UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2026010600.upa.cvt Date: 0000Z 6 JAN 26 Searching for U4688... Searching the city database file for: U4688 ... Date:0000Z 6 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 154 1 925 686 220 1 SFC 918 738 -42.7 -45.6 73 2.9 -42.8 220 1 236.2 236.2 236.0 236.4 0.07 3 850 1269 -34.3 -38.9 63 4.6 -34.5 95 7 250.2 250.2 249.2 250.7 0.15 4 819 1532 -28.9 -33.6 64 4.7 -29.3 103 8 258.6 258.6 256.6 259.4 0.27 5 768 1996 -23.5 -28.2 65 4.7 -24.1 116 10 269.2 269.3 265.1 270.7 0.49 6 721 2458 -23.7 -28.0 68 4.3 -24.2 129 12 273.9 274.0 268.3 275.5 0.53 7 700 2673 -25.1 -29.1 69 4.0 -25.6 135 13 274.7 274.8 268.8 276.2 0.49 8 625 3486 -28.3 -32.2 69 3.9 -28.7 79 10 280.1 280.1 271.9 281.4 0.41 9 500 5040 -39.7 -43.5 67 3.8 -39.9 330 5 284.6 284.7 274.1 285.2 0.16 10 400 6540 -48.7 -52.6 64 3.9 -48.8 340 31 291.7 291.7 277.6 292.0 0.07 11 336 7668 -57.3 -61.1 62 3.8 -57.3 335 31 294.9 294.9 279.1 295.0 0.03 12 300 8390 -55.7 -59.5 62 3.8 -55.8 355 11 306.8 306.8 284.2 307.0 0.04 13 250 9550 -55.1 -59.1 61 4.0 -55.2 165 7 324.1 324.2 290.1 324.4 0.05 14 200 10980 -53.9 -58.1 60 4.2 -54.0 165 7 347.4 347.4 296.1 347.7 0.07 15 150 12850 -50.1 -54.3 61 4.2 -50.3 180 7 383.7 383.8 302.9 384.5 0.16 16 100 15510 -47.5 -51.9 60 4.4 -48.0 260 13 435.9 436.0 309.6 437.6 0.32 17 70 17880 -45.9 -50.0 63 4.1 -46.6 265 25 486.2 486.4 314.2 489.5 0.56 18 63 18583 -44.9 -49.2 62 4.3 -45.7 268 29 503.3 503.5 315.5 507.4 0.69 19 58 19132 -47.3 -51.5 62 4.2 -48.0 271 32 509.9 510.1 315.9 513.4 0.57 20 50 20120 -44.5 -48.8 62 4.3 -45.5 275 38 538.6 538.9 317.8 544.4 0.91 21 43 21138 -40.3 -44.5 64 4.2 -41.8 278 43 572.7 573.3 319.9 584.1 1.70 22 36 22334 -45.9 -49.8 65 3.9 -47.0 281 50 588.0 588.4 320.4 595.9 1.12 23 30 23540 -48.3 -52.4 62 4.1 -49.4 285 56 613.0 613.3 321.5 620.4 1.00 24 20 26190 -51.5 -55.3 64 3.8 -52.5 300 71 678.5 679.0 324.0 687.3 1.06 25 12 29484 -54.5 -58.6 60 4.1 -55.8 774.6 775.2 326.9 785.9 1.17 26 11 30037 -57.7 -61.6 61 3.9 -58.7 782.5 783.0 327.0 791.0 0.87 TRP 336 7668 -57.3 -61.1 62 3.8 -57.3 335 31 294.9 294.9 279.1 295.0 0.03 WND Sounding variables and indices 1000-500 mb thick: 4886.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.10 inches Sfc-500 mean rel hum: 67.47 % Est. max temperature: -10.43 C = 13.22 F Sfc-Lift cond lev (LCL): 872.12 mb = 1091.60 m = 3581.33 ft T: -37.10 C 700-500 lapse rate: 6.17 C/km ThetaE index: 0.00 C Layer 918.0-11024811681644544.0 mb Conv cond level (CCL): 918.00 mb = 737.53 m = 2419.70 ft Mean mixing ratio: 0.15 g/kg Conv temperature: -38.64 C = -37.56 F Cap Strength: 