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 U8661... Searching the city database file for: U8661 ... Date:0000Z 18 APR 25 Station: U8661 WMO ident: 28661 Latitude: 55.47 Longitude: 65.40 ------------------------------------------------------------------------------- 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 1009 73 -0.9 -2.8 87 1.9 -1.6 290 5 271.6 272.1 271.1 279.9 3.08 1 1000 144 -1.5 -4.0 83 2.5 -2.4 310 11 271.6 272.1 270.8 279.4 2.84 2 945 594 -2.3 -7.1 70 4.8 -3.9 325 17 275.3 275.7 272.2 281.9 2.37 3 925 763 -3.7 -8.5 69 4.8 -5.3 330 19 275.5 275.9 272.1 281.6 2.17 4 869 1253 -7.9 -13.9 62 6.0 -9.5 323 20 276.1 276.4 271.4 280.4 1.50 5 850 1424 -9.5 -14.5 67 5.0 -10.8 320 21 276.2 276.4 271.4 280.4 1.46 6 783 2051 -15.5 -17.8 82 2.3 -16.0 320 28 276.3 276.5 271.0 279.8 1.20 7 740 2477 -15.9 -23.9 50 8.0 -17.4 320 33 280.4 280.5 272.7 282.6 0.75 8 727 2610 -16.1 -27.1 38 11.0 -17.9 320 35 281.6 281.7 273.1 283.3 0.57 9 702 2873 -18.1 -33.1 26 15.0 -20.1 320 38 282.2 282.3 273.1 283.3 0.33 10 700 2894 -18.3 -33.3 26 15.0 -20.3 320 38 282.2 282.3 273.1 283.3 0.33 11 570 4397 -29.3 -42.3 27 13.0 -30.3 326 54 286.4 286.4 275.0 286.9 0.16 12 520 5046 -34.5 -43.5 40 9.0 -35.1 329 61 287.7 287.8 275.7 288.3 0.16 13 500 5320 -35.5 -44.5 39 9.0 -36.0 330 64 289.8 289.8 276.8 290.3 0.15 14 497 5362 -35.5 -44.5 39 9.0 -36.0 330 65 290.3 290.3 277.0 290.8 0.15 15 456 5958 -37.5 -48.5 31 11.0 -38.1 332 74 295.0 295.0 279.3 295.3 0.10 16 443 6156 -39.9 -51.9 27 12.0 -40.4 333 78 294.4 294.4 278.9 294.7 0.07 17 401 6833 -41.9 -53.9 26 12.0 -42.3 335 89 300.3 300.3 281.5 300.5 0.06 18 400 6850 -42.9 -54.9 26 12.0 -43.3 335 89 299.2 299.2 281.1 299.4 0.06 19 386 7090 -44.1 -56.1 25 12.0 -44.5 335 91 300.7 300.7 281.7 300.9 0.05 20 359 7572 -49.1 -60.1 27 11.0 -49.3 335 95 300.3 300.3 281.5 300.4 0.03 21 348 7776 -49.2 -60.3 26 11.2 -49.4 335 95 302.9 302.9 282.6 303.0 0.03 22 300 8750 -49.5 -61.5 23 12.0 -49.8 330 89 315.6 315.6 287.3 315.7 0.03 23 293 8904 -51.3 -63.3 23 12.0 -51.5 329 89 315.2 315.2 287.2 315.3 0.03 24 250 9940 -50.1 -63.1 20 13.0 -50.4 325 87 331.6 331.6 292.2 331.7 0.03 25 238 10261 -49.9 -63.9 18 14.0 -50.3 318 83 336.6 336.6 293.5 336.7 0.03 26 230 10486 -46.7 -63.7 13 17.0 -47.2 314 81 344.8 344.8 295.5 344.9 0.03 27 200 11410 -47.7 -65.7 11 18.0 -48.3 295 71 357.2 357.2 298.2 357.4 0.03 28 186 11890 -47.3 -65.3 11 18.0 -47.9 365.4 365.4 299.8 365.5 0.03 TRP 359 7572 -49.1 -60.1 27 11.0 -49.3 335 95 300.3 300.3 281.5 300.4 0.03 WND 348 7776 -49.2 -60.3 26 11.2 -49.4 335 95 302.9 302.9 282.6 303.0 0.03 Sounding variables and indices 1000-500 mb thick: 5176.