UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041800.upa.cvt Date: 0000Z 18 APR 25 Searching for U4641... Searching the city database file for: U4641 ... Date:0000Z 18 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 63 165 3 SFC 994 111 -0.7 -10.7 47 10.0 -3.8 165 3 272.9 273.2 269.7 277.7 1.70 2 979 233 -0.3 -13.3 37 13.0 -4.1 175 8 274.5 274.7 270.2 278.5 1.40 3 973 282 2.6 -9.4 41 12.0 -1.5 178 10 277.9 278.2 273.1 283.4 1.92 4 925 689 -0.3 -10.3 47 10.0 -3.6 210 25 279.0 279.3 273.7 284.4 1.88 5 850 1357 -6.3 -12.3 62 6.0 -8.1 225 25 279.5 279.8 273.8 284.6 1.75 6 808 1751 -8.9 -13.6 69 4.7 -10.2 229 24 280.9 281.1 274.3 285.7 1.65 7 785 1975 -8.9 -13.5 69 4.6 -10.2 231 24 283.2 283.5 275.7 288.2 1.72 8 731 2524 -11.7 -15.4 74 3.7 -12.7 237 23 286.0 286.2 277.0 290.6 1.58 9 724 2597 -11.3 -14.8 75 3.5 -12.3 237 23 287.2 287.5 277.7 292.2 1.67 10 700 2856 -11.3 -16.3 66 5.0 -12.6 240 23 290.0 290.2 278.9 294.6 1.53 11 663 3272 -12.3 -20.3 51 8.0 -14.2 243 24 293.4 293.6 280.0 297.0 1.15 12 657 3342 -12.9 -21.9 47 9.0 -15.0 244 24 293.5 293.7 279.8 296.6 1.01 13 600 4029 -16.7 -22.7 60 6.0 -18.0 249 26 296.8 297.0 281.4 300.1 1.03 14 500 5370 -27.7 -33.7 57 6.0 -28.5 260 29 299.3 299.3 281.7 300.7 0.44 15 466 5871 -31.5 -37.5 55 6.0 -32.1 266 31 300.6 300.7 282.1 301.7 0.33 16 456 6024 -33.3 -39.3 55 6.0 -33.8 268 31 300.2 300.3 281.8 301.2 0.28 17 400 6930 -40.1 -47.1 47 7.0 -40.5 280 35 302.9 302.9 282.7 303.4 0.14 18 370 7455 -43.7 -51.7 41 8.0 -44.0 284 36 304.9 304.9 283.5 305.2 0.09 19 308 8653 -54.7 -61.7 42 7.0 -54.8 294 40 305.9 305.9 283.8 306.0 0.03 20 300 8820 -55.5 -63.5 36 8.0 -55.6 295 40 307.1 307.1 284.2 307.2 0.02 21 264 9629 -59.9 -67.9 34 8.0 -60.0 300 40 312.1 312.1 286.1 312.2 0.02 22 255 9846 -60.1 -68.1 34 8.0 -60.2 300 41 314.9 314.9 287.1 315.0 0.02 23 250 9970 -58.3 -66.3 35 8.0 -58.4 300 42 319.4 319.4 288.6 319.5 0.02 24 243 10151 -54.5 -62.5 37 8.0 -54.6 297 41 327.7 327.7 291.1 327.8 0.04 25 200 11410 -51.5 -62.5 26 11.0 -51.8 275 31 351.2 351.2 297.0 351.4 0.04 26 169 12503 -49.5 -67.5 10 18.0 -50.0 272 29 371.9 371.9 300.9 372.0 0.03 27 150 13280 -49.9 -69.9 8 20.0 -50.5 270 27 384.1 384.1 302.9 384.2 0.02 28 100 15930 -50.9 -74.9 4 24.0 -51.7 275 25 429.4 429.4 308.8 429.5 0.01 29 82 17215 -52.3 -76.3 4 24.0 -53.1 258 23 451.6 451.6 311.0 451.7 0.01 30 70 18240 -50.5 -74.5 4 24.0 -51.7 245 21 476.3 476.4 313.2 476.5 0.02 31 65 18727 -48.3 -73.3 4 25.0 -49.8 245 20 491.4 491.4 314.3 491.5 0.03 32 57 19587 -51.5 -75.5 4 24.0 -52.8 245 19 502.9 502.9 315.2 503.1 0.02 33 50 20440 -50.7 -74.7 4 24.0 -52.2 245 17 524.0 524.0 316.6 524.2 0.03 34 30 23740 -53.3 -77.3 4 24.0 -55.1 255 17 599.3 599.3 320.6 599.6 0.03 35 26 24664 -54.1 -78.1 4 24.0 -56.0 248 15 622.1 622.1 321.6 622.4 0.03 36 20 26360 -52.7 -76.7 4 24.0 -55.4 235 11 674.9 674.9 323.6 675.3 0.06 37 16 27807 -50.1 -75.1 4 25.0 -54.0 246 12 727.8 727.9 325.3 728.6 0.09 38 12 29681 -50.9 -74.9 4 24.0 -55.3 261 12 787.4 787.5 327.0 788.6 0.12 39 10 30880 -45.9 -71.9 4 26.0 -52.9 270 13 848.2 848.3 328.4 850.7 0.23 40 9.1 31509 -44.7 -70.7 4 26.0 -52.6 876.0 876.2 329.0 879.3 0.30 41 8.3 32121 -47.5 -73.5 3 26.0 -54.5 888.3 888.5 329.2 890.8 0.22 42 6.5 33745 -45.3 -71.3 4 26.0 -54.2 962.0 962.2 330.6 966.6 0.39 TRP 264 9629 -59.9 -67.9 34 8.0 -60.0 