UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042700.upa.cvt Date: 0000Z 27 APR 25 Searching for U2820... Searching the city database file for: U2820 ... Date:0000Z 27 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 112 -2.9 -9.9 58 7.0 -5.0 335 5 269.6 269.9 267.7 274.5 1.78 1 1000 175 -2.5 -8.5 63 6.0 -4.4 340 7 270.6 271.0 268.8 276.2 2.01 2 925 787 -7.5 -13.5 62 6.0 -9.1 20 25 271.6 271.9 268.5 275.7 1.46 3 850 1439 -12.3 -20.3 51 8.0 -13.9 15 27 273.3 273.4 268.5 275.9 0.89 4 700 2890 -22.9 -31.9 44 9.0 -23.9 350 19 277.1 277.2 270.1 278.3 0.38 5 636 3591 -24.5 -35.5 35 11.0 -25.6 356 26 283.0 283.1 273.4 283.9 0.29 6 542 4736 -33.1 -46.1 26 13.0 -33.8 5 36 286.0 286.0 274.8 286.4 0.11 7 500 5300 -36.1 -49.1 25 13.0 -36.7 10 42 289.0 289.0 276.3 289.3 0.09 8 400 6810 -45.5 -58.5 22 13.0 -45.8 10 52 295.9 295.9 279.6 296.0 0.04 9 364 7435 -49.5 -62.5 20 13.0 -49.7 5 56 298.6 298.6 280.7 298.7 0.02 10 341 7863 -49.3 -63.3 18 14.0 -49.6 3 52 304.5 304.5 283.2 304.6 0.02 11 334 7999 -49.3 -63.3 18 14.0 -49.6 3 51 306.3 306.3 284.0 306.4 0.02 12 302 8666 -45.9 -59.9 19 14.0 -46.3 0 44 320.1 320.1 288.8 320.2 0.04 13 300 8710 -46.3 -60.3 19 14.0 -46.7 360 44 320.1 320.1 288.8 320.2 0.04 14 250 9910 -47.7 -62.7 16 15.0 -48.1 350 35 335.2 335.2 293.2 335.3 0.03 15 200 11390 -47.3 -63.3 14 16.0 -47.9 355 25 357.9 357.9 298.3 358.0 0.04 16 150 13290 -48.5 -65.5 12 17.0 -49.1 320 17 386.5 386.5 303.3 386.7 0.04 17 100 15940 -50.9 -68.9 10 18.0 -51.7 290 9 429.4 429.4 308.8 429.6 0.04 18 70 18560 -52.9 -72.9 7 20.0 -53.8 270 7 471.2 471.2 312.7 471.4 0.03 19 50 20590 -54.7 -74.7 7 20.0 -55.7 260 11 514.6 514.6 315.9 514.8 0.03 20 30 23690 -57.5 -78.5 5 21.0 -58.7 235 9 587.9 587.9 320.0 588.1 0.03 21 23 25323 -58.7 -79.7 5 21.0 -60.0 225 10 630.8 630.8 321.9 631.0 0.03 22 20 26190 -55.3 -77.3 5 22.0 -57.3 220 11 666.9 666.9 323.3 667.3 0.05 23 10 30720 -42.9 -64.9 7 22.0 -50.8 110 7 859.4 859.7 328.7 866.1 0.62 24 8.3 31984 -40.1 -64.1 6 24.0 -50.3 917.5 917.9 329.9 927.0 0.83 TRP 364 7435 -49.5 -62.5 20 13.0 -49.7 5 56 298.6 298.6 280.7 298.7 0.02 WND Sounding variables and indices 1000-500 mb thick: 5125.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.16 inches Sfc-500 mean rel hum: 42.99 % Est. max temperature: 0.56 C = 33.00 F Sfc-Lift cond lev (LCL): 902.57 mb = 976.26 m = 3202.92 ft T: -8.89 C 700-500 lapse rate: 5.48 C/km ThetaE index: 0.45 C Layer 925.0- 850.0 mb Conv cond level (CCL): 840.48 mb = 1523.19 m = 4997.27 ft Mean mixing ratio: 1.68 g/kg Conv temperature: 0.97 C = 33.74 F Cap Strength: 8.98 C Lifted Index: 11.11 C Risk: None Lifted Index @300 mb: 