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.22 inches Sfc-500 mean rel hum: 48.42 % Est. max temperature: 3.72 C = 38.69 F Sfc-Lift cond lev (LCL): 979.34 mb = 309.98 m = 1016.97 ft T: -1.80 C 700-500 lapse rate: 7.09 C/km ThetaE index: 2.07 C Layer 925.0- 740.0 mb Conv cond level (CCL): 873.16 mb = 1215.17 m = 3986.74 ft Mean mixing ratio: 2.48 g/kg Conv temperature: 3.64 C = 38.55 F Cap Strength: 6.23 C Lifted Index: 7.72 C Risk: None Lifted Index @300 mb: 24.60 C Lifted Index @700 mb: 3.71 C Showalter Index: 8.13 C Risk: None Total Totals Index: 47.00 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 26.00 C Cross Totals Index: 21.00 C K Index: -3.50 Risk: None Sweat Index: 106.00 Risk: None Energy Index: 2.06 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 16.71 J/kg Max Up Vert Vel: 5.78 m/s Conv Inhibition (B-): 51.03 J/kg Cap Strength: 7.69 C Lift Cond Lev (LCL): 900.42 mb = 974.13 m = 3195.91 ft Lev Free Conv (LFC): 795.42 mb = 1930.67 m = 6334.13 ft Equ Level (EL): 775.42 mb = 2124.17 m = 6968.98 ft B at Equ Level: 15.75 J/kg Max Parcel Lev (MPL): 745.42 mb = 2421.71 m = 7945.16 ft Wind level data Storm motion: 356 at 31 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 1009 73 290 5 4.7 -1.7 | 185 29 2.6 29.0 1 1000 144 310 11 8.4 -7.1 | 195 24 6.3 23.7 2 925 763 330 19 9.5 -16.5 | 207 16 7.4 14.3 3 850 1424 320 21 13.5 -16.1 | 218 19 11.4 14.6 4 700 2894 320 38 24.4 -29.1 | 266 22 22.3 1.6 5 500 5320 330 64 32.0 -55.4 | 310 39 29.9 -24.7 6 400 6850 335 89 37.6 -80.7 | 325 61 35.5 -49.9 7 359 7572 335 95 40.1 -86.1 | 326 67 38.0 -55.4 8 348 7776 335 95 40.1 -86.1 | 326 67 38.0 -55.4 9 300 8750 330 89 44.5 -77.1 | 318 63 42.4 -46.4 10 250 9940 325 87 49.9 -71.3 | 310 63 47.8 -40.5 11 200 11410 295 71 64.3 -30.0 | 269 62 62.2 0.7 Wind Parameters Mean winds (0-6000m): 326.1 at 41.1 knts Storm direction: 356.1 at 30.8 knts Shear (0-3000m) pos: 3.7 neg: 2.5 tot: 6.2 10-3/s Storm rel Dir Shear (0-3000m): 85.4 deg Storm rel helicity (0-3000m) pos: 163.5 neg: 0.0 tot: 163.5 m^2/s^2 ave: 54.5 10^-3 m/s^2 rel: 0.77 Storm rel vorticity (0-3000m) horiz: 6.7 stream: 5.2 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.16 Bulk Shear: 106.39 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 ------------------------------------------------------------------------------- 500 317 13 197 22| 13.1 0.0 13.1| 51.7 0.0 51.7 103.4 0.61| 13.4 8.2 1000 324 16 202 19| 8.3 0.0 8.3| 63.7 0.0 63.7 63.7 0.59| 9.2 5.5 1500 323 18 207 19| 5.5 1.2 6.7| 79.3 0.0 79.3 52.8 0.64| 7.4 4.8 2000 322 20 213 18| 4.1 2.3 6.4|107.0 0.0 107.0 53.5 0.72| 7.1 5.1 2500 321 22 221 18| 3.3 3.0 6.3|134.7 0.0 134.7 53.9 0.75| 6.8 5.2 3000 321 25 229 18| 3.7 2.5 6.2|163.5 0.0 163.5 54.5 0.77| 6.7 5.2 4000 322 30 245 18| 4.2 1.9 6.1|228.4 0.0 228.4 57.1 0.79| 6.4 5.1 5000 324 35 263 19| 4.5 1.5 6.0|302.0 0.0 302.0 60.4 0.78| 6.3 4.9 6000 326 41 279 21| 5.1 1.2 6.3|397.9 0.0 397.9 66.3 0.73| 6.6 4.9 Wrote GIF file: /home/apache/climate/data/raob//U8661/skewt/U8661.skewt.20250418.00.gif