UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025050112.upa.cvt Date: 1200Z 1 MAY 25 Searching for U9231... Searching the city database file for: U9231 ... Date:1200Z 1 MAY 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 1011 73 15.2 -4.8 25 20.0 6.5 220 5 287.4 287.9 279.1 295.2 2.64 1 1000 165 14.8 -5.2 25 20.0 6.2 225 5 288.0 288.4 279.3 295.5 2.59 2 925 818 8.4 -8.6 29 17.0 1.8 245 11 287.9 288.3 278.7 294.3 2.15 3 850 1507 2.0 -10.0 41 12.0 -2.3 255 17 288.2 288.6 278.9 294.5 2.10 4 749 2509 -7.9 -12.9 67 5.0 -9.4 265 24 288.1 288.4 278.5 293.7 1.89 5 700 3031 -12.1 -14.1 85 2.0 -12.7 270 27 289.1 289.4 278.9 294.6 1.83 6 653 3559 -15.5 -16.9 89 1.4 -15.9 272 30 291.0 291.3 279.4 295.8 1.56 7 592 4296 -17.5 -22.5 65 5.0 -18.6 275 33 297.0 297.2 281.5 300.4 1.06 8 500 5540 -25.9 -31.9 57 6.0 -26.8 280 40 301.5 301.6 282.7 303.2 0.53 9 400 7110 -37.5 -43.5 53 6.0 -37.9 270 54 306.3 306.3 284.2 307.0 0.20 10 375 7554 -42.5 -50.5 41 8.0 -42.8 271 58 305.3 305.4 283.7 305.7 0.10 11 311 8797 -52.7 -62.4 30 9.7 -52.9 275 68 307.8 307.8 284.5 307.9 0.03 12 300 9030 -54.7 -64.7 28 10.0 -54.8 275 64 308.2 308.2 284.7 308.3 0.02 13 284 9379 -56.3 -66.3 27 10.0 -56.4 275 60 310.8 310.8 285.7 310.9 0.02 14 257 10014 -55.1 -66.1 24 11.0 -55.3 275 51 321.6 321.6 289.3 321.7 0.02 15 250 10190 -54.5 -65.5 25 11.0 -54.7 275 48 325.0 325.0 290.3 325.1 0.02 16 200 11640 -51.1 -69.1 10 18.0 -51.5 280 42 351.8 351.9 297.0 351.9 0.02 17 189 12007 -50.5 -69.5 9 19.0 -51.0 279 40 358.6 358.6 298.4 358.6 0.02 18 150 13510 -50.1 -71.1 7 21.0 -50.7 275 33 383.7 383.7 302.9 383.8 0.02 19 100 16160 -49.7 -71.7 6 22.0 -50.6 270 25 431.7 431.7 309.0 431.8 0.02 20 90 16850 -49.9 -71.9 6 22.0 -50.9 271 23 444.5 444.5 310.3 444.6 0.03 21 70 18490 -50.9 -72.9 6 22.0 -52.0 275 19 475.5 475.5 313.1 475.7 0.03 22 50 20670 -51.5 -73.5 6 22.0 -52.9 315 11 522.1 522.1 316.5 522.3 0.04 23 34 23168 -51.9 -73.9 5 22.0 -53.8 4 9 581.9 582.0 319.8 582.3 0.05 24 30 23980 -50.7 -72.7 6 22.0 -53.0 20 9 606.4 606.4 320.9 606.9 0.07 25 20 26640 -47.9 -71.9 5 24.0 -51.8 50 11 689.6 689.6 324.1 690.5 0.12 26 12 30046 -43.1 -67.1 5 24.0 -50.5 815.0 815.2 327.7 818.9 0.38 TRP 284 9379 -56.3 -66.3 27 10.0 -56.4 275 60 310.8 310.8 285.7 310.9 0.02 WND 311 8797 -52.7 -62.4 30 9.7 -52.9 275 68 307.8 307.8 284.5 307.9 0.03 Sounding variables and indices 1000-500 mb thick: 5375.00 m Freezing level: 829.60 mb = 1709.44 m = 5608.32 ft Wetbulb zero: 891.90 mb = 1114.95 m = 3657.93 ft Precipitable water: 0.38 inches Sfc-500 mean rel hum: 58.49 % Est. max temperature: 15.95 C = 60.71 F Sfc-Lift cond lev (LCL): 746.51 mb = 2534.80 m = 8316.16 ft T: -8.11 C 700-500 lapse rate: 5.50 C/km ThetaE index: 1.28 C Layer 925.0- 850.0 mb Conv cond level (CCL): 716.17 mb = 2854.78 m = 9365.97 