UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120100.upa.cvt Date: 0000Z 1 DEC 25 Searching for U4688... Searching the city database file for: U4688 ... Date:0000Z 1 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 270 SFC 937 737 -30.5 -33.2 77 2.7 -30.7 20 1 247.2 247.2 246.7 247.9 0.25 2 925 829 -31.3 -34.8 71 3.5 -31.5 5 3 247.3 247.3 246.7 247.9 0.22 3 920 867 -31.1 -34.6 71 3.5 -31.3 10 3 247.9 247.9 247.3 248.5 0.22 4 850 1440 -21.1 -24.3 75 3.2 -21.5 90 9 264.0 264.1 261.6 265.8 0.63 5 803 1864 -14.3 -17.2 79 2.9 -14.9 100 9 275.6 275.8 270.7 279.2 1.23 6 700 2886 -22.1 -24.8 79 2.7 -22.5 125 9 278.0 278.1 271.2 280.2 0.73 7 663 3284 -24.5 -27.5 76 3.0 -24.9 137 9 279.7 279.8 272.0 281.5 0.60 8 550 4631 -30.9 -33.9 75 3.0 -31.2 179 8 287.4 287.5 276.0 288.7 0.40 9 500 5300 -36.7 -39.6 74 2.9 -36.9 200 7 288.3 288.3 276.2 289.1 0.25 10 400 6800 -47.9 -51.0 70 3.1 -48.0 185 15 292.7 292.8 278.2 293.0 0.09 11 389 6983 -49.3 -52.5 69 3.2 -49.4 185 17 293.2 293.3 278.4 293.5 0.08 12 321 8210 -60.3 -63.6 65 3.3 -60.3 185 27 294.6 294.6 278.9 294.7 0.02 13 300 8630 -61.5 -64.6 66 3.1 -61.5 185 31 298.6 298.7 280.8 298.7 0.02 14 250 9760 -63.9 -67.4 62 3.5 -63.9 195 40 311.1 311.1 285.7 311.1 0.02 15 242 9958 -64.5 -68.0 62 3.5 -64.6 200 38 313.1 313.1 286.4 313.1 0.02 16 219 10566 -64.7 -68.2 62 3.5 -64.7 195 35 321.8 321.8 289.3 321.9 0.02 17 200 11120 -63.7 -67.3 61 3.6 -63.7 190 33 331.9 331.9 292.3 332.0 0.02 18 172 12060 -59.3 -63.0 62 3.7 -59.4 190 34 353.8 353.8 297.5 354.0 0.05 19 150 12920 -59.9 -63.6 62 3.7 -60.0 190 35 366.9 366.9 300.1 367.1 0.05 20 101 15397 -57.9 -61.7 62 3.8 -58.0 190 31 414.7 414.7 307.2 415.2 0.09 21 100 15460 -58.1 -61.9 62 3.8 -58.2 190 31 415.5 415.5 307.2 415.9 0.09 22 81 16794 -58.5 -62.4 61 3.9 -58.7 187 39 440.5 440.5 310.0 441.0 0.11 23 70 17720 -56.7 -60.3 64 3.6 -56.9 185 44 463.1 463.1 312.1 464.0 0.16 24 65 18194 -54.3 -58.2 62 3.9 -54.6 183 43 478.2 478.3 313.4 479.6 0.23 25 62 18495 -57.1 -60.8 63 3.7 -57.3 181 43 478.6 478.6 313.4 479.6 0.17 26 50 19860 -56.9 -60.6 63 3.7 -57.2 175 40 509.4 509.5 315.7 510.8 0.22 27 44 20668 -57.5 -61.3 62 3.8 -57.8 175 47 526.9 527.0 316.8 528.4 0.23 28 41 21115 -56.1 -59.7 64 3.6 -56.5 175 51 541.1 541.2 317.7 543.1 0.30 29 40 21273 -52.3 -56.2 63 3.9 -52.9 175 53 554.5 554.7 318.5 557.7 0.47 30 30 23120 -55.5 -59.2 63 3.7 -56.1 175 69 593.3 593.5 320.5 596.5 0.44 31 29 23336 -55.7 -59.4 63 3.7 -56.2 175 70 598.6 598.7 320.7 601.8 0.44 32 27 23799 -49.3 -53.4 62 4.1 -50.4 176 73 628.9 629.3 322.2 636.4 0.99 33 25 24302 -51.7 -55.7 62 4.0 -52.7 178 76 636.0 636.3 322.4 642.3 0.81 34 23 24847 -48.9 -53.3 60 4.4 -50.2 179 79 659.6 660.1 323.4 669.0 1.17 35 21 25451 -44.3 -49.8 55 5.4 -46.6 180 83 690.7 691.6 324.7 706.8 1.93 36 20 25780 -41.9 -47.9 52 6.0 -44.7 180 83 707.9 709.0 325.3 729.3 2.52 37 19 26128 -41.5 -47.5 52 6.0 -44.4 719.6 720.8 325.7 743.5 2.77 38 17 26884 -40.3 -48.3 42 8.0 -44.3 746.7 748.0 326.5 772.2 2.83 39 12 29271 -38.1 -66.1 4 28.0 -48.0 832.7 833.0 328.1 837.3 0.44 TRP 242 9958 -64.5 -68.0 62 3.5 -64.6 200 38 313.1 313.1 286.4 313.1 0.02 WND 21 25451 -44.3 -49.8 55 5.4 -46.6 180 83 690.7 691.6 324.7 706.8 1.93 Sounding variables and indices 1000-500 mb thick: 5030.