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 U4641... Searching the city database file for: U4641 ... Date:0000Z 22 APR 25 Station: U4641 WMO ident: 24641 Latitude: 63.77 Longitude: 121.62 ------------------------------------------------------------------------------- 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 -17 SFC 984 111 -1.5 -5.8 72 4.3 -3.0 125 11 272.9 273.3 271.0 279.8 2.52 2 925 598 -6.5 -10.7 72 4.2 -7.7 145 21 272.7 273.0 269.8 277.8 1.82 3 924 606 -6.5 -10.7 72 4.2 -7.7 145 21 272.7 273.1 269.8 277.8 1.83 4 851 1246 -10.1 -13.5 76 3.4 -11.0 165 21 275.5 275.7 271.1 280.0 1.58 5 850 1255 -10.1 -13.5 76 3.4 -11.0 165 21 275.6 275.8 271.2 280.1 1.58 6 841 1337 -9.5 -13.1 75 3.6 -10.5 164 21 277.0 277.3 272.2 281.8 1.65 7 787 1846 -12.9 -17.9 66 5.0 -14.0 161 18 278.7 278.9 272.4 282.2 1.19 8 750 2214 -11.9 -16.9 66 5.0 -13.2 159 16 283.7 283.9 275.5 287.7 1.36 9 745 2265 -11.9 -16.9 66 5.0 -13.2 158 16 284.2 284.4 275.7 288.3 1.36 10 704 2697 -13.7 -20.7 55 7.0 -15.3 155 13 286.8 287.0 276.7 290.0 1.04 11 700 2740 -14.3 -22.3 51 8.0 -16.0 155 13 286.6 286.8 276.4 289.4 0.91 12 524 4868 -29.5 -50.5 11 21.0 -30.8 164 16 293.1 293.1 278.3 293.4 0.07 13 500 5200 -32.1 -53.1 11 21.0 -33.2 165 17 293.9 293.9 278.7 294.1 0.06 14 468 5662 -35.3 -55.3 11 20.0 -36.1 164 26 295.5 295.5 279.4 295.7 0.05 15 423 6359 -38.5 -58.5 10 20.0 -39.2 161 40 300.1 300.1 281.4 300.2 0.03 16 400 6740 -40.9 -60.9 10 20.0 -41.5 160 48 301.8 301.8 282.1 301.9 0.03 17 389 6929 -42.5 -62.5 9 20.0 -43.0 160 47 302.2 302.2 282.3 302.2 0.02 18 300 8670 -47.3 -68.3 7 21.0 -47.7 165 42 318.7 318.7 288.3 318.7 0.01 19 280 9126 -47.9 -68.9 7 21.0 -48.3 163 37 324.2 324.2 290.0 324.2 0.01 20 270 9368 -45.9 -67.9 7 22.0 -46.4 162 34 330.5 330.5 291.9 330.5 0.02 21 250 9880 -46.3 -68.3 6 22.0 -46.9 160 29 337.2 337.2 293.6 337.3 0.02 22 200 11360 -46.5 -70.5 5 24.0 -47.2 145 29 359.1 359.1 298.5 359.2 0.01 23 198 11427 -47.1 -71.1 5 24.0 -47.7 146 29 359.2 359.2 298.5 359.3 0.01 24 169 12481 -43.7 -69.7 4 26.0 -44.7 154 27 381.5 381.5 302.5 381.6 0.02 25 150 13280 -44.7 -70.7 4 26.0 -45.8 160 25 393.0 393.0 304.2 393.1 0.02 26 102 15857 -43.7 -69.7 4 26.0 -45.3 155 15 440.8 440.8 310.0 441.0 0.03 27 100 15990 -44.3 -70.3 4 26.0 -45.9 155 15 442.1 442.1 310.1 442.3 0.03 28 85 17067 -49.7 -74.7 4 25.0 -50.8 91 10 452.2 452.2 311.1 452.3 0.02 29 70 18340 -49.1 -74.1 4 25.0 -50.5 15 3 479.3 479.4 313.4 479.5 0.02 30 50 20540 -50.5 -74.5 4 24.0 -52.1 155 9 524.5 524.5 316.6 524.7 0.03 31 30 23870 -51.1 -75.1 4 24.0 -53.4 120 5 605.3 605.4 320.9 605.7 0.05 32 27 24554 -51.7 -75.7 4 24.0 -54.0 116 7 622.2 622.2 321.6 622.5 0.05 33 23 25602 -48.5 -73.5 4 25.0 -52.0 110 10 660.8 660.8 323.1 661.4 0.08 34 20 26520 -49.3 -74.3 4 25.0 -52.9 105 13 685.3 685.3 324.0 686.0 0.08 35 19 26856 -49.9 -74.9 4 25.0 -53.4 693.5 693.6 324.3 694.2 0.08 36 15 28413 -46.7 -72.7 4 26.0 -52.0 752.7 752.7 326.0 754.0 0.14 37 10 31081 -50.3 -75.3 4 25.0 -55.5 831.8 831.9 328.0 833.2 0.14 38 10 31081 -48.3 -73.3 4 25.0 -54.2 839.3 839.3 328.2 841.2 0.19 TRP 300 8670 -47.3 -68.3 7 21.0 -47.7 165 42 318.7 318.7 288.3 318.7 0.01 WND Sounding variables and indices 1000-500 mb thick: 5217.