28.63 C Lifted Index: 30.59 C Risk: None Lifted Index @300 mb: 42.13 C Lifted Index @700 mb: 24.80 C Showalter Index: 27.90 C Risk: None Total Totals Index: 6.20 C Risk: None Vertical Totals Index: 5.40 C Cross Totals Index: 0.80 C K Index: -37.50 Risk: None Sweat Index: 19.00 Risk: None Energy Index: 7.51 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 82.63 J/kg Max Up Vert Vel: 12.86 m/s Conv Inhibition (B-): 88363.81 J/kg Cap Strength: 30.55 C Lift Cond Lev (LCL): 821.27 mb = 1512.12 m = 4960.98 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 53 at 9 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 ---------------------------------------------------------- 0 918 738 220 1 0.6 0.8 | 232 10 7.8 6.1 1 850 1269 95 7 -7.0 0.6 | 181 6 0.1 5.9 2 700 2673 135 13 -9.2 9.2 | 172 15 -2.1 14.5 3 500 5040 330 5 2.5 -4.3 | 264 10 9.6 1.0 4 400 6540 340 31 10.6 -29.1 | 323 30 17.7 -23.8 5 336 7668 335 31 13.1 -28.1 | 318 30 20.2 -22.8 6 300 8390 355 11 1.0 -11.0 | 305 10 8.1 -5.6 7 250 9550 165 7 -1.8 6.8 | 204 13 5.3 12.1 8 200 10980 165 7 -1.8 6.8 | 204 13 5.3 12.1 9 150 12850 180 7 0.0 7.0 | 210 14 7.1 12.3 10 100 15510 260 13 12.8 2.3 | 249 21 19.9 7.6 11 70 17880 265 25 24.9 2.2 | 257 33 32.0 7.5 12 50 20120 275 38 37.9 -3.3 | 267 45 45.0 2.0 13 30 23540 285 56 54.1 -14.5 | 279 62 61.2 -9.2 14 20 26190 300 71 61.5 -35.5 | 294 75 68.6 -30.2 Wind Parameters Mean winds (0-6000m): 23.1 at 11.8 knts Storm direction: 53.1 at 8.9 knts Shear (0-3000m) pos: 1.3 neg: 2.3 tot: 3.6 10-3/s Storm rel Dir Shear (0-3000m): -107.9 deg Storm rel helicity (0-3000m) pos: 2.5 neg: -39.7 tot: -37.2 m^2/s^2 ave: -12.4 10^-3 m/s^2 rel: -0.45 Storm rel vorticity (0-3000m) horiz: 5.8 stream: -2.6 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 4.51 Bulk Shear: 18.34 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 ------------------------------------------------------------------------------- 500 103 4 209 7| 0.0 7.4 7.4| 0.0 -20.2 -20.2 -40.4 -0.80| 10.1 -8.1 1000 102 6 193 7| 1.3 3.7 5.0| 0.0 -23.4 -23.4 -23.4 -0.74| 6.7 -5.0 1500 110 7 183 8| 1.9 2.5 4.3| 0.2 -24.1 -23.9 -15.9 -0.60| 5.6 -3.4 2000 120 8 179 9| 2.0 1.8 3.8| 2.5 -26.2 -23.8 -11.9 -0.49| 5.2 -2.5 2500 118 9 175 10| 1.6 2.2 3.8| 2.5 -37.4 -35.0 -14.0 -0.50| 5.7 -2.8 3000 114 9 171 9| 1.3 2.3 3.6| 2.5 -39.7 -37.2 -12.4 -0.45| 5.8 -2.6 4000 116 9 174 9| 1.0 1.8 2.8| 2.5 -43.6 -41.1 -10.3 -0.45| 5.7 -2.6 5000 109 9 170 8| 0.1 1.7 1.8| 33.0 -47.4 -14.4 -2.9 -0.22| 6.1 -1.3 6000 23 12 336 6| 1.3 1.4 2.7| 77.8 -50.8 27.1 4.5 -0.08| 6.3 -0.5 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20260106.00.gif