UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041700.upa.cvt Date: 0000Z 17 APR 25 Searching for U4641... Searching the city database file for: U4641 ... Date:0000Z 17 APR 25 Station: U4641 WMO ident: 24641 Latitude: 63.77 Longitude: 121.62 ------------------------------------------------------------------------------- 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 89 190 1 SFC 997 113 -3.9 -14.9 42 11.0 -6.7 190 1 269.5 269.7 266.6 272.9 1.20 2 975 288 -5.3 -19.3 32 14.0 -8.4 203 5 269.8 269.9 266.2 272.2 0.85 3 961 402 -3.9 -18.9 30 15.0 -7.4 212 8 272.3 272.5 268.0 274.9 0.89 4 925 702 -6.7 -20.7 32 14.0 -9.7 235 15 272.5 272.6 267.8 274.8 0.79 5 850 1355 -12.5 -23.5 39 11.0 -14.5 245 17 273.1 273.2 268.0 275.0 0.68 6 776 2041 -18.7 -26.7 49 8.0 -19.9 257 15 273.6 273.7 268.2 275.2 0.55 7 766 2138 -19.5 -28.5 45 9.0 -20.7 258 15 273.7 273.8 268.1 275.2 0.48 8 700 2802 -23.1 -38.1 24 15.0 -24.5 270 13 276.9 276.9 269.7 277.6 0.20 9 601 3903 -29.7 -47.7 16 18.0 -30.7 286 19 281.6 281.6 272.2 281.9 0.09 10 556 4455 -31.9 -50.9 13 19.0 -32.9 294 23 285.3 285.4 274.3 285.6 0.06 11 500 5200 -34.7 -52.7 14 18.0 -35.5 305 27 290.7 290.7 277.1 290.9 0.06 12 478 5513 -35.5 -52.5 16 17.0 -36.3 305 30 293.5 293.5 278.5 293.7 0.06 13 400 6730 -44.1 -56.1 25 12.0 -44.5 305 40 297.7 297.7 280.4 297.8 0.05 14 353 7557 -49.9 -59.9 30 10.0 -50.1 302 40 300.7 300.7 281.7 300.8 0.03 15 337 7860 -50.1 -60.1 30 10.0 -50.3 301 40 304.4 304.4 283.2 304.6 0.03 16 330 7996 -50.9 -60.9 30 10.0 -51.1 300 40 305.2 305.2 283.5 305.3 0.03 17 323 8136 -51.1 -61.1 29 10.0 -51.3 296 40 306.8 306.8 284.1 306.9 0.03 18 302 8576 -47.5 -59.5 24 12.0 -47.9 281 38 317.8 317.8 288.1 318.0 0.04 19 300 8620 -47.7 -59.7 24 12.0 -48.0 280 38 318.1 318.1 288.2 318.3 0.04 20 274 9221 -49.1 -63.1 18 14.0 -49.4 268 36 324.5 324.5 290.2 324.6 0.03 21 250 9830 -47.1 -64.1 13 17.0 -47.6 255 33 336.0 336.0 293.3 336.2 0.03 22 200 11310 -45.5 -68.5 6 23.0 -46.3 240 31 360.7 360.7 298.8 360.8 0.02 23 194 11512 -44.9 -68.9 5 24.0 -45.7 239 31 364.8 364.8 299.7 364.9 0.02 24 150 13220 -45.1 -71.1 4 26.0 -46.2 235 33 392.3 392.3 304.2 392.4 0.02 25 132 14069 -47.7 -73.7 3 26.0 -48.6 402.3 402.3 305.5 402.4 0.01 26 118 14812 -46.1 -72.1 4 26.0 -47.3 418.4 418.4 307.5 418.5 0.02 27 100 15906 -49.1 -74.1 4 25.0 -50.1 432.9 432.9 309.1 432.9 0.02 TRP 330 7996 -50.9 -60.9 30 10.0 -51.1 300 40 305.2 305.2 283.5 305.3 0.03 WND Sounding variables and indices 1000-500 mb thick: 5111.