31.38 C Lifted Index @700 mb: 2.92 C Showalter Index: 11.11 C Risk: None Total Totals Index: 39.60 C Risk: None Vertical Totals Index: 23.80 C Cross Totals Index: 15.80 C K Index: -5.50 Risk: None Sweat Index: 96.00 Risk: None Energy Index: 2.81 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 3.47 J/kg Max Up Vert Vel: 2.64 m/s Conv Inhibition (B-): 76618.64 J/kg Cap Strength: 11.04 C Lift Cond Lev (LCL): 870.65 mb = 1253.96 m = 4113.98 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 37 at 21 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 112 335 5 2.1 -4.5 | 230 20 15.0 12.6 1 1000 175 340 7 2.4 -6.6 | 235 19 15.3 10.6 2 925 787 20 25 -8.6 -23.5 | 326 8 4.4 -6.4 3 850 1439 15 27 -7.0 -26.1 | 327 11 5.9 -8.9 4 700 2890 350 19 3.3 -18.7 | 276 16 16.2 -1.6 5 500 5300 10 42 -7.3 -41.4 | 347 25 5.6 -24.2 6 400 6810 10 52 -9.0 -51.2 | 354 34 3.9 -34.1 7 364 7435 5 56 -4.9 -55.8 | 348 39 8.0 -38.7 8 300 8710 360 44 -0.0 -44.0 | 334 30 12.9 -26.9 9 250 9910 350 35 6.1 -34.5 | 312 26 19.0 -17.3 10 200 11390 355 25 2.2 -24.9 | 297 17 15.1 -7.8 11 150 13290 320 17 10.9 -13.0 | 260 24 23.8 4.1 12 100 15940 290 9 8.5 -3.1 | 237 26 21.4 14.1 13 70 18560 270 7 7.0 -0.0 | 229 26 19.9 17.1 14 50 20590 260 11 10.8 1.9 | 231 30 23.7 19.0 15 30 23690 235 9 7.4 5.2 | 222 30 20.3 22.3 16 20 26190 220 11 7.1 8.4 | 218 32 20.0 25.6 17 10 30720 110 7 -6.6 2.4 | 198 21 6.3 19.5 Wind Parameters Mean winds (0-6000m): 7.0 at 28.6 knts Storm direction: 37.0 at 21.5 knts Shear (0-3000m) pos: 3.9 neg: 2.0 tot: 5.8 10-3/s Storm rel Dir Shear (0-3000m): 53.3 deg Storm rel helicity (0-3000m) pos: 77.9 neg: -39.3 tot: 38.6 m^2/s^2 ave: 12.9 10^-3 m/s^2 rel: 0.27 Storm rel vorticity (0-3000m) horiz: 7.0 stream: 1.9 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.10 Bulk Shear: 35.10 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 ------------------------------------------------------------------------------- 500 360 12 250 14| 16.4 0.0 16.4| 54.5 0.0 54.5 109.0 0.83| 17.1 14.2 1000 14 18 275 8| 11.6 0.0 11.6| 69.2 0.0 69.2 69.2 0.81| 12.8 10.4 1500 15 21 294 8| 7.7 0.9 8.6| 69.3 -4.6 64.6 43.1 0.67| 9.6 6.4 2000 13 22 299 9| 5.8 1.7 7.5| 69.3 -18.2 51.1 25.6 0.44| 8.4 3.7 2500 10 22 297 10| 4.6 2.2 6.8| 69.3 -32.1 37.2 14.9 0.29| 7.6 2.2 3000 8 22 294 11| 3.9 2.0 5.8| 77.9 -39.3 38.6 12.9 0.27| 7.0 1.9 4000 5 23 297 12| 4.2 1.5 5.7|123.2 -39.3 84.0 21.0 0.41| 6.6 2.7 5000 6 25 308 13| 4.5 1.2 5.6|176.3 -39.3 137.0 27.4 0.49| 6.4 3.1 6000 7 29 320 15| 4.1 0.9 4.9|201.5 -39.3 162.2 27.0 0.49| 6.0 2.9 Wrote GIF file: /home/apache/climate/data/raob//U2820/skewt/U2820.skewt.20250427.00.gif