UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041912.upa.cvt Date: 1200Z 19 APR 25 Searching for U2820... Searching the city database file for: U2820 ... Date:1200Z 19 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 ------------------------------------------------------------------------------- 0 1000 79 315 3 SFC 996 112 9.4 8.8 96 0.6 9.1 315 3 282.9 284.1 282.4 302.6 7.15 2 995 121 10.8 9.5 92 1.3 10.1 315 3 284.4 285.7 283.4 305.1 7.50 3 954 470 8.2 7.4 95 0.8 7.8 315 5 285.2 286.3 283.0 304.0 6.78 4 925 726 10.0 9.4 96 0.6 9.7 315 7 289.5 290.9 286.1 312.2 8.02 5 909 872 11.0 10.4 96 0.6 10.6 307 11 292.0 293.6 287.7 316.9 8.74 6 884 1104 9.2 8.1 93 1.1 8.6 294 18 292.5 293.9 286.9 314.5 7.68 7 850 1430 8.8 7.3 90 1.5 7.9 275 27 295.4 296.7 287.9 317.3 7.57 8 826 1667 8.2 6.4 88 1.8 7.2 274 30 297.2 298.5 288.3 318.5 7.32 9 736 2607 0.6 -1.3 87 1.9 -0.3 268 41 298.8 299.7 286.4 312.9 4.73 10 700 3009 -0.7 -2.4 88 1.7 -1.5 265 46 301.7 302.6 287.3 315.6 4.58 11 668 3382 -2.5 -4.0 89 1.5 -3.2 265 45 303.8 304.5 287.7 316.8 4.26 12 500 5620 -16.7 -19.5 79 2.8 -17.5 265 40 312.7 313.0 288.1 318.1 1.63 13 449 6422 -22.1 -25.9 71 3.8 -22.9 267 44 315.7 315.9 288.5 319.2 1.03 14 400 7260 -30.3 -34.9 64 4.6 -30.9 270 48 315.6 315.7 287.9 317.4 0.49 15 393 7385 -31.5 -36.5 61 5.0 -32.1 270 48 315.6 315.7 287.8 317.2 0.43 16 342 8355 -37.1 -43.1 54 6.0 -37.6 270 51 320.8 320.9 289.3 321.8 0.25 17 305 9130 -45.5 -51.5 51 6.0 -45.7 270 54 319.7 319.7 288.8 320.1 0.11 18 300 9240 -45.7 -51.7 51 6.0 -46.0 270 54 320.9 321.0 289.2 321.4 0.11 19 250 10420 -54.3 -61.3 42 7.0 -54.4 280 60 325.3 325.3 290.4 325.5 0.04 20 237 10760 -56.1 -63.1 41 7.0 -56.2 280 61 327.6 327.6 291.1 327.8 0.03 21 234 10840 -57.5 -64.5 41 7.0 -57.6 280 62 326.7 326.7 290.8 326.8 0.03 22 229 10976 -58.7 -65.7 40 7.0 -58.7 280 62 327.0 327.0 290.9 327.1 0.02 23 206 11630 -64.3 -71.3 38 7.0 -64.4 280 62 328.1 328.1 291.2 328.2 0.01 24 200 11810 -65.3 -73.3 32 8.0 -65.4 280 62 329.3 329.4 291.5 329.4 0.01 25 197 11902 -65.9 -73.9 32 8.0 -66.0 275 60 329.8 329.8 291.7 329.9 0.01 26 192 12058 -66.1 -74.1 32 8.0 -66.1 275 58 331.9 331.9 292.3 332.0 0.01 27 176 12596 -58.9 -65.9 40 7.0 -59.0 277 51 352.1 352.1 297.1 352.3 0.03 28 150 13610 -54.5 -61.5 42 7.0 -54.7 280 38 376.2 376.2 301.6 376.5 0.06 29 143 13917 -53.9 -61.9 37 8.0 -54.2 281 38 382.4 382.4 302.7 382.7 0.06 30 100 16220 -53.1 -61.1 37 8.0 -53.5 285 38 425.1 425.2 308.4 425.7 0.10 31 70 18500 -54.1 -63.1 32 9.0 -54.6 290 19 468.6 468.7 312.6 469.3 0.11 32 56 19936 -54.3 -63.3 32 9.0 -55.0 310 18 499.1 499.1 314.9 499.9 0.14 33 50 20670 -50.9 -59.9 34 9.0 -52.0 320 17 523.5 523.6 316.6 525.1 0.24 34 49 20801 -50.9 -59.9 34 9.0 -52.0 321 17 526.6 526.6 316.8 528.1 0.24 35 45 21352 -53.1 -62.1 33 9.0 -54.0 326 17 534.2 534.3 317.2 535.5 0.20 36 30 23970 -51.7 -61.7 29 10.0 -53.2 350 19 603.7 603.8 320.9 606.1 0.32 37 27 24654 -50.3 -61.3 26 11.0 -52.3 347 21 626.1 626.2 321.9 629.0 0.37 38 20 26600 -52.5 -64.5 22 12.0 -54.6 340 27 675.5 675.6 323.7 678.2 0.33 39 17 27649 -52.9 -64.9 22 12.0 -55.2 706.3 706.5 324.7 709.5 0.37 TRP 197 11902 -65.9 -73.9 32 8.0 -66.0 275 60 329.8 329.8 291.7 329.9 0.01 WND 229 10976 -58.7 -65.7 40 7.0 -58.7 280 62 327.0 327.0 290.9 327.1 0.02 Sounding variables and