UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025100912.upa.cvt Date: 1200Z 9 OCT 25 Searching for U1946... Searching the city database file for: U1946 ... Date:1200Z 9 OCT 25 Station: U1946 WMO ident: 21946 Latitude: 70.62 Longitude: 147.90 ------------------------------------------------------------------------------- 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 ------------------------------------------------------------------------------- SFC 1001 42 -2.1 -2.1 100 0.0 -2.1 10 7 271.0 271.5 271.0 279.8 3.27 1 1000 50 -2.1 -2.4 98 0.3 -2.2 5 7 271.0 271.6 270.9 279.7 3.20 2 962 358 -2.3 -2.3 100 0.0 -2.3 27 13 273.9 274.4 272.9 283.0 3.35 3 925 668 -4.5 -4.6 99 0.1 -4.6 50 19 274.7 275.2 272.8 282.8 2.93 4 850 1332 -6.3 -6.3 100 0.0 -6.3 30 15 279.5 280.0 275.3 287.4 2.80 5 721 2605 -12.5 -13.6 91 1.1 -12.8 30 20 286.2 286.5 277.5 291.7 1.85 6 700 2830 -14.9 -16.4 88 1.5 -15.3 30 21 286.0 286.2 276.9 290.5 1.51 7 626 3666 -20.9 -24.5 73 3.6 -21.5 17 16 288.4 288.6 277.2 291.0 0.84 8 531 4863 -29.3 -31.0 85 1.7 -29.5 357 8 292.2 292.3 278.6 294.0 0.54 9 501 5276 -32.9 -35.1 81 2.2 -33.1 350 5 292.8 292.8 278.6 294.0 0.39 10 500 5290 -32.9 -35.1 81 2.2 -33.1 350 5 292.9 293.0 278.7 294.2 0.39 11 442 6148 -37.3 -40.3 74 3.0 -37.5 4 6 297.9 297.9 280.8 298.8 0.26 12 400 6830 -42.3 -46.5 63 4.2 -42.5 15 7 300.0 300.0 281.5 300.5 0.15 13 315 8405 -52.7 -57.7 55 5.0 -52.8 30 7 306.8 306.8 284.2 306.9 0.05 14 300 8720 -52.3 -57.3 55 5.0 -52.4 40 15 311.6 311.6 286.0 311.8 0.06 15 250 9910 -51.3 -61.3 29 10.0 -51.5 45 25 329.8 329.8 291.7 330.0 0.04 16 220 10740 -49.5 -63.5 18 14.0 -49.9 51 25 344.9 344.9 295.5 345.0 0.03 17 200 11360 -50.3 -68.3 10 18.0 -50.7 55 25 353.1 353.1 297.3 353.2 0.02 18 195 11525 -50.7 -69.7 9 19.0 -51.1 56 24 355.0 355.0 297.7 355.1 0.02 19 150 13230 -51.3 -74.3 5 23.0 -51.8 65 19 381.7 381.7 302.5 381.7 0.01 20 100 15860 -52.5 -75.5 5 23.0 -53.2 80 11 426.3 426.3 308.4 426.4 0.01 21 70 18170 -52.3 -75.3 5 23.0 -53.3 105 9 472.5 472.5 312.8 472.6 0.02 22 68 18357 -52.5 -75.5 5 23.0 -53.5 111 9 476.0 476.0 313.1 476.1 0.02 23 50 20340 -51.7 -70.7 9 19.0 -53.0 180 7 521.6 521.7 316.4 522.0 0.06 24 47 20740 -53.1 -76.1 4 23.0 -54.4 185 9 527.6 527.6 316.8 527.8 0.03 25 47 20740 -53.1 -76.1 4 23.0 -54.4 185 9 527.6 527.6 316.8 527.8 0.03 26 30 23650 -50.3 -74.3 4 24.0 -52.7 225 23 607.5 607.5 321.0 607.9 0.05 27 29 23871 -50.3 -74.3 4 24.0 -52.8 613.4 613.5 321.2 613.9 0.06 28 24 25110 -48.9 -72.9 4 24.0 -52.1 651.6 651.6 322.7 652.3 0.08 29 23 25390 -48.5 -72.5 5 24.0 -52.0 660.8 660.8 323.1 661.5 0.09 30 20 26306 -50.5 -74.5 4 24.0 -53.7 681.6 681.6 323.9 682.3 0.08 TRP 315 8405 -52.7 -57.7 55 5.0 -52.8 30 7 306.8 306.8 284.2 306.9 0.05 WND Sounding variables and indices 1000-500 mb thick: 5240.