UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101612.upa.cvt Date: 1200Z 16 OCT 25 Searching for U4688... Searching the city database file for: U4688 ... Date:1200Z 16 OCT 25 Station: U4688 WMO ident: 24688 Latitude: 63.27 Longitude: 143.15 ------------------------------------------------------------------------------- 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 ------------------------------------------------------------------------------- 0 1000 232 SFC 936 737 -15.1 -18.0 78 2.9 -15.6 200 1 263.0 263.1 261.5 265.7 0.99 2 925 828 -13.3 -16.0 80 2.7 -13.9 305 7 265.7 265.9 263.9 269.0 1.18 3 906 987 -11.5 -14.1 81 2.6 -12.1 307 7 269.1 269.4 266.7 273.1 1.42 4 850 1474 -15.5 -18.2 80 2.7 -16.0 315 9 269.9 270.1 266.7 272.9 1.07 5 822 1726 -16.7 -19.2 81 2.5 -17.2 323 11 271.2 271.4 267.4 274.1 1.02 6 804 1893 -13.9 -16.8 79 2.9 -14.6 328 12 275.9 276.2 270.9 279.6 1.27 7 708 2851 -16.9 -29.9 31 13.0 -18.8 357 18 282.8 282.9 273.6 284.3 0.45 8 701 2925 -17.3 -31.3 28 14.0 -19.3 360 19 283.2 283.3 273.7 284.5 0.40 9 700 2936 -17.3 -31.3 28 14.0 -19.3 360 19 283.3 283.4 273.8 284.6 0.40 10 639 3612 -21.7 -27.7 58 6.0 -22.6 8 22 285.8 285.9 275.5 287.7 0.61 11 500 5380 -31.9 -36.0 67 4.1 -32.3 30 31 294.1 294.2 279.2 295.3 0.35 12 442 6239 -37.1 -41.5 64 4.4 -37.4 30 31 298.1 298.2 280.8 298.9 0.23 13 400 6920 -42.3 -46.9 61 4.6 -42.5 30 31 300.0 300.0 281.5 300.5 0.14 14 300 8800 -56.9 -61.3 57 4.4 -57.0 40 38 305.1 305.1 283.5 305.3 0.03 15 291 8994 -58.7 -63.2 56 4.5 -58.7 41 38 305.2 305.3 283.5 305.3 0.03 16 260 9705 -61.7 -66.0 56 4.3 -61.7 45 40 310.8 310.8 285.7 310.9 0.02 17 252 9900 -61.7 -66.0 56 4.3 -61.7 41 37 313.6 313.6 286.6 313.7 0.02 18 250 9950 -60.5 -64.7 58 4.2 -60.6 40 36 316.1 316.1 287.5 316.2 0.03 19 200 11350 -55.9 -60.3 58 4.4 -56.0 15 23 344.2 344.3 295.4 344.5 0.06 20 196 11479 -55.1 -59.6 57 4.5 -55.2 14 22 347.5 347.5 296.1 347.8 0.06 21 184 11884 -52.9 -57.9 55 5.0 -53.1 9 20 357.4 357.4 298.2 357.8 0.08 22 150 13200 -53.7 -59.7 48 6.0 -53.9 355 11 377.5 377.6 301.9 377.9 0.08 23 100 15790 -53.9 -63.9 28 10.0 -54.4 10 9 423.6 423.6 308.2 424.0 0.07 24 70 18090 -53.7 -66.7 19 13.0 -54.4 295 5 469.5 469.5 312.6 469.9 0.07 25 56 19523 -54.9 -68.9 16 14.0 -55.7 278 5 497.7 497.7 314.8 498.1 0.06 26 50 20250 -53.9 -68.9 14 15.0 -54.9 270 5 516.5 516.5 316.1 516.9 0.07 27 30 23560 -49.1 -68.1 9 19.0 -51.7 220 9 610.8 610.8 321.2 611.8 0.13 28 22 25593 -47.3 -68.3 7 21.0 -51.1 231 12 672.8 672.9 323.6 674.3 0.18 29 20 26220 -48.3 -69.3 7 21.0 -52.0 235 13 688.3 688.4 324.1 689.8 0.17 30 11 30154 -48.7 -73.7 4 25.0 -54.2 815.2 815.3 327.7 816.9 0.16 TRP 260 9705 -61.7 -66.0 56 4.3 -61.7 45 40 310.8 310.8 285.7 310.9 0.02 WND Sounding variables and indices 1000-500 mb thick: 5148.