UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120912.upa.cvt Date: 1200Z 9 DEC 25 Searching for U8661... Searching the city database file for: U8661 ... Date:1200Z 9 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 1036 68 -20.1 -23.1 77 3.0 -20.5 10 3 250.5 250.6 250.4 252.0 0.57 1 1015 220 -21.5 -25.5 70 4.0 -22.0 48 10 250.6 250.7 250.3 251.9 0.47 2 1000 331 -17.9 -21.8 71 3.9 -18.5 75 15 255.2 255.4 254.7 257.1 0.67 3 998 346 -17.9 -21.7 72 3.8 -18.4 74 15 255.4 255.5 254.8 257.2 0.67 4 960 635 -20.1 -22.2 83 2.1 -20.4 59 13 256.0 256.1 255.4 257.8 0.67 5 925 912 -17.1 -19.1 84 2.0 -17.4 45 11 261.8 262.0 260.5 264.3 0.91 6 912 1018 -16.1 -18.4 82 2.3 -16.5 49 12 263.9 264.1 262.2 266.6 0.98 7 895 1161 -13.7 -18.6 66 4.9 -14.7 55 13 267.8 268.0 265.0 270.6 0.98 8 873 1350 -13.5 -23.5 43 10.0 -15.2 62 14 269.9 270.0 265.9 271.8 0.66 9 850 1553 -14.7 -25.7 39 11.0 -16.4 70 15 270.7 270.8 266.3 272.4 0.55 10 757 2423 -17.9 -31.9 28 14.0 -19.7 67 20 276.4 276.5 269.6 277.5 0.35 11 700 3005 -20.3 -36.3 23 16.0 -22.1 65 23 280.0 280.0 271.6 280.8 0.24 12 646 3596 -23.3 -37.3 27 14.0 -24.7 59 25 283.1 283.1 273.4 283.9 0.24 13 620 3896 -25.5 -41.5 21 16.0 -26.9 56 26 283.9 284.0 273.7 284.5 0.16 14 500 5420 -37.1 -53.1 17 16.0 -37.7 40 31 287.8 287.8 275.6 288.0 0.06 15 400 6920 -48.3 -62.3 18 14.0 -48.6 35 44 292.2 292.2 277.8 292.3 0.02 16 375 7345 -50.7 -64.7 17 14.0 -50.9 33 47 294.5 294.5 278.9 294.5 0.02 17 349 7813 -52.5 -66.5 17 14.0 -52.7 30 50 298.2 298.2 280.6 298.2 0.01 18 300 8780 -58.9 -71.9 17 13.0 -59.0 25 56 302.3 302.3 282.3 302.3 0.01 19 260 9661 -64.7 -77.7 15 13.0 -64.8 20 52 306.4 306.4 284.0 306.4 0.00 20 251 9876 -63.5 -76.5 16 13.0 -63.6 20 54 311.3 311.3 285.8 311.3 0.00 21 250 9900 -63.5 -76.5 16 13.0 -63.6 20 54 311.7 311.7 285.9 311.7 0.00 22 200 11270 -63.5 -75.5 18 12.0 -63.6 360 48 332.2 332.2 292.3 332.2 0.01 23 177 12024 -61.5 -73.5 19 12.0 -61.6 352 42 347.3 347.3 296.0 347.3 0.01 24 160 12646 -64.5 -76.5 18 12.0 -64.6 344 36 352.4 352.4 297.1 352.4 0.01 25 150 13040 -64.9 -76.9 18 12.0 -65.0 340 33 358.3 358.3 298.4 358.3 0.01 26 133 13771 -65.2 -77.2 17 12.0 -65.3 320 40 370.2 370.2 300.6 370.3 0.01 27 120 14395 -65.5 -77.5 17 12.0 -65.6 318 39 380.8 380.8 302.4 380.8 0.01 28 112 14813 -65.3 -77.3 17 12.0 -65.4 317 38 388.8 388.8 303.6 388.8 0.01 29 100 15500 -66.3 -78.3 17 12.0 -66.4 315 36 399.6 399.6 305.2 399.7 0.01 30 70 17650 -68.5 -80.5 16 12.0 -68.6 300 36 437.8 437.8 309.7 437.9 0.01 31 50 19650 -71.5 -83.5 15 12.0 -71.6 290 44 475.0 475.0 313.1 475.0 0.01 32 48 19891 -71.7 -83.7 15 12.0 -71.8 480.1 480.1 313.5 480.1 0.01 TRP 260 9661 -64.7 -77.7 15 13.0 -64.8 20 52 306.4 306.4 284.0 306.4 0.00 WND 133 13771 -65.2 -77.2 17 12.0 -65.3 320 40 370.2 370.2 300.6 370.3 0.01 Sounding variables and indices 1000-500 mb thick: 5089.