UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101912.upa.cvt Date: 1200Z 19 OCT 25 Searching for U3921... Searching the city database file for: U3921 ... Date:1200Z 19 OCT 25 Station: U3921 WMO ident: 23921 Latitude: 60.68 Longitude: 60.43 ------------------------------------------------------------------------------- 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 1003 96 0.2 0.2 100 0.0 0.2 0 0 273.1 273.8 273.2 283.5 3.86 1 1000 120 0.4 -0.3 95 0.7 0.1 359 1 273.5 274.2 273.3 283.7 3.74 2 953 507 0.2 -0.5 95 0.7 -0.1 341 9 277.1 277.8 275.5 287.8 3.86 3 925 746 -0.9 -1.7 94 0.8 -1.2 330 15 278.4 279.0 275.9 288.5 3.65 4 850 1415 -4.9 -5.6 95 0.7 -5.1 325 17 281.0 281.5 276.3 289.4 2.96 5 707 2846 -11.7 -12.8 92 1.1 -12.1 244 8 288.7 289.1 278.9 294.7 2.02 6 700 2922 -12.3 -13.4 91 1.1 -12.6 240 7 288.9 289.2 278.9 294.6 1.94 7 540 4850 -27.5 -29.4 84 1.9 -27.8 228 10 293.0 293.1 279.1 295.0 0.62 8 500 5400 -31.3 -33.7 79 2.4 -31.6 225 11 294.9 295.0 279.7 296.3 0.44 9 400 6940 -41.9 -45.9 65 4.0 -42.1 230 15 300.5 300.6 281.8 301.1 0.16 10 310 8619 -53.3 -58.0 56 4.7 -53.4 220 17 307.3 307.3 284.4 307.5 0.05 11 300 8830 -52.9 -57.6 57 4.7 -53.0 220 19 310.8 310.8 285.7 311.0 0.05 12 291 9027 -51.7 -56.5 56 4.8 -51.8 225 19 315.2 315.2 287.2 315.5 0.06 13 250 10010 -52.5 -57.5 55 5.0 -52.7 250 17 328.0 328.0 291.2 328.3 0.06 14 246 10114 -53.1 -58.1 54 5.0 -53.2 251 17 328.6 328.6 291.4 328.9 0.06 15 200 11460 -50.5 -57.5 43 7.0 -50.8 260 21 352.8 352.8 297.3 353.1 0.08 16 180 12150 -49.3 -57.3 39 8.0 -49.7 260 21 365.6 365.6 299.8 366.0 0.09 17 150 13340 -51.5 -60.5 33 9.0 -51.8 260 21 381.3 381.4 302.5 381.7 0.07 18 100 15950 -54.3 -64.3 28 10.0 -54.7 250 19 422.8 422.8 308.1 423.2 0.07 19 70 18220 -57.7 -68.7 23 11.0 -58.1 295 17 460.9 461.0 311.9 461.2 0.05 20 61 19086 -59.3 -69.3 26 10.0 -59.7 281 15 475.9 475.9 313.1 476.2 0.06 21 50 20330 -59.9 -69.9 26 10.0 -60.3 260 11 502.3 502.3 315.1 502.7 0.06 22 30 23510 -59.9 -71.9 19 12.0 -60.7 265 13 581.3 581.4 319.8 581.9 0.08 23 24 24899 -61.3 -72.3 22 11.0 -62.1 615.6 615.6 321.3 616.3 0.09 TRP 310 8619 -53.3 -58.0 56 4.7 -53.4 220 17 307.3 307.3 284.4 307.5 0.05 WND Sounding variables and indices 1000-500 mb thick: 5280.00 m Freezing level: 947.91 mb = 550.39 m = 1805.71 ft Wetbulb zero: 972.54 mb = 343.83 m = 1128.03 ft Precipitable water: 0.48 inches Sfc-500 mean rel hum: 90.18 % Est. max temperature: 7.99 C = 46.39 F Sfc-Lift cond lev (LCL): 1002.82 mb = 97.47 m = 319.79 ft T: 0.21 C 700-500 lapse rate: 7.67 C/km ThetaE index: 0.06 C Layer 700.0- 540.0 mb Conv cond level (CCL): 911.23 mb = 864.66 m = 2836.78 ft Mean mixing ratio: 3.73 