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.22 inches Sfc-500 mean rel hum: 48.86 % Est. max temperature: 2.82 C = 37.08 F Sfc-Lift cond lev (LCL): 919.81 mb = 641.80 m = 2105.62 ft T: -6.70 C 700-500 lapse rate: 7.24 C/km ThetaE index: 2.07 C Layer 925.0- 924.0 mb Conv cond level (CCL): 813.58 mb = 1591.41 m = 5221.11 ft Mean mixing ratio: 2.00 g/kg Conv temperature: 3.44 C = 38.20 F Cap Strength: 12.55 C Lifted Index: 12.88 C Risk: None Lifted Index @300 mb: 28.41 C Lifted Index @700 mb: 9.41 C Showalter Index: 11.77 C Risk: None Total Totals Index: 40.60 C Risk: None Vertical Totals Index: 22.00 C Cross Totals Index: 18.60 C K Index: 0.50 Risk: None Sweat Index: 59.00 Risk: None Energy Index: 3.01 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 5.11 J/kg Max Up Vert Vel: 3.20 m/s Conv Inhibition (B-): 71189.25 J/kg Cap Strength: 12.81 C Lift Cond Lev (LCL): 875.16 mb = 1028.39 m = 3373.95 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 189 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 ---------------------------------------------------------- 0 984 111 125 11 -9.0 6.3 | 58 13 -11.1 -7.0 1 925 598 145 21 -12.0 17.2 | 105 15 -14.2 3.9 2 850 1255 165 21 -5.4 20.3 | 133 10 -7.6 7.0 3 700 2740 155 13 -5.5 11.8 | 79 8 -7.6 -1.5 4 500 5200 165 17 -4.4 16.4 | 116 7 -6.5 3.1 5 400 6740 160 48 -16.4 45.1 | 150 37 -18.6 31.8 6 300 8670 165 42 -10.9 40.6 | 155 30 -13.0 27.3 7 250 9880 160 29 -9.9 27.3 | 139 18 -12.1 14.0 8 200 11360 145 29 -16.6 23.8 | 119 21 -18.8 10.5 9 150 13280 160 25 -8.6 23.5 | 134 15 -10.7 10.2 10 100 15990 155 15 -6.3 13.6 | 92 8 -8.5 0.3 11 70 18340 15 3 -0.8 -2.9 | 10 16 -2.9 -16.2 12 50 20540 155 9 -3.8 8.2 | 49 8 -5.9 -5.1 13 30 23870 120 5 -4.3 2.5 | 31 13 -6.5 -10.8 14 20 26520 105 13 -12.6 3.4 | 56 18 -14.7 -9.9 Wind Parameters Mean winds (0-6000m): 159.1 at 17.9 knts Storm direction: 189.1 at 13.5 knts Shear (0-3000m) pos: 2.1 neg: 1.0 tot: 3.1 10-3/s Storm rel Dir Shear (0-3000m): 25.9 deg Storm rel helicity (0-3000m) pos: 60.6 neg: -17.2 tot: 43.4 m^2/s^2 ave: 14.5 10^-3 m/s^2 rel: 0.36 Storm rel vorticity (0-3000m) horiz: 4.7 stream: 1.7 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.95 Bulk Shear: 5.40 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 ------------------------------------------------------------------------------- 500 138 16 85 13| 11.7 0.0 11.7| 41.5 0.0 41.5 82.9 0.99| 11.9 11.8 1000 147 19 100 13| 7.0 0.0 7.0| 56.4 0.0 56.4 56.4 0.93| 8.8 8.2 1500 153 19 109 12| 4.2 0.0 4.2| 59.4 -3.9 55.5 37.0 0.75| 7.0 5.3 2000 155 19 110 11| 3.2 0.7 3.9| 59.4 -10.1 49.4 24.7 0.54| 6.0 3.3 2500 156 18 108 10| 2.5 1.2 3.7| 59.4 -15.9 43.5 17.4 0.38| 5.4 2.0 3000 156 17 105 10| 2.1 1.0 3.1| 60.6 -17.2 43.4 14.5 0.36| 4.7 1.7 4000 156 17 102 9| 1.8 0.7 2.6| 64.3 -17.2 47.1 11.8 0.40| 3.8 1.5 5000 158 16 103 9| 1.7 0.6 2.3| 68.1 -17.2 50.9 10.2 0.44| 3.2 1.4 6000 159 18 112 9| 1.4 1.1 2.5| 91.3 -17.2 74.1 12.3 0.41| 4.3 1.8 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20250422.00.gif