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 U0046... Searching the city database file for: U0046 ... Date:0000Z 18 APR 25 Station: U0046 WMO ident: 20046 Latitude: 80.62 Longitude: 58.05 ------------------------------------------------------------------------------- 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 1013 27 -15.9 -19.4 74 3.5 -16.5 340 13 256.3 256.4 255.9 258.5 0.81 1 1000 124 -15.9 -19.8 72 3.9 -16.6 5 19 257.2 257.4 256.6 259.4 0.79 2 931 658 -19.5 -23.8 69 4.3 -20.1 351 23 258.9 259.0 257.5 260.6 0.60 3 925 706 -19.3 -23.6 69 4.3 -19.9 350 23 259.6 259.7 258.1 261.3 0.62 4 892 977 -19.1 -23.0 71 3.9 -19.7 354 24 262.5 262.6 260.5 264.4 0.67 5 858 1270 -15.7 -19.8 71 4.1 -16.4 359 25 269.0 269.1 265.7 271.6 0.93 6 850 1341 -13.3 -16.8 75 3.5 -14.1 360 25 272.2 272.4 268.4 275.6 1.21 7 830 1523 -11.7 -15.1 76 3.4 -12.5 360 25 275.8 276.0 271.0 279.8 1.42 8 821 1606 -12.1 -14.9 80 2.8 -12.8 360 25 276.2 276.4 271.4 280.4 1.46 9 779 2006 -15.1 -21.1 60 6.0 -16.3 360 24 277.2 277.3 271.0 279.8 0.91 10 700 2812 -16.7 -30.7 29 14.0 -18.8 360 23 284.0 284.1 274.2 285.3 0.42 11 679 3039 -18.3 -33.3 26 15.0 -20.3 1 23 284.7 284.7 274.4 285.8 0.34 12 612 3802 -25.3 -35.3 39 10.0 -26.3 4 21 285.2 285.3 274.7 286.2 0.31 13 558 4467 -28.3 -38.3 38 10.0 -29.2 7 20 289.3 289.4 276.7 290.1 0.25 14 544 4648 -31.3 -40.3 41 9.0 -32.0 7 20 287.8 287.9 275.9 288.5 0.21 15 500 5240 -34.9 -42.9 44 8.0 -35.4 10 19 290.5 290.5 277.2 291.1 0.17 16 464 5758 -38.5 -46.5 43 8.0 -38.9 13 20 292.3 292.3 278.0 292.7 0.13 17 450 5967 -40.7 -48.7 42 8.0 -41.1 15 21 292.1 292.1 277.9 292.4 0.10 18 411 6579 -44.9 -53.9 36 9.0 -45.2 19 23 294.3 294.4 278.9 294.6 0.06 19 400 6760 -45.1 -54.1 36 9.0 -45.4 20 23 296.4 296.4 279.8 296.6 0.06 20 390 6928 -45.9 -53.9 40 8.0 -46.2 20 23 297.5 297.5 280.3 297.7 0.06 21 366 7351 -44.9 -54.9 32 10.0 -45.2 18 22 304.3 304.3 283.2 304.5 0.06 22 338 7878 -47.7 -57.7 31 10.0 -48.0 17 22 307.5 307.5 284.4 307.6 0.05 23 307 8503 -54.5 -64.5 28 10.0 -54.6 15 21 306.5 306.5 284.0 306.6 0.02 24 300 8650 -54.9 -65.9 24 11.0 -55.1 15 21 308.0 308.0 284.6 308.0 0.02 25 288 8911 -56.1 -67.1 24 11.0 -56.2 13 20 309.9 309.9 285.3 309.9 0.02 26 266 9429 -46.5 -58.5 24 12.0 -46.9 8 17 331.0 331.0 292.0 331.2 0.05 27 250 9840 -48.9 -60.9 23 12.0 -49.3 5 15 333.4 333.4 292.7 333.5 0.04 28 238 10162 -49.7 -61.7 23 12.0 -50.0 4 14 336.9 336.9 293.6 337.0 0.04 29 219 10713 -44.1 -58.1 20 14.0 -44.7 2 11 353.6 353.7 297.5 