UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041712.upa.cvt Date: 1200Z 17 APR 25 Searching for U6781... Searching the city database file for: U6781 ... Date:1200Z 17 APR 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 197 200 9 SFC 994 249 19.2 4.2 37 15.0 11.2 200 9 292.9 293.8 284.5 307.9 5.20 2 925 858 12.4 1.4 47 11.0 6.9 205 17 292.0 292.8 283.5 305.3 4.57 3 882 1255 8.4 -0.6 53 9.0 4.1 219 19 291.8 292.6 283.0 303.9 4.15 4 850 1561 8.4 0.4 57 8.0 4.5 230 21 294.9 295.8 284.8 308.6 4.63 5 848 1580 8.2 1.2 61 7.0 4.7 230 21 294.9 295.8 285.1 309.4 4.92 6 700 3132 -2.7 -6.3 76 3.6 -4.2 245 17 299.5 300.1 285.2 309.8 3.41 7 687 3280 -3.7 -7.3 76 3.6 -5.1 246 17 300.0 300.6 285.2 309.8 3.21 8 651 3704 -4.9 -9.9 68 5.0 -6.8 249 17 303.3 303.8 286.0 311.9 2.77 9 593 4429 -11.3 -16.0 68 4.7 -12.8 255 16 304.1 304.4 285.3 309.9 1.85 10 513 5528 -16.9 -22.9 60 6.0 -18.3 263 15 310.1 310.4 286.8 314.1 1.18 11 500 5720 -18.9 -24.9 59 6.0 -20.2 265 15 310.0 310.2 286.5 313.4 1.01 12 400 7340 -31.3 -37.3 55 6.0 -32.0 270 13 314.3 314.4 287.3 315.7 0.39 13 300 9310 -47.7 -53.7 50 6.0 -47.9 250 15 318.1 318.1 288.2 318.5 0.09 14 288 9580 -50.1 -56.1 49 6.0 -50.3 257 16 318.4 318.4 288.3 318.7 0.07 15 250 10500 -54.3 -62.3 37 8.0 -54.5 280 21 325.3 325.3 290.4 325.5 0.04 16 242 10707 -55.3 -63.3 36 8.0 -55.4 275 21 326.9 326.9 290.9 327.0 0.03 17 231 11002 -55.7 -63.7 36 8.0 -55.8 274 21 330.6 330.7 291.9 330.8 0.03 18 200 11920 -53.7 -64.7 25 11.0 -53.9 270 23 347.7 347.7 296.1 347.9 0.03 19 163 13241 -51.3 -65.3 17 14.0 -51.7 291 29 372.7 372.7 301.1 372.9 0.04 20 150 13780 -52.1 -68.1 13 16.0 -52.5 300 31 380.3 380.3 302.3 380.4 0.03 21 131 14650 -56.5 -73.5 10 17.0 -56.8 302 26 387.5 387.5 303.4 387.5 0.01 22 100 16360 -58.1 -77.1 7 19.0 -58.5 305 17 415.5 415.5 307.2 415.5 0.01 23 70 18610 -57.1 -78.1 5 21.0 -57.7 320 15 462.2 462.2 312.0 462.3 0.01 24 50 20750 -56.5 -78.5 5 22.0 -57.3 300 5 510.3 510.3 315.7 510.4 0.02 25 30 24020 -53.3 -76.3 4 23.0 -55.1 75 23 599.3 599.3 320.6 599.6 0.04 26 20 26630 -53.5 -76.5 4 23.0 -55.9 90 31 672.4 672.4 323.5 672.9 0.06 27 11 30497 -51.1 -74.1 5 23.0 -55.6 806.5 806.6 327.4 808.0 0.15 TRP 242 10707 -55.3 -63.3 36 8.0 -55.4 275 21 326.9 326.9 290.9 327.0 0.03 WND Sounding variables and indices 1000-500 mb thick: 5523.00 m Freezing level: 736.66 mb = 2747.67 m = 9014.55 ft Wetbulb zero: 769.78 mb = 2363.34 m = 7753.64 ft Precipitable water: 0.72 inches Sfc-500 mean rel hum: 62.87 % Est. max temperature: 21.39 C = 70.51 F Sfc-Lift cond lev (LCL): 794.29 mb = 2109.79 m = 6921.79 ft T: 4.48 C 700-500 lapse rate: 6.26 C/km ThetaE index: 4.01 C Layer 925.0- 850.0 mb Conv cond level (CCL): 712.00 mb = 2994.54 m = 9824.50 ft Mean mixing ratio: 