UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120712.upa.cvt Date: 1200Z 7 DEC 25 Searching for U2271... Searching the city database file for: U2271 ... Date:1200Z 7 DEC 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 1039 4 -4.1 -8.2 73 4.1 -5.3 225 9 266.1 266.4 265.6 271.5 1.98 1 1000 304 -6.9 -12.9 62 6.0 -8.4 240 15 266.2 266.5 264.7 270.1 1.41 2 939 794 -11.1 -15.1 72 4.0 -12.0 232 18 266.8 267.0 264.8 270.3 1.26 3 925 910 -11.7 -17.7 61 6.0 -12.9 230 19 267.3 267.5 264.8 270.2 1.03 4 882 1270 -14.9 -22.9 50 8.0 -16.3 213 16 267.7 267.8 264.4 269.7 0.69 5 855 1505 -12.3 -23.3 39 11.0 -14.3 202 13 272.8 272.9 267.9 274.8 0.68 6 850 1550 -12.5 -24.5 36 12.0 -14.6 200 13 273.1 273.2 267.9 274.9 0.62 7 821 1816 -14.1 -30.1 24 16.0 -16.4 216 12 274.1 274.1 268.2 275.2 0.38 8 700 3017 -20.1 -40.1 15 20.0 -22.1 290 7 280.2 280.3 271.6 280.8 0.17 9 640 3672 -23.7 -44.7 13 21.0 -25.4 310 8 283.4 283.4 273.3 283.8 0.11 10 500 5420 -36.3 -51.3 20 15.0 -37.0 5 9 288.8 288.8 276.2 289.0 0.07 11 426 6518 -43.3 -58.3 18 15.0 -43.7 347 15 293.4 293.4 278.4 293.5 0.03 12 400 6940 -46.7 -61.7 17 15.0 -47.0 340 17 294.3 294.3 278.8 294.4 0.02 13 322 8338 -58.1 -71.1 17 13.0 -58.2 336 26 297.4 297.4 280.2 297.4 0.01 14 300 8780 -60.1 -72.1 19 12.0 -60.2 335 29 300.6 300.6 281.6 300.7 0.01 15 254 9804 -67.3 -78.3 20 11.0 -67.4 335 37 304.6 304.6 283.2 304.6 0.00 16 250 9900 -67.5 -78.5 19 11.0 -67.5 335 38 305.7 305.7 283.7 305.7 0.00 17 231 10377 -69.1 -80.1 19 11.0 -69.1 330 35 310.3 310.3 285.4 310.3 0.00 18 200 11250 -65.9 -76.9 20 11.0 -66.0 325 33 328.4 328.4 291.3 328.4 0.01 19 184 11756 -64.1 -74.1 24 10.0 -64.2 322 32 339.2 339.2 294.1 339.3 0.01 20 150 13000 -64.7 -74.7 24 10.0 -64.8 315 31 358.6 358.6 298.4 358.7 0.01 21 100 15450 -67.3 -78.3 20 11.0 -67.4 300 31 397.7 397.7 304.9 397.7 0.01 22 70 17580 -71.7 -82.7 18 11.0 -71.8 300 23 431.0 431.0 308.9 431.0 0.01 23 50 19540 -75.7 -85.7 19 10.0 -75.7 290 23 465.1 465.1 312.2 465.1 0.01 24 42 20546 -76.5 -87.5 16 11.0 -76.6 486.9 486.9 314.0 486.9 0.00 TRP 231 10377 -69.1 -80.1 19 11.0 -69.1 330 35 310.3 310.3 285.4 310.3 0.00 WND Sounding variables and indices 1000-500 mb thick: 5116.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.12 inches Sfc-500 mean rel hum: 29.47 % Est. max temperature: -2.57 C = 27.38 F Sfc-Lift cond lev (LCL): 973.83 mb = 510.47 m = 1674.74 ft T: -8.67 C 700-500 lapse rate: 6.74 C/km ThetaE index: 1.33 C Layer 1000.0- 939.0 mb Conv cond level (CCL): 897.12 mb = 1141.68 m = 3745.62 ft Mean mixing ratio: 1.47 g/kg Conv temperature: -2.63 C = 27.26 F Cap