UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120912.upa.cvt Date: 1200Z 9 DEC 25 Searching for U6781... Searching the city database file for: U6781 ... Date:1200Z 9 DEC 25 Station: U6781 WMO ident: 26781 Latitude: 54.75 Longitude: 32.07 ------------------------------------------------------------------------------- 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 141 SFC 987 246 -0.3 -1.8 90 1.5 -0.9 180 9 273.9 274.4 272.9 283.1 3.39 2 935 678 -3.3 -4.8 89 1.5 -3.8 201 32 275.1 275.6 272.9 283.0 2.86 3 925 763 -3.1 -4.5 90 1.4 -3.6 205 36 276.1 276.6 273.6 284.3 2.96 4 902 963 -0.3 -1.4 92 1.1 -0.7 214 34 281.0 281.7 277.5 291.7 3.82 5 850 1438 -0.7 -2.0 91 1.3 -1.3 235 29 285.4 286.1 279.7 296.5 3.88 6 810 1823 -1.9 -3.9 86 2.0 -2.7 233 28 288.1 288.7 280.6 298.3 3.53 7 768 2242 -7.3 -11.1 74 3.8 -8.5 230 27 286.7 287.1 278.1 293.0 2.13 8 700 2961 -10.5 -14.6 72 4.1 -11.7 225 25 290.9 291.2 279.6 296.2 1.76 9 652 3507 -11.5 -13.4 86 1.9 -12.1 230 26 295.7 296.1 282.2 302.1 2.08 10 571 4510 -18.7 -21.0 82 2.3 -19.2 240 27 298.7 298.9 282.4 302.7 1.25 11 553 4749 -18.9 -21.1 83 2.2 -19.4 243 28 301.2 301.4 283.5 305.3 1.28 12 500 5490 -25.3 -30.3 63 5.0 -26.1 250 29 302.2 302.3 283.1 304.2 0.62 13 433 6518 -32.9 -37.4 64 4.5 -33.3 240 41 305.2 305.3 284.0 306.5 0.35 14 400 7070 -38.3 -42.5 65 4.2 -38.6 235 48 305.2 305.3 283.8 306.0 0.23 15 358 7821 -45.5 -49.5 64 4.0 -45.7 241 56 305.4 305.4 283.7 305.8 0.12 16 300 8980 -52.7 -56.9 60 4.2 -52.8 250 69 311.1 311.1 285.8 311.3 0.06 17 276 9515 -55.9 -60.2 59 4.3 -56.0 265 81 313.9 313.9 286.8 314.1 0.04 18 254 10040 -59.1 -63.4 57 4.3 -59.2 255 69 316.8 316.8 287.7 316.9 0.03 19 250 10140 -57.9 -62.3 57 4.4 -58.0 260 62 320.0 320.0 288.8 320.1 0.04 20 200 11540 -58.9 -63.9 52 5.0 -59.0 280 40 339.5 339.5 294.2 339.6 0.04 21 157 13054 -57.9 -63.9 46 6.0 -58.0 284 26 365.5 365.5 299.8 365.7 0.05 22 150 13340 -58.5 -64.5 46 6.0 -58.6 285 23 369.3 369.3 300.5 369.5 0.04 23 128 14326 -63.5 -70.5 38 7.0 -63.6 289 28 377.4 377.4 301.8 377.5 0.02 24 100 15840 -64.1 -71.1 38 7.0 -64.2 295 35 403.9 403.9 305.7 404.0 0.03 25 70 18010 -67.5 -75.5 31 8.0 -67.6 300 40 440.0 440.0 309.9 440.1 0.02 26 50 20020 -69.5 -77.5 30 8.0 -69.6 295 44 479.7 479.7 313.4 479.8 0.02 27 31 22839 -74.9 -82.9 28 8.0 -75.0 304 67 535.4 535.4 317.2 535.5 0.01 28 30 23030 -74.5 -82.5 28 8.0 -74.6 305 69 541.5 541.5 317.6 541.6 0.01 29 25 24094 -73.3 -81.3 28 8.0 -73.5 574.0 574.0 319.3 574.1 0.02 30 20 25392 -75.9 -83.9 27 8.0 -76.0 603.8 603.8 320.8 604.0 0.02 TRP 254 10040 -59.1 -63.4 57 4.3 -59.2 255 69 316.8 316.8 287.7 316.9 0.03 WND 276 9515 -55.9 -60.2 59 4.3 -56.0 265 81 313.9 313.9 286.8 314.1 0.04 Sounding variables and indices 1000-500 mb thick: 5349.