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.09 inches Sfc-500 mean rel hum: 36.79 % Est. max temperature: -1.75 C = 28.86 F Sfc-Lift cond lev (LCL): 985.95 mb = 436.45 m = 1431.92 ft T: -18.59 C 700-500 lapse rate: 6.96 C/km ThetaE index: 0.18 C Layer 1015.0-1000.0 mb Conv cond level (CCL): 592.34 mb = 4219.04 m = 13841.82 ft Mean mixing ratio: 0.65 g/kg Conv temperature: 14.55 C = 58.19 F Cap Strength: 24.05 C Lifted Index: 25.66 C Risk: None Lifted Index @300 mb: 32.43 C Lifted Index @700 mb: 21.52 C Showalter Index: 12.86 C Risk: None Total Totals Index: 33.80 C Risk: None Vertical Totals Index: 22.40 C Cross Totals Index: 11.40 C K Index: -19.30 Risk: None Sweat Index: 61.00 Risk: None Energy Index: 3.35 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 33.68 J/kg Max Up Vert Vel: 8.21 m/s Conv Inhibition (B-): 39232.05 J/kg Cap Strength: 25.54 C Lift Cond Lev (LCL): 938.98 mb = 800.15 m = 2625.14 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 83 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 1036 68 10 3 -0.5 -3.0 | 274 16 16.1 -1.0 1 1000 331 75 15 -14.5 -3.9 | 313 3 2.1 -2.0 2 925 912 45 11 -7.8 -7.8 | 304 11 8.8 -5.8 3 850 1553 70 15 -14.1 -5.1 | 322 4 2.5 -3.2 4 700 3005 65 23 -20.8 -9.7 | 29 9 -4.2 -7.8 5 500 5420 40 31 -19.9 -23.7 | 9 22 -3.3 -21.8 6 400 6920 35 44 -25.2 -36.0 | 14 35 -8.6 -34.1 7 300 8780 25 56 -23.7 -50.8 | 8 49 -7.1 -48.8 8 260 9661 20 52 -17.8 -48.9 | 1 47 -1.2 -46.9 9 250 9900 20 54 -18.5 -50.7 | 2 49 -1.9 -48.8 10 200 11270 360 48 -0.0 -48.0 | 340 49 16.6 -46.1 11 150 13040 340 33 11.3 -31.0 | 316 40 27.9 -29.1 12 133 13771 320 40 25.7 -30.6 | 304 51 42.3 -28.7 13 100 15500 315 36 25.5 -25.5 | 299 48 42.1 -23.5 14 70 17650 300 36 31.2 -18.0 | 289 50 47.8 -16.1 15 50 19650 290 44 41.3 -15.0 | 283 59 58.0 -13.1 Wind Parameters Mean winds (0-6000m): 53.4 at 22.3 knts Storm direction: 83.4 at 16.7 knts Shear (0-3000m) pos: 2.8 neg: 1.3 tot: 4.1 10-3/s Storm rel Dir Shear (0-3000m): 114.3 deg Storm rel helicity (0-3000m) pos: 35.1 neg: -2.5 tot: 32.6 m^2/s^2 ave: 10.9 10^-3 m/s^2 rel: 0.39 Storm rel vorticity (0-3000m) horiz: 6.3 stream: 2.4 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 1.90 Bulk Shear: 17.75 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 68 11 292 6| 12.1 0.0 12.1| 22.8 -0.2 22.5 45.1 0.40| 18.8 7.6 1000 61 12 301 7| 6.1 1.5 7.6| 24.0 -2.5 21.5 21.5 0.29| 11.9 3.5 1500 62 12 304 7| 5.6 1.0 6.6| 27.1 -2.5 24.6 16.4 0.30| 9.8 2.9 2000 64 13 310 6| 4.2 0.7 4.9| 30.1 -2.5 27.6 13.8 0.36| 8.1 2.9 2500 65 14 320 6| 3.3 1.0 4.4| 32.9 -2.5 30.5 12.2 0.39| 7.0 2.7 3000 65 16 334 5| 2.8 1.3 4.1| 35.1 -2.5 32.6 10.9 0.39| 6.3 2.4 4000 63 18 354 6| 2.1 1.6 3.7| 35.1 -8.0 27.1 6.8 0.29| 5.5 1.6 5000 58 20 3 9| 1.7 1.9 3.5| 35.1 -19.2 15.9 3.2 0.21| 5.0 1.0 6000 53 22 6 11| 1.4 2.2 3.6| 44.3 -24.1 20.1 3.4 0.19| 4.9 0.9 Wrote GIF file: /home/apache/climate/data/raob//U8661/skewt/U8661.skewt.20251209.12.gif