UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120412.upa.cvt Date: 1200Z 4 DEC 25 Searching for FAIR... Searching the city database file for: FAIR ... Date:1200Z 4 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 167 1 925 836 SFC 854 1500 20.0 14.0 68 6.0 16.0 60 4 306.7 308.9 294.9 342.4 11.85 3 850 1563 19.8 12.8 64 7.0 15.2 0 0 306.9 308.9 294.3 340.0 10.99 4 849 1573 19.8 12.8 64 7.0 15.2 0 0 307.0 309.0 294.4 340.2 11.01 5 848 1583 18.6 11.6 64 7.0 14.1 0 0 305.8 307.7 293.4 336.4 10.17 6 834 1726 16.8 11.8 72 5.0 13.6 1 1 305.4 307.4 293.5 336.8 10.48 7 768 2422 10.4 9.5 94 0.9 9.9 0 6 305.8 307.6 293.1 335.1 9.75 8 764 2466 10.0 9.4 96 0.6 9.6 358 6 305.8 307.6 293.1 335.1 9.74 9 700 3190 6.4 6.4 100 0.0 6.4 295 3 309.6 311.2 293.3 336.0 8.65 10 675 3487 5.2 5.2 100 0.0 5.2 252 5 311.5 313.0 293.6 336.9 8.25 11 658 3693 0.8 0.8 100 0.0 0.8 222 7 308.8 309.9 291.1 327.8 6.17 12 641 3903 -0.7 -0.7 100 0.0 -0.7 191 8 309.4 310.5 290.9 327.0 5.68 13 638 3940 -1.1 -2.9 88 1.8 -2.0 185 9 309.4 310.3 290.1 324.4 4.84 14 629 4053 -1.3 -9.3 54 8.0 -4.6 180 10 310.4 311.0 288.7 320.0 3.00 15 610 4297 -1.3 -17.3 28 16.0 -6.8 180 11 313.1 313.4 288.2 318.5 1.61 16 592 4536 -0.9 -16.9 29 16.0 -6.6 180 13 316.3 316.6 289.3 322.0 1.72 17 529 5423 -6.9 -16.9 45 10.0 -10.4 213 14 319.4 319.8 290.5 325.9 1.92 18 500 5860 -9.9 -28.9 20 19.0 -14.5 220 15 321.0 321.1 289.8 323.5 0.70 19 492 5984 -10.9 -29.9 19 19.0 -15.3 213 16 321.2 321.4 289.8 323.5 0.65 20 482 6142 -9.9 -44.9 4 35.0 -15.7 205 17 324.4 324.4 290.2 324.9 0.14 21 481 6158 -9.9 -44.9 4 35.0 -15.7 204 17 324.5 324.6 290.3 325.1 0.15 22 400 7550 -20.7 -55.7 3 35.0 -24.2 185 15 328.1 328.1 291.2 328.3 0.05 23 300 9610 -38.3 -59.3 9 21.0 -39.3 210 32 331.4 331.4 292.2 331.6 0.04 24 289 9865 -40.3 -61.3 9 21.0 -41.2 216 34 332.1 332.1 292.3 332.2 0.03 25 250 10840 -45.1 -65.1 9 20.0 -45.7 240 42 339.0 339.0 294.1 339.1 0.02 26 229 11422 -48.1 -68.1 8 20.0 -48.6 242 44 343.1 343.1 295.1 343.1 0.02 27 228 11450 -48.3 -68.3 8 20.0 -48.8 242 44 343.2 343.2 295.1 343.3 0.02 28 200 12300 -54.9 -69.9 14 15.0 -55.1 245 46 345.8 345.8 295.7 345.9 0.02 29 172 13249 -62.2 -69.5 37 7.3 -62.3 250 61 349.0 349.0 296.4 349.0 0.02 30 171 13285 -62.5 -69.5 38 7.0 -62.6 249 60 349.1 349.1 296.4 349.2 0.02 31 150 14090 -64.5 -75.5 21 11.0 -64.6 235 46 359.0 359.0 298.5 359.0 0.01 32 145 14296 -65.5 -77.5 17 12.0 -65.6 235 44 360.7 360.7 298.8 360.8 0.01 33 135 14732 -63.5 -80.5 8 17.0 -63.6 236 41 371.7 371.7 300.9 371.7 0.00 34 133 14823 -63.9 -80.9 8 17.0 -64.0 236 40 