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.14 inches Sfc-500 mean rel hum: 76.00 % Est. max temperature: -2.26 C = 27.93 F Sfc-Lift cond lev (LCL): 895.08 mb = 1066.09 m = 3497.61 ft T: -27.63 C 700-500 lapse rate: 6.05 C/km Conv cond level (CCL): 937.00 mb = 736.73 m = 2417.07 ft Mean mixing ratio: 0.43 g/kg Conv temperature: -27.42 C = -17.35 F Cap Strength: 25.68 C Lifted Index: 25.62 C Risk: None Lifted Index @300 mb: 29.48 C Lifted Index @700 mb: 19.31 C Showalter Index: 18.53 C Risk: None Total Totals Index: 28.00 C Risk: None Vertical Totals Index: 15.60 C Cross Totals Index: 12.40 C K Index: -11.40 Risk: None Sweat Index: 25.00 Risk: None Energy Index: 5.03 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 58.89 J/kg Max Up Vert Vel: 10.85 m/s Conv Inhibition (B-): 70476.36 J/kg Cap Strength: 25.68 C Lift Cond Lev (LCL): 856.11 mb = 1388.18 m = 4554.35 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 182 at 6 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 ---------------------------------------------------------- 0 937 737 20 1 -0.3 -0.9 | 5 7 -0.6 -7.4 1 925 829 5 3 -0.3 -3.0 | 3 9 -0.5 -9.5 2 850 1440 90 9 -9.0 0.0 | 55 11 -9.2 -6.5 3 700 2886 125 9 -7.4 5.2 | 80 8 -7.6 -1.3 4 500 5300 200 7 2.4 6.6 | 268 2 2.1 0.1 5 400 6800 185 15 1.3 14.9 | 187 9 1.1 8.5 6 300 8630 185 31 2.7 30.9 | 186 25 2.5 24.4 7 250 9760 195 40 10.4 38.6 | 197 34 10.1 32.2 8 242 9958 200 38 13.0 35.7 | 204 32 12.8 29.2 9 200 11120 190 33 5.7 32.5 | 192 27 5.5 26.0 10 150 12920 190 35 6.1 34.5 | 192 29 5.8 28.0 11 100 15460 190 31 5.4 30.5 | 192 25 5.1 24.0 12 70 17720 185 44 3.8 43.8 | 185 38 3.6 37.3 13 50 19860 175 40 -3.5 39.8 | 174 34 -3.7 33.4 14 30 23120 175 69 -6.0 68.7 | 174 63 -6.3 62.3 15 21 25451 180 83 0.0 83.0 | 180 77 -0.2 76.5 16 20 25780 180 83 0.0 83.0 | 180 77 -0.2 76.5 Wind Parameters Mean winds (0-6000m): 152.2 at 8.7 knts Storm direction: 182.2 at 6.5 knts Shear (0-3000m) pos: 1.5 neg: 0.0 tot: 1.5 10-3/s Storm rel Dir Shear (0-3000m): 96.2 deg Storm rel helicity (0-3000m) pos: 44.1 neg: -0.4 tot: 43.8 m^2/s^2 ave: 14.6 10^-3 m/s^2 rel: 0.73 Storm rel vorticity (0-3000m) horiz: 3.8 stream: 2.8 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 3.69 Bulk Shear: 15.97 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 42 4 18 10| 6.5 0.0 6.5| 16.7 -0.4 16.4 32.7 0.66| 8.7 5.7 1000 80 6 41 10| 4.5 0.0 4.5| 32.7 -0.4 32.4 32.4 0.78| 7.2 5.6 1500 90 7 49 10| 3.1 0.0 3.1| 36.6 -0.4 36.3 24.2 0.78| 5.4 4.2 2000 98 8 55 10| 2.4 0.0 2.4| 39.9 -0.4 39.5 19.7 0.77| 4.6 3.5 2500 105 8 61 9| 1.9 0.0 1.9| 42.5 -0.4 42.1 16.8 0.75| 4.1 3.1 3000 111 8 65 9| 1.5 0.0 1.5| 44.1 -0.4 43.8 14.6 0.73| 3.8 2.8 4000 124 8 74 7| 1.1 0.0 1.1| 45.7 -0.4 45.3 11.3 0.71| 3.4 2.4 5000 136 8 83 6| 0.8 0.2 1.1| 46.2 -1.7 44.6 8.9 0.60| 3.2 1.9 6000 152 9 105 4| 0.7 0.7 1.4| 46.2 -6.2 40.0 6.7 0.42| 3.2 1.3 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20251201.00.gif