UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041512.upa.cvt Date: 1200Z 15 APR 25 Searching for U4641... Searching the city database file for: U4641 ... Date:1200Z 15 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 54 125 3 SFC 993 110 -2.9 -13.9 42 11.0 -5.9 125 3 270.8 271.0 267.7 274.5 1.31 2 985 174 -1.5 -11.5 46 10.0 -4.5 126 4 272.8 273.1 269.5 277.3 1.61 3 925 670 -5.5 -18.5 35 13.0 -8.6 135 11 273.7 273.8 269.0 276.5 0.96 4 885 1015 -7.7 -19.7 38 12.0 -10.4 148 9 274.9 275.0 269.6 277.5 0.90 5 874 1113 -7.9 -19.9 37 12.0 -10.6 152 8 275.7 275.8 270.1 278.3 0.90 6 850 1329 -8.1 -28.1 18 20.0 -11.7 160 7 277.7 277.7 270.5 279.0 0.44 7 833 1486 -7.9 -31.9 13 24.0 -11.9 142 7 279.5 279.5 271.4 280.5 0.32 8 818 1627 -8.1 -32.1 13 24.0 -12.1 126 6 280.7 280.8 272.2 281.7 0.32 9 716 2649 -13.9 -30.9 22 17.0 -16.6 10 3 285.2 285.3 274.8 286.5 0.41 10 700 2820 -15.7 -33.7 20 18.0 -18.3 350 3 285.1 285.2 274.6 286.1 0.32 11 662 3238 -19.3 -37.3 19 18.0 -21.4 344 6 285.6 285.7 274.8 286.4 0.23 12 605 3905 -22.3 -37.3 24 15.0 -24.0 335 11 289.6 289.7 276.9 290.5 0.26 13 579 4228 -22.5 -34.5 33 12.0 -24.0 330 13 293.0 293.1 278.7 294.2 0.35 14 500 5290 -29.7 -38.7 41 9.0 -30.6 315 21 296.8 296.9 280.3 297.7 0.27 15 493 5390 -30.3 -38.3 46 8.0 -31.0 314 22 297.3 297.3 280.6 298.3 0.28 16 420 6513 -35.9 -42.9 49 7.0 -36.4 307 36 304.1 304.1 283.3 304.8 0.21 17 400 6850 -38.1 -44.1 53 6.0 -38.5 305 40 305.5 305.5 283.8 306.1 0.19 18 395 6936 -38.7 -44.7 53 6.0 -39.1 305 41 305.8 305.8 284.0 306.4 0.18 19 300 8770 -51.8 -57.8 49 6.0 -51.9 305 73 312.4 312.4 286.2 312.6 0.05 20 293 8922 -52.9 -58.9 48 6.0 -53.0 305 71 312.9 312.9 286.4 313.1 0.05 21 278 9259 -54.1 -59.1 54 5.0 -54.2 305 66 315.9 315.9 287.5 316.1 0.05 22 266 9542 -54.5 -59.5 54 5.0 -54.6 305 62 319.3 319.3 288.6 319.5 0.05 23 257 9762 -52.9 -58.9 48 6.0 -53.1 305 59 324.8 324.9 290.3 325.1 0.05 24 250 9940 -53.1 -59.1 48 6.0 -53.2 305 56 327.1 327.1 291.0 327.3 0.05 25 200 11390 -49.7 -55.7 49 6.0 -50.0 295 31 354.1 354.1 297.6 354.5 0.10 26 150 13280 -47.3 -54.3 45 7.0 -47.8 285 17 388.6 388.6 303.7 389.3 0.16 27 148 13369 -46.9 -53.9 45 7.0 -47.4 285 17 390.7 390.8 304.0 391.5 0.17 28 140 13735 -49.3 -57.3 39 8.0 -49.7 284 17 392.8 392.8 304.3 393.4 0.12 29 100 15940 -49.3 -58.3 34 9.0 -50.0 280 17 432.5 432.5 309.2 433.2 0.15 30 85 17002 -49.9 -59.9 30 10.0 -50.7 275 14 451.8 451.9 311.1 452.6 0.14 31 70 18260 -53.1 -63.1 29 10.0 -53.8 270 11 470.8 470.8 312.8 471.4 0.11 32 69 18353 -53.5 -63.5 28 10.0 -54.1 271 11 471.9 471.9 312.8 472.5 0.11 33 60 19251 -54.1 -64.1 28 10.0 -54.8 277 11 489.8 489.8 314.2 490.5 0.12 34 56 19696 -51.3 -62.3 26 11.0 -52.3 280 11 505.9 506.0 315.4 506.9 0.16 35 50 20430 -52.7 -63.7 25 11.0 -53.7 285 11 519.3 519.3 316.3 520.2 0.15 36 40 21864 -54.7 -65.7 24 11.0 -55.6 548.5 548.5 318.1 549.4 0.14 TRP 278 9259 -54.1 -59.1 54 5.0 -54.2 305 66 315.9 315.9 287.5 316.1 0.05 WND 300 8770 -51.8 -57.8 49 6.0 -51.9 305 73 312.4 312.4 286.2 312.6 0.05 Sounding variables and indices 1000-500 mb thick: 5236.