372.6 372.6 301.0 372.6 0.00 35 103 16356 -71.9 -84.9 13 13.0 -71.9 240 27 385.5 385.5 303.1 385.5 0.00 36 100 16530 -71.9 -83.9 15 12.0 -71.9 240 25 388.8 388.8 303.6 388.8 0.00 37 92 17021 -73.7 -85.7 14 12.0 -73.7 245 24 394.6 394.6 304.5 394.6 0.00 38 80 17841 -73.3 -85.3 14 12.0 -73.3 317 15 411.5 411.5 306.7 411.6 0.00 39 76 18145 -70.3 -84.3 11 14.0 -70.4 343 11 423.9 423.9 308.2 423.9 0.00 40 70 18630 -74.5 -86.5 14 12.0 -74.6 25 6 425.0 425.0 308.3 425.0 0.00 41 68 18798 -74.5 -86.5 14 12.0 -74.6 31 7 428.5 428.5 308.7 428.6 0.00 42 59 19637 -68.1 -85.1 7 17.0 -68.2 58 14 460.7 460.7 311.8 460.7 0.00 43 54 20167 -68.9 -86.9 6 18.0 -69.1 75 18 470.6 470.7 312.7 470.7 0.00 44 50 20630 -66.1 -87.1 4 21.0 -66.4 90 21 487.7 487.7 314.1 487.7 0.00 45 42 21699 -61.7 -87.7 2 26.0 -62.3 90 22 523.6 523.6 316.5 523.6 0.00 46 35 22823 -63.5 -90.5 1 27.0 -64.0 90 23 546.9 546.9 317.9 546.9 0.00 47 30 23780 -59.1 -90.1 1 31.0 -60.1 90 24 583.5 583.5 319.8 583.5 0.00 48 29 23993 -57.7 -89.7 1 32.0 -58.9 90 24 593.1 593.1 320.3 593.1 0.00 49 20 26360 -52.7 -85.7 1 33.0 -55.5 85 19 674.9 674.9 323.6 675.0 0.01 50 16 27807 -50.9 -84.9 1 34.0 -54.6 725.2 725.2 325.2 725.4 0.02 TRP 92 17021 -73.7 -85.7 14 12.0 -73.7 245 24 394.6 394.6 304.5 394.6 0.00 WND 172 13249 -62.2 -69.5 37 7.3 -62.3 250 61 349.0 349.0 296.4 349.0 0.02 Sounding variables and indices 1000-500 mb thick: 5693.00 m Freezing level: 648.93 mb = 3804.92 m = 12483.20 ft Wetbulb zero: 648.93 mb = 3804.28 m = 12481.07 ft Precipitable water: 0.89 inches Sfc-500 mean rel hum: 66.96 % Est. max temperature: 22.53 C = 72.55 F Sfc-Lift cond lev (LCL): 781.43 mb = 2275.55 m = 7465.63 ft T: 11.75 C 700-500 lapse rate: 6.10 C/km ThetaE index: 3.79 C Layer 848.0- 834.0 mb Conv cond level (CCL): 764.00 mb = 2465.52 m = 8088.87 ft Mean mixing ratio: 10.14 g/kg Conv temperature: 19.16 C = 66.49 F Cap Strength: 0.26 C Lifted Index: -1.48 C Risk: Thunderstorms probable Lifted Index @300 mb: -1.93 C Lifted Index @700 mb: -0.07 C Showalter Index: -3.12 C Risk: Severe thunderstorms possible Total Totals Index: 52.40 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 29.70 C Cross Totals Index: 22.70 C K Index: 42.50 Risk: > 80 % chance of thunderstorms Sweat Index: 236.60 Risk: None Energy Index: -3.28 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 328.49 J/kg Max Up Vert Vel: 25.63 m/s Conv Inhibition (B-): 2.97 J/kg Cap Strength: 1.21 C Lift Cond Lev (LCL): 765.00 mb = 2454.66 m = 8053.24 ft Lev Free Conv (LFC): 750.00 mb = 2618.73 m = 8591.51 ft Equ Level (EL): 