UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042300.upa.cvt Date: 0000Z 23 APR 25 Searching for U9231... Searching the city database file for: U9231 ... Date:0000Z 23 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 ------------------------------------------------------------------------------- 0 1000 62 210 3 SFC 998 78 5.0 0.8 74 4.2 3.1 210 3 278.3 279.0 276.4 289.5 4.06 2 948 497 3.0 1.7 91 1.3 2.4 217 10 280.4 281.2 278.2 293.0 4.56 3 925 697 3.6 3.1 97 0.5 3.4 220 13 283.0 283.9 280.2 297.4 5.17 4 891 1004 5.8 5.8 100 0.0 5.8 227 17 288.3 289.5 284.1 306.7 6.50 5 850 1391 4.2 3.9 98 0.3 4.1 235 21 290.5 291.6 284.4 307.6 5.96 6 700 2932 -4.9 -5.2 98 0.3 -5.0 255 33 297.1 297.7 284.6 308.2 3.71 7 645 3571 -7.9 -8.4 96 0.5 -8.1 257 34 300.7 301.3 285.4 310.3 3.14 8 525 5138 -18.7 -20.1 89 1.4 -19.1 264 36 305.9 306.2 285.6 310.7 1.48 9 500 5500 -21.5 -23.9 81 2.4 -22.0 265 36 306.8 307.0 285.5 310.5 1.11 10 474 5893 -24.1 -27.0 77 2.9 -24.6 265 38 308.3 308.5 285.8 311.3 0.88 11 400 7110 -33.9 -38.2 65 4.3 -34.3 265 46 310.9 311.0 286.1 312.2 0.35 12 346 8110 -41.1 -47.1 52 6.0 -41.5 265 47 314.3 314.4 287.1 314.9 0.16 13 300 9060 -50.1 -57.1 43 7.0 -50.3 265 48 314.7 314.7 287.1 315.0 0.06 14 286 9368 -52.5 -59.5 43 7.0 -52.7 265 47 315.6 315.6 287.3 315.8 0.04 15 250 10220 -57.5 -65.5 35 8.0 -57.6 265 44 320.6 320.6 288.9 320.7 0.02 16 246 10323 -58.5 -66.5 35 8.0 -58.6 266 43 320.6 320.6 288.9 320.7 0.02 17 218 11086 -60.7 -68.7 34 8.0 -60.8 275 38 328.4 328.4 291.3 328.5 0.02 18 200 11630 -58.5 -67.5 30 9.0 -58.6 280 36 340.1 340.1 294.4 340.2 0.02 19 161 13013 -52.9 -61.9 33 9.0 -53.2 284 34 371.3 371.3 300.8 371.6 0.06 20 150 13470 -53.1 -62.1 33 9.0 -53.4 285 33 378.6 378.6 302.1 378.9 0.06 21 100 16090 -54.1 -63.1 32 9.0 -54.5 290 31 423.2 423.2 308.2 423.6 0.08 22 91 16695 -54.5 -63.5 32 9.0 -54.9 289 30 434.0 434.0 309.3 434.4 0.08 23 70 18380 -53.7 -61.7 37 8.0 -54.2 285 27 469.5 469.5 312.7 470.3 0.14 24 63 19056 -52.3 -60.3 38 8.0 -53.0 282 24 487.0 487.0 314.1 488.0 0.18 25 50 20540 -53.3 -62.3 33 9.0 -54.1 275 19 517.9 517.9 316.2 519.0 0.18 26 36 22653 -53.9 -62.9 32 9.0 -54.9 269 18 567.3 567.4 319.1 568.9 0.22 27 30 23830 -51.5 -60.5 33 9.0 -52.9 265 17 604.2 604.4 320.9 607.0 0.37 28 23 25564 -49.3 -58.3 34 9.0 -51.4 658.4 658.7 323.2 663.6 0.64 TRP 218 11086 -60.7 -68.7 34 8.0 -60.8 275 38 328.4 328.4 291.3 328.5 0.02 WND Sounding variables and indices 1000-500 mb thick: 5438.00 m Freezing level: 780.77 mb = 2102.23 m = 6897.00 ft Wetbulb zero: 782.90 mb = 2043.67 m = 6704.88 ft Precipitable water: 0.84 inches Sfc-500 mean rel hum: 94.03 % Est. max temperature: 17.31 C = 63.16 F Sfc-Lift cond lev (LCL): 935.44 mb = 605.72 m = 1987.25 ft T: 3.33 C 700-500 