UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041712.upa.cvt Date: 1200Z 17 APR 25 Searching for U2271... Searching the city database file for: U2271 ... Date:1200Z 17 APR 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 ------------------------------------------------------------------------------- SFC 1023 10 -2.9 -6.7 75 3.8 -4.1 135 7 268.5 268.9 267.8 274.6 2.26 1 1000 190 -3.7 -10.7 58 7.0 -5.7 155 13 269.5 269.7 267.4 274.1 1.69 2 988 285 -4.7 -11.7 58 7.0 -6.7 159 12 269.4 269.6 267.2 273.7 1.58 3 925 800 -8.3 -13.0 69 4.7 -9.5 180 7 270.8 271.1 268.0 275.1 1.52 4 901 1004 -9.3 -12.5 78 3.2 -10.1 206 7 271.8 272.1 268.9 276.4 1.62 5 879 1196 -7.5 -12.5 67 5.0 -8.9 231 7 275.6 275.9 271.4 280.3 1.66 6 876 1222 -7.5 -19.5 38 12.0 -10.2 235 7 275.9 276.1 270.3 278.6 0.93 7 873 1249 -7.5 -19.5 38 12.0 -10.2 238 7 276.2 276.3 270.5 278.9 0.93 8 868 1294 -7.9 -19.9 37 12.0 -10.6 244 7 276.2 276.4 270.4 278.9 0.91 9 850 1457 -7.7 -27.7 18 20.0 -11.4 265 7 278.1 278.2 270.8 279.5 0.46 10 845 1503 -7.7 -27.7 18 20.0 -11.4 267 7 278.5 278.6 271.1 280.0 0.46 11 841 1540 -7.9 -29.9 15 22.0 -11.7 268 8 278.7 278.8 271.1 279.9 0.38 12 767 2255 -8.3 -31.3 14 23.0 -12.4 294 13 285.7 285.8 275.0 286.9 0.36 13 728 2657 -10.9 -33.9 13 23.0 -14.6 309 17 287.2 287.2 275.7 288.1 0.30 14 700 2957 -13.7 -24.7 39 11.0 -15.9 320 19 287.3 287.4 276.5 289.6 0.74 15 689 3077 -14.7 -24.7 42 10.0 -16.6 287.5 287.6 276.6 289.8 0.75 16 676 3222 -13.3 -18.3 66 5.0 -14.6 290.6 290.9 279.0 294.7 1.34 17 666 3335 -13.5 -17.5 72 4.0 -14.5 291.7 291.9 279.6 296.1 1.45 18 622 3853 -15.9 -18.5 80 2.6 -16.6 294.7 294.9 280.9 299.1 1.43 TRP WND Sounding variables and indices Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.17 inches Sfc-500 mean rel hum: 44.95 % Est. max temperature: 4.82 C = 40.68 F Sfc-Lift cond lev (LCL): 963.57 mb = 480.80 m = 1577.40 ft T: -6.07 C ThetaE index: 1.72 C Layer 876.0- 873.0 mb Conv cond level (CCL): None Cap Strength: 18.59 C Lifted Index @700 mb: 13.29 C Parcel Indices Parcel: using 100 mb layer CAPE (B+): 6.62 J/kg Max Up Vert Vel: 3.64 m/s Conv Inhibition (B-): 1271.37 J/kg Cap Strength: 18.43 C Lift Cond Lev (LCL): 886.33 mb = 1131.31 m = 3711.60 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 303 at 8 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 1023 10 135 7 -4.9 4.9 | 129 15 -11.8 9.4 1 1000 190 155 13 -5.5 11.8 | 143 20 -12.3 16.3 2 925 800 180 7 0.0 7.0 | 149 13 -6.8 11.5 3 850 1457 265 7 7.0 0.6 | 182 5 0.2 5.1 4 700 2957 320 19 12.2 -14.6 | 332 11 5.4 -10.1 Wind Parameters Mean winds (0-6000m): 273.4 at 10.9 knts Storm direction: 303.4 at 8.1 knts Shear (0-3000m) pos: 4.6 neg: 0.0 tot: 4.6 10-3/s Storm rel Dir Shear (0-3000m): -157.0 deg Storm rel helicity (0-3000m) pos: 69.8 neg: 0.0 tot: 69.8 m^2/s^2 ave: 24.1 10^-3 m/s^2 rel: 0.65 Storm rel vorticity (0-3000m) horiz: 7.3 stream: 4.7 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.15 Bulk Shear: 45.58 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 ------------------------------------------------------------------------------- 500 156 11 142 18| 5.7 0.0 5.7| 28.8 0.0 28.8 57.6 0.57| 11.0 6.2 1000 165 9 146 16| 4.2 0.0 4.2| 38.9 0.0 38.9 38.9 0.52| 8.9 4.6 1500 180 9 153 15| 4.5 0.0 4.5| 47.0 0.0 47.0 31.3 0.51| 8.5 4.3 2000 206 9 167 13| 4.6 0.0 4.6| 52.7 0.0 52.7 26.4 0.59| 7.6 4.5 2500 241 10 190 9| 4.6 0.0 4.6| 60.3 0.0 60.3 24.1 0.64| 7.3 4.7 3000 NO DATA | 4.6 0.0 4.6| | 4000 NO DATA | 4.6 0.0 4.6| | 5000 NO DATA | 4.6 0.0 4.6| | 6000 NO DATA | 4.6 0.0 4.6| | Wrote GIF file: /home/apache/climate/data/raob//U2271/skewt/U2271.skewt.20250417.12.gif