UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025121012.upa.cvt Date: 1200Z 10 DEC 25 Searching for FAIR... Searching the city database file for: FAIR ... Date:1200Z 10 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 83 1 925 770 2 850 1516 30 3 SFC 849 1500 28.0 14.0 42 14.0 18.4 30 3 315.6 317.9 297.2 352.8 11.92 4 846 1532 26.0 11.0 39 15.0 16.1 29 3 313.8 315.7 295.3 344.2 9.79 5 709 3074 11.6 7.0 73 4.6 8.8 352 3 314.2 315.9 294.8 341.9 8.90 6 700 3183 10.8 5.8 71 5.0 7.8 345 2 314.4 316.0 294.4 340.3 8.29 7 678 3449 8.8 4.7 75 4.1 6.3 314 4 315.1 316.6 294.3 339.9 7.93 8 577 4762 -0.9 -6.9 64 6.0 -3.7 210 11 318.6 319.4 292.1 331.5 3.95 9 575 4790 -1.3 -7.3 64 6.0 -4.0 210 12 318.5 319.2 292.0 331.0 3.84 10 542 5259 -4.5 -16.5 39 12.0 -8.8 211 15 320.1 320.5 290.7 326.6 1.94 11 522 5554 -6.5 -16.5 45 10.0 -10.1 215 13 321.1 321.5 291.1 327.9 2.02 12 515 5660 -7.5 -11.5 73 4.0 -9.1 217 13 321.2 321.8 292.1 331.4 3.08 13 512 5705 -7.5 -17.5 45 10.0 -10.9 217 13 321.7 322.1 291.2 328.1 1.89 14 500 5890 -8.7 -15.7 57 7.0 -11.2 220 12 322.4 322.9 291.7 330.0 2.25 15 498 5921 -9.1 -15.1 62 6.0 -11.3 220 12 322.3 322.8 291.8 330.3 2.38 16 496 5952 -9.3 -17.3 52 8.0 -12.1 220 12 322.4 322.8 291.5 329.2 1.98 17 495 5968 -8.9 -21.9 34 13.0 -12.9 220 11 323.1 323.4 291.1 327.8 1.34 18 488 6078 -9.7 -25.7 26 16.0 -14.0 220 11 323.5 323.6 290.8 326.9 0.97 19 420 7223 -14.9 -42.9 7 28.0 -19.5 255 14 331.0 331.0 292.2 331.8 0.21 20 417 7277 -15.3 -44.3 6 29.0 -19.8 255 14 331.1 331.2 292.2 331.8 0.18 21 400 7590 -17.9 -46.9 6 29.0 -21.9 255 15 331.7 331.8 292.3 332.3 0.14 22 300 9670 -33.7 -53.7 12 20.0 -35.1 235 30 337.9 337.9 293.9 338.2 0.09 23 250 10920 -44.7 -58.7 19 14.0 -45.3 230 33 339.6 339.6 294.3 339.8 0.06 24 230 11473 -49.7 -60.7 26 11.0 -50.0 226 44 340.2 340.2 294.4 340.4 0.05 25 204 12253 -54.2 -67.7 17 13.6 -54.4 220 61 345.0 345.0 295.6 345.1 0.02 26 200 12380 -54.9 -68.9 16 14.0 -55.1 220 58 345.8 345.8 295.7 345.9 0.02 27 182 12978 -57.3 -71.3 15 14.0 -57.5 227 50 351.4 351.4 297.0 351.4 0.01 28 151 14130 -66.9 -74.9 31 8.0 -67.0 240 36 354.2 354.2 297.5 354.2 0.01 29 150 14170 -67.1 -74.1 36 7.0 -67.1 240 35 354.5 354.5 297.6 354.5 0.01 30 149 14210 -67.3 -74.3 36 7.0 -67.4 240 35 354.8 354.8 297.7 354.9 0.01 31 146 14333 -67.9 -74.9 36 7.0 -67.9 240 34 355.9 355.9 297.9 355.9 0.01 32 140 14586 -66.1 -76.1 23 10.0 -66.2 239 31 363.3 363.3 299.4 363.4 0.01 33 114 15806 -74.3 -82.3 28 8.0 -74.3 235 20 370.0 370.0 300.6 370.1 0.00 34 107 16176 -73.5 -83.5 20 10.0 -73.5 223 20 378.3 378.3 302.0 378.3 0.00 35 102 16455 -74.7 -84.7 20 10.0 -74.7 214 21 381.2 381.2 302.5 381.2 0.00 36 100 16570 -74.5 -85.5 17 11.0 -74.5 210 21 383.8 383.8 302.9 383.8 0.00 37 81 17789 -77.7 -86.7 22 9.0 -77.7 192 9 401.1 401.1 305.3 401.1 0.00 38 78 18008 -74.3 -84.3 20 10.0 -74.3 189 7 412.5 412.5 306.8 412.5 0.00 39 70 18640 -73.9 -84.9 17 11.0 -74.0 180 1 426.3 426.3 308.4 426.3 0.00 40 65 19071 -73.3 -85.3 14 12.0 -73.3 158 5 436.7 436.7 309.6 436.7 0.00 41 52 20394 -66.9 -84.9 6 18.0 -67.1 92 17 480.4 480.4 313.5 480.4 0.01 42 50 20630 -67.3 -85.3 6 18.0 -67.5 80 19 484.9 484.9 313.8 484.9 0.01 43 48 20876 -68.3 -86.3 6 18.0 -68.5 76 19 488.2 488.2 314.1 488.2 0.00 44 43 21547 -62.7 -85.7 3 23.0 -63.1 67 19 517.6 517.6 316.1 517.6 0.01 45 36 22643 -63.3 -89.3 2 26.0 -63.8 51 19 543.0 543.0 317.7 543.0 0.00 46 30 23780 -57.7 -89.7 1 32.0 -58.9 35 19 587.3 587.3 320.0 587.4 0.00 47 29 23995 -56.3 -88.3 1 32.0 -57.8 596.9 596.9 320.5 597.0 0.01 48 24 25198 -55.7 -87.7 1 32.0 -57.5 631.9 631.9 322.0 631.9 0.01 TRP 114 15806 -74.3 -82.3 28 8.0 -74.3 235 20 370.0 370.0 300.6 370.1 0.00 WND 204 12253 -54.2 -67.7 17 13.6 -54.4 220 61 345.0 345.0 295.6 345.1 0.02 Sounding variables and indices 1000-500 mb thick: 5807.00 m Freezing level: 586.37 mb = 4639.95 m = 15222.76 ft Wetbulb zero: 614.01 mb = 4255.64 m = 13961.89 ft Sfc-500 mean rel hum: 59.90 % Est. max temperature: 26.94 C = 80.49 F Sfc-Lift cond lev (LCL): 692.03 mb = 3278.25 m = 10755.27 ft T: 10.08 C 700-500 lapse rate: 7.20 C/km ThetaE index: 26.13 C Layer 846.0- 522.0 mb Conv cond level (CCL): 656.20 mb = 3714.59 m = 12186.82 ft Mean mixing ratio: 9.52 g/kg Conv temperature: 28.24 C = 82.83 F Cap Strength: 1.13 C Lifted Index: -3.39 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -1.73 C Lifted Index @700 mb: 0.40 C Parcel Indices Parcel: using 100 mb layer CAPE (B+): 596.59 J/kg Max Up Vert Vel: 34.54 m/s Conv Inhibition (B-): 19.22 J/kg Cap Strength: 1.52 C Lift Cond Lev (LCL): 672.89 mb = 3510.13 m = 11516.02 ft Lev Free Conv (LFC): 627.89 mb = 4073.66 m = 13364.85 ft Equ Level (EL): 207.89 mb = 12130.13 m = 39796.53 ft B at Equ Level: 586.12 J/kg Max Parcel Lev (MPL): 137.89 