UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025102012.upa.cvt Date: 1200Z 20 OCT 25 Searching for U2271... Searching the city database file for: U2271 ... Date:1200Z 20 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 1 340 9 SFC 999 9 4.8 2.3 84 2.5 3.7 340 9 278.0 278.8 276.9 290.4 4.52 2 992 66 2.6 -1.7 73 4.3 0.8 338 10 276.4 277.0 274.4 285.7 3.40 3 925 627 -1.3 -4.8 77 3.5 -2.6 320 21 278.0 278.5 274.6 286.0 2.89 4 850 1295 -6.1 -8.8 81 2.7 -7.0 315 21 279.8 280.1 274.7 286.3 2.31 5 723 2542 -14.1 -17.0 79 2.9 -14.8 294 18 284.2 284.5 275.8 288.4 1.39 6 700 2786 -16.5 -19.6 77 3.1 -17.1 290 17 284.2 284.4 275.5 287.7 1.15 7 500 5220 -36.5 -40.5 66 4.0 -36.8 255 29 288.5 288.6 276.3 289.3 0.22 8 485 5429 -38.7 -43.0 64 4.3 -38.9 256 30 288.4 288.4 276.1 288.9 0.18 9 472 5615 -38.7 -43.1 63 4.4 -38.9 256 31 290.6 290.6 277.3 291.2 0.18 10 400 6730 -46.3 -53.3 45 7.0 -46.5 260 38 294.8 294.8 279.1 295.1 0.07 11 390 6898 -47.3 -54.3 45 7.0 -47.5 260 39 295.6 295.7 279.5 295.9 0.06 12 333 7938 -50.3 -58.3 38 8.0 -50.5 260 42 305.2 305.2 283.5 305.4 0.04 13 300 8620 -50.7 -59.7 34 9.0 -50.9 260 48 313.9 313.9 286.8 314.0 0.04 14 250 9810 -50.1 -61.1 26 11.0 -50.4 270 46 331.6 331.6 292.2 331.8 0.04 15 224 10528 -48.3 -60.3 24 12.0 -48.7 275 41 344.9 344.9 295.6 345.1 0.05 16 200 11270 -49.1 -63.1 18 14.0 -49.6 280 35 355.0 355.0 297.7 355.2 0.04 17 184 11816 -50.5 -64.5 18 14.0 -50.9 277 30 361.3 361.3 299.0 361.5 0.04 18 155 12944 -47.7 -64.7 12 17.0 -48.4 271 21 384.3 384.3 302.9 384.4 0.04 19 150 13160 -48.7 -65.7 12 17.0 -49.4 270 19 386.2 386.2 303.2 386.3 0.04 20 125 14347 -52.3 -69.3 11 17.0 -52.8 270 22 400.3 400.3 305.3 400.4 0.03 21 118 14721 -49.5 -68.5 9 19.0 -50.3 270 23 412.1 412.1 306.8 412.3 0.03 22 100 15790 -55.3 -73.3 9 18.0 -55.8 270 25 420.9 420.9 307.8 421.0 0.02 23 78 17361 -60.1 -78.1 8 18.0 -60.4 263 21 441.9 441.9 310.1 442.0 0.01 24 71 17951 -58.7 -77.7 7 19.0 -59.2 260 19 456.9 457.0 311.5 457.0 0.01 25 70 18040 -59.7 -78.7 7 19.0 -60.1 260 19 456.7 456.7 311.5 456.7 0.01 26 59 19100 -64.5 -82.5 7 18.0 -64.8 257 16 468.8 468.8 312.5 468.8 0.01 27 56 19421 -61.9 -79.9 7 18.0 -62.3 257 15 481.7 481.7 313.6 481.8 0.01 28 50 20120 -64.3 -82.3 7 18.0 -64.6 255 13 492.0 492.0 314.4 492.0 0.01 29 36 22117 -66.7 -83.7 7 17.0 -67.0 252 18 534.2 534.2 317.2 534.3 0.01 30 31 23028 -63.1 -81.1 7 18.0 -63.7 250 20 567.3 567.3 319.0 567.4 0.02 31 30 23230 -63.3 -81.3 7 18.0 -63.9 250 21 572.1 572.1 319.3 572.2 0.02 32 25 24343 -66.5 -83.5 7 17.0 -67.0 241 27 593.5 593.5 320.3 593.6 0.01 33 20 25700 -64.7 -82.7 7 18.0 -65.4 230 35 638.1 638.1 322.2 638.3 0.02 34 13 28337 -63.7 -81.7 7 18.0 -64.9 725.3 725.3 325.2 725.6 0.04 TRP 333 7938 -50.3 -58.3 38 8.0 -50.5 260 42 305.2 305.2 283.5 305.4 0.04 WND Sounding variables and indices 1000-500 mb thick: 5219.00 m Freezing level: 947.33 mb = 440.06 m = 1443.74 ft Wetbulb zero: 975.72 mb = 198.89 m = 652.51 ft Precipitable water: 0.35 inches Sfc-500 mean rel hum: 75.20 % Est. max temperature: 6.56 C = 