UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025100612.upa.cvt Date: 1200Z 6 OCT 25 Searching for U4688... Searching the city database file for: U4688 ... Date:1200Z 6 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 165 SFC 928 741 -12.9 -16.1 77 3.2 -13.6 270 5 265.9 266.1 264.0 269.1 1.17 2 925 766 -12.3 -15.7 76 3.4 -13.0 275 5 266.7 266.9 264.7 270.1 1.21 3 850 1402 -16.7 -20.7 71 4.0 -17.4 340 5 268.7 268.8 265.4 271.1 0.86 4 793 1918 -20.7 -23.7 77 3.0 -21.1 16 6 269.8 269.9 265.9 271.8 0.71 5 700 2839 -20.7 -23.8 76 3.1 -21.2 80 9 279.6 279.7 272.3 282.0 0.80 6 671 3151 -21.7 -25.2 73 3.5 -22.2 71 8 281.8 282.0 273.5 284.1 0.73 7 500 5260 -35.1 -37.8 76 2.7 -35.3 10 5 290.2 290.3 277.3 291.2 0.29 8 400 6790 -44.3 -47.9 67 3.6 -44.5 300 9 297.4 297.4 280.4 297.9 0.13 9 332 8018 -52.1 -55.6 66 3.5 -52.2 306 15 303.0 303.0 282.7 303.2 0.06 10 300 8670 -54.7 -58.7 61 4.0 -54.8 310 19 308.2 308.3 284.7 308.4 0.05 11 290 8887 -56.1 -59.9 62 3.8 -56.2 307 18 309.3 309.3 285.1 309.4 0.04 12 282 9065 -56.7 -60.6 61 3.9 -56.8 305 17 310.9 310.9 285.7 311.0 0.04 13 257 9654 -56.7 -61.0 58 4.3 -56.8 301 14 319.2 319.2 288.5 319.4 0.04 14 250 9830 -55.3 -59.6 59 4.3 -55.4 300 13 323.9 323.9 290.0 324.0 0.05 15 231 10336 -52.1 -57.0 55 4.9 -52.2 288 11 336.1 336.1 293.4 336.4 0.07 16 230 10364 -51.9 -56.8 56 4.9 -52.1 287 11 336.8 336.9 293.6 337.2 0.08 17 200 11270 -50.5 -56.5 49 6.0 -50.7 265 7 352.8 352.8 297.3 353.2 0.09 18 192 11538 -49.3 -56.3 44 7.0 -49.6 265 7 358.9 358.9 298.5 359.3 0.10 19 150 13160 -50.5 -62.5 23 12.0 -51.0 265 7 383.1 383.1 302.8 383.3 0.06 20 140 13608 -51.1 -64.1 20 13.0 -51.6 262 8 389.6 389.6 303.8 389.9 0.05 21 100 15800 -48.9 -66.9 11 18.0 -49.8 250 13 433.2 433.3 309.2 433.5 0.05 22 70 18140 -48.9 -70.9 6 22.0 -50.3 245 15 479.8 479.8 313.4 480.0 0.04 23 50 20340 -50.3 -74.3 4 24.0 -51.9 225 23 524.9 524.9 316.6 525.1 0.03 24 48 20607 -50.7 -74.7 4 24.0 -52.3 225 23 530.1 530.2 316.9 530.4 0.03 25 42 21486 -46.3 -72.3 4 26.0 -49.0 227 22 561.7 561.7 318.8 562.0 0.05 26 30 23720 -47.1 -73.1 4 26.0 -50.3 230 21 616.2 616.3 321.3 616.7 0.06 27 27 24412 -48.5 -73.5 4 25.0 -51.6 234 24 631.2 631.2 322.0 631.7 0.07 28 24 25188 -46.3 -72.3 4 26.0 -50.3 238 27 659.2 659.2 323.0 659.9 0.09 29 20 26390 -48.3 -73.3 4 25.0 -52.2 245 31 688.3 688.4 324.1 689.1 0.09 30 19 26728 -47.5 -73.5 3 26.0 -51.8 701.0 701.0 324.5 701.8 0.10 31 14 28758 -45.1 -71.1 4 26.0 -51.2 773.1 773.2 326.6 774.9 0.19 TRP 282 9065 -56.7 -60.6 61 3.9 -56.8 305 17 310.9 310.9 285.7 311.0 0.04 WND Sounding variables and indices 1000-500 mb thick: 5095.