UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122512.upa.cvt Date: 1200Z 25 DEC 25 Searching for U8275... Searching the city database file for: U8275 ... Date:1200Z 25 DEC 25 Station: U8275 WMO ident: 28275 Latitude: 58.15 Longitude: 68.18 ------------------------------------------------------------------------------- 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 1005 49 -34.3 -37.7 71 3.4 -34.4 250 1 238.5 238.5 238.4 238.9 0.15 1 1000 84 -33.7 -37.2 71 3.5 -33.8 245 1 239.4 239.5 239.3 239.9 0.16 2 982 213 -28.7 -33.0 66 4.3 -29.0 246 2 245.7 245.8 245.3 246.4 0.24 3 941 522 -26.5 -30.8 67 4.3 -26.9 249 4 251.0 251.0 250.2 251.8 0.31 4 925 646 -26.3 -30.7 66 4.4 -26.7 250 5 252.4 252.5 251.5 253.3 0.32 5 868 1108 -22.9 -27.9 64 5.0 -23.5 265 7 260.6 260.7 258.6 261.8 0.44 6 850 1261 -23.1 -27.9 65 4.8 -23.7 270 7 261.9 262.0 259.6 263.2 0.45 7 804 1668 -22.7 -27.6 64 4.9 -23.3 246 6 266.6 266.7 263.2 268.0 0.49 8 713 2542 -26.7 -38.7 31 12.0 -27.6 193 5 271.5 271.5 266.1 272.1 0.19 9 700 2674 -27.7 -39.7 31 12.0 -28.6 185 5 271.8 271.8 266.3 272.4 0.17 10 615 3593 -33.7 -39.7 55 6.0 -34.1 189 5 275.2 275.2 268.5 275.8 0.20 11 540 4490 -41.7 -46.7 58 5.0 -41.9 193 5 276.1 276.1 268.9 276.4 0.11 12 500 5010 -42.9 -47.9 58 5.0 -43.1 195 5 280.7 280.8 271.8 281.1 0.10 13 469 5441 -44.9 -50.9 51 6.0 -45.1 196 6 283.4 283.4 273.3 283.7 0.08 14 410 6337 -47.7 -55.7 39 8.0 -47.9 199 7 290.9 290.9 277.2 291.1 0.05 15 400 6500 -47.7 -55.7 39 8.0 -47.9 200 7 293.0 293.0 278.2 293.2 0.05 16 360 7192 -50.1 -59.1 34 9.0 -50.3 298.7 298.8 280.8 298.9 0.04 TRP WND Sounding variables and indices 1000-500 mb thick: 4926.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.06 inches Sfc-500 mean rel hum: 54.88 % Est. max temperature: -11.21 C = 11.82 F Sfc-Lift cond lev (LCL): 948.01 mb = 467.84 m = 1534.90 ft T: -26.88 C 700-500 lapse rate: 6.51 C/km ThetaE index: 0.00 C Layer 1005.0-89129.0 mb Conv cond level (CCL): 1000.00 mb = 84.00 m = 275.59 ft Mean mixing ratio: 0.28 g/kg Conv temperature: -31.05 C = -23.90 F Cap Strength: 22.53 C Lifted Index: 25.75 C Risk: None Lifted Index @700 mb: 20.44 C Showalter Index: 14.44 C Risk: None Total Totals Index: 34.80 C Risk: None Vertical Totals Index: 19.80 C Cross Totals Index: 15.00 C K Index: -20.10 Risk: None Sweat Index: 19.00 Risk: None Energy Index: 3.78 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 48.32 J/kg Max Up Vert Vel: 9.83 m/s Conv Inhibition (B-): 6267.73 J/kg Cap Strength: 25.63 C Lift Cond Lev (LCL): 891.75 mb = 911.84 m = 2991.58 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 242 at 4 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 1005 49 250 1 0.9 0.3 | 60 3 -2.5 -1.5 1 1000 84 245 1 0.9 0.4 | 62 3 -2.6 -1.4 2 925 646 250 5 4.7 1.7 | 275 1 1.2 -0.1 3 850 1261 270 7 7.0 -0.0 | 297 4 3.5 -1.8 4 700 2674 185 5 0.4 5.0 | 136 4 -3.1 3.2 5 500 5010 195 5 1.3 4.8 | 144 4 -2.2 3.0 6 400 6500 200 7 2.4 6.6 | 167 5 -1.1 4.8 Wind Parameters Mean winds (0-6000m): 212.5 at 5.2 knts Storm direction: 242.5 at 3.9 knts Shear (0-3000m) pos: 0.4 neg: 1.0 tot: 1.4 10-3/s Storm rel Dir Shear (0-3000m): 77.3 deg Storm rel helicity (0-3000m) pos: 0.7 neg: -6.8 tot: -6.0 m^2/s^2 ave: -2.0 10^-3 m/s^2 rel: -0.56 Storm rel vorticity (0-3000m) horiz: 2.8 stream: -1.5 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 29.51 Bulk Shear: 1.64 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 ------------------------------------------------------------------------------- 500 248 3 52 1| 0.0 3.4 3.4| 0.0 -0.3 -0.3 -0.5 -0.44| 3.5 -1.5 1000 254 4 335 1| 1.2 1.7 2.9| 0.3 -0.4 -0.0 -0.0 -0.22| 3.1 -0.7 1500 259 5 304 2| 0.8 1.3 2.2| 0.7 -1.9 -1.2 -0.8 -0.30| 3.1 -0.9 2000 253 5 282 2| 0.6 1.2 1.9| 0.7 -4.0 -3.3 -1.7 -0.48| 3.2 -1.5 2500 247 5 261 1| 0.5 1.2 1.7| 0.7 -6.2 -5.5 -2.2 -0.56| 3.2 -1.8 3000 239 5 229 1| 0.4 1.0 1.4| 0.7 -6.8 -6.0 -2.0 -0.56| 2.8 -1.5 4000 225 5 186 2| 0.4 0.8 1.1| 1.0 -6.8 -5.8 -1.4 -0.53| 2.1 -1.1 5000 217 5 170 2| 0.3 0.6 0.9| 1.3 -6.8 -5.5 -1.1 -0.50| 1.7 -0.9 6000 212 5 166 3| 0.3 0.5 0.8| 2.6 -6.8 -4.2 -0.7 -0.40| 1.6 -0.6 Wrote GIF file: /home/apache/climate/data/raob//U8275/skewt/U8275.skewt.20251225.12.gif