UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041800.upa.cvt Date: 0000Z 18 APR 25 Searching for U4908... Searching the city database file for: U4908 ... Date:0000Z 18 APR 25 Station: U4908 WMO ident: 24908 Latitude: 60.33 Longitude: 102.27 ------------------------------------------------------------------------------- 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 ------------------------------------------------------------------------------- 0 1000 -38 SFC 964 262 5.4 -5.6 45 11.0 1.1 185 3 281.5 281.9 276.1 288.9 2.61 2 925 600 5.6 -6.4 42 12.0 0.9 220 25 285.0 285.5 277.9 292.4 2.56 3 918 662 6.0 -6.0 42 12.0 1.2 220 26 286.1 286.5 278.5 293.8 2.66 4 896 860 4.8 -8.2 38 13.0 -0.1 220 28 286.8 287.2 278.4 293.5 2.30 5 850 1288 2.4 -10.6 38 13.0 -2.2 220 33 288.7 289.0 278.9 294.6 2.00 6 839 1393 2.0 -11.0 37 13.0 -2.6 220 33 289.3 289.7 279.1 295.2 1.96 7 721 2591 -8.9 -14.9 62 6.0 -10.6 224 36 290.2 290.5 279.1 295.2 1.67 8 700 2819 -10.5 -15.5 67 5.0 -11.9 225 36 290.9 291.1 279.4 295.8 1.63 9 610 3863 -18.3 -22.1 72 3.8 -19.1 229 38 293.5 293.7 280.0 296.9 1.07 10 603 3949 -17.9 -21.5 73 3.6 -18.7 229 39 295.0 295.2 280.7 298.5 1.14 11 588 4138 -18.3 -22.5 70 4.2 -19.2 230 39 296.6 296.8 281.3 300.0 1.07 12 556 4554 -20.5 -27.5 53 7.0 -21.7 232 40 298.8 299.0 281.8 301.2 0.72 13 500 5330 -26.9 -37.9 35 11.0 -28.1 235 42 300.2 300.3 281.8 301.2 0.29 14 443 6187 -34.5 -47.5 26 13.0 -35.3 232 42 301.2 301.2 282.0 301.6 0.12 15 400 6890 -40.7 -52.7 26 12.0 -41.2 230 42 302.1 302.1 282.3 302.4 0.07 16 395 6976 -41.5 -53.5 26 12.0 -41.9 230 43 302.1 302.2 282.3 302.4 0.07 17 300 8790 -55.1 -63.1 36 8.0 -55.2 220 71 307.7 307.7 284.5 307.8 0.03 18 289 9027 -56.9 -63.9 41 7.0 -57.0 224 74 308.4 308.4 284.8 308.5 0.02 19 288 9049 -56.7 -63.7 41 7.0 -56.8 225 74 309.0 309.0 285.0 309.1 0.03 20 275 9340 -57.9 -64.9 40 7.0 -58.0 230 77 311.4 311.4 285.8 311.4 0.02 21 269 9479 -58.5 -65.5 40 7.0 -58.6 230 75 312.5 312.5 286.2 312.6 0.02 22 250 9940 -56.9 -63.9 41 7.0 -57.0 230 68 321.5 321.5 289.2 321.6 0.03 23 207 11155 -49.7 -58.7 34 9.0 -50.0 230 43 350.6 350.6 296.8 350.9 0.07 24 200 11380 -50.5 -59.5 34 9.0 -50.8 230 38 352.8 352.8 297.3 353.1 0.06 25 172 12370 -48.3 -60.3 24 12.0 -48.8 235 38 372.0 372.0 300.9 372.3 0.07 26 150 13270 -49.9 -63.9 18 14.0 -50.4 240 38 384.1 384.1 302.9 384.3 0.05 27 127 14354 -51.1 -66.1 15 15.0 -51.7 248 32 400.6 400.7 305.3 400.9 0.04 28 112 15172 -50.1 -66.1 14 16.0 -50.8 254 27 417.2 417.2 307.4 417.4 0.05 29 100 15910 -51.3 -68.3 11 17.0 -52.0 260 23 428.6 428.6 308.7 428.8 0.04 30 94 16309 -53.7 -70.7 11 17.0 -54.3 261 23 431.5 431.5 309.0 431.7 0.03 31 80 17353 -49.9 -67.9 10 18.0 -51.0 263 23 459.7 459.7 311.8 460.0 0.05 32 70 18220 -52.1 -70.1 10 18.0 -53.0 265 23 472.9 472.9 312.9 473.2 0.04 33 50 20410 -53.1 -72.1 8 19.0 -54.2 280 13 518.3 518.4 316.2 518.6 0.05 34 40 21849 -52.9 -72.9 7 20.0 -54.4 553.0 553.0 318.3 553.3 0.05 TRP 275 9340 -58.1 -65.1 40 7.0 -58.2 230 77 311.1 311.1 285.7 311.2 0.02 WND 275 9340 -57.9 -64.9 40 7.0 -58.0 230 77 311.4 311.4 285.8 311.4 0.02 Sounding variables and indices 