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.09 inches Sfc-500 mean rel hum: 27.35 % Est. max temperature: -0.31 C = 31.44 F Sfc-Lift cond lev (LCL): 837.39 mb = 1467.65 m = 4815.06 ft T: -13.52 C 700-500 lapse rate: 4.84 C/km ThetaE index: 0.63 C Layer 975.0- 961.0 mb Conv cond level (CCL): 704.64 mb = 2753.30 m = 9033.02 ft Mean mixing ratio: 0.87 g/kg Conv temperature: 3.29 C = 37.92 F Cap Strength: 9.92 C Lifted Index: 13.83 C Risk: None Lifted Index @300 mb: 31.15 C Lifted Index @700 mb: 4.04 C Showalter Index: 13.15 C Risk: None Total Totals Index: 33.40 C Risk: None Vertical Totals Index: 22.20 C Cross Totals Index: 11.20 C K Index: -16.30 Risk: None Sweat Index: 194.25 Risk: None Energy Index: 3.27 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 15.61 J/kg Max Up Vert Vel: 5.59 m/s Conv Inhibition (B-): 20469.96 J/kg Cap Strength: 13.09 C Lift Cond Lev (LCL): 759.96 mb = 2196.21 m = 7205.33 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 313 at 14 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 ---------------------------------------------------------- 0 997 113 190 1 0.2 1.0 | 136 15 -10.2 10.7 1 925 702 235 15 12.3 8.6 | 186 18 1.9 18.3 2 850 1355 245 17 15.4 7.2 | 196 18 5.0 16.9 3 700 2802 270 13 13.0 -0.0 | 195 10 2.6 9.7 4 500 5200 305 27 22.1 -15.5 | 296 13 11.7 -5.8 5 400 6730 305 40 32.8 -22.9 | 301 26 22.4 -13.2 6 330 7996 300 40 34.6 -20.0 | 293 26 24.2 -10.3 7 300 8620 280 38 37.4 -6.6 | 263 27 27.0 3.1 8 250 9830 255 33 31.9 8.5 | 230 28 21.5 18.3 9 200 11310 240 31 26.8 15.5 | 213 30 16.4 25.2 10 150 13220 235 33 27.0 18.9 | 210 33 16.6 28.6 Wind Parameters Mean winds (0-6000m): 283.0 at 19.0 knts Storm direction: 313.0 at 14.2 knts Shear (0-3000m) pos: 2.5 neg: 0.0 tot: 2.5 10-3/s Storm rel Dir Shear (0-3000m): 70.7 deg Storm rel helicity (0-3000m) pos: 91.5 neg: -1.6 tot: 89.9 m^2/s^2 ave: 30.0 10^-3 m/s^2 rel: 0.70 Storm rel vorticity (0-3000m) horiz: 4.9 stream: 3.5 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.49 Bulk Shear: 31.91 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 ------------------------------------------------------------------------------- 500 233 7 160 15| 12.5 0.0 12.5| 55.4 0.0 55.4 110.8 0.95| 13.3 12.6 1000 236 11 176 16| 8.1 0.0 8.1| 78.4 0.0 78.4 78.4 0.96| 9.1 8.8 1500 240 13 183 16| 5.4 0.0 5.4| 85.6 0.0 85.6 57.1 0.91| 7.0 6.4 2000 244 14 187 16| 3.7 0.0 3.7| 86.3 -0.0 86.3 43.2 0.81| 6.0 4.8 2500 247 14 189 15| 2.7 0.0 2.7| 86.3 -1.1 85.2 34.1 0.72| 5.3 3.8 3000 251 14 190 14| 2.5 0.0 2.5| 91.5 -1.6 89.9 30.0 0.70| 4.9 3.5 4000 261 15 199 13| 2.7 0.0 2.7|109.7 -1.6 108.0 27.0 0.76| 4.6 3.5 5000 274 17 215 11| 2.8 0.0 2.8|131.9 -1.6 130.3 26.1 0.79| 4.6 3.6 6000 283 19 236 10| 2.7 0.4 3.0|138.3 -1.6 136.7 22.8 0.70| 4.5 3.2 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20250417.00.gif