UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042812.upa.cvt Date: 1200Z 28 APR 25 Searching for U2820... Searching the city database file for: U2820 ... Date:1200Z 28 APR 25 Station: U2820 WMO ident: 22820 Latitude: 61.82 Longitude: 34.27 ------------------------------------------------------------------------------- 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 1000 111 6.6 -1.4 57 8.0 3.2 225 7 279.8 280.3 276.3 289.4 3.45 1 998 128 5.4 -3.6 52 9.0 1.8 225 7 278.7 279.2 275.0 286.9 2.93 2 925 742 -0.5 -6.5 64 6.0 -2.7 240 13 278.8 279.2 274.5 285.9 2.54 3 918 803 -1.3 -6.3 69 5.0 -3.1 244 13 278.6 279.0 274.5 285.9 2.60 4 850 1412 -5.1 -8.6 76 3.5 -6.2 290 17 280.8 281.2 275.3 287.5 2.35 5 797 1916 -7.1 -11.1 73 4.0 -8.4 293 18 283.9 284.2 276.6 289.9 2.05 6 768 2203 -9.7 -14.1 70 4.4 -10.9 295 19 284.1 284.4 276.2 289.0 1.67 7 765 2233 -9.5 -13.9 70 4.4 -10.8 295 19 284.6 284.9 276.5 289.7 1.70 8 757 2315 -6.7 -12.7 62 6.0 -8.6 296 19 288.5 288.9 278.7 294.2 1.90 9 737 2524 -6.7 -21.7 29 15.0 -10.4 297 20 290.8 290.9 278.4 293.6 0.91 10 717 2738 -8.3 -30.3 15 22.0 -12.5 299 21 291.3 291.4 278.0 292.7 0.43 11 700 2924 -9.3 -27.3 22 18.0 -13.0 300 21 292.2 292.3 278.6 294.0 0.58 12 616 3898 -16.1 -26.1 42 10.0 -18.0 300 26 295.3 295.4 280.3 297.6 0.74 13 558 4632 -23.1 -30.1 53 7.0 -24.1 300 29 295.5 295.6 280.1 297.3 0.56 14 539 4885 -24.1 -30.1 58 6.0 -25.0 300 30 297.2 297.3 281.0 299.1 0.58 15 533 4967 -24.1 -30.1 58 6.0 -25.0 300 31 298.2 298.3 281.4 300.1 0.59 16 500 5430 -27.1 -39.1 31 12.0 -28.3 300 33 300.0 300.0 281.7 300.9 0.26 17 451 6165 -31.1 -47.1 19 16.0 -32.3 300 32 304.0 304.0 283.1 304.4 0.12 18 450 6181 -31.5 -47.5 19 16.0 -32.6 300 32 303.6 303.7 283.0 304.1 0.12 19 400 7000 -38.7 -50.7 27 12.0 -39.3 300 31 304.7 304.7 283.4 305.0 0.09 20 319 8512 -50.9 -59.9 34 9.0 -51.1 300 33 308.1 308.2 284.7 308.3 0.04 21 300 8910 -53.1 -62.1 33 9.0 -53.2 300 33 310.5 310.5 285.5 310.6 0.03 22 287 9196 -54.3 -63.3 32 9.0 -54.4 304 33 312.7 312.8 286.4 312.9 0.03 23 284 9264 -55.3 -64.3 32 9.0 -55.4 305 33 312.3 312.3 286.2 312.3 0.02 24 271 9564 -55.9 -64.9 32 9.0 -56.0 305 32 315.6 315.6 287.3 315.7 0.02 25 250 10080 -55.3 -64.3 32 9.0 -55.5 305 29 323.9 323.9 290.0 324.0 0.03 26 200 11510 -51.9 -64.9 20 13.0 -52.2 300 27 350.6 350.6 296.8 350.7 0.03 27 154 13208 -50.1 -68.1 10 18.0 -50.7 305 25 380.9 380.9 302.4 381.0 0.03 28 150 13380 -50.5 -68.5 10 18.0 -51.1 305 25 383.1 383.1 302.8 383.2 0.03 29 100 16020 -52.5 -75.5 5 23.0 -53.2 300 19 426.3 426.3 308.4 426.4 0.01 30 97 16216 -52.7 -75.7 5 23.0 -53.4 297 18 429.6 429.6 308.8 429.7 0.01 31 70 18320 -51.9 -75.9 4 24.0 -52.9 265 11 473.4 473.4 312.9 473.5 0.02 32 58 19544 -50.7 -74.7 4 24.0 -52.1 243 12 502.2 502.2 315.1 502.4 0.03 33 50 20510 -51.7 -75.7 4 24.0 -53.1 225 13 521.6 521.6 316.4 521.8 0.03 34 30 23790 -55.5 -79.5 3 24.0 -57.0 220 13 593.3 593.3 320.3 593.5 0.02 35 29 24006 -55.9 -79.9 3 24.0 -57.3 218 14 598.0 598.0 320.5 598.2 0.02 36 26 24704 -53.3 -77.3 4 24.0 -55.4 213 17 624.4 624.4 321.7 624.7 0.04 37 20 26400 -51.3 -75.3 4 24.0 -54.3 200 25 679.1 679.2 323.7 679.7 0.07 38 15 28264 -51.7 -75.7 4 24.0 -55.2 198 25 736.1 736.1 325.6 736.8 0.09 39 14 28716 -47.1 -73.1 4 26.0 -52.4 197 25 766.3 766.4 326.4 767.6 0.14 40 10 30960 -43.3 -69.3 4 26.0 -51.4 195 25 857.9 858.1 328.7 861.5 0.34 41 9.3 31451 -41.3 -68.3 4 27.0 -50.7 883.5 883.8 329.2 888.1 0.42 TRP 284 9264 -55.3 -64.3 32 9.0 -55.4 305 33 312.3 312.3 286.2 312.3 0.02 WND Sounding variables and indices 1000-500 mb thick: 5318.72 m Freezing level: 931.19 mb = 689.94 m = 2263.55 ft Wetbulb zero: 968.86 mb = 367.34 m = 1205.16 ft Precipitable water: 0.31 inches Sfc-500 mean rel hum: 51.13 % Est. max temperature: 7.65 C = 45.78 F Sfc-Lift cond lev (LCL): 884.18 mb = 1099.89 m = 3608.53 ft T: -3.15 C 700-500 lapse rate: 7.10 C/km ThetaE index: 3.48 C Layer 998.0- 850.0 mb Conv cond level (CCL): 789.30 mb = 1991.04 m = 6532.20 ft Mean mixing ratio: 2.70 g/kg Conv temperature: 10.80 C = 51.44 F Cap Strength: 10.86 C Lifted Index: 11.90 C Risk: None Lifted Index @300 mb: 17.13 C Lifted Index @700 mb: 8.79 C Showalter Index: 11.02 C Risk: None Total Totals Index: 40.50 C Risk: None Vertical Totals Index: 22.00 C Cross Totals Index: 18.50 C K Index: -4.60 Risk: None Sweat Index: 67.00 Risk: None Energy Index: 2.84 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 0.77 J/kg Max Up Vert Vel: 1.24 m/s Conv Inhibition (B-): 69453.27 J/kg Cap Strength: 11.80 C Lift Cond Lev (LCL): 852.69 mb = 1387.03 m = 4550.55 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 325 at 17 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 1000 111 225 7 4.9 4.9 | 165 19 -4.9 18.8 1 1000 112 225 7 4.9 4.9 | 165 19 -4.9 18.8 2 925 742 240 13 11.3 6.5 | 184 20 1.4 20.4 3 850 1412 290 17 16.0 -5.8 | 217 10 6.1 8.1 4 700 2924 300 21 18.2 -10.5 | 248 9 8.3 3.4 5 500 5430 300 33 28.6 -16.5 | 278 19 18.7 -2.6 6 400 7000 300 31 26.8 -15.5 | 275 17 17.0 -1.6 7 300 8910 300 33 28.6 -16.5 | 278 19 18.7 -2.6 8 284 9264 305 33 27.0 -18.9 | 286 18 17.2 -5.1 9 250 10080 305 29 23.8 -16.6 | 281 14 13.9 -2.8 10 200 11510 300 27 23.4 -13.5 | 268 14 13.5 0.4 11 150 13380 305 25 20.5 -14.3 | 273 11 10.6 -0.5 12 100 16020 300 19 16.5 -9.5 | 237 8 6.6 4.4 13 70 18320 265 11 11.0 1.0 | 184 15 1.1 14.8 14 50 20510 225 13 9.2 9.2 | 178 23 -0.6 23.1 15 30 23790 220 13 8.4 10.0 | 176 24 -1.5 23.8 16 20 26400 200 25 8.6 23.5 | 178 37 -1.3 37.4 17 10 30960 195 25 6.5 24.1 | 175 38 -3.4 38.0 Wind Parameters Mean winds (0-6000m): 294.7 at 22.7 knts Storm direction: 324.7 at 17.0 knts Shear (0-3000m) pos: 3.6 neg: 0.0 tot: 3.6 10-3/s Storm rel Dir Shear (0-3000m): 86.8 deg Storm rel helicity (0-3000m) pos: 85.9 neg: 0.0 tot: 85.9 m^2/s^2 ave: 28.6 10^-3 m/s^2 rel: 0.80 Storm rel vorticity (0-3000m) horiz: 4.5 stream: 3.6 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.01 Bulk Shear: 53.44 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 ------------------------------------------------------------------------------- 500 232 9 173 20| 5.3 0.0 5.3| 26.7 0.0 26.7 53.4 0.99| 5.3 5.2 1000 244 12 181 19| 5.7 0.0 5.7| 58.7 0.0 58.7 58.7 0.85| 7.0 6.0 1500 261 13 191 16| 5.5 0.0 5.5| 73.2 0.0 73.2 48.8 0.77| 7.1 5.5 2000 272 14 199 14| 4.5 0.0 4.5| 77.4 0.0 77.4 38.7 0.78| 5.8 4.5 2500 279 15 205 13| 4.0 0.0 4.0| 81.6 0.0 81.6 32.6 0.80| 5.0 4.0 3000 284 16 211 12| 3.6 0.0 3.6| 85.9 0.0 85.9 28.6 0.80| 4.5 3.6 4000 289 18 224 11| 2.7 0.6 3.3| 94.9 0.0 94.9 23.7 0.78| 4.0 3.1 5000 293 21 237 11| 2.2 1.0 3.2|103.9 0.0 103.9 20.8 0.74| 3.7 2.7 6000 295 23 248 12| 1.8 0.9 2.7|106.6 -1.5 105.2 17.5 0.70| 3.3 2.3 Wrote GIF file: /home/apache/climate/data/raob//U2820/skewt/U2820.skewt.20250428.12.gif