UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041912.upa.cvt Date: 1200Z 19 APR 25 Searching for U1946... Searching the city database file for: U1946 ... Date:1200Z 19 APR 25 Station: U1946 WMO ident: 21946 Latitude: 70.62 Longitude: 147.90 ------------------------------------------------------------------------------- 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 1001 46 -1.5 -6.4 69 4.9 -3.1 180 1 271.6 272.0 269.9 278.0 2.36 1 1000 54 -1.3 -7.3 64 6.0 -3.3 180 3 271.9 272.2 269.9 277.9 2.20 2 998 70 0.8 -7.2 55 8.0 -2.0 182 3 274.1 274.5 271.3 280.3 2.23 3 940 550 -0.7 -12.7 40 12.0 -4.3 228 17 277.3 277.6 272.1 281.7 1.53 4 925 678 -1.5 -12.5 43 11.0 -4.8 240 21 277.8 278.0 272.5 282.3 1.58 5 885 1029 -2.5 -11.5 50 9.0 -5.3 243 19 280.3 280.6 274.2 285.4 1.79 6 850 1348 -4.3 -11.3 58 7.0 -6.5 245 17 281.6 282.0 275.2 287.1 1.89 7 700 2853 -12.7 -14.5 86 1.8 -13.2 290 29 288.4 288.7 278.5 293.7 1.77 8 697 2886 -12.9 -14.7 86 1.8 -13.4 290 29 288.6 288.9 278.5 293.8 1.75 9 598 4038 -19.5 -23.0 74 3.5 -20.2 295 33 293.8 294.0 280.0 297.0 1.00 10 500 5340 -29.7 -33.0 73 3.3 -30.1 300 38 296.8 296.9 280.6 298.4 0.47 11 400 6890 -41.5 -45.0 69 3.5 -41.7 320 52 301.1 301.1 282.0 301.7 0.17 12 332 8134 -50.2 -54.0 64 3.8 -50.3 325 73 305.6 305.6 283.8 305.9 0.07 13 300 8790 -54.9 -58.9 61 4.0 -55.0 330 71 308.0 308.0 284.6 308.1 0.05 14 286 9095 -57.5 -61.5 60 4.0 -57.6 329 63 308.5 308.5 284.8 308.6 0.03 15 251 9915 -61.1 -64.9 61 3.8 -61.2 325 42 314.9 314.9 287.1 315.0 0.02 16 250 9940 -61.1 -64.9 61 3.8 -61.2 325 42 315.2 315.2 287.2 315.3 0.02 17 230 10467 -53.3 -57.6 59 4.3 -53.4 314 34 334.7 334.7 293.0 335.0 0.07 18 202 11305 -51.5 -56.0 58 4.5 -51.7 296 22 350.2 350.2 296.8 350.6 0.10 19 200 11370 -51.5 -56.0 58 4.5 -51.7 295 21 351.2 351.2 297.0 351.6 0.10 20 165 12626 -48.9 -54.9 50 6.0 -49.2 288 18 375.4 375.5 301.6 376.0 0.13 21 150 13250 -49.9 -57.9 38 8.0 -50.3 285 17 384.1 384.1 303.0 384.6 0.10 22 149 13293 -50.5 -58.5 38 8.0 -50.9 285 17 383.8 383.8 302.9 384.2 0.10 23 115 14986 -47.7 -59.7 24 12.0 -48.5 288 14 418.5 418.5 307.6 419.0 0.11 24 100 15900 -50.3 -64.3 18 14.0 -51.0 290 13 430.5 430.6 308.9 430.9 0.07 25 70 18230 -50.1 -68.1 10 18.0 -51.2 225 11 477.2 477.2 313.2 477.5 0.06 26 63 18917 -50.5 -69.5 9 19.0 -51.7 241 10 490.9 490.9 314.3 491.2 0.05 27 50 20420 -51.7 -71.7 7 20.0 -53.1 275 9 521.6 521.7 316.4 521.9 0.05 28 46 20963 -50.3 -71.3 7 21.0 -52.0 537.6 537.6 317.4 538.0 0.06 29 35 22738 -52.5 -74.5 5 22.0 -54.2 575.6 575.6 319.5 575.9 0.05 TRP 251 9915 -61.1 -64.9 61 3.8 -61.2 325 42 314.9 314.9 287.1 315.0 0.02 WND 332 8134 -50.2 -54.0 64 3.8 -50.3 325 73 305.6 305.6 283.8 305.9 0.07 Sounding variables and indices 1000-500 mb thick: 5286.00 m Freezing level: Surface below freezing Freezing level: 998.76 mb = 63.92 m = 209.70 ft Freezing level: 967.07 mb = 325.84 m = 1069.01 ft Wetbulb zero: Below ground Precipitable water: 0.33 inches Sfc-500 mean rel hum: 68.71 % Est. max temperature: 8.53 C = 47.36 F Sfc-Lift cond lev (LCL): 926.93 mb = 661.34 m = 2169.72 ft T: -1.40 C 700-500 lapse rate: 6.84 C/km ThetaE index: 0.13 C Layer 1000.0- 998.0 mb Conv cond level (CCL): 661.23 mb = 3281.95 m = 10767.43 ft Mean mixing ratio: 1.78 g/kg Conv temperature: 17.31 C = 63.17 F Cap Strength: 11.77 C Lifted Index: 12.94 C Risk: None Lifted Index @300 mb: 18.67 C Lifted Index @700 mb: 8.73 C Showalter Index: 8.72 C Risk: None Total Totals Index: 43.80 C Risk: None Vertical Totals Index: 25.40 C Cross Totals Index: 18.40 C K Index: 12.30 Risk: None Sweat Index: 199.39 Risk: None Energy Index: 2.37 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 18.92 J/kg Max Up Vert Vel: 6.15 m/s Conv Inhibition (B-): 42264.78 J/kg Cap Strength: 12.92 C Lift Cond Lev (LCL): 810.33 mb = 1718.48 m = 5637.99 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 317 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 1001 46 180 1 0.0 1.0 | 139 22 -14.3 16.5 1 1000 54 180 3 0.0 3.0 | 142 23 -14.3 18.5 2 925 678 240 21 18.2 10.5 | 188 26 3.9 26.0 3 850 1348 245 17 15.4 7.2 | 183 23 1.1 22.7 4 700 2853 290 29 27.3 -9.9 | 247 14 12.9 5.6 5 500 5340 300 38 32.9 -19.0 | 281 19 18.6 -3.5 6 400 6890 320 52 33.4 -39.8 | 322 31 19.1 -24.3 7 332 8134 325 73 41.9 -59.8 | 328 52 27.6 -44.3 8 300 8790 330 71 35.5 -61.5 | 335 51 21.2 -46.0 9 251 9915 325 42 24.1 -34.4 | 333 21 9.8 -18.9 10 250 9940 325 42 24.1 -34.4 | 333 21 9.8 -18.9 11 200 11370 295 21 19.0 -8.9 | 215 8 4.7 6.6 12 150 13250 285 17 16.4 -4.4 | 191 11 2.1 11.1 13 100 15900 290 13 12.2 -4.4 | 169 11 -2.1 11.1 14 70 18230 225 11 7.8 7.8 | 164 24 -6.5 23.3 15 50 20420 275 9 9.0 -0.8 | 160 16 -5.3 14.7 Wind Parameters Mean winds (0-6000m): 287.3 at 28.1 knts Storm direction: 317.3 at 21.1 knts Shear (0-3000m) pos: 5.2 neg: 0.0 tot: 5.2 10-3/s Storm rel Dir Shear (0-3000m): 110.7 deg Storm rel helicity (0-3000m) pos: 254.0 neg: -14.1 tot: 239.9 m^2/s^2 ave: 80.0 10^-3 m/s^2 rel: 0.81 Storm rel vorticity (0-3000m) horiz: 8.7 stream: 7.0 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 0.21 Bulk Shear: 88.43 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 ------------------------------------------------------------------------------- 500 221 10 161 24| 17.0 0.0 17.0|117.0 0.0 117.0 234.0 0.91| 19.2 17.5 1000 237 15 176 24| 9.4 0.0 9.4|155.0 -6.7 148.3 148.3 0.82| 13.5 11.0 1500 240 16 179 23| 6.3 0.0 6.3|168.2 -14.1 154.1 102.7 0.73| 10.5 7.7 2000 246 17 183 22| 5.8 0.0 5.8|201.0 -14.1 186.8 93.4 0.77| 9.6 7.3 2500 255 19 190 21| 5.5 0.0 5.5|232.3 -14.1 218.2 87.3 0.79| 9.2 7.3 3000 264 20 198 19| 5.2 0.0 5.2|254.0 -14.1 239.9 80.0 0.81| 8.7 7.0 4000 274 23 212 16| 4.3 0.0 4.3|269.6 -14.1 255.4 63.9 0.82| 7.1 5.8 5000 281 26 226 15| 3.9 0.0 3.9|286.7 -14.1 272.6 54.5 0.82| 6.1 5.0 6000 287 28 240 14| 3.9 0.0 3.9|335.7 -14.1 321.6 53.6 0.82| 6.0 4.9 Wrote GIF file: /home/apache/climate/data/raob//U1946/skewt/U1946.skewt.20250419.12.gif