UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120512.upa.cvt Date: 1200Z 5 DEC 25 Searching for FAIR... Searching the city database file for: FAIR ... Date:1200Z 5 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 126 1 925 807 SFC 852 1500 25.4 13.4 47 12.0 17.2 350 5 312.5 314.7 296.1 347.7 11.42 3 850 1547 23.0 12.0 50 11.0 15.7 360 8 310.2 312.2 294.8 342.1 10.42 4 827 1785 20.2 11.2 56 9.0 14.3 344 8 309.7 311.6 294.5 340.7 10.16 5 702 3168 7.2 6.2 93 1.0 6.6 92 6 310.2 311.8 293.4 336.3 8.51 6 700 3192 7.8 3.1 72 4.7 5.1 95 6 311.1 312.4 292.3 332.3 6.85 7 698 3216 6.8 3.0 77 3.8 4.6 96 6 310.3 311.6 292.1 331.3 6.82 8 696 3239 7.8 1.8 66 6.0 4.5 98 6 311.6 312.8 292.0 331.2 6.27 9 695 3251 7.6 1.6 66 6.0 4.3 98 7 311.5 312.7 291.9 330.8 6.19 10 645 3861 2.8 -1.4 74 4.2 0.7 133 12 312.8 313.8 291.6 329.7 5.36 11 606 4364 1.4 -18.6 21 20.0 -5.6 194 9 316.8 317.1 289.3 321.7 1.45 12 581 4703 0.8 -25.2 12 26.0 -7.1 243 6 320.0 320.1 289.6 322.9 0.85 13 573 4815 0.0 -30.0 8 30.0 -8.1 260 6 320.3 320.4 289.5 322.3 0.55 14 500 5890 -8.3 -26.3 22 18.0 -13.2 250 6 322.9 323.1 290.6 326.1 0.89 15 478 6238 -10.9 -30.9 18 20.0 -15.5 257 9 323.9 324.0 290.6 326.1 0.61 16 471 6351 -11.5 -39.5 8 28.0 -16.6 259 10 324.5 324.6 290.4 325.5 0.26 17 456 6599 -12.7 -24.7 36 12.0 -16.0 255 11 326.0 326.3 291.7 330.0 1.13 18 445 6785 -13.1 -36.1 13 23.0 -17.7 251 12 327.8 327.9 291.5 329.3 0.39 19 444 6803 -13.1 -33.1 17 20.0 -17.4 250 13 328.0 328.1 291.7 330.0 0.53 20 438 6906 -13.9 -25.9 36 12.0 -17.1 248 13 328.3 328.5 292.3 332.1 1.06 21 431 7029 -14.7 -36.7 14 22.0 -18.9 245 14 328.8 328.9 291.7 330.2 0.38 22 400 7590 -18.7 -36.7 19 18.0 -21.9 255 15 330.7 330.8 292.3 332.2 0.41 23 386 7854 -20.5 -34.5 27 14.0 -23.1 241 17 331.7 331.8 292.7 333.7 0.53 24 381 7950 -20.9 -36.9 22 16.0 -23.7 236 18 332.4 332.5 292.8 334.0 0.42 25 355 8466 -25.3 -53.3 6 28.0 -27.9 215 21 333.3 333.3 292.7 333.6 0.08 26 300 9660 -35.3 -49.3 23 14.0 -36.4 220 21 335.6 335.6 293.4 336.2 0.14 27 288 9942 -37.9 -49.9 27 12.0 -38.8 223 22 335.8 335.9 293.4 336.4 0.14 28 250 10900 -45.3 -58.3 22 13.0 -45.8 235 27 338.7 338.7 294.1 339.0 0.06 29 230 11451 -49.9 -63.9 18 14.0 -50.3 237 30 339.9 339.9 294.3 340.0 0.03 30 200 12350 -57.9 -65.9 35 8.0 -58.0 240 36 341.1 341.1 294.6 341.2 0.03 31 189 12704 -61.1 -67.1 45 6.0 -61.2 239 37 341.5 341.5 294.7 341.6 0.02 32 175 13179 -63.9 -68.7 52 4.8 -64.0 238 38 344.5 344.5 295.4 344.6 0.02 33 171 13321 -64.7 -69.7 50 5.0 -64.7 237 39 345.4 345.4 295.6 345.5 0.02 34 162 13651 -65.7 -72.7 37 7.0 -65.8 236 40 349.1 349.1 296.4 349.2 0.01 35 