UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101712.upa.cvt Date: 1200Z 17 OCT 25 Searching for U2271... Searching the city database file for: U2271 ... Date:1200Z 17 OCT 25 Station: U2271 WMO ident: 22271 Latitude: 67.88 Longitude: 44.13 ------------------------------------------------------------------------------- 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 -31 250 9 SFC 995 10 5.6 3.1 84 2.5 4.4 250 9 279.1 280.0 277.8 292.3 4.80 2 935 513 0.6 -2.1 82 2.7 -0.5 301 14 279.1 279.7 276.0 288.8 3.50 3 925 599 0.4 -2.1 83 2.5 -0.6 310 15 279.7 280.3 276.5 289.6 3.54 4 850 1271 -4.7 -7.7 79 3.0 -5.7 300 15 281.2 281.7 275.8 288.4 2.52 5 700 2768 -15.1 -17.9 79 2.8 -15.7 280 13 285.8 286.0 276.5 289.8 1.33 6 570 4282 -26.5 -30.0 72 3.5 -26.9 259 11 289.7 289.8 277.4 291.4 0.56 7 500 5210 -34.7 -38.4 69 3.7 -35.0 245 9 290.7 290.8 277.5 291.6 0.28 8 472 5609 -38.3 -42.2 67 3.9 -38.5 249 14 291.1 291.1 277.5 291.8 0.20 9 412 6540 -40.9 -45.1 64 4.2 -41.1 258 25 299.3 299.3 281.3 299.9 0.17 10 400 6740 -42.5 -47.2 60 4.7 -42.7 260 27 299.8 299.8 281.4 300.2 0.14 11 355 7543 -47.7 -52.7 56 5.0 -47.9 251 25 303.2 303.2 282.8 303.5 0.08 12 305 8542 -51.9 -56.9 55 5.0 -52.0 240 23 310.7 310.7 285.7 310.9 0.06 13 300 8650 -51.1 -57.1 49 6.0 -51.2 240 25 313.3 313.3 286.6 313.5 0.06 14 250 9840 -47.1 -54.1 45 7.0 -47.4 225 27 336.0 336.1 293.4 336.4 0.10 15 220 10694 -44.7 -52.7 40 8.0 -45.2 245 22 352.3 352.3 297.3 352.8 0.13 16 200 11330 -47.1 -56.1 35 9.0 -47.5 260 19 358.2 358.2 298.4 358.6 0.10 17 194 11531 -47.5 -57.5 31 10.0 -48.0 263 18 360.7 360.7 298.9 361.0 0.08 18 170 12405 -45.7 -56.7 28 11.0 -46.3 277 13 377.6 377.6 301.9 378.0 0.10 19 150 13230 -49.3 -60.3 27 11.0 -49.8 290 9 385.1 385.1 303.1 385.5 0.08 20 115 14966 -53.7 -66.7 19 13.0 -54.1 293 10 407.4 407.4 306.2 407.6 0.04 21 101 15806 -53.1 -66.1 19 13.0 -53.7 295 11 423.9 423.9 308.2 424.2 0.05 22 100 15870 -53.3 -66.3 19 13.0 -53.8 295 11 424.7 424.8 308.3 425.0 0.05 23 70 18140 -57.5 -70.5 18 13.0 -58.0 280 17 461.4 461.4 311.9 461.6 0.04 24 64 18704 -58.9 -71.9 17 13.0 -59.3 277 16 470.3 470.3 312.7 470.5 0.04 25 50 20250 -59.5 -72.5 17 13.0 -60.0 270 13 503.3 503.3 315.2 503.5 0.04 26 33 22849 -59.7 -72.7 17 13.0 -60.4 566.2 566.3 319.0 566.7 0.06 TRP 305 8542 -51.9 -56.9 55 5.0 -52.0 240 23 310.7 310.7 285.7 310.9 0.06 WND Sounding variables and indices 1000-500 mb thick: 5241.00 m Freezing level: 919.12 mb = 651.71 m = 2138.12 ft Wetbulb zero: 941.19 mb = 459.53 m = 1507.61 ft Precipitable water: 0.40 inches Sfc-500 mean rel hum: 77.21 % Est. max temperature: 7.81 C = 46.06 F Sfc-Lift cond lev (LCL): 957.45 mb = 320.97 m = 1053.04 ft T: 2.51 C 700-500 lapse rate: 8.03 C/km ThetaE index: 3.54 C Layer 935.0- 925.0 