43.81 F Sfc-Lift cond lev (LCL): 961.21 mb = 319.03 m = 1046.67 ft T: 0.84 C 700-500 lapse rate: 8.22 C/km ThetaE index: 4.67 C Layer 992.0- 925.0 mb Conv cond level (CCL): 871.68 mb = 1096.04 m = 3595.87 ft Mean mixing ratio: 3.10 g/kg Conv temperature: 6.01 C = 42.81 F Cap Strength: 2.23 C Lifted Index: 2.68 C Risk: None Lifted Index @300 mb: 19.71 C Lifted Index @700 mb: 1.76 C Showalter Index: 2.50 C Risk: Showers probable Total Totals Index: 58.10 C Risk: Severe Thunderstorms probable Vertical Totals Index: 30.40 C Cross Totals Index: 27.70 C K Index: 18.50 Risk: < 20 % chance of thunderstorms Sweat Index: 253.00 Risk: None Energy Index: 0.61 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 6.65 J/kg Max Up Vert Vel: 3.65 m/s Conv Inhibition (B-): 57835.21 J/kg Cap Strength: 2.64 C Lift Cond Lev (LCL): 895.13 mb = 886.33 m = 2907.89 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 311 at 17 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 ---------------------------------------------------------- 0 999 9 340 9 3.1 -8.5 | 105 10 -9.4 2.6 1 925 627 320 21 13.5 -16.1 | 349 5 1.0 -5.1 2 850 1295 315 21 14.8 -14.8 | 328 4 2.4 -3.8 3 700 2786 290 17 16.0 -5.8 | 214 6 3.5 5.2 4 500 5220 255 29 28.0 7.5 | 220 24 15.5 18.5 5 400 6730 260 38 37.4 6.6 | 235 31 24.9 17.6 6 333 7938 260 42 41.4 7.3 | 238 34 28.9 18.3 7 300 8620 260 48 47.3 8.3 | 241 40 34.8 19.4 8 250 9810 270 46 46.0 -0.0 | 252 35 33.5 11.0 9 200 11270 280 35 34.5 -6.1 | 257 23 22.0 4.9 10 150 13160 270 19 19.0 -0.0 | 211 13 6.5 11.0 11 100 15790 270 25 25.0 -0.0 | 229 17 12.5 11.0 12 70 18040 260 19 18.7 3.3 | 204 16 6.2 14.3 13 50 20120 255 13 12.6 3.4 | 180 14 0.1 14.4 14 30 23230 250 21 19.7 7.2 | 202 20 7.3 18.2 15 20 25700 230 35 26.8 22.5 | 203 36 14.3 33.5 Wind Parameters Mean winds (0-6000m): 281.5 at 22.2 knts Storm direction: 311.5 at 16.7 knts Shear (0-3000m) pos: 0.0 neg: 2.5 tot: 2.5 10-3/s Storm rel Dir Shear (0-3000m): 114.6 deg Storm rel helicity (0-3000m) pos: 1.2 neg: -27.3 tot: -26.1 m^2/s^2 ave: -8.7 10^-3 m/s^2 rel: -0.79 Storm rel vorticity (0-3000m) horiz: 4.4 stream: -3.4 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.19 Bulk Shear: 34.09 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 ------------------------------------------------------------------------------- 500 327 14 83 5| 0.0 10.7 10.7| 0.0 -13.5 -13.5 -27.1 -0.81| 10.9 -8.8 1000 323 17 36 3| 0.0 6.8 6.8| 0.0 -17.8 -17.8 -17.8 -0.85| 7.3 -6.2 1500 320 18 9 3| 0.0 4.5 4.5| 0.0 -20.0 -20.0 -13.3 -0.86| 5.6 -4.8 2000 316 19 350 3| 0.0 3.4 3.4| 0.0 -22.9 -22.9 -11.4 -0.87| 5.0 -4.4 2500 313 19 327 2| 0.0 2.7 2.7| 0.0 -25.7 -25.7 -10.3 -0.87| 4.6 -4.0 3000 310 19 296 2| 0.0 2.5 2.5| 1.2 -27.3 -26.1 -8.7 -0.79| 4.4 -3.4 4000 301 19 254 4| 0.0 2.7 2.7| 3.8 -27.4 -23.7 -5.9 -0.58| 4.2 -2.5 5000 291 20 240 8| 0.0 2.9 2.9| 3.8 -35.7 -31.9 -6.4 -0.51| 4.2 -2.1 6000 281 22 235 11| 0.3 2.7 2.9| 28.8 -39.3 -10.5 -1.7 -0.37| 4.1 -1.5 Wrote GIF file: /home/apache/climate/data/raob//U2271/skewt/U2271.skewt.20251020.12.gif