rel helicity (0-3000m) pos: 16.9 neg: -47.3 tot: -30.4 m^2/s^2 ave: -10.1 10^-3 m/s^2 rel: -0.15 Storm rel vorticity (0-3000m) horiz: 10.6 stream: -1.5 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 15.98 Bulk Shear: 1.60 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 5 8 288 2| 0.0 11.8 11.8| 1.4 -0.8 0.7 1.4 0.31| 17.2 5.3 1000 353 13 322 7| 0.0 6.2 6.2| 2.6 -15.7 -13.2 -13.2 0.02| 13.6 0.3 1500 357 13 329 7| 3.2 4.2 7.4| 14.4 -15.7 -1.3 -0.9 0.23| 12.4 2.8 2000 5 13 341 5| 3.0 3.1 6.1| 16.9 -16.8 0.1 0.0 0.25| 10.3 2.6 2500 11 12 357 5| 2.4 3.0 5.4| 16.9 -20.5 -3.6 -1.4 0.17| 8.9 1.5 3000 9 12 351 4| 2.0 3.6 5.6| 16.9 -47.3 -30.4 -10.1 -0.15| 10.6 -1.5 4000 1 11 327 4| 0.9 2.3 3.2| 54.5-100.2 -45.7 -11.4 -0.16| 11.0 -1.7 5000 357 11 312 4| 1.5 1.9 3.4| 77.3-101.0 -23.7 -4.7 -0.06| 10.2 -0.6 6000 350 11 303 5| 1.2 2.1 3.3| 82.4-105.4 -23.0 -3.8 -0.04| 9.3 -0.4 Wrote GIF file: /home/apache/climate/data/raob//FAIR/skewt/FAIR.skewt.20251212.00.gif