UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042200.upa.cvt Date: 0000Z 22 APR 25 Searching for U4688... Searching the city database file for: U4688 ... Date:0000Z 22 APR 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 143 SFC 929 741 1.2 -6.8 55 8.0 -1.7 10 1 280.2 280.6 275.2 287.2 2.47 2 925 776 1.4 -11.6 37 13.0 -2.9 65 3 280.7 281.0 274.3 285.7 1.70 3 902 977 2.0 -12.0 35 14.0 -2.6 110 7 283.4 283.7 275.8 288.3 1.69 4 869 1274 -0.3 -16.3 29 16.0 -5.0 176 12 284.0 284.2 275.5 287.7 1.23 5 850 1450 0.6 -16.4 27 17.0 -4.5 215 15 286.8 287.0 276.9 290.5 1.25 6 845 1497 0.6 -17.4 25 18.0 -4.7 215 15 287.3 287.5 277.0 290.8 1.15 7 726 2708 -3.9 -27.9 14 24.0 -9.3 211 15 295.1 295.2 279.9 296.8 0.53 8 712 2861 -6.5 -32.5 11 26.0 -11.5 210 15 293.9 293.9 279.1 295.0 0.35 9 708 2905 -6.9 -32.9 11 26.0 -11.8 210 15 293.9 293.9 279.1 295.0 0.34 10 700 2994 -6.7 -31.7 12 25.0 -11.6 210 15 295.1 295.1 279.7 296.3 0.38 11 500 5520 -25.3 -47.3 11 22.0 -27.2 170 13 302.2 302.2 282.4 302.6 0.11 12 452 6245 -30.3 -48.3 16 18.0 -31.6 170 13 304.8 304.8 283.5 305.2 0.11 13 400 7100 -37.9 -49.9 27 12.0 -38.5 170 13 305.7 305.8 283.8 306.1 0.10 14 338 8240 -48.1 -58.1 31 10.0 -48.3 161 15 306.9 306.9 284.2 307.1 0.04 15 330 8399 -48.9 -57.9 34 9.0 -49.1 160 16 307.9 307.9 284.6 308.1 0.05 16 300 9020 -53.9 -62.9 32 9.0 -54.1 155 17 309.4 309.4 285.1 309.5 0.03 17 254 10062 -61.7 -69.7 34 8.0 -61.8 180 13 312.9 312.9 286.4 313.0 0.01 18 252 10111 -61.7 -69.7 34 8.0 -61.8 182 12 313.6 313.6 286.6 313.7 0.01 19 250 10160 -61.5 -69.5 34 8.0 -61.6 185 11 314.6 314.6 287.0 314.7 0.01 20 235 10546 -61.3 -69.3 34 8.0 -61.4 177 12 320.6 320.6 288.9 320.6 0.01 21 215 11107 -55.7 -64.7 32 9.0 -55.9 165 12 337.5 337.5 293.7 337.6 0.03 22 200 11570 -55.5 -64.5 32 9.0 -55.7 155 13 344.9 344.9 295.5 345.0 0.03 23 154 13249 -50.7 -62.7 23 12.0 -51.1 182 15 379.8 379.9 302.3 380.1 0.05 24 150 13420 -51.5 -64.5 20 13.0 -52.0 185 15 381.3 381.3 302.5 381.5 0.04 25 113 15244 -54.5 -70.5 12 16.0 -54.9 154 11 407.9 407.9 306.3 408.0 0.03 26 100 16030 -52.3 -68.3 13 16.0 -52.9 140 9 426.7 426.7 308.5 426.9 0.04 27 71 18248 -54.1 -72.1 9 18.0 -54.8 183 5 466.7 466.8 312.4 466.9 0.03 28 70 18340 -53.7 -71.7 9 18.0 -54.5 185 5 469.5 469.5 312.6 469.7 0.03 29 53 20133 -51.3 -69.3 10 18.0 -52.6 173 8 513.9 514.0 315.9 514.4 0.06 30 50 20510 -51.7 -69.7 10 18.0 -53.0 170 9 521.6 521.7 316.4 522.1 0.06 31 46 21052 -52.1 -70.1 10 18.0 -53.4 159 8 533.3 533.3 317.2 533.7 0.07 32 40 21954 -54.1 -73.1 8 19.0 -55.4 142 6 550.0 550.0 318.1 550.3 0.05 33 30 23810 -52.5 -71.5 8 19.0 -54.4 105 3 601.5 601.5 320.7 602.1 0.08 34 28 24254 -51.5 -70.5 9 19.0 -53.7 101 4 616.3 616.3 321.3 617.1 0.10 35 27 24488 -51.9 -70.9 8 19.0 -54.1 99 5 621.6 621.6 321.6 622.4 0.10 36 23 25521 -51.9 -71.9 7 20.0 -54.4 89 7 650.8 650.8 322.7 651.6 0.10 37 20 26420 -53.1 -73.1 7 20.0 -55.6 80 9 673.6 673.7 323.6 674.4 0.10 38 18 27100 -52.9 -72.9 7 20.0 -55.6 694.9 694.9 324.3 695.8 0.11 39 17 27469 -52.7 -72.7 7 20.0 -55.6 707.0 707.0 324.7 708.0 0.12 40 12 29741 -48.3 -68.3 8 20.0 -53.4 796.6 796.8 327.3 799.8 0.32 41 11 30314 -49.1 -69.1 8 20.0 -54.2 813.8 813.9 327.7 817.0 0.32 42 10 30940 -48.5 -72.5 5 24.0 -54.4 838.5 838.6 328.2 840.7 0.21 43 9.7 31141 -47.7 -68.7 7 21.0 -53.8 848.9 849.1 328.4 852.9 0.38 TRP 254 