UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042512.upa.cvt Date: 1200Z 25 APR 25 Searching for U9231... Searching the city database file for: U9231 ... Date:1200Z 25 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 1006 74 10.8 1.8 54 9.0 6.5 220 5 283.5 284.2 279.4 295.6 4.33 1 1000 124 10.6 1.6 54 9.0 6.3 220 5 283.8 284.5 279.5 295.8 4.29 2 925 769 7.2 0.2 61 7.0 3.9 230 9 286.7 287.4 280.7 298.6 4.19 3 899 1002 6.2 -0.8 61 7.0 3.0 237 11 288.0 288.7 281.1 299.5 4.01 4 880 1176 7.2 3.0 75 4.2 5.1 242 13 290.8 291.7 283.9 306.3 5.40 5 870 1270 7.2 3.0 75 4.2 5.1 244 13 291.7 292.7 284.4 307.5 5.46 6 850 1460 7.2 3.0 75 4.2 5.1 250 15 293.7 294.7 285.3 309.9 5.59 7 700 3027 -4.7 -6.9 85 2.2 -5.6 285 29 297.3 297.9 284.2 307.1 3.25 8 658 3512 -7.5 -8.8 90 1.3 -8.0 286 31 299.4 300.0 284.8 308.5 2.99 9 517 5352 -18.5 -21.0 81 2.5 -19.1 290 37 307.5 307.8 286.1 312.1 1.39 10 500 5600 -21.3 -24.0 79 2.7 -21.9 290 38 307.1 307.3 285.5 310.7 1.10 11 473 6006 -25.1 -28.2 75 3.1 -25.6 290 38 307.3 307.4 285.3 309.9 0.79 12 400 7200 -34.1 -40.1 55 6.0 -34.7 290 36 310.7 310.7 285.9 311.7 0.29 13 373 7684 -37.5 -43.5 53 6.0 -37.9 290 36 312.4 312.5 286.5 313.2 0.22 14 334 8432 -44.1 -52.1 41 8.0 -44.5 290 35 313.4 313.4 286.6 313.8 0.09 15 300 9140 -50.1 -58.1 38 8.0 -50.3 290 35 314.7 314.7 287.1 314.9 0.05 16 256 10161 -59.3 -67.3 35 8.0 -59.4 294 33 315.8 315.8 287.3 315.8 0.02 17 250 10310 -59.7 -67.7 35 8.0 -59.8 295 33 317.3 317.3 287.9 317.4 0.02 18 227 10911 -62.3 -70.3 33 8.0 -62.4 300 33 322.2 322.2 289.5 322.3 0.01 19 212 11335 -61.7 -69.7 34 8.0 -61.8 303 32 329.5 329.5 291.6 329.6 0.02 20 200 11700 -58.1 -68.1 27 10.0 -58.2 305 31 340.8 340.8 294.5 340.8 0.02 21 187 12127 -55.1 -67.1 21 12.0 -55.4 306 31 352.2 352.2 297.1 352.3 0.02 22 150 13540 -54.1 -70.1 12 16.0 -54.5 310 29 376.9 376.9 301.8 377.0 0.02 23 100 16130 -53.7 -73.7 7 20.0 -54.3 315 23 424.0 424.0 308.2 424.1 0.02 24 87 17028 -53.7 -73.7 7 20.0 -54.4 311 21 441.2 441.2 310.0 441.3 0.02 25 70 18430 -53.1 -73.1 7 20.0 -53.9 305 19 470.8 470.8 312.7 470.9 0.03 26 50 20600 -52.3 -72.3 7 20.0 -53.6 290 17 520.2 520.2 316.4 520.5 0.04 27 30 23910 -50.9 -70.9 8 20.0 -53.1 275 11 605.9 605.9 320.9 606.6 0.09 28 24 25363 -50.9 -70.9 8 20.0 -53.5 645.8 645.8 322.6 646.7 0.11 TRP 227 10911 -62.3 -70.3 33 8.0 -62.4 300 33 322.2 322.2 289.5 322.3 0.01 WND Sounding variables and indices 1000-500 mb thick: 5476.00 m Freezing level: 759.24 mb = 2408.10 m = 7900.50 ft Wetbulb zero: 778.65 mb = 2167.64 m = 7111.60 ft Precipitable water: 0.76 inches Sfc-500 mean rel hum: 78.26 % Est. max temperature: 20.45 C = 68.81 F Sfc-Lift cond lev (LCL): 877.30 mb = 1201.32 m = 3941.29 ft T: 7.20 C 700-500 lapse rate: 6.45 C/km ThetaE index: 2.85 C Layer 700.0- 658.0 mb Conv cond level (CCL): 717.72 mb = 2825.18 m = 9268.86 ft Mean mixing ratio: 4.22 g/kg Conv temperature: 24.20 C = 75.57 F Cap Strength: 10.19 C Lifted Index: 9.44 C Risk: None Lifted Index @300 mb: 12.31 C Lifted Index @700 mb: 6.18 C Showalter Index: 1.06 C Risk: Showers probable Total Totals Index: 52.80 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 28.50 C Cross Totals Index: 24.30 C K Index: 29.30 Risk: 40-60 % chance of thunderstorms Sweat Index: 285.35 Risk: None Energy Index: 0.13 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 10.11 J/kg Max Up Vert Vel: 4.50 m/s Conv Inhibition (B-): 46309.94 J/kg Cap Strength: 10.15 C Lift Cond Lev (LCL): 846.37 mb = 1494.51 m = 4903.19 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 311 at 19 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 1006 74 220 5 3.2 3.8 | 146 20 -11.2 16.5 1 1000 124 220 5 3.2 3.8 | 146 20 -11.2 16.5 2 925 769 230 9 6.9 5.8 | 158 20 -7.5 18.4 3 850 1460 250 15 14.1 5.1 | 179 18 -0.3 17.8 4 700 3027 285 29 28.0 -7.5 | 249 15 13.6 5.1 5 500 5600 290 38 35.7 -13.0 | 271 21 21.3 -0.4 6 400 7200 290 36 33.8 -12.3 | 269 19 19.4 0.3 7 300 9140 290 35 32.9 -12.0 | 268 18 18.5 0.7 8 250 10310 295 33 29.9 -13.9 | 275 16 15.5 -1.3 9 227 10911 300 33 28.6 -16.5 | 285 15 14.1 -3.9 10 200 11700 305 31 25.4 -17.8 | 295 12 11.0 -5.2 11 150 13540 310 29 22.2 -18.6 | 308 10 7.8 -6.0 12 100 16130 315 23 16.3 -16.3 | 333 4 1.8 -3.6 13 70 18430 305 19 15.6 -10.9 | 213 2 1.1 1.7 14 50 20600 290 17 16.0 -5.8 | 193 7 1.5 6.8 15 30 23910 275 11 11.0 -1.0 | 163 12 -3.5 11.7 Wind Parameters Mean winds (0-6000m): 281.2 at 25.6 knts Storm direction: 311.2 at 19.2 knts Shear (0-3000m) pos: 4.7 neg: 0.0 tot: 4.7 10-3/s Storm rel Dir Shear (0-3000m): 104.2 deg Storm rel helicity (0-3000m) pos: 136.8 neg: 0.0 tot: 136.8 m^2/s^2 ave: 45.6 10^-3 m/s^2 rel: 0.98 Storm rel vorticity (0-3000m) horiz: 5.3 stream: 5.2 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.15 Bulk Shear: 68.77 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 ------------------------------------------------------------------------------- 500 224 6 149 20| 3.0 0.0 3.0| 15.3 0.0 15.3 30.6 1.00| 3.0 3.0 1000 230 8 155 20| 3.7 0.0 3.7| 37.6 0.0 37.6 37.6 0.99| 3.7 3.7 1500 238 10 161 19| 4.2 0.0 4.2| 62.7 0.0 62.7 41.8 0.97| 4.4 4.2 2000 246 12 169 18| 4.4 0.0 4.4| 87.2 0.0 87.2 43.6 0.97| 4.7 4.6 2500 255 14 177 16| 4.6 0.0 4.6|112.2 0.0 112.2 44.9 0.97| 5.1 5.0 3000 264 16 187 14| 4.7 0.0 4.7|136.8 0.0 136.8 45.6 0.98| 5.3 5.2 4000 273 20 205 13| 4.0 0.0 4.0|148.1 0.0 148.1 37.0 0.95| 4.5 4.3 5000 278 23 221 13| 3.6 0.0 3.6|160.2 0.0 160.2 32.0 0.93| 4.0 3.7 6000 281 26 234 13| 3.1 0.0 3.1|166.9 -0.9 166.0 27.7 0.90| 3.5 3.1 Wrote GIF file: /home/apache/climate/data/raob//U9231/skewt/U9231.skewt.20250425.12.gif