UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025100800.upa.cvt Date: 0000Z 8 OCT 25 Searching for U4641... Searching the city database file for: U4641 ... Date:0000Z 8 OCT 25 Station: U4641 WMO ident: 24641 Latitude: 63.77 Longitude: 121.62 ------------------------------------------------------------------------------- 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 1012 108 -9.7 -12.1 83 2.4 -10.3 310 5 262.6 262.8 262.2 266.6 1.49 1 1000 200 -10.9 -14.1 77 3.2 -11.6 335 5 262.2 262.5 261.5 265.7 1.28 2 985 316 -11.9 -14.8 79 2.9 -12.5 341 9 262.4 262.6 261.5 265.7 1.23 3 925 798 -13.5 -15.2 87 1.7 -13.9 5 25 265.5 265.7 263.9 269.0 1.27 4 913 897 -14.3 -16.1 86 1.8 -14.7 7 24 265.7 265.9 263.9 269.0 1.19 5 906 956 -14.5 -16.6 84 2.1 -14.9 7 23 266.1 266.2 264.1 269.2 1.15 6 850 1440 -13.7 -18.7 66 5.0 -14.7 15 17 271.8 272.0 267.8 274.7 1.03 7 808 1825 -12.9 -21.9 47 9.0 -14.7 14 18 276.6 276.7 270.5 279.0 0.82 8 786 2035 -13.9 -23.9 43 10.0 -15.7 13 19 277.7 277.9 271.1 279.8 0.70 9 700 2907 -18.3 -28.3 41 10.0 -19.8 10 21 282.2 282.3 273.3 283.9 0.53 10 684 3079 -19.1 -30.1 37 11.0 -20.7 9 21 283.2 283.3 273.8 284.6 0.46 11 626 3731 -23.9 -34.9 36 11.0 -25.1 7 22 285.0 285.0 274.5 286.0 0.31 12 562 4507 -29.9 -34.9 62 5.0 -30.4 3 24 286.8 286.9 275.6 288.0 0.35 13 500 5330 -34.9 -39.3 64 4.4 -35.2 360 25 290.5 290.5 277.3 291.3 0.25 14 474 5702 -36.9 -41.3 64 4.4 -37.2 1 25 292.5 292.5 278.2 293.2 0.22 15 411 6677 -42.9 -47.5 61 4.6 -43.1 4 25 296.9 296.9 280.1 297.4 0.13 16 400 6860 -44.5 -49.0 61 4.5 -44.7 5 25 297.2 297.2 280.3 297.5 0.11 17 309 8543 -56.9 -61.7 54 4.8 -57.0 9 29 302.6 302.6 282.5 302.7 0.03 18 300 8730 -57.7 -62.5 54 4.8 -57.8 10 29 304.0 304.0 283.0 304.1 0.03 19 278 9207 -59.7 -64.4 54 4.7 -59.7 15 31 307.8 307.8 284.5 307.9 0.02 20 250 9870 -59.1 -64.0 53 4.9 -59.2 25 27 318.2 318.2 288.2 318.3 0.03 21 245 9997 -59.1 -64.0 53 4.9 -59.2 24 26 320.0 320.1 288.8 320.2 0.03 22 217 10771 -52.3 -57.3 55 5.0 -52.5 19 18 341.9 341.9 294.8 342.2 0.08 23 200 11300 -52.3 -58.3 48 6.0 -52.5 15 13 349.9 350.0 296.7 350.3 0.07 24 150 13170 -50.5 -60.5 30 10.0 -50.9 15 11 383.1 383.1 302.8 383.4 0.07 25 136 13808 -49.9 -60.9 26 11.0 -50.4 10 10 395.0 395.0 304.6 395.4 0.08 26 100 15810 -50.7 -66.7 13 16.0 -51.5 355 5 429.8 429.8 308.9 430.0 0.05 27 83 17020 -51.7 -69.7 10 18.0 -52.5 308 5 451.3 451.3 311.0 451.5 0.04 28 70 18120 -53.3 -72.3 8 19.0 -54.1 265 5 470.4 470.4 312.7 470.5 0.03 29 50 20290 -52.7 -73.7 6 21.0 -53.9 265 5 519.3 519.3 316.2 519.5 0.04 30 39 21892 -53.1 -75.1 5 22.0 -54.6 243 16 556.5 556.5 318.5 556.8 0.04 31 30 23600 -48.3 -73.3 4 25.0 -51.2 220 27 613.0 613.0 321.2 613.4 0.06 32 22 25648 -44.9 -70.9 4 26.0 -49.6 212 34 680.0 680.0 323.8 681.0 0.12 33 20 26280 -46.9 -72.9 4 26.0 -51.2 210 36 692.6 692.7 324.2 693.5 0.10 34 15 28189 -46.9 -72.9 4 26.0 -52.1 220 39 752.0 752.1 326.0 753.3 0.13 35 13 29145 -43.3 -69.3 4 26.0 -50.4 226 41 795.9 796.0 327.2 798.5 0.26 36 10 30910 -44.1 -70.1 4 26.0 -51.9 235 44 854.9 855.1 328.5 858.1 0.30 37 9.6 31186 -41.3 -68.3 4 27.0 -50.6 875.5 875.8 329.0 880.0 0.41 38 7.7 32677 -43.3 -69.3 4 26.0 -52.5 924.5 924.7 329.9 929.6 0.44 39 7.1 33225 -41.5 -68.5 4 27.0 -52.0 953.6 953.9 330.5 960.0 0.53 TRP 278 9207 -59.7 -64.4 54 4.7 -59.7 15 31 307.8 307.8 284.5 307.9 0.02 WND Sounding variables and indices 1000-500 mb thick: 5130.