UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120800.upa.cvt Date: 0000Z 8 DEC 25 Searching for U4908... Searching the city database file for: U4908 ... Date:0000Z 8 DEC 25 Station: U4908 WMO ident: 24908 Latitude: 60.33 Longitude: 102.27 ------------------------------------------------------------------------------- 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 174 SFC 988 258 -34.7 -37.9 73 3.2 -34.8 40 1 239.3 239.3 239.1 239.7 0.15 2 964 432 -30.9 -34.9 68 4.0 -31.2 18 3 244.8 244.8 244.4 245.4 0.20 3 925 725 -30.9 -34.6 70 3.7 -31.1 340 7 247.7 247.7 247.1 248.3 0.22 4 922 748 -30.9 -34.6 70 3.7 -31.1 340 7 247.9 248.0 247.3 248.6 0.22 5 899 928 -28.3 -32.1 70 3.8 -28.6 337 8 252.4 252.5 251.4 253.2 0.29 6 855 1286 -30.3 -33.9 71 3.6 -30.6 331 9 254.0 254.0 252.7 254.7 0.25 7 850 1328 -30.5 -34.1 71 3.6 -30.7 330 9 254.2 254.2 252.9 254.9 0.25 8 788 1863 -33.7 -37.3 70 3.6 -33.9 307 8 256.3 256.4 254.5 256.9 0.20 9 700 2690 -35.5 -39.2 69 3.7 -35.7 270 7 263.2 263.2 260.0 263.7 0.18 10 658 3118 -36.9 -40.6 68 3.7 -37.1 263 8 266.3 266.3 262.3 266.8 0.17 11 563 4183 -42.1 -45.4 70 3.3 -42.2 244 11 272.3 272.3 266.5 272.7 0.12 12 500 4980 -44.9 -48.1 70 3.2 -45.0 230 13 278.3 278.3 270.3 278.6 0.10 13 466 5452 -46.1 -49.6 68 3.5 -46.2 233 13 282.5 282.5 272.8 282.8 0.09 14 402 6427 -50.9 -55.0 62 4.1 -51.0 240 13 288.4 288.4 275.9 288.6 0.05 15 400 6460 -51.1 -55.3 61 4.2 -51.2 240 13 288.6 288.6 276.0 288.8 0.05 16 326 7779 -55.1 -59.9 55 4.8 -55.2 305 7 300.5 300.5 281.6 300.6 0.04 17 300 8310 -55.3 -60.3 54 5.0 -55.4 300 13 307.4 307.4 284.4 307.5 0.04 18 292 8482 -55.7 -60.7 54 5.0 -55.8 298 13 309.2 309.2 285.1 309.4 0.04 19 250 9470 -54.3 -60.3 48 6.0 -54.4 285 11 325.3 325.3 290.4 325.5 0.05 20 200 10900 -54.1 -61.1 42 7.0 -54.3 285 21 347.1 347.1 296.0 347.3 0.05 21 185 11397 -55.1 -62.1 42 7.0 -55.3 285 22 353.3 353.3 297.4 353.5 0.05 22 150 12730 -56.1 -64.1 36 8.0 -56.3 285 23 373.4 373.4 301.2 373.6 0.05 23 100 15300 -57.7 -67.7 27 10.0 -58.0 280 33 416.2 416.3 307.3 416.5 0.04 24 76 17019 -60.1 -70.1 26 10.0 -60.4 280 38 445.2 445.2 310.4 445.4 0.04 25 70 17530 -61.7 -71.7 25 10.0 -62.0 280 40 452.4 452.4 311.1 452.6 0.03 26 59 18582 -64.3 -74.3 24 10.0 -64.5 469.2 469.2 312.6 469.4 0.03 TRP 326 7779 -55.1 -59.9 55 4.8 -55.2 305 7 300.5 300.5 281.6 300.6 0.04 WND Sounding variables and indices 1000-500 mb thick: 4806.