UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042800.upa.cvt Date: 0000Z 28 APR 25 Searching for U4641... Searching the city database file for: U4641 ... Date:0000Z 28 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 42 30 3 SFC 991 115 1.2 -3.8 69 5.0 -0.7 30 3 275.1 275.5 272.9 283.1 2.91 2 965 327 -0.9 -8.9 55 8.0 -3.5 36 8 275.0 275.4 271.5 280.7 2.02 3 949 461 0.2 -8.8 51 9.0 -2.9 39 12 277.5 277.8 273.1 283.3 2.07 4 943 511 -0.3 -11.3 43 11.0 -3.8 41 13 277.5 277.8 272.5 282.3 1.71 5 925 665 -1.3 -10.3 50 9.0 -4.2 45 17 278.0 278.3 273.1 283.3 1.88 6 850 1332 -6.3 -11.3 68 5.0 -7.8 70 17 279.5 279.9 274.0 285.0 1.89 7 811 1697 -9.3 -12.8 76 3.5 -10.3 80 15 280.1 280.4 274.1 285.2 1.76 8 786 1939 -9.5 -12.7 77 3.2 -10.4 86 13 282.4 282.8 275.5 287.8 1.83 9 759 2209 -10.7 -14.2 75 3.5 -11.6 93 11 284.0 284.3 276.1 288.9 1.68 10 700 2826 -14.9 -19.1 70 4.2 -15.9 110 7 286.0 286.2 276.5 289.6 1.21 11 647 3416 -18.9 -23.8 65 4.9 -19.8 116 10 288.0 288.1 277.0 290.6 0.86 12 574 4293 -26.7 -31.6 63 4.9 -27.3 125 14 288.9 288.9 276.9 290.4 0.47 13 533 4826 -28.5 -35.5 51 7.0 -29.2 130 17 292.9 292.9 278.6 294.0 0.35 14 500 5280 -31.9 -39.9 45 8.0 -32.6 135 19 294.1 294.2 279.1 294.9 0.24 15 447 6064 -37.7 -43.7 53 6.0 -38.1 140 21 296.4 296.5 280.0 297.0 0.18 16 400 6820 -44.5 -50.5 51 6.0 -44.7 145 23 297.2 297.2 280.2 297.5 0.09 17 384 7091 -47.3 -53.3 50 6.0 -47.5 145 24 297.0 297.0 280.1 297.2 0.07 18 341 7869 -51.3 -57.3 49 6.0 -51.4 145 27 301.8 301.8 282.1 302.0 0.05 19 335 7984 -51.5 -58.5 43 7.0 -51.7 146 26 303.0 303.1 282.7 303.2 0.04 20 306 8571 -51.3 -59.3 38 8.0 -51.5 153 19 311.3 311.3 285.8 311.4 0.04 21 300 8700 -50.5 -58.5 38 8.0 -50.7 155 17 314.2 314.2 286.9 314.4 0.05 22 250 9900 -46.9 -59.9 21 13.0 -47.3 175 5 336.3 336.3 293.4 336.5 0.05 23 217 10839 -45.9 -63.9 11 18.0 -46.5 191 2 351.8 351.8 297.0 351.9 0.03 24 204 11249 -47.1 -67.1 8 20.0 -47.7 198 1 356.2 356.2 298.0 356.3 0.02 25 200 11380 -47.1 -68.1 7 21.0 -47.7 200 1 358.2 358.2 298.4 358.3 0.02 26 150 13280 -48.1 -73.1 4 25.0 -48.8 320 1 387.2 387.2 303.4 387.2 0.01 27 100 15950 -49.1 -74.1 4 25.0 -50.1 355 3 432.9 432.9 309.1 432.9 0.02 28 70 18280 -50.5 -74.5 4 24.0 -51.7 50 7 476.3 476.4 313.2 476.5 0.02 29 50 20480 -50.1 -75.1 4 25.0 -51.7 25 5 525.4 525.4 316.6 525.6 0.03 30 33 23189 -51.9 -75.9 4 24.0 -53.8 37 5 586.9 586.9 320.0 587.2 0.04 31 30 23810 -50.3 -74.3 4 24.0 -52.7 40 5 607.5 607.5 321.0 607.9 0.05 32 20 26450 -49.9 -74.9 4 25.0 -53.3 65 13 683.4 683.5 323.9 684.1 0.07 33 19 26785 -49.9 -74.9 4 25.0 -53.4 693.5 693.6 324.3 694.2 0.08 34 17 27519 -46.3 -72.3 4 26.0 -51.3 727.5 727.6 325.3 728.7 0.13 35 13 29294 -48.1 -73.1 4 25.0 -53.3 779.3 779.3 326.8 780.7 0.15 36 10 31039 -44.1 -70.1 4 26.0 -51.9 854.9 855.1 328.5 858.1 0.30 TRP 341 7869 -51.3 -57.3 49 6.0 -51.4 145 27 301.8 301.8 282.1 302.0 0.05 WND Sounding variables and indices 1000-500 mb thick: 5238.00 m Freezing level: 976.14 mb = 236.09 m = 774.56 ft Freezing level: 951.91 mb = 436.43 m = 