UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041811.upa.cvt Date: 1100Z 18 APR 25 Searching for 04417... Searching the city database file for: 04417 ... Date:1100Z 18 APR 25 Station: 04417 WMO ident: 4417 Latitude: 72.58 Longitude: -38.46 Elevation: 3255.00 ------------------------------------------------------------------------------- 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 26 1 925 696 2 850 1403 3 700 2937 SFC 675 3255 -26.9 -30.7 70 3.8 -27.3 240 18 275.5 275.6 269.2 276.9 0.44 5 671 3297 -24.7 -32.7 47 8.0 -25.6 240 18 278.5 278.5 270.9 279.6 0.36 6 668 3329 -23.7 -32.7 43 9.0 -24.7 241 19 280.0 280.0 271.8 281.1 0.37 7 666 3350 -20.9 -31.9 37 11.0 -22.3 241 19 283.3 283.4 273.8 284.6 0.40 8 664 3372 -20.3 -37.3 20 17.0 -22.2 241 19 284.3 284.3 274.0 285.0 0.23 9 661 3405 -20.3 -43.3 11 23.0 -22.5 242 20 284.6 284.7 274.0 285.1 0.13 10 653 3493 -20.9 -46.9 8 26.0 -23.1 243 20 284.9 285.0 274.1 285.2 0.09 11 645 3582 -21.5 -34.5 30 13.0 -23.1 244 21 285.3 285.3 274.7 286.3 0.32 12 643 3604 -21.3 -22.3 92 1.0 -21.5 244 22 285.8 285.9 276.0 288.8 0.99 13 642 3615 -21.5 -21.9 97 0.4 -21.6 244 22 285.7 285.8 276.0 288.8 1.03 14 536 4908 -24.9 -28.9 69 4.0 -25.5 259 35 296.7 296.8 280.8 298.8 0.65 15 500 5400 -28.3 -31.1 77 2.8 -28.7 265 40 298.5 298.6 281.5 300.4 0.57 16 485 5618 -29.5 -31.5 83 2.0 -29.7 265 41 299.7 299.8 282.0 301.5 0.57 17 459 6010 -31.5 -39.5 45 8.0 -32.2 265 42 301.9 302.0 282.5 302.9 0.27 18 409 6817 -38.1 -44.1 53 6.0 -38.5 265 45 303.5 303.6 283.1 304.2 0.19 19 400 6970 -38.3 -44.3 53 6.0 -38.7 265 45 305.2 305.2 283.7 305.9 0.19 20 379 7339 -39.7 -46.7 47 7.0 -40.1 268 46 308.1 308.1 284.8 308.7 0.15 21 308 8720 -51.3 -56.3 55 5.0 -51.4 279 51 310.7 310.7 285.7 310.9 0.06 22 300 8890 -52.5 -55.5 70 3.0 -52.6 280 52 311.3 311.4 285.9 311.6 0.07 23 281 9311 -55.7 -57.6 79 1.9 -55.8 280 51 312.6 312.6 286.4 312.8 0.06 24 260 9804 -58.5 -64.5 46 6.0 -58.6 280 50 315.5 315.5 287.3 315.6 0.03 25 250 10050 -60.5 -64.0 63 3.5 -60.6 280 50 316.1 316.1 287.5 316.2 0.03 26 245 10175 -61.3 -64.3 67 3.0 -61.3 275 51 316.8 316.8 287.7 316.9 0.03 27 233 10488 -59.3 -77.3 8 18.0 -59.5 274 49 324.4 324.4 290.1 324.4 0.00 28 200 11460 -51.9 -80.9 2 29.0 -52.3 270 44 350.6 350.6 296.8 350.6 0.00 29 198 11525 -50.9 -80.9 2 30.0 -51.4 270 43 353.2 353.2 297.3 353.2 0.00 30 167 12637 -48.9 -80.9 1 32.0 -49.6 267 33 374.1 374.1 301.3 374.2 0.00 31 150 13340 -49.3 -81.3 1 32.0 -50.0 265 26 385.1 385.1 303.1 385.1 0.00 32 100 16020 -46.7 -81.7 1 35.0 -48.0 250 20 437.5 437.5 309.6 437.5 0.01 33 70 18390 -46.1 -82.1 1 36.0 -48.0 255 12 485.8 485.8 313.9 485.8 0.01 34 50 20610 -47.1 -83.1 1 36.0 -49.4 260 8 532.5 532.5 317.1 532.5 0.01 35 34 23160 -47.7 -83.7 1 36.0 -50.6 593.0 593.0 320.3 593.1 0.01 TRP 245 10175 -61.3 -64.3 67 3.0 -61.3 275 51 316.8 316.8 287.7 316.9 0.03 WND Sounding variables and indices 1000-500 mb thick: 5374.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Sfc-500 mean rel hum: 71.82 % Est. max temperature: -7.49 C = 18.52 F Sfc-Lift cond lev (LCL): 633.23 mb = 3713.62 m = 12183.64 ft T: -21.76 C Conv cond level (CCL): 675.00 mb = 3255.00 m = 10679.00 ft Mean mixing ratio: 0.71 g/kg Conv temperature: -25.46 C = -13.83 F Cap Strength: 7.37 C Lifted Index: 8.36 C Risk: None Lifted Index @300 mb: 15.57 C Parcel Indices Parcel: using 100 mb layer CAPE (B+): 49.50 J/kg Max Up Vert Vel: 9.95 m/s Conv Inhibition (B-): 38393.00 J/kg Cap Strength: 8.25 C Lift Cond Lev (LCL): 582.51 mb = 4311.62 m = 14145.57 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 298 at 30 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 ---------------------------------------------------------- 0 675 3255 240 18 15.6 9.0 | 154 26 -11.3 23.0 1 500 5400 265 40 39.8 3.5 | 217 22 13.0 17.5 2 400 6970 265 45 44.8 3.9 | 225 25 18.0 17.9 3 300 8890 280 52 51.2 -9.0 | 258 25 24.4 5.0 4 250 10050 280 50 49.2 -8.7 | 257 23 22.4 5.3 5 245 10175 275 51 50.8 -4.4 | 248 26 23.9 9.6 6 200 11460 270 44 44.0 -0.0 | 231 22 17.1 14.0 7 150 13340 265 26 25.9 2.3 | 177 16 -1.0 16.3 8 100 16020 250 20 18.8 6.8 | 159 22 -8.1 20.8 9 70 18390 255 12 11.6 3.1 | 138 23 -15.3 17.1 10 50 20610 260 8 7.9 1.4 | 129 24 -19.0 15.4 Wind Parameters Mean winds (0-6000m): 267.5 at 40.4 knts Storm direction: 297.5 at 30.3 knts Shear (0-3000m) pos: 4.5 neg: 0.3 tot: 4.7 10-3/s Storm rel Dir Shear (0-3000m): 67.6 deg Storm rel helicity (0-3000m) pos: 164.1 neg: 0.0 tot: 164.1 m^2/s^2 ave: 54.7 10^-3 m/s^2 rel: 0.96 Storm rel vorticity (0-3000m) horiz: 4.8 stream: 4.6 10^-3/s Energy-Hel index: 0.04 Bulk Rich Number: 0.75 Bulk Shear: 66.06 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 ------------------------------------------------------------------------------- 500 253 19 157 21| 5.7 0.0 5.7| 35.2 0.0 35.2 70.4 0.97| 5.7 5.5 1000 253 22 165 21| 5.8 0.0 5.8| 70.1 0.0 70.1 70.1 0.97| 5.8 5.6 1500 254 25 173 21| 5.9 0.0 5.9|105.3 0.0 105.3 70.2 0.98| 5.9 5.8 2000 256 28 181 21| 5.9 0.0 5.9|141.5 0.0 141.5 70.8 0.98| 6.1 6.0 2500 259 31 189 20| 5.3 0.0 5.3|157.3 0.0 157.3 62.9 0.97| 5.5 5.3 3000 260 32 195 20| 4.5 0.3 4.7|164.1 0.0 164.1 54.7 0.96| 4.8 4.6 4000 262 35 203 21| 3.6 0.4 4.0|187.5 0.0 187.5 46.9 0.94| 4.2 3.9 5000 264 38 212 21| 3.5 0.3 3.8|236.3 0.0 236.3 47.3 0.95| 4.1 3.9 6000 268 40 221 21| 3.1 0.3 3.4|268.5 -1.2 267.2 44.5 0.94| 3.9 3.7 Wrote GIF file: /home/apache/climate/data/raob//04417/skewt/04417.skewt.20250418.11.gif