UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041712.upa.cvt Date: 1200Z 17 APR 25 Searching for U3921... Searching the city database file for: U3921 ... Date:1200Z 17 APR 25 Station: U3921 WMO ident: 23921 Latitude: 60.68 Longitude: 60.43 ------------------------------------------------------------------------------- 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 1006 95 3.8 -12.2 30 16.0 -1.3 315 11 276.5 276.7 271.6 280.7 1.49 1 1000 144 3.6 -14.4 25 18.0 -1.8 320 11 276.8 277.0 271.4 280.4 1.25 2 925 769 -2.7 -19.7 26 17.0 -6.8 330 19 276.5 276.7 270.6 279.1 0.87 3 897 1011 -5.3 -20.3 30 15.0 -8.8 330 20 276.3 276.5 270.4 278.8 0.85 4 850 1429 -9.7 -20.7 40 11.0 -12.1 330 23 276.0 276.1 270.2 278.5 0.86 5 764 2241 -16.7 -21.6 66 4.9 -17.6 333 27 277.0 277.1 270.9 279.6 0.89 6 740 2480 -16.5 -25.5 46 9.0 -18.0 334 29 279.7 279.8 272.1 281.7 0.65 7 711 2780 -17.9 -30.9 31 13.0 -19.7 335 30 281.4 281.5 272.7 282.7 0.41 8 700 2896 -18.5 -32.5 28 14.0 -20.4 335 31 282.0 282.1 272.9 283.1 0.36 9 620 3790 -24.1 -39.1 24 15.0 -25.6 335 38 285.5 285.6 274.7 286.2 0.21 10 500 5320 -36.3 -53.3 16 17.0 -37.0 335 50 288.8 288.8 276.1 289.0 0.05 11 496 5376 -36.9 -53.9 16 17.0 -37.5 335 51 288.7 288.7 276.1 288.9 0.05 12 400 6840 -44.9 -60.9 15 16.0 -45.3 335 66 296.6 296.6 279.9 296.7 0.03 13 362 7499 -48.3 -64.3 14 16.0 -48.6 335 68 300.7 300.7 281.7 300.7 0.02 14 303 8665 -48.3 -66.2 11 17.9 -48.7 335 73 316.4 316.4 287.6 316.4 0.02 15 300 8730 -48.3 -66.3 11 18.0 -48.7 335 73 317.3 317.3 287.9 317.3 0.02 16 283 9116 -47.3 -66.3 10 19.0 -47.7 335 71 324.0 324.1 290.0 324.1 0.02 17 250 9940 -46.9 -68.9 6 22.0 -47.4 335 66 336.3 336.3 293.4 336.4 0.01 18 214 10970 -45.3 -71.3 4 26.0 -46.0 332 60 354.1 354.1 297.5 354.2 0.01 19 200 11420 -45.9 -71.9 4 26.0 -46.6 330 58 360.1 360.1 298.7 360.1 0.01 20 150 13330 -46.5 -72.5 4 26.0 -47.4 325 46 389.9 389.9 303.8 390.0 0.01 21 137 13931 -45.5 -71.5 4 26.0 -46.6 326 44 401.9 401.9 305.5 402.0 0.02 22 116 15027 -49.3 -74.3 4 25.0 -50.1 328 40 414.5 414.5 307.1 414.6 0.01 23 100 16000 -48.1 -73.1 4 25.0 -49.2 330 36 434.8 434.8 309.4 434.9 0.02 24 71 18247 -50.3 -74.3 4 24.0 -51.5 340 38 474.8 474.9 313.1 475.0 0.02 25 70 18340 -49.5 -74.5 4 25.0 -50.8 340 38 478.5 478.5 313.4 478.6 0.02 26 63 19036 -47.1 -73.1 4 26.0 -48.9 343 33 498.4 498.4 314.8 498.6 0.03 27 54 20048 -52.1 -76.1 4 24.0 -53.4 348 26 509.4 509.4 315.6 509.5 0.02 28 50 20550 -49.7 -74.7 4 25.0 -51.4 350 23 526.4 526.4 316.7 526.5 0.03 29 48 20818 -48.7 -73.7 4 25.0 -50.7 348 23 534.9 534.9 317.2 535.2 0.04 30 36 22700 -51.3 -75.3 4 24.0 -53.2 337 22 574.1 574.1 319.4 574.3 0.04 31 30 23890 -49.7 -74.7 4 25.0 -52.2 330 21 609.1 609.2 321.0 609.5 0.05 32 24 25354 -48.5 -73.5 4 25.0 -51.8 652.8 652.8 322.8 653.4 0.08 TRP 362 7499 -48.3 -64.3 14 16.0 -48.6 335 68 300.7 300.7 281.7 300.7 0.02 WND 303 8665 -48.3 -66.2 11 17.9 -48.7 335 73 316.4 316.4 287.6 316.4 0.02 Sounding variables and indices 1000-500 mb thick: 5176.00 m Freezing level: 957.14 mb = 501.14 m = 1644.15 ft Wetbulb zero: Below