UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101012.upa.cvt Date: 1200Z 10 OCT 25 Searching for U4688... Searching the city database file for: U4688 ... Date:1200Z 10 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 194 SFC 931 737 -16.9 -19.6 80 2.7 -17.4 240 3 261.5 261.7 260.2 263.9 0.87 2 925 786 -15.5 -18.3 79 2.8 -16.0 260 3 263.5 263.6 261.9 266.2 0.98 3 906 943 -12.9 -15.4 81 2.5 -13.5 285 3 267.7 267.9 265.5 271.2 1.27 4 850 1426 -14.7 -18.3 74 3.6 -15.4 360 5 270.7 270.9 267.2 273.8 1.06 5 840 1515 -13.7 -17.3 74 3.6 -14.5 6 5 272.7 272.9 268.7 276.0 1.17 6 779 2084 -15.3 -18.8 75 3.5 -16.0 47 8 276.9 277.1 271.2 280.2 1.11 7 720 2673 -18.9 -22.8 71 3.9 -19.6 90 10 279.3 279.4 272.2 281.8 0.85 8 700 2882 -19.5 -23.5 71 4.0 -20.2 105 11 280.9 281.0 273.1 283.4 0.82 9 697 2914 -19.5 -23.5 71 4.0 -20.2 106 11 281.2 281.4 273.3 283.7 0.82 10 663 3286 -19.1 -26.1 54 7.0 -20.3 113 13 285.7 285.9 275.5 287.9 0.69 11 578 4296 -23.9 -28.3 67 4.4 -24.6 133 19 291.6 291.7 278.4 293.6 0.64 12 566 4449 -24.5 -28.6 69 4.1 -25.1 137 20 292.6 292.7 278.9 294.6 0.64 13 500 5340 -31.1 -34.5 72 3.4 -31.4 155 25 295.1 295.2 279.8 296.5 0.41 14 409 6739 -41.1 -45.1 65 4.0 -41.3 160 35 299.7 299.7 281.4 300.2 0.17 15 400 6890 -41.5 -45.7 64 4.2 -41.7 160 36 301.1 301.1 282.0 301.6 0.16 16 358 7636 -45.5 -49.9 61 4.4 -45.7 166 44 305.4 305.4 283.7 305.8 0.11 17 300 8790 -54.5 -59.2 56 4.7 -54.6 175 56 308.5 308.5 284.8 308.7 0.04 18 290 9007 -56.2 -60.9 55 4.7 -56.3 175 60 309.1 309.1 285.0 309.2 0.04 19 277 9297 -58.5 -63.3 54 4.8 -58.6 172 55 309.9 309.9 285.3 310.0 0.03 20 250 9940 -60.7 -65.2 55 4.5 -60.7 165 44 315.8 315.8 287.4 315.9 0.02 21 248 9990 -60.9 -65.5 54 4.6 -61.0 165 42 316.3 316.3 287.5 316.3 0.02 22 240 10193 -60.7 -65.3 55 4.6 -60.7 160 39 319.5 319.5 288.6 319.6 0.02 23 223 10654 -55.5 -60.3 55 4.8 -55.6 150 32 334.3 334.3 292.9 334.5 0.05 24 208 11098 -53.5 -58.5 54 5.0 -53.7 140 25 344.2 344.2 295.4 344.5 0.07 25 200 11350 -53.3 -59.3 48 6.0 -53.5 135 21 348.4 348.4 296.3 348.6 0.06 26 178 12101 -51.5 -58.5 43 7.0 -51.8 127 18 363.1 363.1 299.4 363.5 0.08 27 150 13210 -51.3 -60.3 33 9.0 -51.7 115 13 381.7 381.7 302.6 382.0 0.08 28 100 15840 -51.3 -65.3 17 14.0 -52.0 120 11 428.6 428.6 308.7 428.9 0.06 29 70 18160 -50.9 -68.9 10 18.0 -52.0 140 7 475.5 475.5 313.1 475.8 0.05 30 51 20231 -51.5 -72.5 6 21.0 -52.9 135 16 519.2 519.2 316.2 519.4 0.04 31 50 20360 -51.1 -73.1 6 22.0 -52.5 135 17 523.1 523.1 316.5 523.3 0.04 32 35 22697 -47.9 -72.9 4 25.0 -50.5 159 14 587.6 587.6 320.0 588.0 0.06 33 32 23286 -49.9 -74.9 4 25.0 -52.3 166 14 597.5 597.5 320.5 597.8 0.05 34 30 23710 -48.1 -74.1 3 26.0 -51.1 170 13 613.5 613.5 321.2 613.9 0.06 35 21 26075 -44.1 -70.1 4 26.0 -49.2 152 15 691.5 691.5 324.2 692.7 0.14 36 20 26400 -45.7 -71.7 4 26.0 -50.4 150 15 696.3 696.3 324.3 697.3 0.12 37 16 27882 -47.1 -73.1 4 26.0 -52.0 737.6 737.7 325.6 738.7 0.12 TRP 248 9990 -60.9 -65.5 54 4.6 -61.0 165 42 316.3 316.3 287.5 316.3 0.02 WND 290 9007 -56.2 -60.9 55 4.7 -56.3 175 60 309.1 309.1 285.0 309.2 0.04 Sounding variables and indices 1000-500 mb thick: 5146.