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 U8951... Searching the city database file for: U8951 ... Date:1200Z 4 DEC 25 Station: U8951 WMO ident: 28951 Latitude: 53.23 Longitude: 63.62 ------------------------------------------------------------------------------- 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 ------------------------------------------------------------------------------- SFC 1002 162 0.6 -3.1 76 3.7 -0.8 230 5 273.6 274.1 272.2 281.9 3.03 1 1000 178 0.6 -2.3 81 2.9 -0.5 240 5 273.8 274.3 272.6 282.5 3.22 2 925 798 -4.7 270 23 274.5 3 887 1127 -7.1 -7.1 100 0.0 -7.1 282 21 275.3 275.8 272.5 282.3 2.53 4 872 1261 -3.3 287 20 280.6 5 860 1371 -2.1 -3.0 94 0.9 -2.4 292 20 283.0 283.6 278.2 293.1 3.56 6 850 1464 -1.9 -4.0 86 2.1 -2.7 295 19 284.2 284.7 278.4 293.7 3.34 7 844 1520 -2.1 -4.7 82 2.6 -3.1 296 19 284.5 285.1 278.4 293.6 3.19 8 834 1615 -1.7 -5.4 76 3.7 -3.1 297 20 285.9 286.4 279.0 294.7 3.06 9 823 1721 -1.9 -6.9 69 5.0 -3.8 299 20 286.8 287.3 279.0 294.8 2.77 10 811 1838 -1.3 -8.3 59 7.0 -3.9 301 20 288.6 289.1 279.6 296.0 2.52 11 779 2158 -2.5 -12.5 46 10.0 -5.8 306 22 290.7 291.0 279.7 296.3 1.88 12 717 2811 -6.3 -8.4 85 2.1 -7.1 317 24 293.5 294.0 282.1 301.9 2.83 13 700 2999 -6.9 -8.2 90 1.3 -7.4 320 25 294.8 295.4 282.8 303.7 2.94 14 659 3469 -8.9 -9.7 94 0.8 -9.2 320 26 297.7 298.2 283.8 306.2 2.78 15 500 5550 -24.3 -24.7 96 0.4 -24.4 320 29 303.4 303.6 284.1 306.8 1.03 16 447 6356 -30.7 -31.6 92 0.9 -30.8 323 33 305.2 305.3 284.3 307.3 0.61 17 414 6899 -32.5 -34.1 86 1.6 -32.7 324 35 309.7 309.8 285.8 311.5 0.52 18 400 7140 -34.7 -36.7 82 2.0 -34.9 325 36 309.9 310.0 285.8 311.3 0.41 19 300 9070 -52.3 -56.4 61 4.1 -52.4 330 44 311.6 311.6 286.0 311.9 0.06 20 284 9423 -55.1 -59.5 58 4.4 -55.2 333 43 312.5 312.5 286.3 312.7 0.04 21 250 10230 -60.1 -65.0 53 4.9 -60.2 340 42 316.7 316.7 287.7 316.8 0.02 22 200 11590 -68.3 -74.3 42 6.0 -68.3 350 50 324.6 324.6 290.2 324.6 0.01 23 186 12023 -70.7 -76.7 41 6.0 -70.7 335 38 327.5 327.5 291.0 327.5 0.01 24 150 13320 -63.9 -68.9 50 5.0 -64.0 310 31 360.0 360.0 298.7 360.1 0.02 25 140 13745 -61.7 -66.5 53 4.8 -61.8 306 31 371.0 371.0 300.8 371.2 0.04 26 100 15820 -63.9 -70.9 38 7.0 -64.0 285 33 404.3 404.3 305.8 404.4 0.03 27 70 18000 -66.1 -76.1 23 10.0 -66.2 300 36 443.0 443.0 310.2 443.1 0.02 28 50 20030 -67.5 -81.5 12 14.0 -67.7 295 36 484.4 484.4 313.8 484.5 0.01 29 41 21217 -68.9 -87.9 5 19.0 -69.1 293 41 509.2 509.2 315.6 509.2 0.00 30 30 23060 -73.5 -99.5 1 26.0 -73.6 290 48 544.3 544.3 317.8 544.3 0.00 31 26 23893 -75.5 -100.5 1 25.0 -75.6 561.3 561.3 318.7 561.3 0.00 TRP 186 12023 -70.7 -76.7 41 6.0 -70.7 335 38 327.5 327.5 291.0 327.5 0.01 WND Sounding variables and indices 1000-500 mb thick: 5372.00 m Freezing level: 991.51 mb = 248.19 m = 814.26 ft Wetbulb zero: Below ground Precipitable water: 0.54 inches Sfc-500 mean rel hum: 84.76 % Est. max temperature: 10.93 C = 51.68 F