UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042612.upa.cvt Date: 1200Z 26 APR 25 Searching for U9231... Searching the city database file for: U9231 ... Date:1200Z 26 APR 25 Station: U9231 WMO ident: 29231 Latitude: 58.30 Longitude: 82.88 ------------------------------------------------------------------------------- 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 77 9.4 7.2 86 2.2 8.2 40 1 282.5 283.6 281.4 300.1 6.37 1 973 304 7.8 6.4 91 1.4 7.1 63 7 283.2 284.2 281.5 300.3 6.20 2 925 724 11.0 6.0 71 5.0 8.3 105 19 290.6 291.7 284.8 308.7 6.34 3 892 1029 12.6 6.6 67 6.0 9.2 150 22 295.2 296.5 287.1 315.2 6.86 4 850 1433 9.2 3.2 66 6.0 6.1 210 27 295.8 296.8 286.2 312.4 5.67 5 830 1630 7.8 1.8 66 6.0 4.8 218 29 296.3 297.3 285.9 311.8 5.25 6 755 2403 0.8 -1.4 85 2.2 -0.2 250 36 296.9 297.7 285.5 310.4 4.57 7 700 3008 -2.5 -3.9 90 1.4 -3.1 275 42 299.7 300.5 286.1 312.0 4.09 8 641 3700 -6.7 -7.2 96 0.5 -6.9 272 42 302.6 303.2 286.5 313.2 3.47 9 528 5183 -16.7 -19.2 81 2.5 -17.4 267 42 307.8 308.1 286.4 313.0 1.58 10 500 5590 -18.7 -21.8 77 3.1 -19.4 265 42 310.2 310.5 286.9 314.7 1.34 11 447 6414 -24.3 -27.8 73 3.5 -24.9 268 42 313.3 313.5 287.5 316.3 0.87 12 400 7210 -31.5 -35.7 66 4.2 -32.0 270 42 314.0 314.1 287.3 315.7 0.46 13 354 8062 -38.9 -44.9 53 6.0 -39.3 270 45 315.3 315.3 287.4 316.0 0.20 14 331 8521 -40.9 -48.9 42 8.0 -41.3 270 46 318.6 318.7 288.5 319.1 0.14 15 300 9180 -48.1 -57.1 35 9.0 -48.4 270 48 317.6 317.6 288.0 317.8 0.06 16 286 9493 -51.5 -60.5 33 9.0 -51.7 271 49 317.1 317.1 287.8 317.2 0.04 17 250 10350 -59.7 -68.7 30 9.0 -59.8 275 52 317.3 317.3 287.9 317.4 0.01 18 231 10840 -63.5 -72.5 28 9.0 -63.6 275 52 318.8 318.8 288.3 318.8 0.01 19 208 11493 -58.5 -68.5 27 10.0 -58.6 279 51 336.3 336.3 293.4 336.4 0.02 20 200 11740 -58.1 -70.1 20 12.0 -58.3 280 50 340.8 340.8 294.5 340.8 0.02 21 150 13570 -54.1 -71.1 11 17.0 -54.5 285 44 376.9 376.9 301.8 376.9 0.02 22 100 16170 -54.9 -74.9 7 20.0 -55.4 300 36 421.7 421.7 307.9 421.7 0.01 23 87 17059 -54.7 -74.7 7 20.0 -55.3 296 34 439.2 439.2 309.8 439.3 0.02 24 70 18450 -54.1 -74.1 7 20.0 -54.9 290 31 468.6 468.7 312.5 468.8 0.02 25 50 20610 -53.9 -74.9 6 21.0 -55.0 310 23 516.5 516.5 316.1 516.6 0.03 26 32 23492 -51.5 -74.5 5 23.0 -53.5 593.2 593.2 320.3 593.6 0.05 TRP 231 10840 -63.5 -72.5 28 9.0 -63.6 275 52 318.8 318.8 288.3 318.8 0.01 WND Sounding variables and indices 1000-500 mb thick: 5513.05 m Freezing level: 741.67 mb = 2549.41 m = 8364.10 ft Wetbulb zero: 758.23 mb = 2367.82 m = 7768.35 ft Precipitable water: 0.93 inches Sfc-500 mean rel hum: 82.59 % Est. max temperature: 22.63 C = 72.74 F Sfc-Lift cond lev (LCL): 967.11 mb = 354.20 m = 1162.04 ft T: 8.18 C 700-500 lapse rate: 6.27 C/km ThetaE index: 