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.16 inches Sfc-500 mean rel hum: 61.96 % Est. max temperature: -1.18 C = 29.87 F Sfc-Lift cond lev (LCL): 892.90 mb = 1098.23 m = 3603.07 ft T: -12.41 C 700-500 lapse rate: 5.97 C/km ThetaE index: 0.14 C Layer 850.0- 822.0 mb Conv cond level (CCL): 667.12 mb = 3292.92 m = 10803.42 ft Mean mixing ratio: 1.21 g/kg Conv temperature: 6.16 C = 43.09 F Cap Strength: 12.91 C Lifted Index: 18.30 C Risk: None Lifted Index @300 mb: 23.41 C Lifted Index @700 mb: 11.51 C Showalter Index: 17.59 C Risk: None Total Totals Index: 30.10 C Risk: None Vertical Totals Index: 16.40 C Cross Totals Index: 13.70 C K Index: -15.80 Risk: None Sweat Index: 49.00 Risk: None Energy Index: 4.75 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 22.12 J/kg Max Up Vert Vel: 6.65 m/s Conv Inhibition (B-): 64262.92 J/kg Cap Strength: 17.98 C Lift Cond Lev (LCL): 848.21 mb = 1489.86 m = 4887.93 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 46 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 ---------------------------------------------------------- 0 936 737 200 1 0.3 0.9 | 224 17 12.0 12.3 1 925 828 305 7 5.7 -4.0 | 247 19 17.4 7.4 2 850 1474 315 9 6.4 -6.4 | 254 19 18.0 5.0 3 700 2936 360 19 -0.0 -19.0 | 303 14 11.7 -7.6 4 500 5380 30 31 -15.5 -26.8 | 14 16 -3.8 -15.4 5 400 6920 30 31 -15.5 -26.8 | 14 16 -3.8 -15.4 6 300 8800 40 38 -24.4 -29.1 | 36 22 -12.7 -17.7 7 260 9705 45 40 -28.3 -28.3 | 45 24 -16.6 -16.9 8 250 9950 40 36 -23.1 -27.6 | 35 20 -11.5 -16.2 9 200 11350 15 23 -6.0 -22.2 | 332 12 5.7 -10.8 10 150 13200 355 11 1.0 -11.0 | 268 13 12.6 0.4 11 100 15790 10 9 -1.6 -8.9 | 256 10 10.1 2.5 12 70 18090 295 5 4.5 -2.1 | 240 19 16.2 9.3 13 50 20250 270 5 5.0 -0.0 | 236 20 16.7 11.4 14 30 23560 220 9 5.8 6.9 | 224 25 17.5 18.3 15 20 26220 235 13 10.6 7.5 | 230 29 22.3 18.9 Wind Parameters Mean winds (0-6000m): 15.7 at 21.8 knts Storm direction: 45.7 at 16.3 knts Shear (0-3000m) pos: 4.1 neg: 0.0 tot: 4.1 10-3/s Storm rel Dir Shear (0-3000m): 101.0 deg Storm rel helicity (0-3000m) pos: 127.1 neg: 0.0 tot: 127.1 m^2/s^2 ave: 42.4 10^-3 m/s^2 rel: 0.96 Storm rel vorticity (0-3000m) horiz: 5.2 stream: 5.0 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.41 Bulk Shear: 54.25 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 ------------------------------------------------------------------------------- 500 307 7 247 19| 8.9 0.0 8.9| 40.9 0.0 40.9 81.9 0.98| 9.2 9.0 1000 313 8 252 19| 5.9 0.0 5.9| 56.5 0.0 56.5 56.5 0.98| 6.2 6.1 1500 322 10 258 18| 5.1 0.0 5.1| 78.1 0.0 78.1 52.0 0.97| 5.8 5.6 2000 333 11 265 17| 4.8 0.0 4.8| 99.4 0.0 99.4 49.7 0.96| 5.8 5.5 2500 343 13 273 16| 4.4 0.0 4.4|114.8 0.0 114.8 45.9 0.96| 5.5 5.3 3000 349 14 280 15| 4.1 0.0 4.1|127.1 0.0 127.1 42.4 0.96| 5.2 5.0 4000 1 17 296 13| 3.7 0.0 3.7|153.8 0.0 153.8 38.4 0.97| 4.8 4.7 5000 10 20 315 11| 3.3 0.0 3.3|173.5 0.0 173.5 34.7 0.97| 4.4 4.2 6000 16 22 329 11| 2.7 0.0 2.7|173.5 0.0 173.5 28.9 0.97| 3.6 3.5 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20251016.12.gif