UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042512.upa.cvt Date: 1200Z 25 APR 25 Searching for U2820... Searching the city database file for: U2820 ... Date:1200Z 25 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 1001 112 3.2 -6.8 48 10.0 -0.4 70 9 276.3 276.7 272.7 282.7 2.29 1 1000 120 3.4 -7.6 44 11.0 -0.5 70 9 276.5 276.9 272.6 282.6 2.15 2 998 136 4.0 -9.0 38 13.0 -0.5 70 9 277.3 277.6 272.8 282.8 1.93 3 992 185 1.8 -11.2 37 13.0 -2.3 69 9 275.6 275.9 271.3 280.2 1.63 4 979 291 1.8 -11.2 37 13.0 -2.3 69 9 276.6 276.9 271.9 281.3 1.66 5 954 498 -1.5 -13.5 39 12.0 -5.0 67 9 275.3 275.6 270.8 279.4 1.41 6 925 742 -3.5 -13.5 46 10.0 -6.3 65 9 275.7 276.0 271.1 279.9 1.46 7 850 1402 -9.5 -17.5 52 8.0 -11.4 30 15 276.2 276.4 270.8 279.5 1.14 8 811 1762 -13.9 -19.9 60 6.0 -15.1 25 13 275.3 275.4 269.9 278.1 0.97 9 746 2390 -18.5 -24.5 59 6.0 -19.5 17 8 276.9 277.0 270.5 279.0 0.70 10 731 2542 -15.9 -22.9 55 7.0 -17.2 14 7 281.4 281.5 273.3 283.9 0.83 11 700 2868 -17.1 -26.1 46 9.0 -18.6 10 5 283.5 283.7 274.3 285.5 0.65 12 692 2954 -17.5 -27.5 41 10.0 -19.1 5 5 284.0 284.1 274.5 285.8 0.58 13 622 3744 -22.9 -35.9 29 13.0 -24.4 321 7 286.6 286.7 275.4 287.6 0.29 14 500 5310 -33.5 -44.5 32 11.0 -34.2 230 11 292.2 292.2 278.0 292.7 0.15 15 473 5697 -35.5 -47.5 28 12.0 -36.2 228 13 294.4 294.4 279.0 294.8 0.11 16 405 6757 -43.9 -56.9 22 13.0 -44.3 221 19 296.9 296.9 280.0 297.0 0.04 17 400 6840 -44.1 -57.1 22 13.0 -44.5 220 19 297.7 297.7 280.4 297.8 0.04 18 316 8392 -52.3 -66.3 17 14.0 -52.5 235 25 307.0 307.0 284.2 307.1 0.02 19 300 8730 -50.3 -64.3 18 14.0 -50.5 240 25 314.5 314.5 286.9 314.5 0.02 20 292 8906 -49.5 -63.5 18 14.0 -49.8 242 26 318.0 318.0 288.1 318.1 0.03 21 250 9920 -47.9 -62.9 16 15.0 -48.3 255 29 334.9 334.9 293.0 335.0 0.03 22 200 11400 -46.5 -63.5 13 17.0 -47.1 260 25 359.1 359.1 298.5 359.3 0.04 23 152 13222 -46.3 -64.3 11 18.0 -47.1 255 25 388.8 388.8 303.6 389.0 0.04 24 150 13310 -46.5 -64.5 11 18.0 -47.3 255 25 389.9 389.9 303.8 390.1 0.04 25 100 15970 -49.9 -71.9 6 22.0 -50.8 260 19 431.3 431.3 309.0 431.4 0.02 26 85 17023 -52.7 -74.7 5 22.0 -53.5 262 17 446.2 446.2 310.5 446.3 0.02 27 70 18270 -54.1 -76.1 5 22.0 -54.9 265 15 468.6 468.7 312.5 468.7 0.02 28 50 20430 -55.1 -77.1 5 22.0 -56.1 255 19 513.6 513.6 315.9 513.8 0.02 29 37 22349 -55.5 -77.5 5 22.0 -56.7 255 14 558.8 558.8 318.6 559.0 0.03 30 30 23680 -57.1 -78.1 5 21.0 -58.3 255 11 589.0 589.0 320.1 589.2 0.03 31 25 24824 -59.1 -80.1 5 21.0 -60.3 275 10 614.8 614.8 321.3 614.9 0.03 32 23 25347 -57.3 -78.3 5 21.0 -58.8 284 10 634.9 634.9 322.1 635.2 0.04 33 20 26230 -56.3 -77.3 5 21.0 -58.2 300 9 663.8 663.9 323.2 664.3 0.05 34 16 27669 -49.7 -72.7 5 23.0 -53.7 729.1 729.2 325.4 730.3 0.13 35 13 29025 -50.5 -73.5 5 23.0 -54.8 771.0 771.0 326.5 772.3 0.14 36 11 30130 -44.5 -68.5 5 24.0 -51.6 830.5 830.7 328.0 834.1 0.34 37 10 30767 -45.1 -69.1 5 24.0 -52.3 851.2 851.4 328.5 854.9 0.35 TRP 316 8392 -52.3 -66.3 17 14.0 -52.5 235 25 307.0 307.0 284.2 307.1 0.02 WND Sounding variables and indices 1000-500 mb thick: 5190.00 m Freezing level: 965.36 mb = 403.71 m = 1324.48 