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.40 inches Sfc-500 mean rel hum: 88.81 % Est. max temperature: 6.41 C = 43.53 F Sfc-Lift cond lev (LCL): 1000.79 mb = 43.74 m = 143.49 ft T: -2.10 C 700-500 lapse rate: 7.32 C/km ThetaE index: 1.19 C Layer 700.0- 626.0 mb Conv cond level (CCL): 941.77 mb = 525.93 m = 1725.46 ft Mean mixing ratio: 3.13 g/kg Conv temperature: 1.25 C = 34.25 F Cap Strength: 8.97 C Lifted Index: 9.09 C Risk: None Lifted Index @300 mb: 20.69 C Lifted Index @700 mb: 5.97 C Showalter Index: 5.25 C Risk: None Total Totals Index: 53.20 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 26.60 C Cross Totals Index: 26.60 C K Index: 18.80 Risk: < 20 % chance of thunderstorms Sweat Index: 119.00 Risk: None Energy Index: 1.40 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 16.59 J/kg Max Up Vert Vel: 5.76 m/s Conv Inhibition (B-): 50334.86 J/kg Cap Strength: 8.97 C Lift Cond Lev (LCL): 948.13 mb = 472.66 m = 1550.71 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 58 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 1001 42 10 7 -1.2 -6.9 | 281 8 7.4 -1.4 1 1000 50 5 7 -0.6 -7.0 | 280 8 8.0 -1.5 2 925 668 50 19 -14.6 -12.2 | 41 9 -5.9 -6.7 3 850 1332 30 15 -7.5 -13.0 | 351 8 1.2 -7.5 4 700 2830 30 21 -10.5 -18.2 | 8 13 -1.8 -12.7 5 500 5290 350 5 0.9 -4.9 | 267 10 9.5 0.6 6 400 6830 15 7 -1.8 -6.8 | 281 7 6.8 -1.3 7 315 8405 30 7 -3.5 -6.1 | 276 5 5.2 -0.6 8 300 8720 40 15 -9.6 -11.5 | 9 6 -1.0 -6.0 9 250 9910 45 25 -17.7 -17.7 | 37 15 -9.0 -12.2 10 200 11360 55 25 -20.5 -14.3 | 53 15 -11.8 -8.8 11 150 13230 65 19 -17.2 -8.0 | 73 9 -8.6 -2.5 12 100 15860 80 11 -10.8 -1.9 | 149 4 -2.2 3.6 13 70 18170 105 9 -8.7 2.3 | 180 8 -0.0 7.8 14 50 20340 180 7 0.0 7.0 | 215 15 8.7 12.5 15 30 23650 225 23 16.3 16.3 | 229 33 24.9 21.8 Wind Parameters Mean winds (0-6000m): 27.6 at 13.7 knts Storm direction: 57.6 at 10.2 knts Shear (0-3000m) pos: 1.9 neg: 0.9 tot: 2.8 10-3/s Storm rel Dir Shear (0-3000m): 79.9 deg Storm rel helicity (0-3000m) pos: 34.2 neg: -18.3 tot: 15.9 m^2/s^2 ave: 5.3 10^-3 m/s^2 rel: 0.33 Storm rel vorticity (0-3000m) horiz: 5.0 stream: 1.6 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 29.98 Bulk Shear: 0.55 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 30 12 329 5| 11.5 0.0 11.5| 21.5 0.0 21.5 42.9 0.99| 12.3 12.1 1000 41 15 11 6| 5.7 0.3 6.1| 27.0 -7.1 19.9 19.9 0.61| 9.5 5.8 1500 39 15 7 6| 3.8 1.1 4.9| 28.1 -13.1 15.0 10.0 0.39| 7.6 3.0 2000 36 16 4 7| 2.9 0.9 3.8| 30.6 -13.1 17.5 8.7 0.41| 6.2 2.5 2500 35 16 4 8| 2.3 1.0 3.3| 33.1 -13.1 20.0 8.0 0.41| 5.4 2.2 3000 34 17 5 9| 1.9 0.9 2.8| 34.2 -18.3 15.9 5.3 0.33| 5.0 1.6 4000 31 17 359 9| 1.4 1.1 2.5| 34.2 -39.9 -5.7 -1.4 0.05| 4.8 0.2 5000 29 15 351 8| 1.1 1.3 2.5| 34.2 -57.6 -23.4 -4.7 -0.12| 4.5 -0.5 6000 28 14 341 7| 1.0 1.1 2.1| 36.5 -61.5 -25.0 -4.2 -0.12| 4.0 -0.5 Wrote GIF file: /home/apache/climate/data/raob//U1946/skewt/U1946.skewt.20251009.12.gif