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.14 inches Sfc-500 mean rel hum: 74.84 % Est. max temperature: -7.64 C = 18.24 F Sfc-Lift cond lev (LCL): 881.22 mb = 1130.72 m = 3709.67 ft T: -14.82 C 700-500 lapse rate: 5.95 C/km ThetaE index: 0.00 C Layer 928.0--5625199722685060801057783808.0 mb Conv cond level (CCL): 807.47 mb = 1783.77 m = 5852.20 ft Mean mixing ratio: 1.00 g/kg Conv temperature: -9.37 C = 15.14 F Cap Strength: 10.92 C Lifted Index: 16.21 C Risk: None Lifted Index @300 mb: 26.61 C Lifted Index @700 mb: 9.19 C Showalter Index: 15.86 C Risk: None Total Totals Index: 32.80 C Risk: None Vertical Totals Index: 18.40 C Cross Totals Index: 14.40 C K Index: -5.40 Risk: None Sweat Index: 15.00 Risk: None Energy Index: 4.24 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 7.12 J/kg Max Up Vert Vel: 3.77 m/s Conv Inhibition (B-): 68742.09 J/kg Cap Strength: 15.97 C Lift Cond Lev (LCL): 827.12 mb = 1604.93 m = 5265.46 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 54 at 5 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 ---------------------------------------------------------- 0 928 741 270 5 5.0 -0.0 | 252 10 9.1 3.0 1 925 766 275 5 5.0 -0.4 | 254 9 9.1 2.5 2 850 1402 340 5 1.7 -4.7 | 286 6 5.8 -1.7 3 700 2839 80 9 -8.9 -1.6 | 107 5 -4.8 1.4 4 500 5260 10 5 -0.9 -4.9 | 301 4 3.2 -1.9 5 400 6790 300 9 7.8 -4.5 | 277 12 11.9 -1.5 6 300 8670 310 19 14.6 -12.2 | 296 21 18.7 -9.2 7 282 9065 305 17 13.9 -9.8 | 291 19 18.0 -6.8 8 250 9830 300 13 11.3 -6.5 | 283 16 15.4 -3.5 9 200 11270 265 7 7.0 0.6 | 252 12 11.1 3.6 10 150 13160 265 7 7.0 0.6 | 252 12 11.1 3.6 11 100 15800 250 13 12.2 4.4 | 246 18 16.3 7.4 12 70 18140 245 15 13.6 6.3 | 242 20 17.7 9.3 13 50 20340 225 23 16.3 16.3 | 227 28 20.4 19.2 14 30 23720 230 21 16.1 13.5 | 231 26 20.2 16.5 15 20 26390 245 31 28.1 13.1 | 243 36 32.2 16.1 Wind Parameters Mean winds (0-6000m): 24.0 at 6.8 knts Storm direction: 54.0 at 5.1 knts Shear (0-3000m) pos: 2.3 neg: 0.5 tot: 2.8 10-3/s Storm rel Dir Shear (0-3000m): 161.8 deg Storm rel helicity (0-3000m) pos: 22.0 neg: -2.9 tot: 19.1 m^2/s^2 ave: 6.4 10^-3 m/s^2 rel: 0.57 Storm rel vorticity (0-3000m) horiz: 3.9 stream: 2.3 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.81 Bulk Shear: 8.78 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 ------------------------------------------------------------------------------- 500 298 5 266 9| 4.6 0.0 4.6| 8.9 0.0 8.9 17.8 0.84| 4.8 4.1 1000 324 5 279 7| 4.1 0.0 4.1| 13.5 0.0 13.5 13.5 0.81| 4.4 3.6 1500 350 6 297 6| 3.8 0.0 3.8| 17.1 0.0 17.1 11.4 0.84| 4.4 3.7 2000 19 6 325 4| 3.5 0.0 3.5| 21.0 0.0 21.0 10.5 0.86| 4.6 4.0 2500 40 7 6 2| 2.8 0.2 3.0| 22.0 -1.5 20.5 8.2 0.72| 4.3 3.1 3000 47 7 28 2| 2.3 0.5 2.8| 22.0 -2.9 19.1 6.4 0.57| 3.9 2.3 4000 47 7 29 2| 1.7 0.8 2.6| 22.0 -5.1 16.9 4.2 0.36| 3.4 1.2 5000 42 7 8 2| 1.4 1.1 2.5| 22.0 -6.6 15.5 3.1 0.26| 3.2 0.8 6000 24 7 337 3| 1.2 1.4 2.5| 22.0 -15.4 6.7 1.1 0.12| 3.2 0.4 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20251006.12.gif