UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2026010812.upa.cvt Date: 1200Z 8 JAN 26 Searching for U4688... Searching the city database file for: U4688 ... Date:1200Z 8 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 172 1 925 705 200 1 SFC 920 742 -41.9 -44.7 74 2.8 -42.0 200 1 236.8 236.8 236.6 237.0 0.08 3 850 1294 -30.7 -34.0 73 3.3 -30.9 150 13 254.0 254.0 252.7 254.7 0.25 4 790 1821 -21.5 -25.1 73 3.6 -22.0 163 21 269.2 269.3 265.3 271.0 0.63 5 704 2659 -26.7 -30.0 74 3.3 -27.1 184 32 272.5 272.5 267.3 273.8 0.45 6 700 2700 -27.3 -30.7 73 3.4 -27.6 185 33 272.3 272.3 267.0 273.5 0.42 7 542 4479 -42.9 -46.2 70 3.3 -43.0 185 35 274.3 274.4 267.8 274.7 0.11 8 500 5020 -44.7 -48.1 69 3.4 -44.8 185 36 278.5 278.6 270.4 278.9 0.10 9 441 5854 -48.5 -52.0 67 3.5 -48.6 188 45 283.9 283.9 273.5 284.2 0.07 10 400 6490 -53.1 -56.6 66 3.5 -53.2 190 52 286.0 286.0 274.6 286.1 0.05 11 349 7356 -58.5 -62.1 63 3.6 -58.5 185 52 290.1 290.1 276.7 290.1 0.03 12 342 7483 -58.5 -62.1 63 3.6 -58.5 186 50 291.7 291.7 277.6 291.8 0.03 13 300 8310 -55.9 -59.4 65 3.5 -55.9 190 35 306.6 306.6 284.1 306.7 0.04 14 250 9480 -54.5 -58.3 63 3.8 -54.6 190 25 325.0 325.1 290.3 325.3 0.06 15 230 10011 -54.7 -58.5 63 3.8 -54.8 194 24 332.6 332.6 292.5 332.8 0.06 16 214 10474 -51.5 -55.1 65 3.6 -51.7 197 22 344.5 344.5 295.5 344.9 0.10 17 200 10910 -52.5 -56.3 63 3.8 -52.7 200 21 349.6 349.7 296.6 350.0 0.09 18 164 12198 -52.5 -56.4 63 3.9 -52.7 203 27 370.0 370.1 300.7 370.6 0.11 19 150 12780 -50.5 -54.4 63 3.9 -50.7 205 29 383.1 383.1 302.8 383.8 0.16 20 102 15319 -46.7 -50.6 64 3.9 -47.1 215 39 435.0 435.1 309.6 436.9 0.36 21 100 15450 -46.5 -50.4 64 3.9 -47.0 215 40 437.9 438.0 309.8 439.9 0.38 22 75 17360 -47.7 -51.8 63 4.1 -48.3 215 48 472.9 473.0 313.1 475.3 0.43 23 70 17820 -44.7 -48.9 63 4.2 -45.4 215 50 488.8 488.9 314.4 492.5 0.64 24 69 17916 -44.5 -48.7 63 4.2 -45.3 216 50 491.2 491.4 314.6 495.1 0.66 25 50 20050 -47.3 -51.4 63 4.1 -48.1 230 50 532.0 532.2 317.3 536.3 0.67 26 48 20320 -48.9 -53.0 62 4.1 -49.6 228 51 534.4 534.6 317.4 538.2 0.58 27 30 23460 -43.1 -47.3 63 4.2 -44.6 205 64 627.1 627.8 322.3 640.5 1.79 28 24 24970 -41.7 -45.8 64 4.1 -43.6 210 77 672.6 673.7 324.2 693.8 2.64 29 20 26210 -40.5 -44.6 65 4.1 -42.6 215 71 712.2 713.8 325.7 743.0 3.63 30 19 26560 -40.3 -44.5 64 4.2 -42.6 723.4 725.1 326.1 756.6 3.86 31 14 28630 -43.1 -47.4 63 4.3 -45.4 779.9 781.7 327.6 815.7 3.81 TRP 349 7356 -58.5 -62.1 63 3.6 -58.5 185 52 290.1 290.1 276.7 290.1 0.03 WND 24 24970 -41.7 -45.8 64 4.1 -43.6 210 77 672.6 673.7 324.2 693.8 2.64 Sounding variables and indices 1000-500 mb thick: 4848.