UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120612.upa.cvt Date: 1200Z 6 DEC 25 Searching for U8661... Searching the city database file for: U8661 ... Date:1200Z 6 DEC 25 Station: U8661 WMO ident: 28661 Latitude: 55.47 Longitude: 65.40 ------------------------------------------------------------------------------- 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 1016 72 0.0 -4.2 73 4.2 -1.5 240 3 271.9 272.4 270.8 279.4 2.75 1 1000 199 -2.1 -7.1 69 5.0 -3.7 260 13 271.0 271.4 269.4 277.2 2.24 2 991 271 -2.9 -7.6 70 4.7 -4.4 263 13 270.9 271.3 269.2 276.9 2.17 3 925 813 -6.3 -8.7 83 2.4 -7.0 285 11 272.9 273.2 270.4 278.8 2.14 4 904 992 -7.1 -9.1 86 2.0 -7.7 295 14 273.8 274.2 271.0 279.7 2.12 5 887 1141 -6.5 -8.3 87 1.8 -7.1 302 17 276.0 276.3 272.5 282.4 2.30 6 850 1473 -7.5 -9.0 89 1.5 -8.0 320 23 278.3 278.7 273.8 284.7 2.27 7 793 2010 -10.9 -12.7 87 1.8 -11.4 309 27 280.2 280.5 274.3 285.5 1.81 8 787 2068 -10.1 -12.0 86 1.9 -10.6 308 27 281.7 282.0 275.2 287.3 1.93 9 773 2206 -11.9 -15.0 78 3.1 -12.7 305 28 281.2 281.5 274.4 285.7 1.54 10 754 2397 -10.5 -17.5 56 7.0 -12.3 301 29 284.7 285.0 275.9 288.6 1.28 11 738 2562 -10.7 -17.7 56 7.0 -12.5 298 30 286.3 286.5 276.7 290.1 1.29 12 712 2838 -10.5 -18.5 52 8.0 -12.5 293 32 289.4 289.7 278.3 293.3 1.25 13 700 2969 -11.1 -19.1 52 8.0 -13.1 290 33 290.2 290.4 278.6 293.9 1.21 14 530 5041 -26.3 -32.3 57 6.0 -27.1 278 42 296.0 296.1 280.3 297.6 0.48 15 500 5460 -28.9 -33.8 63 4.9 -29.5 275 44 297.8 297.9 281.0 299.3 0.44 16 489 5619 -29.7 -34.7 62 5.0 -30.3 275 45 298.7 298.8 281.4 300.1 0.41 17 400 7020 -41.9 -47.9 52 6.0 -42.2 280 56 300.5 300.6 281.7 301.0 0.13 18 321 8474 -53.1 -59.1 48 6.0 -53.2 304.6 304.6 283.3 304.7 0.04 TRP WND Sounding variables and indices 1000-500 mb thick: 5261.00 m Freezing level: 1016.00 mb = 72.49 m = 237.82 ft Wetbulb zero: Below ground Precipitable water: 0.32 inches Sfc-500 mean rel hum: 66.08 % Est. max temperature: 5.38 C = 41.68 F Sfc-Lift cond lev (LCL): 951.46 mb = 591.06 m = 1939.14 ft T: -4.91 C 700-500 lapse rate: 7.15 C/km ThetaE index: 2.49 C Layer 1000.0- 925.0 mb Conv cond level (CCL): 807.25 mb = 1872.17 m = 6142.22 ft Mean mixing ratio: 2.21 g/kg Conv temperature: 7.86 C = 46.15 F Cap Strength: 15.52 C Lifted Index: 16.61 C Risk: None Lifted Index @700 mb: 13.11 C Showalter Index: 11.33 C Risk: None Total Totals Index: 41.30 C Risk: None Vertical Totals Index: 21.40 C Cross Totals Index: 19.90 C K Index: 4.40 Risk: None Sweat Index: 90.00 Risk: None Energy Index: 3.07 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 4.05 J/kg Max Up Vert Vel: 2.85 m/s Conv Inhibition (B-): 4060.10 J/kg Cap Strength: 16.25 C Lift Cond Lev (LCL): 909.92 mb = 941.40 m = 3088.54 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 316 at 23 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 1016 72 240 3 2.6 1.5 | 143 23 -13.6 18.4 1 1000 199 260 13 12.8 2.3 | 170 19 -3.4 19.1 2 925 813 285 11 10.6 -2.8 | 158 15 -5.6 14.0 3 850 1473 320 23 14.8 -17.6 | 62 2 -1.5 -0.8 4 700 2969 290 33 31.0 -11.3 | 249 16 14.8 5.6 5 500 5460 275 44 43.8 -3.8 | 245 31 27.6 13.0 6 400 7020 280 56 55.1 -9.7 | 260 40 38.9 7.1 Wind Parameters Mean winds (0-6000m): 286.1 at 31.2 knts Storm direction: 316.1 at 23.4 knts Shear (0-3000m) pos: 4.0 neg: 2.9 tot: 6.9 10-3/s Storm rel Dir Shear (0-3000m): 106.0 deg Storm rel helicity (0-3000m) pos: 56.7 neg: -24.7 tot: 32.0 m^2/s^2 ave: 10.7 10^-3 m/s^2 rel: -0.05 Storm rel vorticity (0-3000m) horiz: 8.6 stream: -0.4 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.07 Bulk Shear: 58.65 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 ------------------------------------------------------------------------------- 500 265 11 164 18| 9.8 0.0 9.8| 52.1 -6.9 45.2 90.4 0.60| 13.7 8.2 1000 276 12 164 16| 7.4 0.0 7.4| 56.3 -12.5 43.8 43.8 0.38| 10.7 4.1 1500 295 15 164 11| 8.0 0.0 8.0| 56.6 -14.7 41.9 27.9 0.10| 11.1 1.1 2000 302 17 169 8| 6.0 1.4 7.4| 56.6 -16.0 40.6 20.3 0.01| 9.8 0.1 2500 302 20 184 7| 4.8 2.4 7.1| 56.6 -19.2 37.4 15.0 -0.02| 9.1 -0.2 3000 299 22 203 7| 4.0 2.9 6.9| 56.7 -24.7 32.0 10.7 -0.05| 8.6 -0.4 4000 294 25 225 9| 3.0 2.9 5.9| 56.8 -26.4 30.3 7.6 -0.05| 7.2 -0.4 5000 290 28 235 13| 2.4 3.0 5.4| 56.8 -34.0 22.7 4.5 -0.07| 6.4 -0.4 6000 286 31 239 16| 2.3 2.7 5.0| 86.9 -38.4 48.6 8.1 -0.02| 5.9 -0.1 Wrote GIF file: /home/apache/climate/data/raob//U8661/skewt/U8661.skewt.20251206.12.gif