indices 1000-500 mb thick: 5541.00 m Freezing level: 719.38 mb = 2792.51 m = 9161.68 ft Wetbulb zero: 739.64 mb = 2566.71 m = 8420.85 ft Precipitable water: 1.11 inches Sfc-500 mean rel hum: 87.74 % Est. max temperature: 22.17 C = 71.91 F Sfc-Lift cond lev (LCL): 987.03 mb = 187.40 m = 614.83 ft T: 10.30 C 700-500 lapse rate: 6.13 C/km ThetaE index: 5.60 C Layer 736.0- 700.0 mb Conv cond level (CCL): 996.00 mb = 112.27 m = 368.34 ft Mean mixing ratio: 7.60 g/kg Conv temperature: 9.71 C = 49.48 F Cap Strength: 4.96 C Lifted Index: 6.37 C Risk: None Lifted Index @300 mb: 8.80 C Lifted Index @700 mb: 4.00 C Showalter Index: 1.21 C Risk: Showers probable Total Totals Index: 49.50 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 25.50 C Cross Totals Index: 24.00 C K Index: 31.10 Risk: 60-80 % chance of thunderstorms Sweat Index: 191.60 Risk: None Energy Index: 0.10 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 39.06 J/kg Max Up Vert Vel: 8.84 m/s Conv Inhibition (B-): 44936.85 J/kg Cap Strength: 6.30 C Lift Cond Lev (LCL): 933.54 mb = 649.77 m = 2131.76 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 298 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 ---------------------------------------------------------- 0 996 112 315 3 2.1 -2.1 | 115 23 -20.8 9.9 1 925 726 315 7 4.9 -4.9 | 111 19 -18.0 7.1 2 850 1430 275 27 26.9 -2.4 | 202 10 4.0 9.7 3 700 3009 265 46 45.8 4.0 | 235 28 22.9 16.0 4 500 5620 265 40 39.8 3.5 | 228 23 16.9 15.5 5 400 7260 270 48 48.0 -0.0 | 244 28 25.1 12.0 6 300 9240 270 54 54.0 -0.0 | 249 33 31.1 12.0 7 250 10420 280 60 59.1 -10.4 | 267 36 36.2 1.6 8 229 10976 280 62 61.1 -10.8 | 268 38 38.1 1.3 9 200 11810 280 62 61.1 -10.8 | 268 38 38.1 1.3 10 197 11902 275 60 59.8 -5.2 | 260 37 36.9 6.8 11 150 13610 280 38 37.4 -6.6 | 250 15 14.5 5.4 12 100 16220 285 38 36.7 -9.8 | 261 14 13.8 2.2 13 70 18500 290 19 17.9 -6.5 | 137 7 -5.1 5.5 14 50 20670 320 17 10.9 -13.0 | 85 12 -12.0 -1.0 15 30 23970 350 19 3.3 -18.7 | 71 21 -19.6 -6.7 16 20 26600 340 27 9.2 -25.4 | 46 19 -13.7 -13.4 Wind Parameters Mean winds (0-6000m): 267.7 at 34.5 knts Storm direction: 297.7 at 25.9 knts Shear (0-3000m) pos: 0.0 neg: 7.5 tot: 7.5 10-3/s Storm rel Dir Shear (0-3000m): 119.3 deg Storm rel helicity (0-3000m) pos: 63.5 neg: -10.1 tot: 53.3 m^2/s^2 ave: 17.8 10^-3 m/s^2 rel: 0.41 Storm rel vorticity (0-3000m) horiz: 8.2 stream: 3.4 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.30 Bulk Shear: 131.75 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 ------------------------------------------------------------------------------- 500 315 5 114 22| 0.0 3.4 3.4| 0.0 -6.6 -6.6 -13.3 -0.36| 3.4 -1.2 1000 305 8 114 18| 0.0 7.8 7.8| 8.8 -9.3 -0.5 -0.5 0.09| 8.2 0.8 1500 286 13 130 13| 0.0 9.3 9.3| 32.9 -9.3 23.6 15.7 0.44| 10.2 4.5 2000 279 18 150 10| 0.0 8.5 8.5| 46.4 -9.3 37.1 18.5 0.46| 9.3 4.3 2500 275 22 175 10| 0.0 8.1 8.1| 57.4 -9.3 48.1 19.2 0.44| 8.7 3.9 3000 272 26 195 11| 0.0 7.5 7.5| 63.5 -10.1 53.3 17.8 0.41| 8.2 3.4 4000 270 30 212 14| 0.0 5.3 5.3| 63.5 -18.6 44.9 11.2 0.37| 6.4 2.4 5000 268 33 218 16| 0.0 4.0 4.0| 63.5 -27.1 36.4 7.3 0.33| 5.4 1.8 6000 268 35 221 18| 0.2 3.3 3.5| 77.6 -31.4 46.2 7.7 0.33| 4.8 1.6 Wrote GIF file: /home/apache/climate/data/raob//U2820/skewt/U2820.skewt.20250419.12.gif