UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2026011812.upa.cvt Date: 1200Z 18 JAN 26 Searching for U4688... Searching the city database file for: U4688 ... Date:1200Z 18 JAN 26 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 331 SFC 942 741 -38.9 -41.8 74 2.9 -39.0 250 1 238.3 238.3 238.1 238.6 0.10 2 925 866 -37.7 -41.9 65 4.2 -37.8 0 0 240.8 240.8 240.4 241.0 0.10 3 877 1236 -34.1 -38.2 66 4.1 -34.3 0 0 248.2 248.2 247.4 248.6 0.16 4 862 1358 -30.3 -34.2 69 3.9 -30.6 0 0 253.4 253.4 252.2 254.1 0.24 5 855 1417 -23.1 -27.1 70 4.0 -23.6 0 0 261.5 261.6 259.4 262.9 0.48 6 850 1460 -20.7 -24.5 72 3.8 -21.2 0 0 264.5 264.6 261.9 266.2 0.62 7 849 1469 -20.5 -24.3 72 3.8 -21.0 360 0 264.8 264.9 262.2 266.5 0.63 8 816 1765 -15.7 -19.0 76 3.3 -16.4 357 3 272.9 273.0 268.5 275.9 1.04 9 780 2107 -13.1 -15.8 80 2.7 -13.7 353 6 279.2 279.4 273.1 283.3 1.43 10 732 2590 -13.5 -16.0 81 2.5 -14.1 348 10 283.9 284.1 275.8 288.3 1.50 11 700 2929 -15.7 -18.3 80 2.6 -16.3 345 13 285.1 285.3 276.1 289.0 1.29 12 680 3147 -17.5 -20.1 80 2.6 -18.0 342 14 285.5 285.7 276.1 288.9 1.14 13 575 4382 -25.5 -38.5 29 13.0 -26.8 325 20 290.1 290.2 277.1 290.9 0.24 14 534 4914 -29.1 -44.1 22 15.0 -30.2 317 23 292.0 292.0 277.9 292.5 0.14 15 500 5380 -32.9 -48.9 19 16.0 -33.8 310 25 292.9 292.9 278.3 293.2 0.09 16 400 6900 -46.3 -59.3 22 13.0 -46.6 310 25 294.8 294.8 279.0 294.9 0.03 17 358 7627 -52.7 -63.7 25 11.0 -52.8 304 22 295.7 295.7 279.4 295.8 0.02 18 300 8750 -60.3 -70.3 26 10.0 -60.4 295 17 300.3 300.3 281.5 300.4 0.01 19 252 9822 -66.1 -76.1 23 10.0 -66.1 290 21 307.1 307.1 284.2 307.1 0.00 20 250 9870 -65.9 -75.9 24 10.0 -66.0 290 23 308.1 308.1 284.6 308.1 0.01 21 203 11148 -62.3 -72.3 25 10.0 -62.4 234 10 332.7 332.7 292.4 332.7 0.01 22 200 11240 -61.5 -71.5 25 10.0 -61.6 230 9 335.4 335.4 293.2 335.4 0.01 23 151 13017 -52.3 -62.3 29 10.0 -52.7 108 5 379.2 379.2 302.2 379.5 0.06 24 150 13060 -52.1 -62.1 29 10.0 -52.5 105 5 380.3 380.3 302.3 380.6 0.06 25 101 15644 -46.7 -58.7 24 12.0 -47.7 168 19 436.3 436.3 309.6 437.0 0.14 26 100 15710 -46.7 -58.7 24 12.0 -47.7 170 19 437.5 437.5 309.7 438.2 0.14 27 70 18060 -49.5 -62.5 20 13.0 -50.5 165 23 478.5 478.5 313.4 479.2 0.12 28 50 20250 -53.1 -67.1 17 14.0 -54.1 180 31 518.3 518.4 316.2 518.9 0.09 29 30 23520 -56.9 -70.9 15 14.0 -58.0 175 40 589.5 589.6 320.2 590.2 0.09 30 23 25209 -57.9 -71.9 15 14.0 -59.2 175 44 633.1 633.2 322.0 633.9 0.10 31 20 26100 -55.3 -69.3 16 14.0 -57.1 175 46 666.9 667.0 323.3 668.3 0.17 32 12 29387 -51.7 -65.7 17 14.0 -55.2 784.6 784.8 327.0 789.1 0.46 33 11 29948 -53.9 -67.9 16 14.0 -57.1 796.3 796.5 327.3 800.1 0.37 TRP 252 9822 -66.1 -76.1 23 10.0 -66.1 290 21 307.1 307.1 284.2 307.1 0.00 WND Sounding variables and indices 1000-500 mb thick: 5049.