UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101112.upa.cvt Date: 1200Z 11 OCT 25 Searching for U4641... Searching the city database file for: U4641 ... Date:1200Z 11 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 1011 114 -5.5 -7.1 88 1.6 -6.0 330 1 266.8 267.2 266.5 272.8 2.21 1 1000 200 -6.7 -9.5 80 2.8 -7.5 350 3 266.5 266.8 265.7 271.5 1.86 2 925 800 -10.3 -13.1 80 2.8 -11.0 45 3 268.8 269.0 266.7 272.9 1.50 3 854 1409 -14.9 -17.5 81 2.6 -15.4 40 3 270.2 270.4 267.0 273.4 1.13 4 850 1445 -14.9 -17.5 81 2.6 -15.4 40 3 270.5 270.7 267.2 273.8 1.14 5 844 1499 -13.7 -16.1 82 2.4 -14.2 40 3 272.3 272.6 268.7 276.0 1.29 6 806 1849 -13.5 -15.8 83 2.3 -14.0 41 5 276.2 276.4 271.2 280.1 1.38 7 746 2432 -18.1 -20.1 84 2.0 -18.5 43 7 277.3 277.5 271.4 280.4 1.04 8 740 2493 -16.3 -18.5 83 2.2 -16.8 44 7 279.9 280.2 273.2 283.5 1.20 9 724 2657 -17.3 -19.1 86 1.8 -17.7 44 8 280.6 280.8 273.5 284.0 1.17 10 700 2909 -18.9 -21.7 79 2.8 -19.4 45 9 281.6 281.7 273.7 284.4 0.96 11 554 4615 -29.3 -35.3 56 6.0 -29.9 66 16 288.7 288.8 276.6 289.8 0.34 12 500 5340 -34.5 -42.5 44 8.0 -35.0 75 19 291.0 291.0 277.4 291.6 0.18 13 492 5452 -35.5 -43.5 44 8.0 -36.0 75 19 291.1 291.1 277.5 291.7 0.17 14 401 6843 -45.5 -52.5 45 7.0 -45.7 80 21 295.6 295.7 279.5 295.9 0.07 15 400 6860 -45.5 -52.5 45 7.0 -45.7 80 21 295.9 295.9 279.6 296.1 0.07 16 346 7817 -51.3 -59.3 38 8.0 -51.5 89 22 300.5 300.5 281.6 300.7 0.04 17 316 8405 -53.3 -61.3 37 8.0 -53.4 95 23 305.6 305.6 283.7 305.8 0.03 18 310 8528 -53.3 -61.3 37 8.0 -53.4 95 24 307.3 307.3 284.4 307.4 0.03 19 300 8740 -52.7 -60.7 37 8.0 -52.8 95 25 311.1 311.1 285.8 311.2 0.04 20 281 9163 -51.1 -59.1 38 8.0 -51.3 95 27 319.2 319.3 288.5 319.4 0.05 21 250 9920 -51.3 -60.3 33 9.0 -51.5 95 31 329.8 329.8 291.7 330.0 0.05 22 200 11370 -51.7 -63.7 22 12.0 -52.0 90 29 350.9 350.9 296.8 351.1 0.04 23 150 13240 -52.3 -67.3 15 15.0 -52.7 80 25 380.0 380.0 302.3 380.1 0.03 24 100 15850 -52.9 -70.9 10 18.0 -53.5 90 15 425.5 425.5 308.3 425.7 0.03 25 97 16047 -51.9 -69.9 10 18.0 -52.6 91 15 431.2 431.2 309.0 431.4 0.03 26 70 18150 -54.5 -74.5 7 20.0 -55.2 105 11 467.8 467.8 312.5 467.9 0.02 27 57 19462 -55.7 -76.7 6 21.0 -56.5 126 13 493.4 493.4 314.5 493.5 0.02 28 50 20300 -54.1 -75.1 6 21.0 -55.2 140 15 516.0 516.0 316.1 516.2 0.03 29 30 23600 -49.3 -73.3 4 24.0 -52.0 170 15 610.2 610.3 321.1 610.7 0.06 30 20 26280 -45.9 -71.9 4 26.0 -50.5 200 23 695.7 695.7 324.3 696.7 0.12 31 19 26624 -42.7 -68.7 4 26.0 -48.7 715.9 716.0 325.0 717.6 0.19 32 16 27769 -48.5 -73.5 4 25.0 -52.9 733.0 733.1 325.5 734.1 0.11 33 12 29669 -46.9 -72.9 4 26.0 -52.8 801.6 801.7 327.3 803.2 0.17 TRP 316 8405 -53.3 -61.3 37 8.0 -53.4 95 23 305.6 305.6 283.7 305.8 0.03 WND Sounding variables and indices 1000-500 mb thick: 5140.