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.11 inches Sfc-500 mean rel hum: 71.85 % Est. max temperature: -9.58 C = 14.76 F Sfc-Lift cond lev (LCL): 875.72 mb = 1086.02 m = 3563.00 ft T: -34.92 C 700-500 lapse rate: 7.50 C/km ThetaE index: 0.30 C Layer 700.0- 542.0 mb Conv cond level (CCL): 920.00 mb = 741.93 m = 2434.13 ft Mean mixing ratio: 0.22 g/kg Conv temperature: -34.82 C = -30.67 F Cap Strength: 20.68 C Lifted Index: 23.54 C Risk: None Lifted Index @300 mb: 40.17 C Lifted Index @700 mb: 20.43 C Showalter Index: 19.59 C Risk: None Total Totals Index: 24.70 C Risk: None Vertical Totals Index: 14.00 C Cross Totals Index: 10.70 C K Index: -23.40 Risk: None Sweat Index: 62.00 Risk: None Energy Index: 5.24 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 86.70 J/kg Max Up Vert Vel: 13.17 m/s Conv Inhibition (B-): 81797.23 J/kg Cap Strength: 23.22 C Lift Cond Lev (LCL): 844.61 mb = 1339.86 m = 4395.81 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 214 at 24 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 ---------------------------------------------------------- 0 920 742 200 1 0.3 0.9 | 35 24 -13.4 -19.3 1 850 1294 150 13 -6.5 11.3 | 66 22 -20.3 -9.0 2 700 2700 185 33 2.9 32.9 | 139 17 -10.9 12.7 3 500 5020 185 36 3.1 35.9 | 146 19 -10.6 15.6 4 400 6490 190 52 9.0 51.2 | 171 31 -4.8 31.0 5 349 7356 185 52 4.5 51.8 | 164 33 -9.2 31.6 6 300 8310 190 35 6.1 34.5 | 152 16 -7.7 14.2 7 250 9480 190 25 4.3 24.6 | 115 10 -9.4 4.4 8 200 10910 200 21 7.2 19.7 | 86 7 -6.6 -0.5 9 150 12780 205 29 12.3 26.3 | 166 6 -1.5 6.1 10 100 15450 215 40 22.9 32.8 | 216 16 9.2 12.5 11 70 17820 215 50 28.7 41.0 | 216 26 14.9 20.7 12 50 20050 230 50 38.3 32.1 | 244 27 24.5 11.9 13 30 23460 205 64 27.0 58.0 | 199 40 13.3 37.8 14 24 24970 210 77 38.5 66.7 | 208 53 24.7 46.5 15 20 26210 215 71 40.7 58.2 | 215 47 26.9 37.9 Wind Parameters Mean winds (0-6000m): 184.3 at 32.6 knts Storm direction: 214.3 at 24.5 knts Shear (0-3000m) pos: 4.0 neg: 2.1 tot: 6.1 10-3/s Storm rel Dir Shear (0-3000m): 107.5 deg Storm rel helicity (0-3000m) pos: 184.0 neg: 0.0 tot: 184.0 m^2/s^2 ave: 61.3 10^-3 m/s^2 rel: 0.91 Storm rel vorticity (0-3000m) horiz: 6.7 stream: 6.2 10^-3/s Energy-Hel index: 0.10 Bulk Rich Number: 0.88 Bulk Shear: 98.78 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 ------------------------------------------------------------------------------- 500 153 6 49 22| 0.0 11.5 11.5| 54.3 0.0 54.3 108.6 0.83| 12.5 10.4 1000 155 11 61 21| 4.0 5.8 9.7| 98.4 0.0 98.4 98.4 0.88| 10.6 9.2 1500 164 15 72 19| 5.4 3.8 9.2|140.3 0.0 140.3 93.5 0.90| 10.0 9.0 2000 173 19 84 16| 6.1 2.9 8.9|179.9 0.0 179.9 89.9 0.92| 9.8 9.0 2500 177 21 94 15| 4.9 2.4 7.3|181.9 0.0 181.9 72.8 0.92| 8.0 7.3 3000 179 23 103 15| 4.0 2.1 6.1|184.0 0.0 184.0 61.3 0.91| 6.7 6.2 4000 181 27 116 15| 3.0 1.7 4.8|188.1 0.0 188.1 47.0 0.91| 5.2 4.7 5000 182 29 125 15| 3.3 1.4 4.7|221.5 0.0 221.5 44.3 0.87| 5.0 4.4 6000 184 33 137 17| 3.2 1.4 4.6|256.7 -8.3 248.4 41.4 0.80| 5.0 4.0 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20260108.12.gif