4.74 g/kg Conv temperature: 25.44 C = 77.79 F Cap Strength: 6.46 C Lifted Index: 5.98 C Risk: None Lifted Index @300 mb: 8.76 C Lifted Index @700 mb: 3.43 C Showalter Index: 4.31 C Risk: None Total Totals Index: 46.60 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 27.30 C Cross Totals Index: 19.30 C K Index: 24.10 Risk: 20-40 % chance of thunderstorms Sweat Index: 158.50 Risk: None Energy Index: 0.98 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 4.66 J/kg Max Up Vert Vel: 3.05 m/s Conv Inhibition (B-): 55844.46 J/kg Cap Strength: 6.34 C Lift Cond Lev (LCL): 785.26 mb = 2202.27 m = 7225.20 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 272 at 13 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 ---------------------------------------------------------- 0 994 249 200 9 3.1 8.5 | 133 13 -9.4 8.9 1 925 858 205 17 7.2 15.4 | 161 17 -5.3 15.8 2 850 1561 230 21 16.1 13.5 | 194 14 3.6 13.9 3 700 3132 245 17 15.4 7.2 | 201 8 2.9 7.6 4 500 5720 265 15 14.9 1.3 | 234 3 2.4 1.7 5 400 7340 270 13 13.0 -0.0 | 228 1 0.5 0.4 6 300 9310 250 15 14.1 5.1 | 196 6 1.6 5.6 7 250 10500 280 21 20.7 -3.6 | 291 9 8.2 -3.2 8 242 10707 275 21 20.9 -1.8 | 279 9 8.4 -1.4 9 200 11920 270 23 23.0 -0.0 | 268 10 10.5 0.4 10 150 13780 300 31 26.8 -15.5 | 316 21 14.3 -15.1 11 100 16360 305 17 13.9 -9.8 | 351 9 1.4 -9.3 12 70 18610 320 15 9.6 -11.5 | 15 11 -2.9 -11.1 13 50 20750 300 5 4.3 -2.5 | 76 8 -8.2 -2.1 14 30 24020 75 23 -22.2 -6.0 | 81 35 -34.7 -5.5 15 20 26630 90 31 -31.0 0.0 | 91 44 -43.5 0.4 Wind Parameters Mean winds (0-6000m): 242.0 at 16.7 knts Storm direction: 272.0 at 12.5 knts Shear (0-3000m) pos: 2.1 neg: 0.0 tot: 2.1 10-3/s Storm rel Dir Shear (0-3000m): 68.4 deg Storm rel helicity (0-3000m) pos: 68.3 neg: 0.0 tot: 68.3 m^2/s^2 ave: 22.8 10^-3 m/s^2 rel: 0.73 Storm rel vorticity (0-3000m) horiz: 4.1 stream: 3.0 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.32 Bulk Shear: 14.75 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 ------------------------------------------------------------------------------- 500 203 12 147 14| 6.8 0.0 6.8| 22.3 0.0 22.3 44.7 0.89| 6.8 6.1 1000 208 15 158 15| 5.7 0.0 5.7| 47.6 0.0 47.6 47.6 0.92| 6.7 6.1 1500 216 17 169 14| 4.7 0.0 4.7| 64.9 0.0 64.9 43.2 0.90| 6.2 5.6 2000 221 18 176 14| 3.4 0.0 3.4| 66.7 0.0 66.7 33.3 0.84| 5.2 4.3 2500 225 18 180 13| 2.6 0.0 2.6| 67.7 0.0 67.7 27.1 0.78| 4.5 3.5 3000 228 18 183 12| 2.1 0.0 2.1| 68.3 0.0 68.3 22.8 0.73| 4.1 3.0 4000 233 17 187 11| 1.7 0.0 1.7| 70.3 0.0 70.3 17.6 0.71| 3.4 2.4 5000 238 17 191 10| 1.4 0.0 1.4| 71.7 0.0 71.7 14.3 0.69| 2.9 2.0 6000 242 17 195 9| 1.2 0.0 1.2| 72.2 0.0 72.2 12.0 0.67| 2.6 1.7 Wrote GIF file: /home/apache/climate/data/raob//U6781/skewt/U6781.skewt.20250417.12.gif