690.00 mb = 3307.57 m = 10851.49 ft B at Equ Level: 4.22 J/kg Max Parcel Lev (MPL): 200.00 mb = 12300.15 m = 40354.34 ft Wind level data Storm motion: 231 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 ---------------------------------------------------------- 0 854 1500 60 4 -3.5 -2.0 | 54 12 -9.6 -7.0 1 850 1563 0 0 -0.0 -0.0 | 51 8 -6.2 -5.0 2 794 2134 5 4 -0.3 -4.0 | 36 11 -6.5 -9.0 3 766 2438 360 6 -0.0 -6.0 | 29 13 -6.2 -11.0 4 700 3190 295 3 2.7 -1.3 | 29 7 -3.4 -6.3 5 635 3962 180 9 0.0 9.0 | 123 7 -6.2 4.0 6 588 4572 180 13 0.0 13.0 | 142 10 -6.2 8.0 7 545 5182 210 13 6.5 11.3 | 183 6 0.3 6.2 8 500 5860 220 15 9.6 11.5 | 208 7 3.5 6.5 9 466 6401 190 18 3.1 17.7 | 167 13 -3.0 12.7 10 430 7010 200 17 5.8 16.0 | 178 11 -0.3 10.9 11 400 7550 185 15 1.3 14.9 | 154 11 -4.9 9.9 12 364 8230 210 22 11.0 19.1 | 199 15 4.8 14.0 13 334 8839 205 30 12.7 27.2 | 196 23 6.5 22.1 14 300 9610 210 32 16.0 27.7 | 203 25 9.8 22.7 15 250 10840 240 42 36.4 21.0 | 242 34 30.2 16.0 16 200 12300 245 46 41.7 19.4 | 248 38 35.5 14.4 17 172 13249 250 61 57.3 20.9 | 253 54 51.2 15.8 18 150 14090 235 46 37.7 26.4 | 236 38 31.5 21.3 19 100 16530 240 25 21.7 12.5 | 244 17 15.5 7.5 20 92 17021 245 24 21.8 10.1 | 252 16 15.6 5.1 21 70 18630 25 6 -2.5 -5.4 | 40 14 -8.7 -10.5 22 50 20630 90 21 -21.0 0.0 | 79 28 -27.2 -5.0 23 30 23780 90 24 -24.0 0.0 | 81 31 -30.2 -5.0 24 20 26360 85 19 -18.9 -1.7 | 75 26 -25.1 -6.7 Wind Parameters Mean winds (0-6000m): 200.7 at 10.6 knts Storm direction: 230.7 at 8.0 knts Shear (0-3000m) pos: 0.0 neg: 2.6 tot: 2.6 10-3/s Storm rel Dir Shear (0-3000m): 86.7 deg Storm rel helicity (0-3000m) pos: 8.9 neg: -17.3 tot: -8.4 m^2/s^2 ave: -2.8 10^-3 m/s^2 rel: 0.01 Storm rel vorticity (0-3000m) horiz: 5.5 stream: 0.1 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 16.80 Bulk Shear: 19.56 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 9 2 44 9| 0.0 3.5 3.5| 0.0 -6.3 -6.3 -12.5 -0.38| 6.9 -2.6 1000 4 3 38 10| 0.0 2.8 2.8| 0.0 -12.9 -12.9 -12.9 -0.47| 5.1 -2.4 1500 354 4 33 10| 0.0 2.2 2.2| 0.3 -15.5 -15.2 -10.2 -0.39| 4.8 -1.9 2000 339 4 29 10| 0.0 2.4 2.4| 1.5 -17.1 -15.6 -7.8 -0.30| 5.0 -1.5 2500 315 5 20 9| 0.0 2.4 2.4| 3.6 -17.3 -13.7 -5.5 -0.07| 6.0 -0.4 3000 207 6 90 4| 0.0 2.6 2.6| 8.9 -17.3 -8.4 -2.8 0.01| 5.5 0.1 4000 201 8 120 4| 1.0 1.9 3.0| 23.9 -17.3 6.6 1.7 0.19| 5.2 1.0 5000 204 9 145 4| 0.8 2.1 2.9| 27.6 -35.6 -8.0 -1.6 0.05| 5.3 0.3 6000 201 11 154 5| 0.9 1.7 2.6| 33.8 -47.7 -13.9 -2.3 0.01| 5.0 0.0 Wrote GIF file: /home/apache/climate/data/raob//FAIR/skewt/FAIR.skewt.20251204.12.gif