1431.84 ft Freezing level: 946.60 mb = 480.97 m = 1577.98 ft Wetbulb zero: Below ground Precipitable water: 0.28 inches Sfc-500 mean rel hum: 63.38 % Est. max temperature: 5.81 C = 42.46 F Sfc-Lift cond lev (LCL): 916.75 mb = 735.65 m = 2413.53 ft T: -1.83 C 700-500 lapse rate: 6.93 C/km ThetaE index: 2.38 C Layer 965.0- 949.0 mb Conv cond level (CCL): 737.91 mb = 2423.62 m = 7951.40 ft Mean mixing ratio: 2.04 g/kg Conv temperature: 10.80 C = 51.44 F Cap Strength: 9.21 C Lifted Index: 9.86 C Risk: None Lifted Index @300 mb: 22.25 C Lifted Index @700 mb: 5.71 C Showalter Index: 8.16 C Risk: None Total Totals Index: 46.20 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 25.60 C Cross Totals Index: 20.60 C K Index: 10.10 Risk: None Sweat Index: 53.00 Risk: None Energy Index: 2.07 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 18.61 J/kg Max Up Vert Vel: 6.10 m/s Conv Inhibition (B-): 64370.85 J/kg Cap Strength: 9.69 C Lift Cond Lev (LCL): 827.27 mb = 1542.78 m = 5061.57 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 138 at 10 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 ---------------------------------------------------------- 0 991 115 30 3 -1.5 -2.6 | 332 12 5.5 -10.3 1 925 665 45 17 -12.0 -12.0 | 14 20 -5.0 -19.7 2 850 1332 70 17 -16.0 -5.8 | 33 16 -8.9 -13.5 3 700 2826 110 7 -6.6 2.4 | 355 5 0.5 -5.3 4 500 5280 135 19 -13.4 13.4 | 132 9 -6.4 5.7 5 400 6820 145 23 -13.2 18.8 | 151 13 -6.1 11.1 6 341 7869 145 27 -15.5 22.1 | 150 17 -8.4 14.4 7 300 8700 155 17 -7.2 15.4 | 179 8 -0.1 7.7 8 250 9900 175 5 -0.4 5.0 | 293 7 6.6 -2.7 9 200 11380 200 1 0.3 0.9 | 313 10 7.4 -6.8 10 150 13280 320 1 0.6 -0.8 | 318 11 7.7 -8.5 11 100 15950 355 3 0.3 -3.0 | 326 13 7.3 -10.7 12 70 18280 50 7 -5.4 -4.5 | 352 12 1.7 -12.2 13 50 20480 25 5 -2.1 -4.5 | 338 13 4.9 -12.3 14 30 23810 40 5 -3.2 -3.8 | 342 12 3.8 -11.6 15 20 26450 65 13 -11.8 -5.5 | 20 14 -4.7 -13.2 Wind Parameters Mean winds (0-6000m): 107.6 at 13.9 knts Storm direction: 137.6 at 10.5 knts Shear (0-3000m) pos: 1.5 neg: 0.0 tot: 1.5 10-3/s Storm rel Dir Shear (0-3000m): 37.2 deg Storm rel helicity (0-3000m) pos: 79.9 neg: -8.1 tot: 71.8 m^2/s^2 ave: 23.9 10^-3 m/s^2 rel: 0.41 Storm rel vorticity (0-3000m) horiz: 6.1 stream: 2.5 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.82 Bulk Shear: 22.77 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 42 9 357 15| 13.2 0.0 13.2| 41.7 0.0 41.7 83.4 0.80| 13.3 10.6 1000 49 13 10 17| 7.5 0.0 7.5| 67.9 0.0 67.9 67.9 0.82| 9.8 8.0 1500 57 14 18 16| 4.6 0.0 4.6| 78.4 0.0 78.4 52.2 0.74| 8.3 6.1 2000 63 14 21 15| 2.7 0.0 2.7| 78.5 -1.5 77.0 38.5 0.60| 7.4 4.5 2500 67 13 22 14| 1.7 0.0 1.7| 78.5 -6.0 72.5 29.0 0.45| 6.8 3.1 3000 70 12 21 13| 1.5 0.0 1.5| 79.9 -8.1 71.8 23.9 0.41| 6.1 2.5 4000 81 12 27 11| 1.8 0.0 1.8| 85.0 -8.1 76.9 19.2 0.48| 5.3 2.5 5000 96 13 41 9| 2.0 0.0 2.0| 91.4 -8.1 83.2 16.6 0.51| 4.8 2.4 6000 108 14 61 7| 1.9 0.0 1.9| 97.5 -8.1 89.4 14.9 0.52| 4.3 2.3 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20250428.00.gif