UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041700.upa.cvt Date: 0000Z 17 APR 25 Searching for U2820... Searching the city database file for: U2820 ... Date:0000Z 17 APR 25 Station: U2820 WMO ident: 22820 Latitude: 61.82 Longitude: 34.27 ------------------------------------------------------------------------------- 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 1008 109 4.4 -1.6 65 6.0 1.9 110 1 276.9 277.5 274.7 286.2 3.37 1 1007 117 7.2 0.2 61 7.0 4.1 115 1 279.8 280.4 276.9 290.5 3.85 2 1003 150 11.8 4.8 62 7.0 8.2 135 3 284.7 285.6 281.2 299.8 5.37 3 1000 175 13.2 6.2 62 7.0 9.5 150 5 286.4 287.4 282.6 303.1 5.95 4 991 252 16.8 9.8 63 7.0 12.7 163 6 290.7 292.1 286.2 312.5 7.69 5 925 837 14.0 6.0 58 8.0 9.6 260 15 293.6 294.8 286.0 312.0 6.34 6 916 919 13.8 5.8 58 8.0 9.4 260 15 294.2 295.4 286.2 312.6 6.32 7 895 1113 10.2 2.2 58 8.0 6.2 260 14 292.5 293.4 284.2 307.0 5.01 8 885 1206 10.6 1.6 54 9.0 6.1 260 14 293.8 294.7 284.6 308.0 4.85 9 855 1491 6.2 -1.8 56 8.0 2.5 260 13 292.2 292.8 282.8 303.6 3.92 10 850 1539 6.4 -1.6 57 8.0 2.7 260 13 292.9 293.6 283.2 304.6 4.00 11 815 1882 3.6 -3.4 60 7.0 0.5 257 13 293.4 294.1 283.1 304.2 3.65 12 736 2695 -5.7 -9.7 73 4.0 -7.1 249 14 292.0 292.4 281.1 299.4 2.49 13 731 2749 -3.3 -7.7 72 4.4 -5.0 248 15 295.1 295.7 283.0 303.9 2.93 14 725 2814 -3.7 -8.4 70 4.7 -5.5 248 15 295.4 295.9 282.9 303.8 2.79 15 721 2858 -1.9 -6.9 69 5.0 -3.9 247 15 297.9 298.4 284.3 307.4 3.16 16 711 2969 -1.5 -8.5 59 7.0 -4.3 246 15 299.5 300.0 284.6 308.1 2.83 17 700 3093 -2.3 -11.3 50 9.0 -5.6 245 15 299.9 300.4 284.2 307.0 2.30 18 634 3871 -7.1 -26.1 20 19.0 -11.6 257 16 303.1 303.2 283.6 305.5 0.72 19 581 4547 -10.3 -27.3 23 17.0 -14.2 267 17 307.0 307.1 285.1 309.4 0.70 20 500 5680 -20.3 -40.3 15 20.0 -22.9 285 19 308.3 308.3 285.0 309.1 0.23 21 450 6447 -28.1 -46.1 16 18.0 -29.6 280 20 307.9 307.9 284.7 308.4 0.14 22 400 7280 -34.5 -50.5 18 16.0 -35.5 275 21 310.2 310.2 285.5 310.5 0.09 23 360 8009 -39.3 -54.3 19 15.0 -40.0 280 22 313.2 313.2 286.5 313.5 0.07 24 300 9230 -49.3 -65.3 14 16.0 -49.6 290 23 315.9 315.9 287.4 315.9 0.02 25 250 10390 -59.1 -75.1 11 16.0 -59.2 295 21 318.2 318.2 288.2 318.2 0.01 26 249 10415 -59.3 -75.3 11 16.0 -59.4 294 21 318.3 318.3 288.2 318.3 0.01 27 233 10831 -61.1 -78.1 9 17.0 -61.2 285 29 321.6 321.6 289.3 321.7 0.00 28 226 11022 -59.7 -76.7 9 17.0 -59.8 287 30 326.6 326.6 290.7 326.6 0.00 29 200 11790 -59.3 -76.3 9 17.0 -59.5 295 35 338.9 338.9 294.0 338.9 0.01 30 196 11916 -60.1 -77.1 9 17.0 -60.2 296 35 339.5 339.5 294.2 339.6 0.01 31 164 13040 -54.3 -71.3 11 17.0 -54.6 302 38 367.0 367.0 300.1 367.1 0.02 32 150 13610 -54.3 -71.3 11 17.0 -54.6 305 40 376.5 376.5 301.7 376.6 0.02 33 100 16210 -53.9 -72.9 8 19.0 -54.5 310 31 423.6 423.6 308.2 423.7 0.02 34 92 16744 -55.7 -74.7 8 19.0 -56.2 311 29 430.2 430.2 308.9 430.3 0.02 35 70 18500 -52.1 -71.1 8 19.0 -53.1 315 21 472.9 472.9 312.9 473.1 0.04 36 63 19183 -50.9 -70.9 8 20.0 -52.1 317 19 490.0 490.1 314.2 490.3 0.04 37 53 20303 -52.7 -72.7 7 20.0 -53.9 319 16 510.7 510.7 315.7 510.9 0.04 38 50 20680 -51.7 -72.7 6 21.0 -53.1 320 15 521.6 521.7 316.4 521.9 0.04 39 36 22816 -50.7 -72.7 6 22.0 -52.7 575.6 575.6 319.5 576.0 0.06 TRP 233 10831 -61.1 -78.1 9 17.0 -61.2 285 29 321.6 321.6 289.3 321.7 0.00 WND Sounding