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.49 inches Sfc-500 mean rel hum: 81.68 % Est. max temperature: 12.05 C = 53.69 F Sfc-Lift cond lev (LCL): 964.02 mb = 433.86 m = 1423.41 ft T: -1.61 C 700-500 lapse rate: 5.85 C/km ThetaE index: 5.35 C Layer 768.0- 700.0 mb Conv cond level (CCL): 941.50 mb = 622.42 m = 2042.03 ft Mean mixing ratio: 3.28 g/kg Conv temperature: 0.76 C = 33.37 F Cap Strength: 14.19 C Lifted Index: 14.17 C Risk: None Lifted Index @300 mb: 18.00 C Lifted Index @700 mb: 8.00 C Showalter Index: 6.15 C Risk: None Total Totals Index: 47.90 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 24.60 C Cross Totals Index: 23.30 C K Index: 18.50 Risk: < 20 % chance of thunderstorms Sweat Index: 144.35 Risk: None Energy Index: 1.59 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 37.28 J/kg Max Up Vert Vel: 8.64 m/s Conv Inhibition (B-): 42521.98 J/kg Cap Strength: 14.19 C Lift Cond Lev (LCL): 916.47 mb = 836.77 m = 2745.29 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 263 at 21 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 ---------------------------------------------------------- 0 987 246 180 9 0.0 9.0 | 107 22 -20.9 6.3 1 925 763 205 36 15.2 32.6 | 169 30 -5.7 30.0 2 850 1438 235 29 23.8 16.6 | 192 14 2.9 14.0 3 700 2961 225 25 17.7 17.7 | 168 15 -3.2 15.0 4 500 5490 250 29 27.3 9.9 | 221 10 6.4 7.3 5 400 7070 235 48 39.3 27.5 | 217 31 18.4 24.9 6 300 8980 250 69 64.8 23.6 | 245 49 44.0 20.9 7 276 9515 265 81 80.7 7.1 | 266 60 59.8 4.4 8 254 10040 255 69 66.6 17.9 | 252 48 45.8 15.2 9 250 10140 260 62 61.1 10.8 | 259 41 40.2 8.1 10 200 11540 280 40 39.4 -6.9 | 297 21 18.5 -9.6 11 150 13340 285 23 22.2 -6.0 | 351 9 1.3 -8.6 12 100 15840 295 35 31.7 -14.8 | 328 21 10.8 -17.5 13 70 18010 300 40 34.6 -20.0 | 329 27 13.8 -22.7 14 50 20020 295 44 39.9 -18.6 | 318 29 19.0 -21.3 15 30 23030 305 69 56.5 -39.6 | 320 55 35.6 -42.2 Wind Parameters Mean winds (0-6000m): 232.7 at 28.1 knts Storm direction: 262.7 at 21.0 knts Shear (0-3000m) pos: 4.1 neg: 0.7 tot: 4.8 10-3/s Storm rel Dir Shear (0-3000m): 65.1 deg Storm rel helicity (0-3000m) pos: 239.7 neg: -23.3 tot: 216.4 m^2/s^2 ave: 72.1 10^-3 m/s^2 rel: 0.58 Storm rel vorticity (0-3000m) horiz: 9.3 stream: 5.3 10^-3/s Energy-Hel index: 0.05 Bulk Rich Number: 1.20 Bulk Shear: 31.08 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 ------------------------------------------------------------------------------- 500 200 22 143 23| 27.9 0.0 27.9|176.7 0.0 176.7 353.4 0.95| 28.7 27.3 1000 209 28 161 23| 13.2 0.0 13.2|227.4 0.0 227.4 227.4 0.82| 21.5 17.6 1500 216 28 168 20| 8.2 0.0 8.2|235.7 -4.7 231.0 154.0 0.73| 16.4 11.9 2000 220 28 172 19| 6.1 0.5 6.7|235.7 -12.6 223.2 111.6 0.66| 12.8 8.4 2500 222 28 172 18| 4.9 0.8 5.7|235.7 -20.3 215.5 86.2 0.59| 10.7 6.3 3000 223 27 172 18| 4.1 0.7 4.8|239.7 -23.3 216.4 72.1 0.58| 9.3 5.3 4000 225 27 174 16| 3.5 0.5 4.0|253.7 -23.3 230.4 57.6 0.60| 7.6 4.5 5000 229 27 179 15| 3.1 0.4 3.6|267.0 -23.3 243.7 48.7 0.62| 6.6 4.1 6000 233 28 186 14| 2.6 0.7 3.3|270.9 -24.9 246.1 41.0 0.55| 6.4 3.5 Wrote GIF file: /home/apache/climate/data/raob//U6781/skewt/U6781.skewt.20251209.12.gif