ft Mean mixing ratio: 2.37 g/kg Conv temperature: 16.52 C = 61.73 F Cap Strength: 4.75 C Lifted Index: 6.72 C Risk: None Lifted Index @300 mb: 9.56 C Lifted Index @700 mb: 0.42 C Showalter Index: 7.01 C Risk: None Total Totals Index: 43.80 C Risk: None Vertical Totals Index: 27.90 C Cross Totals Index: 15.90 C K Index: 15.90 Risk: < 20 % chance of thunderstorms Sweat Index: 74.00 Risk: None Energy Index: 1.77 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 0.64 J/kg Max Up Vert Vel: 1.13 m/s Conv Inhibition (B-): 62513.98 J/kg Cap Strength: 6.60 C Lift Cond Lev (LCL): 725.06 mb = 2759.60 m = 9053.71 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 301 at 20 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 1011 73 220 5 3.2 3.8 | 136 20 -13.7 14.1 1 1000 165 225 5 3.5 3.5 | 136 19 -13.3 13.8 2 925 818 245 11 10.0 4.6 | 155 16 -6.9 14.9 3 850 1507 255 17 16.4 4.4 | 178 15 -0.5 14.6 4 700 3031 270 27 27.0 -0.0 | 225 14 10.1 10.2 5 500 5540 280 40 39.4 -6.9 | 262 23 22.5 3.3 6 400 7110 270 54 54.0 -0.0 | 255 39 37.1 10.2 7 311 8797 275 68 67.7 -5.9 | 265 51 50.9 4.3 8 300 9030 275 64 63.8 -5.6 | 264 47 46.9 4.7 9 284 9379 275 60 59.8 -5.2 | 263 43 42.9 5.0 10 250 10190 275 48 47.8 -4.2 | 259 32 30.9 6.0 11 200 11640 280 42 41.4 -7.3 | 263 25 24.5 2.9 12 150 13510 275 33 32.9 -2.9 | 245 18 16.0 7.4 13 100 16160 270 25 25.0 -0.0 | 218 13 8.1 10.2 14 70 18490 275 19 18.9 -1.7 | 193 9 2.0 8.6 15 50 20670 315 11 7.8 -7.8 | 105 9 -9.1 2.5 16 30 23980 20 9 -3.1 -8.5 | 95 20 -20.0 1.8 17 20 26640 50 11 -8.4 -7.1 | 97 26 -25.3 3.2 Wind Parameters Mean winds (0-6000m): 271.2 at 26.3 knts Storm direction: 301.2 at 19.7 knts Shear (0-3000m) pos: 4.2 neg: 0.0 tot: 4.2 10-3/s Storm rel Dir Shear (0-3000m): 89.7 deg Storm rel helicity (0-3000m) pos: 98.1 neg: 0.0 tot: 98.1 m^2/s^2 ave: 32.7 10^-3 m/s^2 rel: 0.95 Storm rel vorticity (0-3000m) horiz: 4.3 stream: 4.1 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.01 Bulk Shear: 62.36 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 ------------------------------------------------------------------------------- 500 231 7 141 19| 4.4 0.0 4.4| 18.5 0.0 18.5 37.0 0.85| 4.6 3.9 1000 241 9 148 17| 4.7 0.0 4.7| 38.2 0.0 38.2 38.2 0.88| 4.8 4.3 1500 247 11 155 16| 4.7 0.0 4.7| 56.0 0.0 56.0 37.4 0.91| 4.8 4.4 2000 251 13 162 15| 4.4 0.0 4.4| 69.8 0.0 69.8 34.9 0.93| 4.5 4.2 2500 255 15 170 14| 4.3 0.0 4.3| 83.9 0.0 83.9 33.5 0.94| 4.4 4.2 3000 259 17 178 13| 4.2 0.0 4.2| 98.1 0.0 98.1 32.7 0.95| 4.3 4.1 4000 264 20 194 13| 3.8 0.0 3.8|118.2 0.0 118.2 29.5 0.93| 4.0 3.7 5000 268 23 210 13| 3.6 0.0 3.6|140.7 0.0 140.7 28.1 0.91| 3.8 3.4 6000 271 26 224 14| 3.3 0.4 3.7|152.1 -6.1 145.9 24.3 0.77| 3.8 2.9 Wrote GIF file: /home/apache/climate/data/raob//U9231/skewt/U9231.skewt.20250501.12.gif