Sfc-Lift cond lev (LCL): 945.79 mb = 621.21 m = 2038.06 ft T: -3.19 C 700-500 lapse rate: 6.82 C/km ThetaE index: 0.20 C Layer 925.0- 872.0 mb Conv cond level (CCL): 925.73 mb = 791.71 m = 2597.44 ft Mean mixing ratio: 2.92 g/kg Conv temperature: 1.50 C = 34.70 F Cap Strength: 15.81 C Lifted Index: 17.81 C Risk: None Lifted Index @300 mb: 20.81 C Lifted Index @700 mb: 14.06 C Showalter Index: 9.20 C Risk: None Total Totals Index: 42.70 C Risk: None Vertical Totals Index: 22.40 C Cross Totals Index: 20.30 C K Index: 17.10 Risk: < 20 % chance of thunderstorms Sweat Index: 67.00 Risk: None Energy Index: 2.77 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 3.78 J/kg Max Up Vert Vel: 2.75 m/s Conv Inhibition (B-): 42404.45 J/kg Cap Strength: 17.67 C Lift Cond Lev (LCL): 928.84 mb = 765.09 m = 2510.11 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 341 at 18 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 1002 162 230 5 3.8 3.2 | 174 20 -2.0 20.3 1 1000 178 240 5 4.3 2.5 | 176 20 -1.5 19.6 2 925 798 270 23 23.0 -0.0 | 225 24 17.2 17.1 3 850 1464 295 19 17.2 -8.0 | 232 15 11.4 9.1 4 700 2999 320 25 16.1 -19.2 | 281 10 10.3 -2.1 5 500 5550 320 29 18.6 -22.2 | 292 14 12.8 -5.1 6 400 7140 325 36 20.6 -29.5 | 310 19 14.8 -12.4 7 300 9070 330 44 22.0 -38.1 | 322 27 16.2 -21.0 8 250 10230 340 42 14.4 -39.5 | 339 24 8.6 -22.4 9 200 11590 350 50 8.7 -49.2 | 355 32 2.9 -32.1 10 186 12023 335 38 16.1 -34.4 | 329 20 10.3 -17.3 11 150 13320 310 31 23.7 -19.9 | 279 18 17.9 -2.8 12 100 15820 285 33 31.9 -8.5 | 252 27 26.1 8.6 13 70 18000 300 36 31.2 -18.0 | 272 25 25.4 -0.9 14 50 20030 295 36 32.6 -15.2 | 266 27 26.8 1.9 15 30 23060 290 48 45.1 -16.4 | 269 39 39.3 0.7 Wind Parameters Mean winds (0-6000m): 311.2 at 24.1 knts Storm direction: 341.2 at 18.1 knts Shear (0-3000m) pos: 4.4 neg: 0.0 tot: 4.4 10-3/s Storm rel Dir Shear (0-3000m): 107.7 deg Storm rel helicity (0-3000m) pos: 160.6 neg: 0.0 tot: 160.6 m^2/s^2 ave: 53.5 10^-3 m/s^2 rel: 0.79 Storm rel vorticity (0-3000m) horiz: 7.0 stream: 5.6 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.08 Bulk Shear: 49.80 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 ------------------------------------------------------------------------------- 500 258 12 196 20| 15.6 0.0 15.6| 85.5 0.0 85.5 171.0 0.98| 15.8 15.4 1000 270 17 213 20| 9.4 0.0 9.4|123.8 0.0 123.8 123.8 0.85| 12.9 10.9 1500 278 18 219 19| 6.3 0.0 6.3|130.7 0.0 130.7 87.1 0.75| 10.6 7.9 2000 285 18 224 17| 5.4 0.0 5.4|141.8 0.0 141.8 70.9 0.76| 8.8 6.7 2500 291 19 230 16| 4.9 0.0 4.9|152.7 0.0 152.7 61.1 0.78| 7.8 6.1 3000 297 20 237 14| 4.4 0.0 4.4|160.6 0.0 160.6 53.5 0.79| 7.0 5.6 4000 304 22 248 13| 3.3 0.2 3.5|163.3 0.0 163.3 40.8 0.78| 5.5 4.3 5000 308 23 257 12| 2.6 0.3 3.0|166.0 0.0 166.0 33.2 0.77| 4.5 3.5 6000 311 24 264 12| 2.5 0.3 2.8|175.1 0.0 175.1 29.2 0.77| 4.1 3.1 Wrote GIF file: /home/apache/climate/data/raob//U8951/skewt/U8951.skewt.20251204.12.gif