UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120700.upa.cvt Date: 0000Z 7 DEC 25 Searching for U4688... Searching the city database file for: U4688 ... Date:0000Z 7 DEC 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 73 1 925 640 SFC 912 743 -27.1 -29.4 81 2.3 -27.3 250 1 252.6 252.7 251.8 253.6 0.37 3 850 1263 -16.9 -19.7 79 2.8 -17.4 175 15 268.4 268.6 265.4 271.1 0.94 4 842 1334 -15.9 -18.9 78 3.0 -16.5 175 15 270.2 270.4 266.8 273.1 1.02 5 792 1792 -18.5 -21.3 79 2.8 -19.0 179 14 272.2 272.4 267.8 274.8 0.88 6 700 2696 -26.7 -29.5 77 2.8 -27.0 185 13 272.9 273.0 267.6 274.3 0.47 7 654 3183 -30.7 -33.6 76 2.9 -31.0 184 15 273.8 273.8 267.9 274.8 0.34 8 593 3877 -31.3 -34.3 75 3.0 -31.6 183 18 280.8 280.9 272.3 281.9 0.35 9 500 5070 -37.5 -40.4 74 2.9 -37.7 180 23 287.3 287.4 275.6 288.1 0.23 10 461 5629 -39.1 -42.3 72 3.2 -39.3 178 23 292.1 292.1 278.0 292.7 0.20 11 421 6247 -42.5 -45.5 72 3.0 -42.6 176 23 295.4 295.4 279.5 295.9 0.16 12 420 6263 -44.5 -47.7 70 3.2 -44.6 176 23 293.0 293.1 278.4 293.5 0.12 13 400 6590 -44.9 -48.1 70 3.2 -45.0 175 23 296.6 296.7 280.0 297.1 0.12 14 378 6965 -46.7 -49.7 71 3.0 -46.8 175 22 299.1 299.1 281.1 299.5 0.11 15 318 8082 -56.3 -59.4 68 3.1 -56.3 175 19 300.9 300.9 281.8 301.1 0.04 16 300 8450 -56.7 -59.7 69 3.0 -56.8 175 19 305.4 305.4 283.6 305.6 0.04 17 250 9610 -57.5 -60.6 68 3.1 -57.6 180 15 320.6 320.6 289.0 320.8 0.04 18 227 10219 -58.1 -61.3 67 3.2 -58.2 193 18 328.6 328.6 291.4 328.8 0.04 19 226 10247 -53.7 -57.1 66 3.4 -53.8 194 18 335.8 335.8 293.3 336.1 0.08 20 216 10540 -51.1 -54.4 68 3.3 -51.2 200 19 344.2 344.2 295.4 344.6 0.11 21 200 11040 -52.1 -55.3 68 3.2 -52.2 210 21 350.3 350.3 296.8 350.7 0.11 22 154 12740 -50.1 -53.6 66 3.5 -50.3 380.9 380.9 302.5 381.6 0.17 TRP 318 8082 -56.3 -59.4 68 3.1 -56.3 175 19 300.9 300.9 281.8 301.1 0.04 WND Sounding variables and indices 1000-500 mb thick: 4997.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.11 inches Sfc-500 mean rel hum: 76.57 % Est. max temperature: -7.77 C = 18.01 F Sfc-Lift cond lev (LCL): 877.45 mb = 1028.01 m = 3372.71 ft T: -21.51 C 700-500 lapse rate: 4.55 C/km ThetaE index: 0.42 C Layer 700.0- 654.0 mb Conv cond level (CCL): 912.00 mb = 742.54 m = 2436.12 ft Mean mixing ratio: 0.78 g/kg Conv temperature: -21.05 C = -5.89 F Cap Strength: 12.57 C Lifted Index: 17.09 C Risk: None Lifted Index @300 mb: 27.48 C Lifted Index @700 mb: 6.56 C Showalter Index: 13.49 C Risk: None Total Totals Index: 38.40 C Risk: None Vertical Totals Index: 20.60 C Cross Totals Index: 17.80 C K Index: -1.90 Risk: None Sweat Index: 53.00 Risk: None Energy Index: 3.51 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 78.49 J/kg Max Up Vert Vel: 12.53 m/s Conv Inhibition (B-): 12740.23 J/kg Cap Strength: 16.85 C Lift Cond Lev (LCL): 833.97 mb = 1405.63 m = 4611.60 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 210 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 ---------------------------------------------------------- 0 912 743 250 1 0.9 0.3 | 27 13 -5.6 -11.2 1 850 1263 175 15 -1.3 14.9 | 113 9 -7.9 3.4 2 700 2696 185 13 1.1 13.0 | 105 6 -5.4 1.4 3 500 5070 180 23 0.0 23.0 | 150 13 -6.6 11.5 4 400 6590 175 23 -2.0 22.9 | 143 14 -8.6 11.4 5 318 8082 175 19 -1.7 18.9 | 132 11 -8.2 7.4 6 300 8450 175 19 -1.7 18.9 | 132 11 -8.2 7.4 7 250 9610 180 15 0.0 15.0 | 118 7 -6.6 3.5 8 200 11040 210 21 10.5 18.2 | 211 8 3.9 6.7 Wind Parameters Mean winds (0-6000m): 179.6 at 17.7 knts Storm direction: 209.6 at 13.3 knts Shear (0-3000m) pos: 0.4 neg: 3.2 tot: 3.5 10-3/s Storm rel Dir Shear (0-3000m): 109.1 deg Storm rel helicity (0-3000m) pos: 15.5 neg: -5.7 tot: 9.8 m^2/s^2 ave: 3.3 10^-3 m/s^2 rel: 0.36 Storm rel vorticity (0-3000m) horiz: 4.3 stream: 1.6 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 5.96 Bulk Shear: 13.16 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 ------------------------------------------------------------------------------- 500 179 8 60 8| 0.0 14.6 14.6| 9.1 -4.0 5.1 10.1 0.37| 17.7 6.6 1000 177 11 86 7| 0.1 7.3 7.4| 9.4 -4.4 4.9 4.9 0.34| 9.7 3.3 1500 178 12 94 7| 0.4 4.9 5.3| 9.4 -5.1 4.3 2.8 0.30| 6.8 2.1 2000 180 12 98 7| 0.5 3.6 4.2| 9.6 -5.7 3.9 1.9 0.28| 5.4 1.5 2500 181 13 101 7| 0.4 3.4 3.8| 12.5 -5.7 6.8 2.7 0.33| 4.7 1.6 3000 181 13 106 7| 0.4 3.2 3.5| 15.5 -5.7 9.8 3.3 0.36| 4.3 1.6 4000 181 15 119 7| 0.3 2.9 3.2| 20.9 -5.7 15.2 3.8 0.38| 3.8 1.4 5000 181 17 128 8| 0.2 2.5 2.7| 22.3 -8.3 14.1 2.8 0.34| 3.3 1.1 6000 180 18 133 9| 0.2 2.0 2.2| 22.3 -12.6 9.7 1.6 0.29| 2.8 0.8 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20251207.00.gif