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.17 inches Sfc-500 mean rel hum: 56.15 % Est. max temperature: -1.70 C = 28.94 F Sfc-Lift cond lev (LCL): 973.74 mb = 404.50 m = 1327.08 ft T: -12.19 C 700-500 lapse rate: 6.85 C/km ThetaE index: 0.85 C Layer 1000.0- 925.0 mb Conv cond level (CCL): 691.50 mb = 2997.86 m = 9835.37 ft Mean mixing ratio: 1.26 g/kg Conv temperature: 10.56 C = 51.00 F Cap Strength: 16.93 C Lifted Index: 19.22 C Risk: None Lifted Index @300 mb: 26.10 C Lifted Index @700 mb: 14.49 C Showalter Index: 13.19 C Risk: None Total Totals Index: 37.40 C Risk: None Vertical Totals Index: 21.20 C Cross Totals Index: 16.20 C K Index: -7.50 Risk: None Sweat Index: 59.00 Risk: None Energy Index: 3.52 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 10.90 J/kg Max Up Vert Vel: 4.67 m/s Conv Inhibition (B-): 74421.16 J/kg Cap Strength: 19.10 C Lift Cond Lev (LCL): 924.11 mb = 805.34 m = 2642.16 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 36 at 16 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 1012 108 310 5 3.8 -3.2 | 234 16 13.1 9.6 1 1000 200 335 5 2.1 -4.5 | 234 14 11.3 8.3 2 925 798 5 25 -2.2 -24.9 | 330 14 7.1 -12.1 3 850 1440 15 17 -4.4 -16.4 | 307 6 4.8 -3.6 4 700 2907 10 21 -3.6 -20.7 | 325 10 5.6 -7.9 5 500 5330 360 25 -0.0 -25.0 | 323 15 9.2 -12.2 6 400 6860 5 25 -2.2 -24.9 | 330 14 7.1 -12.1 7 300 8730 10 29 -5.0 -28.6 | 345 16 4.2 -15.7 8 278 9207 15 31 -8.0 -29.9 | 356 17 1.2 -17.1 9 250 9870 25 27 -11.4 -24.5 | 11 12 -2.2 -11.6 10 200 11300 15 13 -3.4 -12.6 | 267 6 5.9 0.3 11 150 13170 15 11 -2.8 -10.6 | 251 7 6.4 2.2 12 100 15810 355 5 0.4 -5.0 | 231 12 9.7 7.8 13 70 18120 265 5 5.0 0.4 | 227 19 14.2 13.3 14 50 20290 265 5 5.0 0.4 | 227 19 14.2 13.3 15 30 23600 220 27 17.4 20.7 | 218 43 26.6 33.5 16 20 26280 210 36 18.0 31.2 | 212 52 27.2 44.0 17 10 30910 235 44 36.0 25.2 | 230 59 45.3 38.1 Wind Parameters Mean winds (0-6000m): 5.7 at 21.1 knts Storm direction: 35.7 at 15.8 knts Shear (0-3000m) pos: 2.7 neg: 0.7 tot: 3.5 10-3/s Storm rel Dir Shear (0-3000m): 91.1 deg Storm rel helicity (0-3000m) pos: 75.0 neg: -7.4 tot: 67.6 m^2/s^2 ave: 22.5 10^-3 m/s^2 rel: 0.55 Storm rel vorticity (0-3000m) horiz: 6.3 stream: 3.5 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.64 Bulk Shear: 17.16 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 ------------------------------------------------------------------------------- 500 349 11 258 12| 16.0 0.0 16.0| 46.8 0.0 46.8 93.6 0.87| 16.9 14.6 1000 2 17 293 9| 9.8 0.0 9.8| 70.6 -2.9 67.7 67.7 0.73| 14.3 10.5 1500 6 17 300 9| 5.5 0.0 5.5| 70.9 -7.4 63.6 42.4 0.56| 11.1 6.3 2000 8 17 303 8| 4.1 0.4 4.5| 72.6 -7.4 65.2 32.6 0.57| 8.7 4.9 2500 9 18 307 8| 3.3 0.6 3.9| 74.1 -7.4 66.7 26.7 0.56| 7.3 4.1 3000 9 18 310 8| 2.7 0.7 3.5| 75.0 -7.4 67.6 22.5 0.55| 6.3 3.5 4000 8 19 314 9| 2.1 0.8 2.9| 75.0 -7.6 67.4 16.9 0.52| 5.0 2.6 5000 7 20 317 10| 1.6 0.9 2.5| 75.0 -8.6 66.4 13.3 0.48| 4.3 2.0 6000 6 21 319 11| 1.4 0.8 2.2| 78.5 -9.0 69.5 11.6 0.48| 3.7 1.8 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20251008.00.gif