UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120112.upa.cvt Date: 1200Z 1 DEC 25 Searching for U8661... Searching the city database file for: U8661 ... Date:1200Z 1 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 1017 72 3.6 0.1 78 3.5 2.1 250 3 275.4 276.1 274.4 285.7 3.78 1 1000 208 2.4 -2.3 71 4.7 0.5 265 9 275.5 276.1 273.7 284.4 3.22 2 925 832 -3.1 -5.1 86 2.0 -3.8 285 15 276.1 276.6 273.4 284.0 2.82 3 921 866 -3.1 -5.1 86 2.0 -3.8 285 16 276.5 277.0 273.6 284.4 2.84 4 914 927 -1.5 -3.3 88 1.8 -2.2 285 18 278.7 279.3 275.5 287.8 3.27 5 911 953 -0.7 -2.7 86 2.0 -1.5 285 18 279.8 280.4 276.3 289.4 3.44 6 891 1131 1.2 -3.8 69 5.0 -0.8 285 23 283.6 284.1 278.0 292.8 3.24 7 886 1176 1.0 -4.0 69 5.0 -1.0 285 24 283.8 284.4 278.1 292.9 3.20 8 850 1509 -0.7 -5.6 69 4.9 -2.6 285 33 285.4 285.9 278.6 293.9 2.96 9 760 2393 -6.1 -11.1 68 5.0 -7.8 276 26 288.9 289.2 279.2 295.2 2.15 10 732 2686 -7.9 -12.9 67 5.0 -9.5 273 24 290.0 290.3 279.4 295.8 1.93 11 712 2902 -6.9 -12.9 62 6.0 -8.8 271 22 293.4 293.8 281.1 299.4 1.99 12 700 3034 -7.7 -14.7 57 7.0 -9.8 270 21 294.0 294.3 281.0 299.3 1.74 13 640 3725 -12.5 -26.5 30 14.0 -15.4 266 22 296.1 296.3 280.6 298.3 0.68 14 575 4534 -18.7 -28.7 41 10.0 -20.4 261 23 298.1 298.2 281.4 300.1 0.62 15 554 4810 -20.5 -32.5 33 12.0 -22.3 260 24 299.1 299.2 281.6 300.6 0.45 16 524 5220 -23.9 -37.9 26 14.0 -25.5 257 24 299.9 299.9 281.7 300.8 0.28 17 500 5560 -26.9 -40.9 25 14.0 -28.3 255 25 300.2 300.3 281.7 301.0 0.21 18 474 5942 -30.3 -40.3 37 10.0 -31.2 251 28 300.7 300.7 282.0 301.5 0.24 19 428 6661 -34.5 -42.5 44 8.0 -35.1 245 34 304.2 304.2 283.4 305.0 0.21 20 400 7130 -38.5 -45.5 48 7.0 -38.9 240 38 305.0 305.0 283.6 305.5 0.16 21 308 8870 -51.9 -56.8 56 4.9 -52.0 240 51 309.9 309.9 285.4 310.1 0.06 22 300 9040 -52.7 -57.6 55 4.9 -52.8 240 52 311.1 311.1 285.8 311.3 0.05 23 297 9105 -53.3 -58.1 56 4.8 -53.4 240 52 311.1 311.1 285.8 311.3 0.05 24 250 10200 -59.3 -64.0 54 4.7 -59.3 240 46 317.9 317.9 288.1 318.0 0.03 25 230 10723 -61.3 -66.1 53 4.8 -61.3 240 46 322.5 322.5 289.6 322.6 0.02 26 213 11204 -60.1 -65.0 53 4.9 -60.2 256 42 331.6 331.6 292.2 331.7 0.03 27 200 11600 -59.5 -64.4 53 4.9 -59.6 270 38 338.5 338.5 294.0 338.7 0.03 28 155 13188 -61.3 -66.3 51 5.0 -61.4 361.1 361.1 299.0 361.2 0.03 TRP 230 10723 -61.3 -66.1 53 4.8 -61.3 240 46 322.5 322.5 289.6 322.6 0.02 WND Sounding variables and indices 1000-500 mb thick: 5352.00 m Freezing level: 967.27 mb = 480.29 m = 1575.74 ft Freezing level: 903.63 mb = 1018.77 m = 3342.39 ft Freezing level: 864.82 mb = 1372.08 m = 4501.52 ft Wetbulb zero: 990.66 mb = 283.09 m = 928.75 ft Precipitable water: 0.42 inches Sfc-500 mean rel hum: 54.47 % Est. max temperature: 12.87 C = 55.17 F Sfc-Lift cond lev (LCL): 963.39 mb = 506.53 m = 1661.83 ft T: -0.23 C 700-500 lapse rate: 7.60 C/km ThetaE index: 1.77 C Layer 1000.0- 921.0 mb Conv cond level (CCL): 751.03 mb = 2485.88 m = 8155.69 ft Mean mixing ratio: 3.09 g/kg Conv temperature: 17.47 C = 63.44 F Cap Strength: 13.64 C Lifted Index: 13.63 C Risk: None Lifted Index @300 mb: 18.94 C Lifted Index @700 mb: 11.79 C Showalter Index: 6.42 C Risk: None Total Totals Index: 47.50 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 26.20 C Cross Totals Index: 21.30 C K Index: 13.60 Risk: None Sweat Index: 91.00 Risk: None Energy Index: 1.52 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 2.22 J/kg Max Up Vert Vel: 2.11 m/s Conv Inhibition (B-): 9839.26 J/kg Cap Strength: 13.63 C Lift Cond Lev (LCL): 916.97 mb = 901.17 m = 2956.55 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 299 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 1017 72 250 3 2.8 1.0 | 128 15 -12.2 9.5 1 1000 208 265 9 9.0 0.8 | 147 11 -6.1 9.3 2 925 832 285 15 14.5 -3.9 | 173 5 -0.5 4.6 3 850 1509 285 33 31.9 -8.5 | 270 17 16.9 -0.1 4 700 3034 270 21 21.0 -0.0 | 215 10 6.0 8.5 5 500 5560 255 25 24.1 6.5 | 211 18 9.1 14.9 6 400 7130 240 38 32.9 19.0 | 213 33 17.9 27.5 7 300 9040 240 52 45.0 26.0 | 221 46 30.0 34.5 8 250 10200 240 46 39.8 23.0 | 218 40 24.8 31.5 9 230 10723 240 46 39.8 23.0 | 218 40 24.8 31.5 10 200 11600 270 38 38.0 -0.0 | 250 24 23.0 8.5 Wind Parameters Mean winds (0-6000m): 269.4 at 23.0 knts Storm direction: 299.4 at 17.2 knts Shear (0-3000m) pos: 3.3 neg: 1.0 tot: 4.2 10-3/s Storm rel Dir Shear (0-3000m): 87.4 deg Storm rel helicity (0-3000m) pos: 41.9 neg: -40.5 tot: 1.4 m^2/s^2 ave: 0.5 10^-3 m/s^2 rel: 0.14 Storm rel vorticity (0-3000m) horiz: 7.6 stream: 1.1 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.09 Bulk Shear: 24.28 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 ------------------------------------------------------------------------------- 500 270 9 147 10| 10.2 0.0 10.2| 20.2 0.0 20.2 40.4 0.62| 10.6 6.6 1000 279 13 159 7| 9.8 0.0 9.8| 29.8 0.0 29.8 29.8 0.69| 10.2 7.1 1500 282 18 206 5| 6.5 3.8 10.3| 41.9 -0.9 41.1 27.4 0.58| 10.7 6.2 2000 282 21 233 7| 4.9 2.0 6.8| 41.9 -16.0 25.9 12.9 0.40| 9.2 3.7 2500 281 22 238 8| 3.9 1.1 5.0| 41.9 -29.3 12.6 5.0 0.25| 8.3 2.1 3000 280 22 236 8| 3.3 1.0 4.2| 41.9 -40.5 1.4 0.5 0.14| 7.6 1.1 4000 277 22 230 9| 2.4 1.1 3.5| 41.9 -41.0 0.9 0.2 0.13| 6.1 0.8 5000 273 22 226 10| 2.0 1.1 3.1| 41.9 -42.9 -1.0 -0.2 0.11| 5.2 0.6 6000 269 23 222 12| 1.6 1.5 3.1| 46.4 -44.3 2.1 0.3 0.11| 4.8 0.5 Wrote GIF file: /home/apache/climate/data/raob//U8661/skewt/U8661.skewt.20251201.12.gif