ft Wetbulb zero: Below ground Precipitable water: 0.17 inches Sfc-500 mean rel hum: 42.20 % Est. max temperature: 3.12 C = 37.61 F Sfc-Lift cond lev (LCL): 856.86 mb = 1339.28 m = 4393.89 ft T: -8.93 C 700-500 lapse rate: 6.72 C/km ThetaE index: 2.57 C Layer 992.0- 979.0 mb Conv cond level (CCL): 797.42 mb = 1888.65 m = 6196.28 ft Mean mixing ratio: 1.52 g/kg Conv temperature: 2.53 C = 36.55 F Cap Strength: 7.02 C Lifted Index: 10.25 C Risk: None Lifted Index @300 mb: 24.27 C Lifted Index @700 mb: 5.44 C Showalter Index: 10.84 C Risk: None Total Totals Index: 40.00 C Risk: None Vertical Totals Index: 24.00 C Cross Totals Index: 16.00 C K Index: -2.50 Risk: None Sweat Index: 41.00 Risk: None Energy Index: 2.76 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 8.14 J/kg Max Up Vert Vel: 4.03 m/s Conv Inhibition (B-): 5.53 J/kg Cap Strength: 10.17 C Lift Cond Lev (LCL): 793.99 mb = 1921.08 m = 6302.67 ft Lev Free Conv (LFC): 788.99 mb = 1968.61 m = 6458.60 ft Equ Level (EL): 758.99 mb = 2260.27 m = 7415.48 ft B at Equ Level: 8.00 J/kg Max Parcel Lev (MPL): 738.99 mb = 2460.91 m = 8073.75 ft Wind level data Storm motion: 22 at 7 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 1001 112 70 9 -8.5 -3.1 | 123 7 -5.8 3.7 1 1000 120 70 9 -8.5 -3.1 | 123 7 -5.8 3.7 2 925 742 65 9 -8.2 -3.8 | 118 6 -5.5 3.0 3 850 1402 30 15 -7.5 -13.0 | 38 8 -4.8 -6.2 4 700 2868 10 5 -0.9 -4.9 | 225 3 1.8 1.8 5 500 5310 230 11 8.4 7.1 | 219 18 11.1 13.8 6 400 6840 220 19 12.2 14.6 | 215 26 14.9 21.3 7 316 8392 235 25 20.5 14.3 | 228 31 23.2 21.1 8 300 8730 240 25 21.7 12.5 | 232 31 24.3 19.3 9 250 9920 255 29 28.0 7.5 | 245 34 30.7 14.3 10 200 11400 260 25 24.6 4.3 | 248 29 27.3 11.1 11 150 13310 255 25 24.1 6.5 | 244 30 26.8 13.2 12 100 15970 260 19 18.7 3.3 | 245 24 21.4 10.1 13 70 18270 265 15 14.9 1.3 | 245 19 17.6 8.1 14 50 20430 255 19 18.4 4.9 | 241 24 21.0 11.7 15 30 23680 255 11 10.6 2.8 | 234 16 13.3 9.6 16 20 26230 300 9 7.8 -4.5 | 258 11 10.5 2.3 Wind Parameters Mean winds (0-6000m): 351.7 at 9.7 knts Storm direction: 21.7 at 7.3 knts Shear (0-3000m) pos: 0.0 neg: 1.6 tot: 1.6 10-3/s Storm rel Dir Shear (0-3000m): 126.5 deg Storm rel helicity (0-3000m) pos: 0.8 neg: -20.5 tot: -19.8 m^2/s^2 ave: -6.6 10^-3 m/s^2 rel: -0.63 Storm rel vorticity (0-3000m) horiz: 3.8 stream: -2.4 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.46 Bulk Shear: 17.72 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 68 9 121 7| 0.0 0.6 0.6| 0.0 -0.7 -0.7 -1.3 -0.60| 0.6 -0.4 1000 62 10 111 6| 0.0 2.9 2.9| 0.0 -8.9 -8.9 -8.9 -0.94| 3.0 -2.8 1500 49 11 85 6| 0.0 3.2 3.2| 0.0 -17.8 -17.8 -11.8 -0.87| 4.0 -3.5 2000 42 11 72 5| 0.0 2.1 2.1| 0.0 -19.3 -19.3 -9.6 -0.74| 4.0 -3.0 2500 39 11 69 4| 0.0 1.6 1.6| 0.0 -20.2 -20.2 -8.1 -0.74| 3.9 -2.9 3000 37 10 70 3| 0.0 1.6 1.6| 0.8 -20.5 -19.8 -6.6 -0.63| 3.8 -2.4 4000 26 9 41 2| 0.0 2.0 2.0| 1.7 -23.2 -21.5 -5.4 -0.48| 3.8 -1.8 5000 18 9 2 2| 0.0 2.0 2.0| 1.7 -48.6 -46.9 -9.4 -0.54| 4.0 -2.2 6000 352 10 305 5| 0.0 2.0 2.0| 1.7 -60.3 -58.6 -9.8 -0.52| 3.9 -2.0 Wrote GIF file: /home/apache/climate/data/raob//U2820/skewt/U2820.skewt.20250425.12.gif