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.05 inches Sfc-500 mean rel hum: 69.61 % Est. max temperature: -19.43 C = -2.97 F Sfc-Lift cond lev (LCL): 935.14 mb = 647.56 m = 2124.51 ft T: -30.90 C 700-500 lapse rate: 4.10 C/km ThetaE index: 0.00 C Layer 988.0--28882151778513119643386622509056.0 mb Conv cond level (CCL): 988.00 mb = 258.40 m = 847.77 ft Mean mixing ratio: 0.22 g/kg Conv temperature: -33.79 C = -28.83 F Cap Strength: 20.99 C Lifted Index: 25.16 C Risk: None Lifted Index @300 mb: 42.36 C Lifted Index @700 mb: 14.23 C Showalter Index: 19.24 C Risk: None Total Totals Index: 25.20 C Risk: None Vertical Totals Index: 14.40 C Cross Totals Index: 10.80 C K Index: -23.40 Risk: None Sweat Index: 31.00 Risk: None Energy Index: 4.97 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 43.56 J/kg Max Up Vert Vel: 9.33 m/s Conv Inhibition (B-): 39671.93 J/kg Cap Strength: 25.09 C Lift Cond Lev (LCL): 881.10 mb = 1071.65 m = 3515.88 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 289 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 ---------------------------------------------------------- 0 988 258 40 1 -0.6 -0.8 | 102 8 -7.4 1.6 1 925 725 340 7 2.4 -6.6 | 46 6 -4.4 -4.2 2 850 1328 330 9 4.5 -7.8 | 23 6 -2.3 -5.5 3 700 2690 270 7 7.0 -0.0 | 185 2 0.2 2.3 4 500 4980 230 13 10.0 8.4 | 197 11 3.2 10.7 5 400 6460 240 13 11.3 6.5 | 207 10 4.5 8.8 6 326 7779 305 7 5.7 -4.0 | 32 2 -1.0 -1.7 7 300 8310 300 13 11.3 -6.5 | 313 6 4.5 -4.2 8 250 9470 285 11 10.6 -2.8 | 278 4 3.8 -0.5 9 200 10900 285 21 20.3 -5.4 | 283 14 13.5 -3.1 10 150 12730 285 23 22.2 -6.0 | 283 16 15.4 -3.6 11 100 15300 280 33 32.5 -5.7 | 278 26 25.7 -3.4 12 70 17530 280 40 39.4 -6.9 | 278 33 32.6 -4.6 Wind Parameters Mean winds (0-6000m): 258.9 at 9.6 knts Storm direction: 288.9 at 7.2 knts Shear (0-3000m) pos: 0.0 neg: 1.6 tot: 1.6 10-3/s Storm rel Dir Shear (0-3000m): 100.8 deg Storm rel helicity (0-3000m) pos: 0.7 neg: -19.7 tot: -19.1 m^2/s^2 ave: -6.4 10^-3 m/s^2 rel: -0.62 Storm rel vorticity (0-3000m) horiz: 3.5 stream: -2.2 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 3.15 Bulk Shear: 13.84 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 ------------------------------------------------------------------------------- 500 346 4 73 6| 0.0 6.9 6.9| 0.0 -13.9 -13.9 -27.7 -0.96| 7.8 -7.4 1000 339 6 54 6| 0.0 4.4 4.4| 0.0 -17.1 -17.1 -17.1 -0.96| 4.9 -4.8 1500 332 7 43 5| 0.0 2.9 2.9| 0.0 -18.9 -18.9 -12.6 -0.84| 4.4 -3.7 2000 324 7 36 4| 0.0 2.1 2.1| 0.0 -19.4 -19.4 -9.7 -0.76| 4.1 -3.1 2500 316 7 32 3| 0.0 1.6 1.6| 0.1 -19.7 -19.7 -7.9 -0.72| 3.8 -2.8 3000 307 7 24 2| 0.0 1.6 1.6| 0.7 -19.7 -19.1 -6.4 -0.62| 3.5 -2.2 4000 288 8 276 1| 0.0 1.5 1.5| 0.9 -20.3 -19.4 -4.8 -0.53| 3.1 -1.7 5000 269 9 219 3| 0.0 1.4 1.4| 1.8 -22.7 -21.0 -4.2 -0.48| 2.9 -1.4 6000 259 10 212 5| 0.1 1.2 1.3| 5.3 -22.7 -17.4 -2.9 -0.41| 2.5 -1.0 Wrote GIF file: /home/apache/climate/data/raob//U4908/skewt/U4908.skewt.20251208.00.gif