10062 -61.7 -69.7 34 8.0 -61.8 180 13 312.9 312.9 286.4 313.0 0.01 WND Sounding variables and indices 1000-500 mb thick: 5377.00 m Freezing level: 873.30 mb = 1235.51 m = 4053.45 ft Freezing level: 862.67 mb = 1332.83 m = 4372.76 ft Freezing level: 829.13 mb = 1658.83 m = 5442.29 ft Wetbulb zero: Below ground Precipitable water: 0.13 inches Sfc-500 mean rel hum: 16.42 % Est. max temperature: 12.20 C = 53.97 F Sfc-Lift cond lev (LCL): 819.91 mb = 1737.84 m = 5701.50 ft T: -0.29 C 700-500 lapse rate: 7.36 C/km ThetaE index: 1.79 C Layer 712.0- 700.0 mb Conv cond level (CCL): 550.00 mb = 4804.48 m = 15762.53 ft Mean mixing ratio: 1.42 g/kg Conv temperature: 20.91 C = 69.64 F Cap Strength: 9.89 C Lifted Index: 11.95 C Risk: None Lifted Index @300 mb: 14.75 C Lifted Index @700 mb: 9.63 C Showalter Index: 10.54 C Risk: None Total Totals Index: 34.80 C Risk: None Vertical Totals Index: 25.90 C Cross Totals Index: 8.90 C K Index: -15.50 Risk: None Sweat Index: 43.00 Risk: None Energy Index: 2.60 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 28.29 J/kg Max Up Vert Vel: 7.52 m/s Conv Inhibition (B-): 73712.59 J/kg Cap Strength: 11.95 C Lift Cond Lev (LCL): 690.07 mb = 3101.23 m = 10174.51 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 224 at 10 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 ---------------------------------------------------------- 0 929 741 10 1 -0.2 -1.0 | 41 11 -7.1 -8.3 1 925 776 65 3 -2.7 -1.3 | 49 13 -9.7 -8.5 2 850 1450 215 15 8.6 12.3 | 198 5 1.6 5.0 3 700 2994 210 15 7.5 13.0 | 185 6 0.5 5.7 4 500 5520 170 13 -2.3 12.8 | 121 11 -9.2 5.5 5 400 7100 170 13 -2.3 12.8 | 121 11 -9.2 5.5 6 300 9020 155 17 -7.2 15.4 | 120 16 -14.2 8.1 7 254 10062 180 13 0.0 13.0 | 129 9 -7.0 5.7 8 250 10160 185 11 1.0 11.0 | 122 7 -6.0 3.7 9 200 11570 155 13 -5.5 11.8 | 110 13 -12.5 4.5 10 150 13420 185 15 1.3 14.9 | 144 10 -5.7 7.7 11 100 16030 140 9 -5.8 6.9 | 88 13 -12.8 -0.4 12 70 18340 185 5 0.4 5.0 | 71 7 -6.5 -2.3 13 50 20510 170 9 -1.6 8.9 | 101 9 -8.5 1.6 14 30 23810 105 3 -2.9 0.8 | 57 12 -9.9 -6.5 15 20 26420 80 9 -8.9 -1.6 | 61 18 -15.8 -8.8 Wind Parameters Mean winds (0-6000m): 193.8 at 13.4 knts Storm direction: 223.8 at 10.1 knts Shear (0-3000m) pos: 2.7 neg: 0.7 tot: 3.4 10-3/s Storm rel Dir Shear (0-3000m): 118.0 deg Storm rel helicity (0-3000m) pos: 69.9 neg: -6.4 tot: 63.5 m^2/s^2 ave: 21.2 10^-3 m/s^2 rel: 0.66 Storm rel vorticity (0-3000m) horiz: 5.8 stream: 3.8 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 2.34 Bulk Shear: 12.08 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 ------------------------------------------------------------------------------- 500 152 7 83 10| 12.6 0.0 12.6| 52.4 0.0 52.4 104.8 0.88| 18.4 16.2 1000 211 10 136 2| 8.2 0.0 8.2| 69.9 -0.2 69.7 69.7 0.88| 15.2 13.3 1500 212 12 168 3| 5.5 0.1 5.6| 69.9 -0.8 69.1 46.1 0.85| 10.3 8.8 2000 212 13 176 4| 4.1 0.2 4.3| 69.9 -1.4 68.5 34.3 0.83| 7.8 6.5 2500 211 13 178 4| 3.3 0.4 3.7| 69.9 -3.2 66.7 26.7 0.76| 6.5 4.9 3000 210 13 176 4| 2.7 0.7 3.4| 69.9 -6.4 63.5 21.2 0.66| 5.8 3.8 4000 205 14 166 5| 2.0 1.0 3.1| 69.9 -13.3 56.6 14.1 0.50| 4.8 2.4 5000 199 14 155 6| 1.6 1.1 2.7| 69.9 -19.5 50.4 10.1 0.40| 4.2 1.7 6000 194 13 147 7| 1.4 0.9 2.3| 69.9 -19.5 50.4 8.4 0.40| 3.5 1.4 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20250422.00.gif