UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122712.upa.cvt Date: 1200Z 27 DEC 25 Searching for U0744... Searching the city database file for: U0744 ... Date:1200Z 27 DEC 25 Station: U0744 WMO ident: 20744 Latitude: 72.37 Longitude: 52.73 ------------------------------------------------------------------------------- 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 -91 SFC 986 21 -2.9 -3.4 96 0.5 -3.1 200 3 271.3 271.8 270.8 279.5 3.01 2 964 200 -2.7 -4.0 91 1.3 -3.2 228 5 273.3 273.8 271.9 281.3 2.94 3 948 332 -3.9 -5.0 92 1.1 -4.3 249 7 273.4 273.9 271.7 281.0 2.78 4 925 526 -5.3 -6.7 90 1.4 -5.8 280 9 273.9 274.3 271.6 280.8 2.50 5 850 1183 -10.1 -11.6 89 1.5 -10.5 255 9 275.6 275.9 271.6 280.8 1.85 6 798 1667 -12.9 -14.7 86 1.8 -13.3 248 10 277.6 277.9 272.3 282.0 1.53 7 706 2586 -21.1 -23.1 84 2.0 -21.4 236 13 278.4 278.6 271.7 280.9 0.84 8 700 2649 -21.3 -23.2 85 1.9 -21.6 235 13 278.9 279.0 271.9 281.4 0.84 9 632 3400 -23.7 -26.1 81 2.4 -24.1 264 18 284.4 284.6 274.9 286.6 0.72 10 554 4350 -31.1 -33.9 76 2.8 -31.4 301 26 286.6 286.7 275.5 287.8 0.39 11 520 4796 -34.3 -37.2 75 2.9 -34.6 319 29 288.0 288.0 276.1 289.0 0.30 12 500 5070 -35.9 -38.7 75 2.8 -36.1 330 31 289.3 289.3 276.7 290.2 0.27 13 470 5498 -36.7 -39.5 75 2.8 -36.9 333 40 293.4 293.5 278.8 294.3 0.26 14 400 6590 -46.5 -49.5 71 3.0 -46.6 340 64 294.6 294.6 279.0 294.9 0.10 15 361 7263 -52.0 -55.0 70 3.0 -52.0 335 66 296.0 296.0 279.7 296.2 0.06 16 334 7762 -56.1 -59.1 69 3.0 -56.2 335 57 297.0 297.0 280.1 297.2 0.04 17 300 8440 -58.9 -62.0 67 3.1 -58.9 335 44 302.3 302.3 282.4 302.4 0.03 18 291 8630 -59.9 -63.2 65 3.3 -59.9 332 42 303.5 303.5 282.8 303.6 0.03 19 255 9448 -62.1 -65.0 68 2.9 -62.1 320 33 312.0 312.0 286.1 312.1 0.02 20 250 9570 -61.9 -64.8 68 2.9 -61.9 320 33 314.0 314.0 286.8 314.1 0.03 21 221 10337 -60.3 -63.5 66 3.2 -60.3 312 27 327.8 327.8 291.1 327.9 0.03 22 206 10776 -61.1 -64.2 67 3.1 -61.2 307 24 333.2 333.2 292.6 333.3 0.03 23 200 10960 -59.9 -63.2 65 3.3 -60.0 305 23 337.9 337.9 293.9 338.1 0.04 24 187 11382 -59.1 -62.4 65 3.3 -59.2 304 24 345.8 345.8 295.7 346.0 0.05 25 175 11798 -60.5 -63.7 66 3.2 -60.6 303 25 350.1 350.1 296.7 350.3 0.04 26 160 12357 -60.7 -64.0 65 3.3 -60.7 301 26 358.8 358.8 298.5 359.0 0.04 27 150 12760 -60.3 -63.6 65 3.3 -60.4 300 27 366.2 366.2 299.9 366.4 0.05 28 116 14351 -62.3 -65.4 66 3.1 -62.4 306 28 390.4 390.4 303.9 390.7 0.05 29 102 15139 -64.9 -68.3 63 3.4 -65.0 310 29 400.1 400.1 305.2 400.3 0.04 30 100 15260 -64.9 -68.3 63 3.4 -65.0 310 29 402.3 402.3 305.5 402.5 0.04 31 79 16685 -68.3 -71.7 61 3.4 -68.4 297 32 423.4 423.4 308.1 423.5 0.03 32 70 17410 -68.3 -71.7 61 3.4 -68.4 290 33 438.3 438.3 309.7 438.5 0.03 33 62 18136 -69.3 -72.8 60 3.5 -69.4 451.5 451.5 311.0 451.7 0.03 TRP 255 9448 -62.1 -65.0 68 2.9 -62.1 320 33 312.0 312.0 286.1 312.1 0.02 WND 361 7263 -52.0 -55.0 70 3.0 -52.0 335 66 296.0 296.0 279.7 296.2 0.06 Sounding variables and indices 1000-500 mb thick: 5161.