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.17 inches Sfc-500 mean rel hum: 69.51 % Est. max temperature: -1.96 C = 28.48 F Sfc-Lift cond lev (LCL): 890.85 mb = 1070.58 m = 3512.36 ft T: -13.38 C 700-500 lapse rate: 4.72 C/km ThetaE index: 0.00 C Layer 931.0-5177.3 mb Conv cond level (CCL): 931.00 mb = 736.80 m = 2417.30 ft Mean mixing ratio: 1.14 g/kg Conv temperature: -16.40 C = 2.48 F Cap Strength: 17.96 C Lifted Index: 19.15 C Risk: None Lifted Index @300 mb: 25.90 C Lifted Index @700 mb: 9.37 C Showalter Index: 17.75 C Risk: None Total Totals Index: 29.20 C Risk: None Vertical Totals Index: 16.40 C Cross Totals Index: 12.80 C K Index: -5.90 Risk: None Sweat Index: 35.00 Risk: None Energy Index: 4.81 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 30.22 J/kg Max Up Vert Vel: 7.77 m/s Conv Inhibition (B-): 67983.56 J/kg Cap Strength: 19.04 C Lift Cond Lev (LCL): 837.21 mb = 1540.57 m = 5054.29 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 174 at 13 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 ---------------------------------------------------------- 0 931 737 240 3 2.6 1.5 | 341 12 3.8 -11.2 1 925 786 260 3 3.0 0.5 | 341 13 4.2 -12.1 2 850 1426 360 5 -0.0 -5.0 | 356 18 1.2 -17.7 3 700 2882 105 11 -10.6 2.8 | 44 14 -9.4 -9.8 4 500 5340 155 25 -10.6 22.7 | 137 14 -9.3 10.0 5 400 6890 160 36 -12.3 33.8 | 152 24 -11.1 21.2 6 300 8790 175 56 -4.9 55.8 | 175 43 -3.6 43.1 7 290 9007 175 60 -5.2 59.8 | 175 47 -4.0 47.1 8 250 9940 165 44 -11.4 42.5 | 161 32 -10.2 29.8 9 248 9990 165 42 -10.9 40.6 | 161 30 -9.6 27.9 10 200 11350 135 21 -14.8 14.8 | 99 14 -13.6 2.2 11 150 13210 115 13 -11.8 5.5 | 56 13 -10.6 -7.2 12 100 15840 120 11 -9.5 5.5 | 49 11 -8.3 -7.2 13 70 18160 140 7 -4.5 5.4 | 24 8 -3.3 -7.3 14 50 20360 135 17 -12.0 12.0 | 87 11 -10.8 -0.6 15 30 23710 170 13 -2.3 12.8 | 98 1 -1.0 0.1 16 20 26400 150 15 -7.5 13.0 | 93 6 -6.3 0.3 Wind Parameters Mean winds (0-6000m): 144.4 at 17.0 knts Storm direction: 174.4 at 12.7 knts Shear (0-3000m) pos: 3.0 neg: 0.0 tot: 3.0 10-3/s Storm rel Dir Shear (0-3000m): 90.0 deg Storm rel helicity (0-3000m) pos: 106.9 neg: -0.2 tot: 106.7 m^2/s^2 ave: 35.6 10^-3 m/s^2 rel: 0.82 Storm rel vorticity (0-3000m) horiz: 5.2 stream: 4.3 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.55 Bulk Shear: 54.49 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 4 343 15| 5.5 0.0 5.5| 8.7 -0.2 8.4 16.9 0.35| 6.0 2.1 1000 346 4 352 17| 4.6 0.0 4.6| 30.9 -0.2 30.7 30.7 0.62| 5.6 3.5 1500 19 5 2 18| 3.9 0.0 3.9| 55.2 -0.2 54.9 36.6 0.74| 5.4 4.0 2000 54 6 14 17| 3.3 0.0 3.3| 79.1 -0.2 78.8 39.4 0.77| 5.7 4.4 2500 81 7 24 15| 3.1 0.0 3.1| 93.8 -0.2 93.5 37.4 0.79| 5.5 4.4 3000 95 9 31 14| 3.0 0.0 3.0|106.9 -0.2 106.7 35.6 0.82| 5.2 4.3 4000 118 11 49 11| 2.8 0.0 2.8|136.1 -0.2 135.9 34.0 0.86| 5.0 4.3 5000 136 14 72 9| 2.8 0.0 2.8|162.0 -0.2 161.8 32.4 0.85| 5.0 4.2 6000 144 17 98 9| 3.0 0.0 3.0|177.8 -0.2 177.6 29.6 0.79| 4.8 3.8 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20251010.12.gif