lapse rate: 6.46 C/km Conv cond level (CCL): 770.31 mb = 2172.31 m = 7126.92 ft Mean mixing ratio: 4.82 g/kg Conv temperature: 20.55 C = 68.99 F Cap Strength: 10.87 C Lifted Index: 11.12 C Risk: None Lifted Index @300 mb: 14.13 C Lifted Index @700 mb: 7.56 C Showalter Index: 2.33 C Risk: Showers probable Total Totals Index: 51.10 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 25.70 C Cross Totals Index: 25.40 C K Index: 29.30 Risk: 40-60 % chance of thunderstorms Sweat Index: 254.30 Risk: None Energy Index: 0.51 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 31.78 J/kg Max Up Vert Vel: 7.97 m/s Conv Inhibition (B-): 49281.73 J/kg Cap Strength: 11.05 C Lift Cond Lev (LCL): 924.54 mb = 701.10 m = 2300.16 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 285 at 21 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 ---------------------------------------------------------- 0 998 78 210 3 1.5 2.6 | 113 21 -19.1 8.0 1 925 697 220 13 8.4 10.0 | 141 20 -12.2 15.3 2 850 1391 235 21 17.2 12.0 | 169 18 -3.4 17.4 3 700 2932 255 33 31.9 8.5 | 219 18 11.3 13.9 4 500 5500 265 36 35.9 3.1 | 241 17 15.3 8.5 5 400 7110 265 46 45.8 4.0 | 250 27 25.2 9.4 6 300 9060 265 48 47.8 4.2 | 251 29 27.2 9.6 7 250 10220 265 44 43.8 3.8 | 248 25 23.3 9.2 8 218 11086 275 38 37.9 -3.3 | 263 17 17.3 2.1 9 200 11630 280 36 35.5 -6.3 | 273 15 14.9 -0.9 10 150 13470 285 33 31.9 -8.5 | 286 12 11.3 -3.2 11 100 16090 290 31 29.1 -10.6 | 301 10 8.6 -5.2 12 70 18380 285 27 26.1 -7.0 | 286 6 5.5 -1.6 13 50 20540 275 19 18.9 -1.7 | 156 4 -1.7 3.7 14 30 23830 265 17 16.9 1.5 | 152 8 -3.6 6.9 Wind Parameters Mean winds (0-6000m): 254.6 at 28.4 knts Storm direction: 284.6 at 21.3 knts Shear (0-3000m) pos: 5.3 neg: 0.0 tot: 5.3 10-3/s Storm rel Dir Shear (0-3000m): 107.6 deg Storm rel helicity (0-3000m) pos: 169.3 neg: 0.0 tot: 169.3 m^2/s^2 ave: 56.4 10^-3 m/s^2 rel: 0.99 Storm rel vorticity (0-3000m) horiz: 6.0 stream: 5.9 10^-3/s Energy-Hel index: 0.03 Bulk Rich Number: 0.45 Bulk Shear: 70.86 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 7 124 20| 8.4 0.0 8.4| 43.0 0.0 43.0 85.9 0.99| 8.4 8.3 1000 222 11 135 19| 7.5 0.0 7.5| 77.4 0.0 77.4 77.4 0.99| 7.7 7.6 1500 228 14 145 18| 6.8 0.0 6.8|105.4 0.0 105.4 70.3 0.99| 7.2 7.1 2000 233 16 154 17| 6.2 0.0 6.2|127.3 0.0 127.3 63.6 0.99| 6.6 6.6 2500 238 19 163 16| 5.8 0.0 5.8|150.3 0.0 150.3 60.1 0.99| 6.3 6.3 3000 242 21 173 15| 5.3 0.0 5.3|169.3 0.0 169.3 56.4 0.99| 6.0 5.9 4000 248 24 187 15| 4.2 0.0 4.2|181.3 0.0 181.3 45.3 0.99| 4.8 4.8 5000 252 27 198 14| 3.5 0.0 3.5|193.6 0.0 193.6 38.7 0.99| 4.1 4.1 6000 255 28 208 15| 3.0 0.3 3.3|205.6 0.0 205.6 34.3 0.94| 3.8 3.6 Wrote GIF file: /home/apache/climate/data/raob//U9231/skewt/U9231.skewt.20250423.00.gif