4.75 C Layer 850.0- 700.0 mb Conv cond level (CCL): 784.52 mb = 2089.86 m = 6856.42 ft Mean mixing ratio: 6.34 g/kg Conv temperature: 23.53 C = 74.35 F Cap Strength: 7.42 C Lifted Index: 6.77 C Risk: None Lifted Index @300 mb: 8.95 C Lifted Index @700 mb: 4.10 C Showalter Index: 2.14 C Risk: Showers probable Total Totals Index: 49.80 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 27.90 C Cross Totals Index: 21.90 C K Index: 29.70 Risk: 40-60 % chance of thunderstorms Sweat Index: 277.79 Risk: None Energy Index: 0.40 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 40.31 J/kg Max Up Vert Vel: 8.98 m/s Conv Inhibition (B-): 32204.66 J/kg Cap Strength: 7.37 C Lift Cond Lev (LCL): 900.53 mb = 949.20 m = 3114.15 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 291 at 26 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 77 40 1 -0.6 -0.8 | 109 26 -25.0 8.4 1 1000 80 40 1 -0.6 -0.8 | 109 26 -25.0 8.4 2 925 724 105 19 -18.4 4.9 | 108 45 -42.7 14.1 3 850 1433 210 27 13.5 23.4 | 162 34 -10.8 32.6 4 700 3008 275 42 41.8 -3.7 | 253 18 17.5 5.5 5 500 5590 265 42 41.8 3.7 | 234 22 17.5 12.8 6 400 7210 270 42 42.0 -0.0 | 243 20 17.7 9.2 7 300 9180 270 48 48.0 -0.0 | 249 25 23.7 9.2 8 250 10350 275 52 51.8 -4.5 | 260 28 27.5 4.6 9 231 10840 275 52 51.8 -4.5 | 260 28 27.5 4.6 10 200 11740 280 50 49.2 -8.7 | 269 25 24.9 0.5 11 150 13570 285 44 42.5 -11.4 | 277 18 18.2 -2.2 12 100 16170 300 36 31.2 -18.0 | 322 11 6.9 -8.8 13 70 18450 290 31 29.1 -10.6 | 287 5 4.8 -1.4 14 50 20610 310 23 17.6 -14.8 | 50 9 -6.7 -5.6 Wind Parameters Mean winds (0-6000m): 260.7 at 34.6 knts Storm direction: 290.7 at 26.0 knts Shear (0-3000m) pos: 7.3 neg: 0.0 tot: 7.3 10-3/s Storm rel Dir Shear (0-3000m): 143.4 deg Storm rel helicity (0-3000m) pos: 770.3 neg: -31.1 tot: 739.1 m^2/s^2 ave: 246.4 10^-3 m/s^2 rel: 0.75 Storm rel vorticity (0-3000m) horiz: 18.2 stream: 13.7 10^-3/s Energy-Hel index: 0.16 Bulk Rich Number: 0.17 Bulk Shear: 239.45 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 87 8 105 33| 14.7 0.0 14.7| 19.4 -31.1 -11.7 -23.5 -0.14| 16.2 -2.3 1000 118 14 113 40| 12.1 0.0 12.1|294.3 -31.1 263.2 263.2 0.51| 21.1 10.7 1500 158 18 130 40| 10.1 0.0 10.1|539.8 -31.1 508.6 339.1 0.66| 23.2 15.2 2000 192 21 146 36| 8.8 0.0 8.8|626.3 -31.1 595.2 297.6 0.69| 20.5 14.2 2500 215 24 160 31| 8.0 0.0 8.0|705.7 -31.1 674.6 269.8 0.72| 19.2 13.9 3000 236 27 175 24| 7.3 0.0 7.3|770.3 -31.1 739.1 246.4 0.75| 18.2 13.7 4000 253 30 195 19| 5.5 0.4 5.8|770.3 -44.1 726.2 181.5 0.71| 14.0 9.9 5000 259 33 207 18| 4.4 0.6 5.0|770.3 -57.5 712.7 142.5 0.67| 11.5 7.7 6000 261 35 214 18| 3.7 0.6 4.3|775.4 -64.4 711.0 118.5 0.65| 9.8 6.4 Wrote GIF file: /home/apache/climate/data/raob//U9231/skewt/U9231.skewt.20250426.12.gif