300 40 312.1 312.1 286.1 312.2 0.02 WND Sounding variables and indices 1000-500 mb thick: 5307.00 m Freezing level: Surface below freezing Freezing level: 978.38 mb = 237.76 m = 780.06 ft Freezing level: 929.97 mb = 646.91 m = 2122.37 ft Wetbulb zero: Below ground Precipitable water: 0.30 inches Sfc-500 mean rel hum: 58.65 % Est. max temperature: 6.10 C = 42.98 F Sfc-Lift cond lev (LCL): 849.47 mb = 1361.89 m = 4468.09 ft T: -6.33 C 700-500 lapse rate: 6.52 C/km Conv cond level (CCL): 613.36 mb = 3862.07 m = 12670.68 ft Mean mixing ratio: 1.82 g/kg Conv temperature: 22.33 C = 72.19 F Cap Strength: 13.28 C Lifted Index: 13.82 C Risk: None Lifted Index @300 mb: 17.08 C Lifted Index @700 mb: 9.13 C Showalter Index: 12.65 C Risk: None Total Totals Index: 36.80 C Risk: None Vertical Totals Index: 21.40 C Cross Totals Index: 15.40 C K Index: 4.10 Risk: None Sweat Index: 175.70 Risk: None Energy Index: 3.45 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 20.95 J/kg Max Up Vert Vel: 6.47 m/s Conv Inhibition (B-): 80294.82 J/kg Cap Strength: 13.78 C Lift Cond Lev (LCL): 798.91 mb = 1838.86 m = 6032.92 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 273 at 19 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 ---------------------------------------------------------- 0 994 111 165 3 -0.8 2.9 | 101 20 -19.4 3.9 1 925 689 210 25 12.5 21.7 | 165 23 -6.1 22.6 2 850 1357 225 25 17.7 17.7 | 177 19 -0.9 18.6 3 700 2856 240 23 19.9 11.5 | 186 13 1.3 12.5 4 500 5370 260 29 28.6 5.0 | 239 12 9.9 6.0 5 400 6930 280 35 34.5 -6.1 | 288 17 15.8 -5.1 6 300 8820 295 40 36.3 -16.9 | 312 24 17.6 -15.9 7 264 9629 300 40 34.6 -20.0 | 320 25 16.0 -19.0 8 250 9970 300 42 36.4 -21.0 | 318 27 17.8 -20.0 9 200 11410 275 31 30.9 -2.7 | 278 12 12.3 -1.7 10 150 13280 270 27 27.0 -0.0 | 263 8 8.4 1.0 11 100 15930 275 25 24.9 -2.2 | 281 6 6.3 -1.2 12 70 18240 245 21 19.0 8.9 | 182 10 0.4 9.8 13 50 20440 245 17 15.4 7.2 | 158 9 -3.2 8.2 14 30 23740 255 17 16.4 4.4 | 158 6 -2.2 5.4 15 20 26360 235 11 9.0 6.3 | 127 12 -9.6 7.3 16 10 30880 270 13 13.0 -0.0 | 100 6 -5.6 1.0 Wind Parameters Mean winds (0-6000m): 243.0 at 24.9 knts Storm direction: 273.0 at 18.6 knts Shear (0-3000m) pos: 4.0 neg: 0.0 tot: 4.0 10-3/s Storm rel Dir Shear (0-3000m): 89.2 deg Storm rel helicity (0-3000m) pos: 182.0 neg: 0.0 tot: 182.0 m^2/s^2 ave: 60.7 10^-3 m/s^2 rel: 0.83 Storm rel vorticity (0-3000m) horiz: 6.7 stream: 5.6 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 0.56 Bulk Shear: 37.70 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 ------------------------------------------------------------------------------- 500 205 12 133 18| 20.4 0.0 20.4|120.1 0.0 120.1 240.2 0.98| 21.7 21.3 1000 211 19 152 19| 12.0 0.0 12.0|160.3 0.0 160.3 160.3 0.95| 14.9 14.1 1500 216 21 160 19| 8.0 0.0 8.0|171.0 0.0 171.0 114.0 0.91| 11.2 10.1 2000 220 22 165 18| 5.9 0.0 5.9|174.7 0.0 174.7 87.4 0.87| 9.0 7.8 2500 223 22 168 17| 4.7 0.0 4.7|177.6 0.0 177.6 71.0 0.84| 7.6 6.4 3000 226 22 171 17| 4.0 0.0 4.0|182.0 0.0 182.0 60.7 0.83| 6.7 5.6 4000 232 23 177 15| 3.3 0.0 3.3|194.8 0.0 194.8 48.7 0.85| 5.6 4.7 5000 237 24 186 14| 3.0 0.0 3.0|208.2 0.0 208.2 41.6 0.86| 4.9 4.2 6000 243 25 196 13| 2.8 0.0 2.8|229.9 0.0 229.9 38.3 0.87| 4.7 4.1 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20250418.00.gif