UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025103112.upa.cvt Date: 1200Z 31 OCT 25 Searching for U6781... Searching the city database file for: U6781 ... Date:1200Z 31 OCT 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 20 SFC 973 245 7.2 5.7 90 1.5 6.4 250 3 282.6 283.6 280.8 298.9 5.90 2 925 659 3.4 1.4 87 2.0 2.5 245 13 282.8 283.6 279.3 295.6 4.57 3 884 1026 0.4 -1.3 88 1.7 -0.3 245 12 283.4 284.0 278.8 294.4 3.93 4 850 1340 -1.1 -2.6 90 1.5 -1.7 245 11 285.0 285.6 279.3 295.6 3.71 5 785 1972 -3.7 -6.3 82 2.6 -4.7 247 15 288.8 289.3 280.3 297.6 3.04 6 700 2870 -8.7 -10.4 87 1.7 -9.3 250 21 292.9 293.3 281.4 300.3 2.47 7 593 4134 -16.7 -20.8 70 4.1 -17.7 260 23 297.8 298.0 282.0 301.7 1.23 8 500 5390 -26.5 -32.5 57 6.0 -27.3 270 25 300.7 300.8 282.3 302.4 0.50 9 400 6960 -39.1 -43.7 62 4.6 -39.4 245 31 304.2 304.2 283.4 304.9 0.20 10 382 7274 -41.7 -46.4 60 4.7 -41.9 249 27 304.8 304.8 283.5 305.3 0.16 11 373 7436 -41.5 -46.1 61 4.6 -41.8 251 25 307.1 307.2 284.5 307.7 0.16 12 346 7945 -42.7 -48.7 52 6.0 -43.0 257 19 312.2 312.2 286.3 312.7 0.13 13 312 8639 -45.7 -53.7 40 8.0 -46.0 265 11 317.4 317.4 288.0 317.7 0.08 14 300 8900 -45.7 -54.7 36 9.0 -46.0 285 15 320.9 321.0 289.1 321.2 0.08 15 250 10110 -48.3 -60.3 24 12.0 -48.7 305 17 334.3 334.3 292.9 334.4 0.05 16 232 10600 -48.7 -62.7 18 14.0 -49.1 305 20 340.9 340.9 294.6 341.0 0.04 17 200 11570 -50.1 -64.1 18 14.0 -50.5 305 25 353.4 353.4 297.4 353.6 0.03 18 150 13440 -54.3 -69.3 14 15.0 -54.6 300 23 376.5 376.5 301.7 376.6 0.02 19 100 16010 -58.9 -74.9 11 16.0 -59.2 285 25 413.9 413.9 307.0 414.0 0.01 20 70 18230 -62.1 -78.1 10 16.0 -62.4 265 27 451.5 451.5 311.0 451.6 0.01 21 52 20060 -65.3 -80.3 11 15.0 -65.5 265 31 484.1 484.1 313.8 484.2 0.01 22 50 20300 -64.5 -79.5 11 15.0 -64.8 265 31 491.5 491.5 314.4 491.6 0.01 23 43 21222 -64.3 -80.3 9 16.0 -64.7 513.6 513.6 315.9 513.7 0.01 TRP 312 8639 -45.7 -53.7 40 8.0 -46.0 265 11 317.4 317.4 288.0 317.7 0.08 WND Sounding variables and indices 1000-500 mb thick: 5370.00 m Freezing level: 874.93 mb = 1109.39 m = 3639.70 ft Wetbulb zero: 888.84 mb = 981.42 m = 3219.86 ft Precipitable water: 0.54 inches Sfc-500 mean rel hum: 78.77 % Est. max temperature: 11.14 C = 52.05 F Sfc-Lift cond lev (LCL): 950.90 mb = 433.21 m = 1421.27 ft T: 5.47 C 700-500 lapse rate: 7.06 C/km ThetaE index: 4.44 C Layer 925.0- 850.0 mb Conv cond level (CCL): 895.05 mb = 925.10 m = 3035.07 ft Mean mixing ratio: 4.67 g/kg Conv temperature: 7.85 C = 46.13 F Cap Strength: 4.67 C Lifted Index: 5.30 C Risk: None Lifted