mb Conv cond level (CCL): 896.73 mb = 845.69 m = 2774.53 ft Mean mixing ratio: 3.83 g/kg Conv temperature: 6.73 C = 44.11 F Cap Strength: 1.49 C Lifted Index: 1.49 C Risk: Showers probable Lifted Index @300 mb: 16.56 C Lifted Index @700 mb: 0.47 C Showalter Index: 2.72 C Risk: Showers probable Total Totals Index: 57.00 C Risk: Severe Thunderstorms probable Vertical Totals Index: 30.00 C Cross Totals Index: 27.00 C K Index: 19.50 Risk: < 20 % chance of thunderstorms Sweat Index: 199.00 Risk: None Energy Index: 0.65 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 5.59 J/kg Max Up Vert Vel: 3.34 m/s Conv Inhibition (B-): 37915.19 J/kg Cap Strength: 1.49 C Lift Cond Lev (LCL): 908.43 mb = 742.62 m = 2436.39 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 307 at 9 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 ---------------------------------------------------------- 0 995 10 250 9 8.5 3.1 | 186 9 0.9 8.8 1 925 599 310 15 11.5 -9.6 | 315 6 3.9 -3.9 2 850 1271 300 15 13.0 -7.5 | 288 6 5.4 -1.8 3 700 2768 280 13 12.8 -2.3 | 237 6 5.3 3.4 4 500 5210 245 9 8.2 3.8 | 184 10 0.6 9.5 5 400 6740 260 27 26.6 4.7 | 241 22 19.0 10.4 6 305 8542 240 23 19.9 11.5 | 216 21 12.4 17.2 7 300 8650 240 25 21.7 12.5 | 218 23 14.1 18.2 8 250 9840 225 27 19.1 19.1 | 205 27 11.5 24.8 9 200 11330 260 19 18.7 3.3 | 231 14 11.2 9.0 10 150 13230 290 9 8.5 -3.1 | 199 3 0.9 2.6 11 100 15870 295 11 10.0 -4.6 | 246 3 2.4 1.1 12 70 18140 280 17 16.7 -3.0 | 253 10 9.2 2.8 13 50 20250 270 13 13.0 -0.0 | 224 8 5.4 5.7 Wind Parameters Mean winds (0-6000m): 277.1 at 12.6 knts Storm direction: 307.1 at 9.5 knts Shear (0-3000m) pos: 2.1 neg: 1.2 tot: 3.3 10-3/s Storm rel Dir Shear (0-3000m): 43.5 deg Storm rel helicity (0-3000m) pos: 19.5 neg: -13.1 tot: 6.4 m^2/s^2 ave: 2.1 10^-3 m/s^2 rel: 0.19 Storm rel vorticity (0-3000m) horiz: 3.9 stream: 0.7 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 13.77 Bulk Shear: 0.41 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 ------------------------------------------------------------------------------- 500 284 12 231 5| 11.3 0.0 11.3| 16.5 0.0 16.5 32.9 0.91| 11.9 10.8 1000 298 13 276 4| 6.2 0.0 6.2| 19.5 -2.3 17.3 17.3 0.73| 8.0 5.8 1500 299 14 281 5| 4.2 0.6 4.8| 19.5 -5.1 14.4 9.6 0.54| 6.0 3.2 2000 297 14 278 5| 3.1 0.9 4.0| 19.5 -7.8 11.8 5.9 0.40| 5.0 2.0 2500 295 14 273 5| 2.5 1.1 3.6| 19.5 -10.4 9.2 3.7 0.28| 4.3 1.2 3000 293 14 266 5| 2.1 1.2 3.3| 19.5 -13.1 6.4 2.1 0.19| 3.9 0.7 4000 288 13 252 5| 1.6 1.3 2.8| 19.5 -19.0 0.6 0.1 0.05| 3.4 0.2 5000 283 13 238 6| 1.2 1.3 2.5| 19.5 -25.1 -5.6 -1.1 -0.05| 3.0 -0.2 6000 277 13 230 6| 1.4 1.1 2.4| 44.1 -26.4 17.7 2.9 0.15| 3.4 0.5 Wrote GIF file: /home/apache/climate/data/raob//U2271/skewt/U2271.skewt.20251017.12.gif