variables and indices 1000-500 mb thick: 5505.00 m Freezing level: 784.42 mb = 2196.72 m = 7207.00 ft Wetbulb zero: 809.93 mb = 1931.63 m = 6337.30 ft Precipitable water: 0.64 inches Sfc-500 mean rel hum: 43.88 % Est. max temperature: 19.84 C = 67.71 F Sfc-Lift cond lev (LCL): 918.78 mb = 893.75 m = 2932.22 ft T: 13.86 C 700-500 lapse rate: 6.96 C/km ThetaE index: 5.54 C Layer 895.0- 885.0 mb Conv cond level (CCL): 1007.00 mb = 117.26 m = 384.72 ft Mean mixing ratio: 6.69 g/kg Conv temperature: 8.08 C = 46.55 F Cap Strength: 3.16 C Lifted Index: 1.62 C Risk: Showers probable Lifted Index @300 mb: 3.94 C Lifted Index @700 mb: 1.49 C Showalter Index: 5.52 C Risk: None Total Totals Index: 45.40 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 26.70 C Cross Totals Index: 18.70 C K Index: 16.10 Risk: < 20 % chance of thunderstorms Sweat Index: 45.00 Risk: None Energy Index: 0.99 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 101.03 J/kg Max Up Vert Vel: 14.21 m/s Conv Inhibition (B-): 61.24 J/kg Cap Strength: 3.06 C Lift Cond Lev (LCL): 856.08 mb = 1480.52 m = 4857.29 ft Lev Free Conv (LFC): 811.08 mb = 1920.31 m = 6300.15 ft Equ Level (EL): 711.08 mb = 2968.08 m = 9737.69 ft B at Equ Level: 95.99 J/kg Max Parcel Lev (MPL): 591.08 mb = 4413.60 m = 14480.15 ft Wind level data Storm motion: 293 at 11 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 1008 109 110 1 -0.9 0.3 | 113 12 -11.4 4.8 1 1000 175 150 5 -2.5 4.3 | 124 16 -13.0 8.8 2 925 837 260 15 14.8 2.6 | 211 8 4.3 7.0 3 850 1539 260 13 12.8 2.3 | 199 7 2.3 6.7 4 700 3093 245 15 13.6 6.3 | 196 11 3.1 10.8 5 500 5680 285 19 18.4 -4.9 | 274 8 7.9 -0.5 6 400 7280 275 21 20.9 -1.8 | 256 11 10.4 2.6 7 300 9230 290 23 21.6 -7.9 | 287 12 11.1 -3.4 8 250 10390 295 21 19.0 -8.9 | 297 10 8.5 -4.4 9 233 10831 285 29 28.0 -7.5 | 280 18 17.5 -3.1 10 200 11790 295 35 31.7 -14.8 | 296 24 21.2 -10.4 11 150 13610 305 40 32.8 -22.9 | 310 29 22.3 -18.5 12 100 16210 310 31 23.7 -19.9 | 319 20 13.3 -15.5 13 70 18500 315 21 14.8 -14.8 | 337 11 4.4 -10.4 14 50 20680 320 15 9.6 -11.5 | 7 7 -0.9 -7.1 Wind Parameters Mean winds (0-6000m): 262.9 at 15.2 knts Storm direction: 292.9 at 11.4 knts Shear (0-3000m) pos: 2.6 neg: 0.7 tot: 3.2 10-3/s Storm rel Dir Shear (0-3000m): 83.7 deg Storm rel helicity (0-3000m) pos: 78.6 neg: -4.1 tot: 74.5 m^2/s^2 ave: 24.8 10^-3 m/s^2 rel: 0.64 Storm rel vorticity (0-3000m) horiz: 5.4 stream: 3.5 10^-3/s Energy-Hel index: 0.05 Bulk Rich Number: 4.09 Bulk Shear: 24.70 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 ------------------------------------------------------------------------------- 500 199 8 145 14| 12.3 0.0 12.3| 56.9 0.0 56.9 113.7 0.88| 17.0 14.9 1000 248 11 177 8| 7.8 0.0 7.8| 78.6 -0.9 77.7 77.7 0.83| 13.6 11.2 1500 254 12 185 8| 5.2 0.4 5.6| 78.6 -2.9 75.7 50.5 0.75| 9.5 7.1 2000 255 12 189 8| 3.9 0.4 4.3| 78.6 -3.1 75.6 37.8 0.71| 7.5 5.3 2500 254 13 191 8| 3.1 0.5 3.6| 78.6 -3.5 75.1 30.1 0.68| 6.3 4.2 3000 252 13 192 9| 2.6 0.7 3.2| 78.6 -4.1 74.5 24.8 0.64| 5.4 3.5 4000 253 14 196 9| 2.3 0.5 2.8| 89.6 -4.1 85.5 21.4 0.67| 4.7 3.1 5000 257 14 205 8| 2.1 0.4 2.5|100.2 -4.1 96.1 19.2 0.71| 4.2 3.0 6000 263 15 216 8| 1.8 0.4 2.2|106.3 -5.7 100.7 16.8 0.70| 3.9 2.7 Wrote GIF file: /home/apache/climate/data/raob//U2820/skewt/U2820.skewt.20250417.00.gif