Strength: 12.17 C Lifted Index: 15.24 C Risk: None Lifted Index @300 mb: 21.38 C Lifted Index @700 mb: 10.06 C Showalter Index: 11.67 C Risk: None Total Totals Index: 35.60 C Risk: None Vertical Totals Index: 23.80 C Cross Totals Index: 11.80 C K Index: -20.70 Risk: None Sweat Index: 35.00 Risk: None Energy Index: 2.99 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 2.37 J/kg Max Up Vert Vel: 2.18 m/s Conv Inhibition (B-): 33918.59 J/kg Cap Strength: 15.14 C Lift Cond Lev (LCL): 913.59 mb = 1003.93 m = 3293.71 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 296 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 1039 4 225 9 6.4 6.4 | 176 10 -0.8 9.9 1 1000 304 240 15 13.0 7.5 | 208 13 5.9 11.0 2 925 910 230 19 14.6 12.2 | 205 17 7.4 15.8 3 850 1550 200 13 4.4 12.2 | 170 16 -2.7 15.8 4 700 3017 290 7 6.6 -2.4 | 154 1 -0.6 1.1 5 500 5420 5 9 -0.8 -9.0 | 56 10 -7.9 -5.4 6 400 6940 340 17 5.8 -16.0 | 6 13 -1.3 -12.4 7 300 8780 335 29 12.3 -26.3 | 347 23 5.1 -22.7 8 250 9900 335 38 16.1 -34.4 | 344 32 8.9 -30.9 9 231 10377 330 35 17.5 -30.3 | 339 29 10.4 -26.8 10 200 11250 325 33 18.9 -27.0 | 333 26 11.8 -23.5 11 150 13000 315 31 21.9 -21.9 | 321 24 14.8 -18.4 12 100 15450 300 31 26.8 -15.5 | 301 23 19.7 -12.0 13 70 17580 300 23 19.9 -11.5 | 302 15 12.8 -8.0 14 50 19540 290 23 21.6 -7.9 | 287 15 14.5 -4.3 Wind Parameters Mean winds (0-6000m): 266.4 at 10.6 knts Storm direction: 296.4 at 8.0 knts Shear (0-3000m) pos: 2.6 neg: 1.6 tot: 4.2 10-3/s Storm rel Dir Shear (0-3000m): -16.6 deg Storm rel helicity (0-3000m) pos: 34.1 neg: -46.7 tot: -12.6 m^2/s^2 ave: -4.2 10^-3 m/s^2 rel: -0.01 Storm rel vorticity (0-3000m) horiz: 6.5 stream: -0.1 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.38 Bulk Shear: 6.20 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 ------------------------------------------------------------------------------- 500 236 13 200 12| 7.9 0.0 7.9| 18.4 -0.4 18.1 36.1 0.74| 8.6 6.4 1000 234 16 203 14| 4.0 1.9 5.9| 18.4 -10.7 7.8 7.8 0.29| 6.9 2.0 1500 228 16 198 15| 2.6 3.2 5.8| 18.4 -45.6 -27.1 -18.1 -0.19| 7.3 -1.4 2000 225 15 193 14| 2.8 2.4 5.1| 29.6 -46.0 -16.4 -8.2 -0.04| 7.1 -0.2 2500 226 14 193 13| 2.8 1.9 4.7| 34.0 -46.0 -11.9 -4.8 0.03| 6.8 0.2 3000 228 13 191 12| 2.6 1.6 4.2| 34.1 -46.7 -12.6 -4.2 -0.01| 6.5 -0.1 4000 238 12 196 10| 2.2 1.2 3.4| 34.1 -47.4 -13.2 -3.3 -0.06| 5.4 -0.3 5000 251 11 203 8| 1.9 1.0 2.9| 35.7 -47.4 -11.7 -2.3 -0.03| 4.8 -0.2 6000 266 11 219 5| 1.7 0.6 2.3| 37.7 -56.4 -18.7 -3.1 -0.08| 4.5 -0.4 Wrote GIF file: /home/apache/climate/data/raob//U2271/skewt/U2271.skewt.20251207.12.gif