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 U3472... Searching the city database file for: U3472 ... Date:0000Z 18 APR 25 Station: U3472 WMO ident: 23472 Latitude: 65.78 Longitude: 87.95 ------------------------------------------------------------------------------- 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 -14 310 1 SFC 993 39 -17.3 -19.6 82 2.3 -17.7 310 1 256.4 256.5 255.9 258.6 0.81 2 958 307 -18.5 -22.6 70 4.1 -19.1 333 5 257.8 257.9 256.8 259.6 0.65 3 952 354 -17.5 -21.4 72 3.9 -18.1 337 6 259.3 259.4 258.1 261.3 0.73 4 942 434 -12.7 -16.4 74 3.7 -13.5 343 7 264.9 265.1 263.2 268.0 1.12 5 932 516 -10.5 -13.9 76 3.4 -11.3 350 8 268.0 268.2 265.9 271.9 1.40 6 930 532 -10.3 -13.7 76 3.4 -11.1 352 8 268.4 268.6 266.2 272.3 1.42 7 925 574 -10.5 -14.1 75 3.6 -11.3 355 9 268.6 268.8 266.3 272.4 1.39 8 884 922 -11.9 -17.9 61 6.0 -13.2 355 8 270.6 270.8 267.1 273.6 1.06 9 850 1221 -13.3 -21.3 51 8.0 -14.8 355 7 272.2 272.3 267.7 274.6 0.82 10 762 2045 -18.1 -31.1 31 13.0 -19.8 352 8 275.7 275.7 269.2 276.8 0.37 11 706 2610 -22.5 -32.5 40 10.0 -23.7 350 9 276.9 277.0 269.9 278.0 0.35 12 700 2673 -22.5 -32.5 40 10.0 -23.7 350 9 277.6 277.6 270.3 278.7 0.36 13 644 3284 -24.5 -41.5 19 17.0 -25.9 317 10 282.0 282.0 272.6 282.5 0.16 14 599 3809 -26.9 -39.9 28 13.0 -28.0 287 12 285.1 285.2 274.4 285.8 0.20 15 554 4369 -30.5 -37.5 50 7.0 -31.1 256 13 287.3 287.3 275.7 288.2 0.27 16 541 4538 -31.9 -38.9 50 7.0 -32.4 247 14 287.6 287.6 275.8 288.4 0.24 17 500 5090 -36.7 -43.7 48 7.0 -37.1 215 15 288.3 288.3 276.0 288.8 0.16 18 473 5470 -40.1 -46.1 53 6.0 -40.4 210 16 288.7 288.7 276.2 289.1 0.13 19 400 6590 -48.1 -53.1 56 5.0 -48.2 195 21 292.5 292.5 278.0 292.7 0.07 20 383 6875 -49.9 -54.9 56 5.0 -50.0 293.8 293.8 278.6 294.0 0.06 21 352 7425 -51.5 -57.5 49 6.0 -51.6 205 23 298.8 298.8 280.8 299.0 0.05 22 330 7845 -50.5 -56.5 49 6.0 -50.7 305.7 305.7 283.8 305.9 0.06 TRP 352 7425 -51.5 -57.5 49 6.0 -51.6 205 23 298.8 298.8 280.8 299.0 0.05 WND Sounding variables and indices 1000-500 mb thick: 5104.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.11 inches Sfc-500 mean rel hum: 44.32 % Est. max temperature: -1.22 C = 29.80 F Sfc-Lift cond lev (LCL): 956.35 mb = 320.10 m = 1050.18 ft T: -18.23 C 700-500 lapse rate: 5.88 C/km ThetaE index: 0.00 C Layer 993.0--518969491456.0 mb Conv cond level (CCL): 993.00 mb = 38.69 m = 126.94 ft Mean mixing ratio: 1.02 g/kg Conv temperature: -16.92 C = 1.55 F Cap Strength: 18.06 C Lifted Index: 18.15 C Risk: None Lifted Index @700 mb: 11.03 C Showalter Index: 11.50 C Risk: None Total Totals Index: 38.80 C Risk: None Vertical Totals Index: 23.40 C Cross Totals Index: 15.40 C K Index: -7.90 Risk: None Sweat Index: 29.00 Risk: None Energy Index: 3.01 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 78.62 J/kg Max Up Vert Vel: 12.54 m/s Conv Inhibition (B-): 4730.46 J/kg Cap Strength: 18.14 C Lift Cond Lev (LCL): 891.13 mb = 860.14 m = 2821.96 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 299 at 8 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 ---------------------------------------------------------- 0 993 39 310 1 0.8 -0.6 | 118 7 -6.3 3.4 1 925 574 355 9 0.8 -9.0 | 52 8 -6.3 -5.0 2 850 1221 355 7 0.6 -7.0 | 65 7 -6.5 -3.0 3 700 2673 350 9 1.6 -8.9 | 49 7 -5.5 -4.9 4 500 5090 215 15 8.6 12.3 | 185 16 1.5 16.3 5 400 6590 195 21 5.4 20.3 | 176 24 -1.6 24.3 Wind Parameters Mean winds (0-6000m): 269.4 at 10.8 knts Storm direction: 299.4 at 8.1 knts Shear (0-3000m) pos: 1.2 neg: 0.8 tot: 1.9 10-3/s Storm rel Dir Shear (0-3000m): -93.5 deg Storm rel helicity (0-3000m) pos: 3.1 neg: -17.2 tot: -14.1 m^2/s^2 ave: -4.7 10^-3 m/s^2 rel: -0.57 Storm rel vorticity (0-3000m) horiz: 2.8 stream: -1.6 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 4.80 Bulk Shear: 16.40 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 ------------------------------------------------------------------------------- 500 350 5 84 6| 8.0 0.0 8.0| 0.0 -9.0 -9.0 -18.0 -0.74| 8.6 -6.4 1000 353 7 69 7| 3.5 0.0 3.5| 2.2 -9.1 -6.9 -6.9 -0.51| 5.2 -2.7 1500 354 7 67 7| 2.4 0.1 2.4| 3.1 -9.9 -6.8 -4.5 -0.46| 3.8 -1.8 2000 354 7 65 7| 1.8 0.2 1.9| 3.1 -11.3 -8.2 -4.1 -0.49| 3.1 -1.5 2500 353 7 62 7| 1.4 0.3 1.7| 3.1 -12.7 -9.6 -3.8 -0.52| 2.6 -1.3 3000 351 8 59 7| 1.2 0.8 1.9| 3.1 -17.2 -14.1 -4.7 -0.57| 2.8 -1.6 4000 335 8 44 5| 0.9 1.7 2.6| 3.1 -27.1 -24.0 -6.0 -0.69| 3.5 -2.4 5000 315 10 6 3| 0.7 2.2 2.9| 3.1 -55.0 -51.9 -10.4 -0.69| 4.2 -2.9 6000 269 11 223 6| 0.6 2.2 2.8| 3.1 -66.2 -63.1 -10.5 -0.65| 4.0 -2.6 Wrote GIF file: /home/apache/climate/data/raob//U3472/skewt/U3472.skewt.20250418.00.gif