ground Precipitable water: 0.13 inches Sfc-500 mean rel hum: 31.04 % Est. max temperature: 3.35 C = 38.04 F Sfc-Lift cond lev (LCL): 783.96 mb = 2044.29 m = 6706.90 ft T: -15.01 C 700-500 lapse rate: 7.34 C/km ThetaE index: 2.21 C Layer 1000.0- 764.0 mb Conv cond level (CCL): 654.06 mb = 3396.27 m = 11142.47 ft Mean mixing ratio: 1.04 g/kg Conv temperature: 11.33 C = 52.39 F Cap Strength: 6.44 C Lifted Index: 7.92 C Risk: None Lifted Index @300 mb: 26.68 C Lifted Index @700 mb: 4.45 C Showalter Index: 8.80 C Risk: None Total Totals Index: 42.20 C Risk: None Vertical Totals Index: 26.60 C Cross Totals Index: 15.60 C K Index: -8.10 Risk: None Sweat Index: 96.00 Risk: None Energy Index: 2.21 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 12.47 J/kg Max Up Vert Vel: 4.99 m/s Conv Inhibition (B-): 51648.79 J/kg Cap Strength: 7.78 C Lift Cond Lev (LCL): 729.72 mb = 2584.94 m = 8480.67 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 4 at 26 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 1006 95 315 11 7.8 -7.8 | 208 20 9.5 17.9 1 1000 144 320 11 7.1 -8.4 | 207 19 8.8 17.3 2 925 769 330 19 9.5 -16.5 | 231 15 11.2 9.2 3 850 1429 330 23 11.5 -19.9 | 246 14 13.2 5.8 4 700 2896 335 31 13.1 -28.1 | 279 15 14.8 -2.4 5 500 5320 335 50 21.1 -45.3 | 311 30 22.9 -19.6 6 400 6840 335 66 27.9 -59.8 | 319 45 29.6 -34.1 7 362 7499 335 68 28.7 -61.6 | 320 47 30.5 -35.9 8 303 8665 335 73 30.9 -66.2 | 321 52 32.6 -40.5 9 300 8730 335 73 30.9 -66.2 | 321 52 32.6 -40.5 10 250 9940 335 66 27.9 -59.8 | 319 45 29.6 -34.1 11 200 11420 330 58 29.0 -50.2 | 309 39 30.7 -24.5 12 150 13330 325 46 26.4 -37.7 | 293 31 28.1 -12.0 13 100 16000 330 36 18.0 -31.2 | 286 20 19.7 -5.5 14 70 18340 340 38 13.0 -35.7 | 304 18 14.7 -10.0 15 50 20550 350 23 4.0 -22.7 | 242 6 5.7 3.0 16 30 23890 330 21 10.5 -18.2 | 238 14 12.2 7.5 Wind Parameters Mean winds (0-6000m): 333.9 at 34.3 knts Storm direction: 3.9 at 25.8 knts Shear (0-3000m) pos: 3.9 neg: 0.0 tot: 3.9 10-3/s Storm rel Dir Shear (0-3000m): 75.9 deg Storm rel helicity (0-3000m) pos: 81.2 neg: 0.0 tot: 81.2 m^2/s^2 ave: 27.1 10^-3 m/s^2 rel: 0.87 Storm rel vorticity (0-3000m) horiz: 3.9 stream: 3.4 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.21 Bulk Shear: 58.73 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 ------------------------------------------------------------------------------- 500 324 14 214 18| 6.6 0.0 6.6| 21.3 0.0 21.3 42.5 0.69| 6.9 4.7 1000 328 16 222 16| 5.5 0.0 5.5| 36.8 0.0 36.8 36.8 0.77| 5.7 4.4 1500 329 18 229 15| 4.7 0.0 4.7| 48.0 0.0 48.0 32.0 0.82| 4.8 3.9 2000 329 20 235 15| 4.2 0.0 4.2| 58.7 0.0 58.7 29.3 0.85| 4.3 3.7 2500 331 22 242 14| 4.0 0.0 4.0| 69.5 0.0 69.5 27.8 0.87| 4.0 3.5 3000 332 23 248 14| 3.9 0.0 3.9| 81.2 0.0 81.2 27.1 0.87| 3.9 3.4 4000 333 27 262 14| 2.9 1.0 3.9|107.0 0.0 107.0 26.8 0.82| 4.0 3.3 5000 333 30 276 15| 2.3 1.6 3.9|132.8 0.0 132.8 26.6 0.76| 4.0 3.0 6000 334 34 287 18| 1.9 2.2 4.1|165.4 0.0 165.4 27.6 0.68| 4.2 2.8 Wrote GIF file: /home/apache/climate/data/raob//U3921/skewt/U3921.skewt.20250417.12.gif