353.9 0.07 30 200 11320 -44.5 -59.5 17 15.0 -45.2 360 9 362.3 362.3 299.2 362.6 0.06 31 182 11950 -46.9 -63.9 13 17.0 -47.6 7 9 368.3 368.3 300.3 368.5 0.04 32 159 12851 -44.7 -62.7 12 18.0 -45.6 16 9 386.5 386.5 303.3 386.8 0.05 33 150 13240 -46.1 -64.1 11 18.0 -47.0 20 9 390.6 390.6 303.9 390.8 0.05 34 142 13603 -48.1 -67.1 9 19.0 -48.8 17 10 393.3 393.3 304.3 393.5 0.03 35 115 14995 -47.3 -67.3 8 20.0 -48.3 4 16 419.2 419.2 307.6 419.4 0.04 36 100 15920 -46.9 -66.9 8 20.0 -48.1 355 19 437.1 437.1 309.6 437.4 0.05 37 88 16769 -46.1 -67.1 8 21.0 -47.6 0 19 455.0 455.0 311.4 455.3 0.05 38 78 17566 -49.5 -70.5 7 21.0 -50.7 5 19 463.9 463.9 312.1 464.1 0.04 39 70 18280 -46.7 -69.7 6 23.0 -48.4 360 23 484.5 484.5 313.8 484.8 0.05 40 67 18571 -46.3 -69.3 6 23.0 -48.1 1 24 491.5 491.5 314.4 491.8 0.05 41 50 20500 -50.1 -72.1 6 22.0 -51.7 5 29 525.4 525.4 316.6 525.7 0.05 42 49 20632 -50.3 -72.3 6 22.0 -51.9 5 29 528.0 528.0 316.8 528.3 0.04 43 35 22833 -48.1 -70.1 6 22.0 -50.7 12 33 587.1 587.1 320.0 587.7 0.09 44 30 23840 -51.5 -73.5 6 22.0 -53.7 15 35 604.2 604.3 320.8 604.7 0.06 45 29 24060 -51.7 -73.7 5 22.0 -53.8 15 35 609.6 609.6 321.0 610.0 0.06 46 26 24776 -48.3 -70.3 6 22.0 -51.4 15 37 638.6 638.6 322.3 639.5 0.11 47 20 26500 -49.9 -72.9 5 23.0 -53.2 15 40 683.4 683.5 323.9 684.3 0.10 48 16 27959 -49.7 -73.7 4 24.0 -53.7 18 40 729.1 729.2 325.4 730.1 0.11 49 14 28840 -46.1 -70.1 5 24.0 -51.7 20 40 769.7 769.8 326.5 771.8 0.22 50 12 29863 -46.7 -70.7 5 24.0 -52.6 22 40 802.3 802.4 327.4 804.6 0.23 51 10 31080 -43.9 -68.9 5 25.0 -51.7 25 40 855.7 855.9 328.6 859.5 0.36 52 8.7 32015 -43.9 -68.9 5 25.0 -52.2 890.4 890.7 329.3 895.0 0.41 53 7.8 32747 -44.9 -69.9 4 25.0 -53.2 914.7 914.9 329.8 919.2 0.40 TRP 78 17566 -49.5 -70.5 7 21.0 -50.7 5 19 463.9 463.9 312.1 464.1 0.04 WND Sounding variables and indices 1000-500 mb thick: 5116.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.14 inches Sfc-500 mean rel hum: 50.60 % Est. max temperature: -4.16 C = 24.52 F Sfc-Lift cond lev (LCL): 956.72 mb = 454.46 m = 1490.98 ft T: -18.13 C 700-500 lapse rate: 7.50 C/km ThetaE index: 0.55 C Layer 779.0- 700.0 mb Conv cond level (CCL): 570.66 mb = 4306.02 m = 14127.20 ft Mean mixing ratio: 0.70 g/kg Conv temperature: 16.23 C = 61.22 F Cap Strength: 24.82 C Lifted Index: 24.96 C Risk: None Lifted Index @300 mb: 33.91 C Lifted Index @700 mb: 22.04 C Showalter Index: 12.48 C Risk: None Total Totals Index: 39.70 C Risk: None Vertical Totals Index: 21.60 