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.27 inches Sfc-500 mean rel hum: 83.35 % Est. max temperature: 1.84 C = 35.31 F Sfc-Lift cond lev (LCL): 978.17 mb = 84.13 m = 276.01 ft T: -2.83 C 700-500 lapse rate: 6.03 C/km ThetaE index: 1.05 C Layer 706.0- 700.0 mb Conv cond level (CCL): 908.01 mb = 670.06 m = 2198.33 ft Mean mixing ratio: 2.62 g/kg Conv temperature: 0.01 C = 32.02 F Cap Strength: 6.52 C Lifted Index: 7.38 C Risk: None Lifted Index @300 mb: 15.26 C Lifted Index @700 mb: 0.77 C Showalter Index: 7.38 C Risk: None Total Totals Index: 50.10 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 25.80 C Cross Totals Index: 24.30 C K Index: 12.30 Risk: None Sweat Index: 71.00 Risk: None Energy Index: 1.93 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 9.36 J/kg Max Up Vert Vel: 4.33 m/s Conv Inhibition (B-): 22874.09 J/kg Cap Strength: 7.10 C Lift Cond Lev (LCL): 917.33 mb = 590.72 m = 1938.03 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 336 at 15 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 ---------------------------------------------------------- 0 986 21 200 3 1.0 2.8 | 163 17 -5.0 16.5 1 925 526 280 9 8.9 -1.6 | 193 12 2.9 12.1 2 850 1183 255 9 8.7 2.3 | 190 16 2.7 16.0 3 700 2649 235 13 10.6 7.5 | 192 22 4.7 21.2 4 500 5070 330 31 15.5 -26.8 | 324 16 9.5 -13.1 5 400 6590 340 64 21.9 -60.1 | 341 49 15.9 -46.4 6 361 7263 335 66 27.9 -59.8 | 335 51 21.9 -46.1 7 300 8440 335 44 18.6 -39.9 | 334 29 12.6 -26.2 8 255 9448 320 33 21.2 -25.3 | 307 19 15.2 -11.6 9 250 9570 320 33 21.2 -25.3 | 307 19 15.2 -11.6 10 200 10960 305 23 18.8 -13.2 | 268 13 12.9 0.5 11 150 12760 300 27 23.4 -13.5 | 269 17 17.4 0.2 12 100 15260 310 29 22.2 -18.6 | 287 17 16.2 -4.9 13 70 17410 290 33 31.0 -11.3 | 264 25 25.0 2.4 Wind Parameters Mean winds (0-6000m): 306.4 at 19.9 knts Storm direction: 336.4 at 15.0 knts Shear (0-3000m) pos: 2.3 neg: 1.5 tot: 3.7 10-3/s Storm rel Dir Shear (0-3000m): 41.3 deg Storm rel helicity (0-3000m) pos: 65.1 neg: -3.7 tot: 61.4 m^2/s^2 ave: 20.5 10^-3 m/s^2 rel: 0.53 Storm rel vorticity (0-3000m) horiz: 4.1 stream: 2.2 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.27 Bulk Shear: 34.64 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 ------------------------------------------------------------------------------- 500 262 6 180 14| 9.1 0.0 9.1| 35.3 0.0 35.3 70.6 0.81| 10.5 8.5 1000 268 7 186 14| 4.6 1.4 6.0| 35.4 -2.1 33.3 33.3 0.60| 6.7 4.0 1500 262 8 188 15| 3.0 1.6 4.7| 37.2 -3.4 33.8 22.5 0.52| 5.2 2.7 2000 257 9 189 16| 2.3 1.7 4.0| 39.1 -3.4 35.7 17.8 0.49| 4.4 2.1 2500 252 9 190 17| 1.8 1.8 3.6| 39.4 -3.5 35.9 14.4 0.44| 3.9 1.7 3000 249 10 191 18| 2.3 1.5 3.7| 65.1 -3.7 61.4 20.5 0.53| 4.1 2.2 4000 260 12 202 17| 3.4 1.1 4.5|140.1 -3.7 136.4 34.1 0.70| 5.1 3.5 5000 285 16 223 13| 4.1 0.9 4.9|221.9 -3.7 218.2 43.6 0.80| 6.1 4.9 6000 306 20 259 10| 5.2 0.7 6.0|263.9 -3.7 260.2 43.4 0.66| 7.0 4.6 Wrote GIF file: /home/apache/climate/data/raob//U0744/skewt/U0744.skewt.20251227.12.gif