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.14 inches Sfc-500 mean rel hum: 58.14 % Est. max temperature: -0.80 C = 30.56 F Sfc-Lift cond lev (LCL): 895.60 mb = 1090.39 m = 3577.37 ft T: -35.52 C 700-500 lapse rate: 7.02 C/km Conv cond level (CCL): 942.00 mb = 740.78 m = 2430.35 ft Mean mixing ratio: 0.22 g/kg Conv temperature: -34.28 C = -29.71 F Cap Strength: 36.04 C Lifted Index: 36.10 C Risk: None Lifted Index @300 mb: 36.42 C Lifted Index @700 mb: 32.85 C Showalter Index: 22.04 C Risk: None Total Totals Index: 20.60 C Risk: None Vertical Totals Index: 12.20 C Cross Totals Index: 8.40 C K Index: -14.90 Risk: None Sweat Index: 25.00 Risk: None Energy Index: 5.90 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 102.61 J/kg Max Up Vert Vel: 14.33 m/s Conv Inhibition (B-): 83726.60 J/kg Cap Strength: 36.08 C Lift Cond Lev (LCL): 861.83 mb = 1359.38 m = 4459.84 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 349 at 11 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 ---------------------------------------------------------- 0 942 741 250 1 0.9 0.3 | 174 12 -1.2 11.5 1 925 866 0 0 -0.0 -0.0 | 169 11 -2.1 11.2 2 850 1460 0 0 -0.0 -0.0 | 169 11 -2.1 11.2 3 700 2929 345 13 3.4 -12.6 | 318 2 1.3 -1.4 4 500 5380 310 25 19.2 -16.1 | 286 18 17.0 -4.9 5 400 6900 310 25 19.2 -16.1 | 286 18 17.0 -4.9 6 300 8750 295 17 15.4 -7.2 | 253 14 13.3 4.0 7 252 9822 290 21 19.7 -7.2 | 257 18 17.6 4.0 8 250 9870 290 23 21.6 -7.9 | 260 20 19.5 3.3 9 200 11240 230 9 6.9 5.8 | 196 18 4.8 17.0 10 150 13060 105 5 -4.8 1.3 | 151 14 -6.9 12.5 11 100 15710 170 19 -3.3 18.7 | 170 30 -5.4 29.9 12 70 18060 165 23 -6.0 22.2 | 166 34 -8.1 33.4 13 50 20250 180 31 0.0 31.0 | 177 42 -2.1 42.2 14 30 23520 175 40 -3.5 39.8 | 174 51 -5.6 51.0 15 20 26100 175 46 -4.0 45.8 | 174 57 -6.1 57.0 Wind Parameters Mean winds (0-6000m): 319.3 at 15.2 knts Storm direction: 349.3 at 11.4 knts Shear (0-3000m) pos: 0.2 neg: 2.9 tot: 3.1 10-3/s Storm rel Dir Shear (0-3000m): 131.8 deg Storm rel helicity (0-3000m) pos: 0.6 neg: -5.5 tot: -4.9 m^2/s^2 ave: -1.6 10^-3 m/s^2 rel: 0.00 Storm rel vorticity (0-3000m) horiz: 3.3 stream: 0.0 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 3.39 Bulk Shear: 30.24 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 ------------------------------------------------------------------------------- 500 250 0 170 11| 1.0 0.0 1.0| 0.0 -2.9 -2.9 -5.8 -0.80| 1.2 -1.0 1000 345 0 170 11| 0.5 1.3 1.8| 0.0 -4.0 -4.0 -4.0 -0.37| 1.9 -0.7 1500 351 2 169 10| 0.3 2.4 2.7| 0.0 -4.5 -4.5 -3.0 -0.20| 2.8 -0.6 2000 346 4 171 8| 0.3 2.9 3.2| 0.4 -4.5 -4.0 -2.0 -0.01| 3.3 -0.0 2500 344 5 174 6| 0.2 3.0 3.2| 0.6 -4.6 -4.0 -1.6 0.04| 3.4 0.1 3000 341 7 182 5| 0.2 2.9 3.1| 0.6 -5.5 -4.9 -1.6 0.00| 3.3 0.0 4000 332 10 230 3| 0.1 2.8 2.9| 0.6 -11.4 -10.8 -2.7 -0.08| 3.4 -0.3 5000 323 13 263 6| 0.1 2.6 2.7| 0.6 -20.0 -19.4 -3.9 -0.13| 3.2 -0.4 6000 319 15 272 8| 0.1 2.1 2.2| 0.6 -20.0 -19.4 -3.2 -0.13| 2.7 -0.4 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20260118.12.gif