C Cross Totals Index: 18.10 C K Index: -9.20 Risk: None Sweat Index: 69.00 Risk: None Energy Index: 3.29 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 8.97 J/kg Max Up Vert Vel: 4.24 m/s Conv Inhibition (B-): 87663.54 J/kg Cap Strength: 24.91 C Lift Cond Lev (LCL): 900.71 mb = 904.79 m = 2968.43 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 32 at 16 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 1013 27 340 13 4.4 -12.2 | 263 13 13.2 1.6 1 1000 124 5 19 -1.7 -18.9 | 306 9 7.1 -5.1 2 925 706 350 23 4.0 -22.7 | 305 16 12.8 -8.8 3 850 1341 360 25 -0.0 -25.0 | 322 14 8.8 -11.2 4 700 2812 360 23 -0.0 -23.0 | 316 13 8.8 -9.2 5 500 5240 10 19 -3.3 -18.7 | 312 7 5.5 -4.9 6 400 6760 20 23 -7.9 -21.6 | 353 8 0.9 -7.8 7 300 8650 15 21 -5.4 -20.3 | 333 7 3.3 -6.5 8 250 9840 5 15 -1.3 -14.9 | 279 8 7.5 -1.1 9 200 11320 360 9 -0.0 -9.0 | 241 10 8.8 4.8 10 150 13240 20 9 -3.1 -8.5 | 227 8 5.7 5.3 11 100 15920 355 19 1.7 -18.9 | 296 12 10.4 -5.1 12 78 17566 5 19 -1.7 -18.9 | 306 9 7.1 -5.1 13 70 18280 360 23 -0.0 -23.0 | 316 13 8.8 -9.2 14 50 20500 5 29 -2.5 -28.9 | 337 16 6.3 -15.1 15 30 23840 15 35 -9.1 -33.8 | 1 20 -0.3 -20.0 16 20 26500 15 40 -10.4 -38.6 | 4 25 -1.6 -24.8 17 10 31080 25 40 -16.9 -36.3 | 20 24 -8.1 -22.4 Wind Parameters Mean winds (0-6000m): 2.5 at 21.8 knts Storm direction: 32.5 at 16.4 knts Shear (0-3000m) pos: 2.2 neg: 0.2 tot: 2.4 10-3/s Storm rel Dir Shear (0-3000m): 53.2 deg Storm rel helicity (0-3000m) pos: 38.0 neg: -5.6 tot: 32.5 m^2/s^2 ave: 10.8 10^-3 m/s^2 rel: 0.48 Storm rel vorticity (0-3000m) horiz: 3.9 stream: 1.9 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 9.64 Bulk Shear: 0.93 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 ------------------------------------------------------------------------------- 500 359 20 302 11| 10.0 0.0 10.0| 21.4 -0.4 20.9 41.9 0.59| 14.4 8.5 1000 355 21 305 13| 6.1 0.0 6.1| 29.6 -1.2 28.4 28.4 0.55| 9.4 5.2 1500 356 22 310 13| 4.6 0.0 4.6| 38.0 -1.5 36.5 24.3 0.59| 7.1 4.2 2000 357 23 313 13| 3.4 0.2 3.6| 38.0 -3.1 34.9 17.5 0.55| 5.5 3.0 2500 358 23 314 13| 2.7 0.3 3.0| 38.0 -4.7 33.4 13.3 0.51| 4.5 2.3 3000 358 23 314 13| 2.2 0.2 2.4| 38.0 -5.6 32.5 10.8 0.48| 3.9 1.9 4000 359 23 315 13| 1.5 0.2 1.7| 38.0 -5.9 32.1 8.0 0.43| 3.2 1.4 5000 1 22 315 12| 1.1 0.1 1.3| 38.0 -6.9 31.1 6.2 0.38| 2.8 1.1 6000 2 22 316 11| 1.2 0.1 1.3| 43.3 -7.2 36.2 6.0 0.43| 2.6 1.1 Wrote GIF file: /home/apache/climate/data/raob//U0046/skewt/U0046.skewt.20250418.00.gif