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.23 inches Sfc-500 mean rel hum: 72.37 % Est. max temperature: -2.27 C = 27.92 F Sfc-Lift cond lev (LCL): 985.55 mb = 312.00 m = 1023.60 ft T: -7.37 C 700-500 lapse rate: 6.42 C/km ThetaE index: 1.29 C Layer 1000.0- 925.0 mb Conv cond level (CCL): 896.71 mb = 1037.04 m = 3402.33 ft Mean mixing ratio: 1.69 g/kg Conv temperature: -2.98 C = 26.64 F Cap Strength: 14.27 C Lifted Index: 15.52 C Risk: None Lifted Index @300 mb: 27.50 C Lifted Index @700 mb: 9.73 C Showalter Index: 14.35 C Risk: None Total Totals Index: 36.60 C Risk: None Vertical Totals Index: 19.60 C Cross Totals Index: 17.00 C K Index: -0.70 Risk: None Sweat Index: 25.00 Risk: None Energy Index: 3.81 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 5.56 J/kg Max Up Vert Vel: 3.34 m/s Conv Inhibition (B-): 63154.74 J/kg Cap Strength: 15.31 C Lift Cond Lev (LCL): 919.56 mb = 845.00 m = 2772.29 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 93 at 8 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 1011 114 330 1 0.5 -0.9 | 279 8 8.3 -1.3 1 1000 200 350 3 0.5 -3.0 | 292 9 8.3 -3.4 2 925 800 45 3 -2.1 -2.1 | 294 6 5.7 -2.6 3 850 1445 40 3 -1.9 -2.3 | 295 7 5.9 -2.7 4 700 2909 45 9 -6.4 -6.4 | 348 7 1.5 -6.8 5 500 5340 75 19 -18.4 -4.9 | 63 12 -10.5 -5.4 6 400 6860 80 21 -20.7 -3.6 | 72 13 -12.9 -4.1 7 316 8405 95 23 -22.9 2.0 | 96 15 -15.1 1.6 8 300 8740 95 25 -24.9 2.2 | 96 17 -17.1 1.7 9 250 9920 95 31 -30.9 2.7 | 96 23 -23.1 2.3 10 200 11370 90 29 -29.0 0.0 | 89 21 -21.2 -0.4 11 150 13240 80 25 -24.6 -4.3 | 74 17 -16.8 -4.8 12 100 15850 90 15 -15.0 0.0 | 86 7 -7.2 -0.4 13 70 18150 105 11 -10.6 2.8 | 131 4 -2.8 2.4 14 50 20300 140 15 -9.6 11.5 | 171 11 -1.8 11.0 15 30 23600 170 15 -2.6 14.8 | 200 15 5.2 14.3 16 20 26280 200 23 7.9 21.6 | 217 26 15.7 21.2 Wind Parameters Mean winds (0-6000m): 63.3 at 10.5 knts Storm direction: 93.3 at 7.8 knts Shear (0-3000m) pos: 1.5 neg: 0.1 tot: 1.7 10-3/s Storm rel Dir Shear (0-3000m): 76.5 deg Storm rel helicity (0-3000m) pos: 17.4 neg: -0.3 tot: 17.1 m^2/s^2 ave: 5.7 10^-3 m/s^2 rel: 0.76 Storm rel vorticity (0-3000m) horiz: 2.1 stream: 1.6 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.49 Bulk Shear: 11.27 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 6 3 293 8| 2.7 0.0 2.7| 5.7 0.0 5.7 11.4 0.63| 4.1 2.6 1000 25 3 295 7| 1.5 0.0 1.5| 5.8 -0.3 5.5 5.5 0.48| 2.6 1.2 1500 31 3 296 7| 1.0 0.2 1.2| 7.0 -0.3 6.7 4.5 0.53| 2.0 1.1 2000 35 3 299 7| 1.3 0.2 1.4| 10.3 -0.3 10.0 5.0 0.65| 2.0 1.3 2500 38 4 305 6| 1.4 0.1 1.6| 13.7 -0.3 13.4 5.4 0.72| 2.0 1.5 3000 40 5 312 6| 1.5 0.1 1.7| 17.4 -0.3 17.1 5.7 0.76| 2.1 1.6 4000 47 7 329 6| 1.7 0.1 1.8| 26.9 -0.3 26.6 6.6 0.82| 2.2 1.8 5000 56 9 353 5| 1.8 0.1 1.9| 39.1 -0.3 38.8 7.8 0.83| 2.3 1.9 6000 63 10 16 5| 1.7 0.1 1.8| 45.8 -0.3 45.5 7.6 0.83| 2.1 1.8 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20251011.12.gif