Index @300 mb: 17.74 C Lifted Index @700 mb: 3.09 C Showalter Index: 5.62 C Risk: None Total Totals Index: 49.30 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 25.40 C Cross Totals Index: 23.90 C K Index: 21.10 Risk: 20-40 % chance of thunderstorms Sweat Index: 53.00 Risk: None Energy Index: 1.43 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 4.04 J/kg Max Up Vert Vel: 2.84 m/s Conv Inhibition (B-): 29563.58 J/kg Cap Strength: 5.21 C Lift Cond Lev (LCL): 898.46 mb = 894.38 m = 2934.29 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 287 at 15 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 ---------------------------------------------------------- 0 973 245 250 3 2.8 1.0 | 116 12 -11.2 5.4 1 925 659 245 13 11.8 5.5 | 167 10 -2.3 9.9 2 850 1340 245 11 10.0 4.6 | 156 10 -4.1 9.0 3 700 2870 250 21 19.7 7.2 | 206 13 5.7 11.5 4 500 5390 270 25 25.0 -0.0 | 248 12 10.9 4.4 5 400 6960 245 31 28.1 13.1 | 219 22 14.0 17.5 6 312 8639 265 11 11.0 1.0 | 150 6 -3.1 5.3 7 300 8900 285 15 14.5 -3.9 | 221 1 0.4 0.5 8 250 10110 305 17 13.9 -9.8 | 1 5 -0.1 -5.4 9 200 11570 305 25 20.5 -14.3 | 327 12 6.4 -10.0 10 150 13440 300 23 19.9 -11.5 | 321 9 5.9 -7.1 11 100 16010 285 25 24.1 -6.5 | 282 10 10.1 -2.1 12 70 18230 265 27 26.9 2.4 | 242 14 12.8 6.7 13 50 20300 265 31 30.9 2.7 | 247 18 16.8 7.1 Wind Parameters Mean winds (0-6000m): 257.2 at 19.6 knts Storm direction: 287.2 at 14.7 knts Shear (0-3000m) pos: 1.8 neg: 1.4 tot: 3.2 10-3/s Storm rel Dir Shear (0-3000m): 96.0 deg Storm rel helicity (0-3000m) pos: 55.5 neg: -4.5 tot: 51.0 m^2/s^2 ave: 17.0 10^-3 m/s^2 rel: 0.79 Storm rel vorticity (0-3000m) horiz: 3.9 stream: 3.1 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.25 Bulk Shear: 16.38 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 ------------------------------------------------------------------------------- 500 246 9 143 10| 0.0 10.0 10.0| 24.7 0.0 24.7 49.4 0.92| 10.1 9.3 1000 245 10 152 10| 0.0 4.3 4.3| 24.7 -3.8 20.8 20.8 0.67| 5.8 3.9 1500 245 11 155 10| 0.8 2.8 3.7| 31.6 -4.5 27.1 18.0 0.70| 4.9 3.4 2000 246 12 162 10| 1.5 2.1 3.6| 40.2 -4.5 35.7 17.9 0.75| 4.5 3.4 2500 247 13 170 10| 1.8 1.7 3.6| 49.1 -4.5 44.6 17.9 0.77| 4.3 3.3 3000 248 15 177 10| 1.8 1.4 3.2| 55.5 -4.5 51.0 17.0 0.79| 3.9 3.1 4000 251 17 189 10| 1.6 1.1 2.7| 66.6 -4.5 62.1 15.5 0.81| 3.4 2.7 5000 255 18 201 10| 1.6 0.9 2.4| 78.0 -4.5 73.5 14.7 0.84| 3.1 2.6 6000 257 20 210 10| 1.3 1.2 2.5| 79.2 -21.0 58.2 9.7 0.57| 3.2 1.8 Wrote GIF file: /home/apache/climate/data/raob//U6781/skewt/U6781.skewt.20251031.12.gif