UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025052612.upa.cvt Date: 1200Z 26 MAY 25 Searching for U6781... Searching the city database file for: U6781 ... Date:1200Z 26 MAY 25 Station: U6781 WMO ident: 26781 Latitude: 54.75 Longitude: 32.07 ------------------------------------------------------------------------------- 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 140 SFC 988 243 17.6 15.2 86 2.4 16.1 135 9 291.8 293.7 289.7 323.1 11.05 2 925 802 13.0 10.2 83 2.8 11.3 165 23 292.6 294.1 287.7 316.8 8.47 3 904 995 11.4 8.3 81 3.1 9.6 168 28 292.9 294.2 287.0 314.7 7.62 4 850 1509 8.8 5.9 82 2.9 7.2 175 40 295.4 296.6 287.2 315.3 6.86 5 771 2309 4.0 1.7 85 2.3 2.8 183 43 298.6 299.6 287.2 315.2 5.62 6 724 2817 -0.7 -2.4 88 1.7 -1.5 187 45 298.8 299.6 286.1 312.1 4.43 7 700 3086 -1.1 -2.6 90 1.5 -1.8 190 46 301.3 302.1 287.1 314.9 4.51 8 695 3143 -1.3 -2.8 90 1.5 -2.0 190 46 301.7 302.5 287.2 315.2 4.48 9 679 3327 -4.3 -6.3 86 2.0 -5.1 190 45 300.3 301.0 285.7 311.0 3.51 10 657 3586 -4.7 -6.6 87 1.9 -5.5 189 44 302.7 303.4 286.6 313.6 3.55 11 500 5660 -22.3 -27.2 64 4.9 -23.2 185 33 305.9 306.0 284.8 308.6 0.82 12 498 5689 -22.5 -27.5 64 5.0 -23.4 306.0 306.1 284.8 308.6 0.80 TRP WND Sounding variables and indices 1000-500 mb thick: 5520.00 m Freezing level: 731.00 mb = 2741.12 m = 8993.06 ft Wetbulb zero: 740.30 mb = 2637.12 m = 8651.86 ft Precipitable water: 1.00 inches Sfc-500 mean rel hum: 81.03 % Est. max temperature: 21.66 C = 70.99 F Sfc-Lift cond lev (LCL): 953.52 mb = 544.49 m = 1786.38 ft T: 15.12 C 700-500 lapse rate: 8.24 C/km ThetaE index: 8.34 C Layer 925.0- 850.0 mb Conv cond level (CCL): 883.54 mb = 1186.10 m = 3891.35 ft Mean mixing ratio: 9.01 g/kg Conv temperature: 19.64 C = 67.36 F Cap Strength: 0.52 C Lifted Index: -4.92 C Risk: Severe thunderstorms probable Lifted Index @700 mb: -0.77 C Showalter Index: -3.22 C Risk: Severe thunderstorms possible Total Totals Index: 59.30 C Risk: Severe Thunderstorms probable Vertical Totals Index: 31.10 C Cross Totals Index: 28.20 C K Index: 35.50 Risk: > 80 % chance of thunderstorms Sweat Index: 389.80 Risk: Showers and thunderstorms possible Energy Index: -1.40 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 324.94 J/kg Max Up Vert Vel: 25.49 m/s Conv Inhibition (B-): 17.01 J/kg Cap Strength: 0.53 C Lift Cond Lev (LCL): 901.00 mb = 1022.82 m = 3355.67 ft Lev Free Conv (LFC): 776.00 mb = 2256.38 m = 7402.75 ft Wind level data Storm motion: 213 at 28 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 ---------------------------------------------------------- 0 988 243 135 9 -6.4 6.4 | 52 28 -21.7 -17.0 1 925 802 165 23 -6.0 22.2 | 87 21 -21.3 -1.1 2 850 1509 175 40 -3.5 39.8 | 131 25 -18.8 16.5 3 700 3086 190 46 8.0 45.3 | 161 23 -7.4 22.0 4 500 5660 185 33 2.9 32.9 | 127 16 -12.5 9.5 Wind Parameters Mean winds (0-6000m): 183.3 at 37.2 knts Storm direction: 213.3 at 27.9 knts Shear (0-3000m) pos: 7.0 neg: 0.0 tot: 7.0 10-3/s Storm rel Dir Shear (0-3000m): 108.0 deg Storm rel helicity (0-3000m) pos: 280.9 neg: -2.3 tot: 278.6 m^2/s^2 ave: 92.9 10^-3 m/s^2 rel: 0.94 Storm rel vorticity (0-3000m) horiz: 8.1 stream: 7.6 10^-3/s Energy-Hel index: 0.49 Bulk Rich Number: 3.99 Bulk Shear: 81.44 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 ------------------------------------------------------------------------------- 500 155 15 66 24| 14.5 0.0 14.5| 89.6 0.0 89.6 179.1 0.93| 14.9 13.8 1000 164 21 83 22| 13.8 0.0 13.8|162.3 0.0 162.3 162.3 0.95| 14.1 13.4 1500 169 27 99 21| 11.9 0.0 11.9|214.2 0.0 214.2 142.8 0.95| 12.3 11.7 2000 173 31 111 20| 9.6 0.0 9.6|239.1 0.0 239.1 119.6 0.95| 10.3 9.8 2500 176 33 120 20| 8.2 0.0 8.2|264.5 0.0 264.5 105.8 0.96| 9.1 8.7 3000 179 36 127 20| 7.0 0.0 7.0|280.9 -2.3 278.6 92.9 0.94| 8.1 7.6 4000 182 37 135 20| 5.2 0.7 5.9|280.9 -24.5 256.4 64.1 0.77| 6.8 5.2 5000 183 37 137 19| 4.2 1.1 5.3|280.9 -45.5 235.4 47.1 0.62| 6.0 3.7 6000 NO DATA | 4.2 1.1 5.3| | Wrote GIF file: /home/apache/climate/data/raob//U6781/skewt/U6781.skewt.20250526.12.gif