1000-500 mb thick: 5368.00 m Freezing level: 817.35 mb = 1612.86 m = 5291.47 ft Wetbulb zero: 898.11 mb = 841.03 m = 2759.24 ft Precipitable water: 0.31 inches Sfc-500 mean rel hum: 53.75 % Est. max temperature: 13.35 C = 56.04 F Sfc-Lift cond lev (LCL): 813.19 mb = 1640.00 m = 5380.51 ft T: -0.25 C 700-500 lapse rate: 6.53 C/km ThetaE index: 0.23 C Layer 896.0- 850.0 mb Conv cond level (CCL): 697.89 mb = 2841.89 m = 9323.68 ft Mean mixing ratio: 2.43 g/kg Conv temperature: 14.74 C = 58.53 F Cap Strength: 7.20 C Lifted Index: 7.42 C Risk: None Lifted Index @300 mb: 10.74 C Lifted Index @700 mb: 3.43 C Showalter Index: 5.89 C Risk: None Total Totals Index: 45.60 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 29.30 C Cross Totals Index: 16.30 C K Index: 13.70 Risk: None Sweat Index: 165.35 Risk: None Energy Index: 1.37 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 26.50 J/kg Max Up Vert Vel: 7.28 m/s Conv Inhibition (B-): 34703.50 J/kg Cap Strength: 7.37 C Lift Cond Lev (LCL): 754.96 mb = 2227.13 m = 7306.75 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 258 at 27 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 ---------------------------------------------------------- 0 964 262 185 3 0.3 3.0 | 84 26 -26.1 -2.6 1 925 600 220 25 16.1 19.2 | 143 17 -10.3 13.5 2 850 1288 220 33 21.2 25.3 | 165 20 -5.2 19.6 3 700 2819 225 36 25.5 25.5 | 177 20 -0.9 19.8 4 500 5330 235 42 34.4 24.1 | 203 20 8.0 18.5 5 400 6890 230 42 32.2 27.0 | 195 22 5.8 21.4 6 300 8790 220 71 45.6 54.4 | 202 52 19.3 48.8 7 275 9340 230 77 59.0 49.5 | 217 55 32.6 43.9 8 250 9940 230 68 52.1 43.7 | 214 46 25.7 38.1 9 200 11380 230 38 29.1 24.4 | 188 19 2.7 18.8 10 150 13270 240 38 32.9 19.0 | 206 15 6.5 13.4 11 100 15910 260 23 22.7 4.0 | 66 4 -3.7 -1.6 12 70 18220 265 23 22.9 2.0 | 44 5 -3.5 -3.6 13 50 20410 280 13 12.8 -2.3 | 60 16 -13.6 -7.9 Wind Parameters Mean winds (0-6000m): 227.9 at 36.0 knts Storm direction: 257.9 at 27.0 knts Shear (0-3000m) pos: 5.0 neg: 1.0 tot: 6.0 10-3/s Storm rel Dir Shear (0-3000m): 97.6 deg Storm rel helicity (0-3000m) pos: 191.2 neg: 0.0 tot: 191.2 m^2/s^2 ave: 63.7 10^-3 m/s^2 rel: 0.93 Storm rel vorticity (0-3000m) horiz: 6.4 stream: 6.0 10^-3/s Energy-Hel index: 0.03 Bulk Rich Number: 0.57 Bulk Shear: 46.21 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 ------------------------------------------------------------------------------- 500 218 18 119 18| 25.2 0.0 25.2|133.8 0.0 133.8 267.7 0.93| 26.4 24.5 1000 219 24 139 17| 12.6 3.0 15.6|159.4 0.0 159.4 159.4 0.92| 16.2 14.9 1500 220 27 149 18| 8.8 2.0 10.8|167.5 0.0 167.5 111.7 0.92| 11.3 10.5 2000 221 29 155 18| 6.9 1.5 8.4|174.8 0.0 174.8 87.4 0.93| 8.9 8.2 2500 221 30 160 18| 5.7 1.2 6.9|182.2 0.0 182.2 72.9 0.93| 7.4 6.9 3000 222 31 163 18| 5.0 1.0 6.0|191.2 0.0 191.2 63.7 0.93| 6.4 6.0 4000 224 33 169 18| 4.1 0.7 4.8|209.8 0.0 209.8 52.5 0.94| 5.3 5.0 5000 226 35 176 18| 3.5 0.6 4.1|229.2 0.0 229.2 45.8 0.94| 4.6 4.3 6000 228 36 181 18| 3.0 0.6 3.5|230.2 -9.8 220.5 36.7 0.86| 4.0 3.5 Wrote GIF file: /home/apache/climate/data/raob//U4908/skewt/U4908.skewt.20250418.00.gif