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.13 inches Sfc-500 mean rel hum: 27.40 % Est. max temperature: 4.70 C = 40.45 F Sfc-Lift cond lev (LCL): 834.43 mb = 1472.54 m = 4831.12 ft T: -7.92 C 700-500 lapse rate: 5.67 C/km ThetaE index: 0.88 C Layer 925.0- 885.0 mb Conv cond level (CCL): 641.52 mb = 3470.98 m = 11387.58 ft Mean mixing ratio: 1.18 g/kg Conv temperature: 13.30 C = 55.94 F Cap Strength: 14.63 C Lifted Index: 16.75 C Risk: None Lifted Index @300 mb: 25.19 C Lifted Index @700 mb: 9.36 C Showalter Index: 14.99 C Risk: None Total Totals Index: 23.20 C Risk: None Vertical Totals Index: 21.60 C Cross Totals Index: 1.60 C K Index: -24.50 Risk: None Sweat Index: 35.00 Risk: None Energy Index: 3.95 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 7.27 J/kg Max Up Vert Vel: 3.81 m/s Conv Inhibition (B-): 41997.14 J/kg Cap Strength: 16.58 C Lift Cond Lev (LCL): 784.95 mb = 1943.44 m = 6376.05 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 344 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 ---------------------------------------------------------- 0 993 110 125 3 -2.5 1.7 | 154 11 -4.8 10.0 1 925 670 135 11 -7.8 7.8 | 148 19 -10.2 16.1 2 850 1329 160 7 -2.4 6.6 | 162 16 -4.8 14.9 3 700 2820 350 3 0.5 -3.0 | 161 6 -1.9 5.3 4 500 5290 315 21 14.8 -14.8 | 298 14 12.5 -6.6 5 400 6850 305 40 32.8 -22.9 | 296 34 30.4 -14.7 6 300 8770 305 73 59.8 -41.9 | 300 67 57.4 -33.6 7 278 9259 305 66 54.1 -37.9 | 300 60 51.7 -29.6 8 250 9940 305 56 45.9 -32.1 | 299 50 43.5 -23.8 9 200 11390 295 31 28.1 -13.1 | 281 26 25.7 -4.8 10 150 13280 285 17 16.4 -4.4 | 255 15 14.0 3.9 11 100 15940 280 17 16.7 -3.0 | 250 15 14.4 5.3 12 70 18260 270 11 11.0 -0.0 | 226 12 8.6 8.3 13 50 20430 285 11 10.6 -2.8 | 237 10 8.2 5.4 Wind Parameters Mean winds (0-6000m): 314.0 at 11.5 knts Storm direction: 344.0 at 8.6 knts Shear (0-3000m) pos: 1.0 neg: 2.3 tot: 3.3 10-3/s Storm rel Dir Shear (0-3000m): 7.0 deg Storm rel helicity (0-3000m) pos: 24.8 neg: -29.9 tot: -5.1 m^2/s^2 ave: -1.7 10^-3 m/s^2 rel: -0.03 Storm rel vorticity (0-3000m) horiz: 5.2 stream: -0.2 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.17 Bulk Shear: 43.02 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 ------------------------------------------------------------------------------- 500 133 7 150 15| 7.4 0.0 7.4| 0.0 -5.3 -5.3 -10.7 -0.21| 7.4 -1.5 1000 138 8 151 16| 3.0 0.0 3.0| 15.2 -5.3 9.9 9.9 0.15| 5.9 0.9 1500 141 8 153 16| 2.0 1.2 3.2| 20.0 -18.7 1.3 0.9 -0.03| 5.8 -0.2 2000 136 7 151 15| 1.5 2.3 3.8| 20.0 -29.7 -9.6 -4.8 -0.17| 5.8 -1.0 2500 139 7 153 15| 1.2 2.3 3.5| 22.7 -29.9 -7.3 -2.9 -0.09| 5.5 -0.5 3000 141 6 154 14| 1.0 2.3 3.3| 24.8 -29.9 -5.1 -1.7 -0.03| 5.2 -0.2 4000 111 7 141 14| 0.7 2.7 3.4| 25.9 -29.9 -4.0 -1.0 0.05| 4.9 0.3 5000 320 9 244 4| 0.6 2.9 3.5| 25.9 -33.1 -7.2 -1.4 0.02| 4.8 0.1 6000 314 11 267 6| 0.5 3.3 3.8| 27.0 -35.9 -8.9 -1.5 0.01| 5.0 0.0 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20250415.12.gif