mb = 14676.10 m = 48149.36 ft Wind level data Storm motion: 266 at 7 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 ---------------------------------------------------------- 0 849 1500 30 3 -1.5 -2.6 | 69 9 -8.2 -3.1 1 790 2134 15 7 -1.8 -6.8 | 49 11 -8.5 -7.3 2 762 2438 30 6 -3.0 -5.2 | 59 11 -9.7 -5.7 3 700 3183 345 2 0.5 -1.9 | 68 7 -6.2 -2.5 4 635 3962 250 7 6.6 2.4 | 177 2 -0.1 1.9 5 589 4572 210 10 5.0 8.7 | 168 8 -1.7 8.1 6 546 5182 210 15 7.5 13.0 | 184 12 0.8 12.5 7 500 5890 220 12 7.7 9.2 | 187 9 1.0 8.7 8 468 6401 220 8 5.1 6.1 | 165 6 -1.5 5.6 9 432 7010 255 14 13.5 3.6 | 246 8 6.8 3.1 10 400 7590 255 15 14.5 3.9 | 247 8 7.8 3.4 11 366 8230 245 21 19.0 8.9 | 236 15 12.3 8.4 12 337 8839 235 24 19.7 13.8 | 224 19 13.0 13.2 13 300 9670 235 30 24.6 17.2 | 227 24 17.9 16.7 14 250 10920 230 33 25.3 21.2 | 222 28 18.6 20.7 15 204 12253 220 61 39.2 46.7 | 215 57 32.5 46.2 16 200 12380 220 58 37.3 44.4 | 215 54 30.6 43.9 17 150 14170 240 35 30.3 17.5 | 234 29 23.6 17.0 18 114 15806 235 20 16.4 11.5 | 222 15 9.7 11.0 19 100 16570 210 21 10.5 18.2 | 192 18 3.8 17.7 20 70 18640 180 1 0.0 1.0 | 94 7 -6.7 0.5 21 50 20630 80 19 -18.7 -3.3 | 81 26 -25.4 -3.8 22 30 23780 35 19 -10.9 -15.6 | 48 24 -17.6 -16.1 Wind Parameters Mean winds (0-6000m): 235.5 at 8.9 knts Storm direction: 265.5 at 6.7 knts Shear (0-3000m) pos: 0.2 neg: 2.1 tot: 2.3 10-3/s Storm rel Dir Shear (0-3000m): 101.7 deg Storm rel helicity (0-3000m) pos: 7.8 neg: -13.7 tot: -5.9 m^2/s^2 ave: -2.0 10^-3 m/s^2 rel: -0.05 Storm rel vorticity (0-3000m) horiz: 4.4 stream: -0.2 10^-3/s Energy-Hel index: 0.03 Bulk Rich Number: 26.89 Bulk Shear: 22.19 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 21 5 60 10| 0.0 3.4 3.4| 0.0 -6.9 -6.9 -13.8 -0.81| 3.4 -2.7 1000 21 6 57 10| 0.5 1.7 2.2| 4.8 -8.6 -3.8 -3.8 -0.27| 3.1 -0.8 1500 20 5 58 10| 0.3 0.9 1.2| 6.0 -9.1 -3.1 -2.1 -0.13| 3.3 -0.4 2000 14 5 58 9| 0.2 1.4 1.6| 7.3 -11.7 -4.5 -2.2 -0.17| 3.4 -0.6 2500 356 5 50 8| 0.2 2.0 2.2| 7.7 -12.2 -4.4 -1.8 -0.02| 4.2 -0.1 3000 318 5 34 5| 0.2 2.1 2.3| 7.8 -13.7 -5.9 -2.0 -0.05| 4.4 -0.2 4000 235 7 169 4| 0.1 2.1 2.1| 15.9 -14.1 1.8 0.4 0.05| 4.2 0.2 5000 227 8 171 5| 0.5 1.7 2.2| 18.3 -19.1 -0.8 -0.2 0.01| 4.1 0.0 6000 236 9 189 5| 0.9 1.4 2.2| 31.0 -19.1 11.9 2.0 0.16| 4.2 0.7 Wrote GIF file: /home/apache/climate/data/raob//FAIR/skewt/FAIR.skewt.20251210.12.gif