g/kg Conv temperature: 5.94 C = 42.69 F Cap Strength: 6.11 C Lifted Index: 7.18 C Risk: None Lifted Index @300 mb: 16.89 C Lifted Index @700 mb: 5.32 C Showalter Index: 5.39 C Risk: None Total Totals Index: 52.10 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 26.40 C Cross Totals Index: 25.70 C K Index: 19.70 Risk: < 20 % chance of thunderstorms Sweat Index: 107.00 Risk: None Energy Index: 1.45 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 22.58 J/kg Max Up Vert Vel: 6.72 m/s Conv Inhibition (B-): 43934.33 J/kg Cap Strength: 7.19 C Lift Cond Lev (LCL): 940.69 mb = 611.11 m = 2004.94 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 300 at 8 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 1003 96 0 0 -0.0 -0.0 | 120 8 -6.9 4.0 1 925 746 330 15 7.5 -13.0 | 356 9 0.6 -9.0 2 850 1415 325 17 9.8 -13.9 | 344 10 2.8 -9.9 3 700 2922 240 7 6.1 3.5 | 173 8 -0.9 7.5 4 500 5400 225 11 7.8 7.8 | 184 12 0.8 11.8 5 400 6940 230 15 11.5 9.6 | 198 14 4.6 13.6 6 310 8619 220 17 10.9 13.0 | 193 17 4.0 17.0 7 300 8830 220 19 12.2 14.6 | 196 19 5.3 18.6 8 250 10010 250 17 16.0 5.8 | 223 13 9.0 9.8 9 200 11460 260 21 20.7 3.6 | 241 16 13.7 7.6 10 150 13340 260 21 20.7 3.6 | 241 16 13.7 7.6 11 100 15950 250 19 17.9 6.5 | 226 15 10.9 10.5 12 70 18220 295 17 15.4 -7.2 | 291 9 8.5 -3.2 13 50 20330 260 11 10.8 1.9 | 213 7 3.9 5.9 14 30 23510 265 13 13.0 1.1 | 229 8 6.0 5.1 Wind Parameters Mean winds (0-6000m): 270.0 at 10.7 knts Storm direction: 300.0 at 8.0 knts Shear (0-3000m) pos: 0.0 neg: 1.2 tot: 1.2 10-3/s Storm rel Dir Shear (0-3000m): 54.9 deg Storm rel helicity (0-3000m) pos: 0.2 neg: -62.7 tot: -62.4 m^2/s^2 ave: -20.8 10^-3 m/s^2 rel: -0.90 Storm rel vorticity (0-3000m) horiz: 6.7 stream: -6.0 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 2.09 Bulk Shear: 10.81 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 ------------------------------------------------------------------------------- 500 328 6 78 4| 0.0 11.9 11.9| 0.0 -19.2 -19.2 -38.5 -0.95| 12.2-11.7 1000 329 10 19 5| 0.0 8.3 8.3| 0.0 -28.7 -28.7 -28.7 -0.92| 8.7 -8.1 1500 327 12 2 6| 0.0 5.4 5.4| 0.0 -37.3 -37.3 -24.8 -0.90| 7.3 -6.6 2000 321 13 349 6| 0.0 3.2 3.2| 0.0 -48.7 -48.7 -24.3 -0.90| 7.5 -6.7 2500 317 12 342 5| 0.0 1.9 1.9| 0.0 -57.2 -57.2 -22.9 -0.91| 7.3 -6.6 3000 314 12 340 4| 0.0 1.2 1.2| 0.2 -62.7 -62.4 -20.8 -0.90| 6.7 -6.0 4000 300 11 300 3| 0.0 1.1 1.1| 2.3 -62.7 -60.4 -15.1 -0.84| 5.2 -4.4 5000 284 11 246 4| 0.0 1.1 1.1| 3.6 -62.7 -59.1 -11.8 -0.79| 4.4 -3.5 6000 270 11 223 5| 0.1 1.0 1.1| 8.7 -62.7 -54.0 -9.0 -0.71| 3.9 -2.8 Wrote GIF file: /home/apache/climate/data/raob//U3921/skewt/U3921.skewt.20251019.12.gif