150 14120 -64.3 -76.3 18 12.0 -64.4 235 41 359.3 359.3 298.6 359.3 0.01 36 146 14286 -63.9 -76.9 15 13.0 -64.0 231 39 362.8 362.8 299.2 362.8 0.01 37 121 15422 -70.1 -82.1 16 12.0 -70.2 206 24 371.5 371.5 300.8 371.5 0.00 38 112 15880 -71.7 -84.7 13 13.0 -71.8 195 18 376.8 376.8 301.7 376.8 0.00 39 103 16375 -71.9 -84.9 13 13.0 -71.9 162 23 385.5 385.5 303.1 385.5 0.00 40 100 16550 -71.3 -85.3 11 14.0 -71.3 150 25 390.0 390.0 303.8 390.0 0.00 41 95 16854 -69.7 -83.7 11 14.0 -69.8 150 24 398.9 398.9 305.0 398.9 0.00 42 77 18086 -75.1 -86.1 16 11.0 -75.2 150 18 412.3 412.3 306.8 412.3 0.00 43 70 18640 -73.7 -85.7 14 12.0 -73.7 150 15 426.7 426.7 308.5 426.7 0.00 44 59 19647 -69.7 -83.7 11 14.0 -69.8 117 20 457.1 457.1 311.5 457.1 0.01 45 54 20170 -71.9 -85.9 11 14.0 -72.0 100 22 463.7 463.7 312.1 463.8 0.00 46 50 20630 -65.9 -83.9 6 18.0 -66.2 85 24 488.2 488.2 314.1 488.2 0.01 47 38 22309 -62.9 -84.9 4 22.0 -63.4 82 22 535.7 535.7 317.3 535.7 0.01 48 36 22645 -59.3 -84.3 3 25.0 -60.2 82 22 553.4 553.4 318.3 553.4 0.01 49 30 23790 -58.3 -87.3 1 29.0 -59.4 80 21 585.7 585.7 319.9 585.7 0.01 50 28 24223 -58.5 -87.5 1 29.0 -59.6 79 21 596.8 596.8 320.5 596.9 0.01 51 20 26370 -51.1 -85.1 1 34.0 -54.3 75 20 679.8 679.8 323.7 679.9 0.01 52 18 27056 -50.9 -84.9 1 34.0 -54.4 701.2 701.2 324.5 701.3 0.02 TRP 112 15880 -71.7 -84.7 13 13.0 -71.8 195 18 376.8 376.8 301.7 376.8 0.00 WND Sounding variables and indices 1000-500 mb thick: 5764.00 m Freezing level: 573.00 mb = 4814.69 m = 15796.03 ft Wetbulb zero: 640.87 mb = 3912.70 m = 12836.78 ft Precipitable water: 0.82 inches Sfc-500 mean rel hum: 48.10 % Est. max temperature: 23.17 C = 73.70 F Sfc-Lift cond lev (LCL): 714.43 mb = 3020.28 m = 9908.94 ft T: 8.59 C 700-500 lapse rate: 5.97 C/km ThetaE index: 25.99 C Layer 850.0- 581.0 mb Conv cond level (CCL): 713.84 mb = 3027.24 m = 9931.76 ft Mean mixing ratio: 9.83 g/kg Conv temperature: 23.14 C = 73.66 F Cap Strength: 0.84 C Lifted Index: -1.52 C Risk: Thunderstorms probable Lifted Index @300 mb: -1.22 C Lifted Index @700 mb: 0.10 C Showalter Index: -2.34 C Risk: Severe thunderstorms possible Total Totals Index: 51.60 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 31.30 C Cross Totals Index: 20.30 C K Index: 38.60 Risk: > 80 % chance of thunderstorms Sweat Index: 218.00 Risk: None Energy Index: -3.10 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 261.02 J/kg Max Up Vert Vel: 22.85 m/s Conv Inhibition (B-): 2.39 J/kg Cap Strength: 2.48 C Lift Cond Lev (LCL): 716.22 mb = 2999.20 m = 9839.79 ft Lev Free Conv (LFC): 711.22 mb = 3058.35 m = 10033.82 ft Equ Level (EL): 691.22 mb = 3295.61 m = 10812.23 ft B at Equ Level: 0.38 J/kg Max Parcel Lev (MPL): 161.22 mb = 13680.13 m = 44881.76 ft Wind level data Storm motion: 286 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 ---------------------------------------------------------- 0 852 1500 350 5 0.9 -4.9 | 61 6 -5.5 -3.0 1 850 1547 360 8 -0.0 -8.0 | 46 9 -6.4 -6.1 2 793 2134 320 9 5.8 -6.9 | 6 5 -0.6 -5.0 3 765 2438 350 8 1.4 -7.9 | 40 8 -5.0 -6.0 4 700 3192 95 6 -6.0 0.5 | 101 13 -12.3 2.4 5 636 3962 140 13 -8.4 10.0 | 129 19 -14.7 11.8 6 589 4572 225 6 4.2 4.2 | 161 6 -2.1 6.1 7 546 5182 320 6 3.9 -4.6 | 43 4 -2.5 -2.7 8 500 5890 250 6 5.6 2.1 | 170 4 -0.7 3.9 9 468 6401 260 10 9.8 1.7 | 224 5 3.5 3.6 10 432 7010 245 14 12.7 5.9 | 219 10 6.3 7.8 11 400 7590 255 15 14.5 3.9 | 235 10 8.1 5.8 12 366 8230 220 20 12.9 15.3 | 201 18 6.5 17.2 13 336 8839 205 24 10.1 21.8 | 189 24 3.8 23.6 14 300 9660 220 21 13.5 16.1 | 202 19 7.1 18.0 15 250 10900 235 27 22.1 15.5 | 222 23 15.8 17.4 16 200 12350 240 36 31.2 18.0 | 231 32 24.8 19.9 17 150 14120 235 41 33.6 23.5 | 227 37 27.2 25.4 18 112 15880 195 18 4.7 17.4 | 175 19 -1.7 19.3 19 100 16550 150 25 -12.5 21.7 | 141 30 -18.9 23.5 20 70 18640 150 15 -7.5 13.0 | 137 20 -13.9 14.9 21 50 20630 85 24 -23.9 -2.1 | 90 30 -30.3 -0.2 22 30 23790 80 21 -20.7 -3.6 | 86 27 -27.0 -1.8 23 20 26370 75 20 -19.3 -5.2 | 83 26 -25.7 -3.3 Wind Parameters Mean winds (0-6000m): 256.5 at 8.8 knts Storm direction: 286.5 at 6.6 knts Shear (0-3000m) pos: 2.3 neg: 0.8 tot: 3.0 10-3/s Storm rel Dir Shear (0-3000m): 101.0 deg Storm rel helicity (0-3000m) pos: 107.3 neg: -11.5 tot: 95.7 m^2/s^2 ave: 31.9 10^-3 m/s^2 rel: 0.50 Storm rel vorticity (0-3000m) horiz: 8.5 stream: 4.3 10^-3/s Energy-Hel index: 0.08 Bulk Rich Number: 13.96 Bulk Shear: 18.70 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 ------------------------------------------------------------------------------- 500 344 8 34 7| 0.0 4.6 4.6| 0.0 -10.3 -10.3 -20.6 -0.75| 7.5 -5.6 1000 338 8 29 7| 2.2 2.3 4.5| 7.7 -11.5 -3.8 -3.8 -0.14| 7.1 -1.0 1500 351 8 40 8| 4.0 1.5 5.6| 30.2 -11.5 18.6 12.4 0.26| 7.7 2.0 2000 7 8 52 9| 4.3 1.2 5.4| 48.4 -11.5 36.8 18.4 0.38| 7.5 2.8 2500 46 8 72 13| 4.4 0.9 5.3| 79.0 -11.5 67.5 27.0 0.48| 7.6 3.6 3000 82 9 93 15| 2.3 0.8 3.0|107.3 -11.5 95.7 31.9 0.50| 8.5 4.3 4000 46 8 73 13| 0.7 0.6 1.3|108.6 -12.2 96.4 24.1 0.37| 8.3 3.1 5000 275 8 230 2| 0.8 0.5 1.3|113.5 -12.2 101.2 20.2 0.40| 7.5 3.0 6000 256 9 210 5| 0.7 0.7 1.4|119.4 -13.8 105.6 17.6 0.39| 6.8 2.7 Wrote GIF file: /home/apache/climate/data/raob//FAIR/skewt/FAIR.skewt.20251205.12.gif