UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025043012.upa.cvt Date: 1200Z 30 APR 25 Searching for U2820... Searching the city database file for: U2820 ... Date:1200Z 30 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 1003 108 3.4 -8.6 41 12.0 -0.7 360 5 276.3 276.6 272.3 281.9 1.99 1 1001 124 4.8 -9.2 35 14.0 -0.0 357 5 277.9 278.2 273.1 283.3 1.90 2 1000 132 4.4 -9.6 35 14.0 -0.4 355 5 277.5 277.9 272.8 282.8 1.84 3 996 164 2.0 -12.0 35 14.0 -2.3 354 5 275.5 275.7 271.0 279.8 1.53 4 925 753 -4.3 -15.3 42 11.0 -7.2 345 7 274.9 275.1 270.2 278.5 1.26 5 850 1412 -9.7 -18.7 48 9.0 -11.8 340 9 276.0 276.2 270.5 279.0 1.03 6 768 2183 -17.3 -24.3 54 7.0 -18.5 340 11 275.9 276.0 269.9 278.0 0.70 7 755 2311 -15.1 -22.1 55 7.0 -16.4 340 11 279.6 279.8 272.4 282.2 0.86 8 702 2860 -16.5 -28.5 35 12.0 -18.4 340 13 284.0 284.1 274.3 285.6 0.52 9 700 2881 -16.7 -28.7 35 12.0 -18.6 340 13 284.0 284.1 274.3 285.6 0.51 10 673 3175 -18.9 -31.9 31 13.0 -20.7 338 15 284.7 284.8 274.5 286.0 0.39 11 500 5330 -32.1 -48.1 19 16.0 -33.1 325 29 293.9 293.9 278.7 294.2 0.10 12 450 6066 -36.1 -53.1 16 17.0 -36.9 323 33 297.9 297.9 280.5 298.1 0.06 13 400 6870 -42.7 -59.7 14 17.0 -43.2 320 38 299.5 299.5 281.1 299.6 0.03 14 360 7572 -48.1 -66.1 11 18.0 -48.4 313 39 301.4 301.4 282.0 301.5 0.01 15 314 8465 -52.1 -70.1 10 18.0 -52.3 305 40 307.9 307.9 284.5 307.9 0.01 16 300 8760 -52.1 -70.1 10 18.0 -52.4 305 40 311.9 311.9 286.0 312.0 0.01 17 268 9489 -52.7 -71.7 8 19.0 -52.9 302 36 321.3 321.3 289.2 321.3 0.01 18 250 9940 -50.5 -69.5 9 19.0 -50.8 300 33 331.0 331.0 292.0 331.0 0.01 19 200 11400 -48.5 -68.5 8 20.0 -49.0 300 29 356.0 356.0 297.9 356.1 0.02 20 150 13280 -50.1 -72.1 6 22.0 -50.7 300 29 383.7 383.7 302.9 383.8 0.02 21 100 15930 -51.3 -73.3 6 22.0 -52.1 305 23 428.6 428.6 308.7 428.7 0.02 22 78 17538 -52.5 -74.5 5 22.0 -53.4 295 17 457.7 457.7 311.5 457.8 0.02 23 70 18240 -50.5 -73.5 5 23.0 -51.7 290 15 476.3 476.4 313.2 476.5 0.03 24 56 19695 -50.5 -72.5 6 22.0 -51.9 507.7 507.8 315.5 508.0 0.04 TRP 314 8465 -52.1 -70.1 10 18.0 -52.3 305 40 307.9 307.9 284.5 307.9 0.01 WND Sounding variables and indices 1000-500 mb thick: 5198.00 m Freezing level: 973.46 mb = 351.26 m = 1152.42 ft Wetbulb zero: Below ground Precipitable water: 0.15 inches Sfc-500 mean rel hum: 35.97 % Est. max temperature: 3.03 C = 37.45 F Sfc-Lift cond lev (LCL): 832.17 mb = 1573.11 m = 5161.06 ft T: -11.29 C 700-500 lapse rate: 6.29 C/km ThetaE index: 4.76 C Layer 1000.0- 850.0 mb Conv cond level (CCL): 778.73 mb = 2077.49 m = 6815.82 ft Mean mixing ratio: 1.38 g/kg Conv temperature: 3.02 C = 37.44 F Cap Strength: 6.80 C Lifted Index: 12.41 C Risk: None Lifted Index @300 mb: 23.17 C Lifted Index @700 mb: 6.54 C Showalter Index: 12.65 C Risk: None Total Totals Index: 35.80 C Risk: None Vertical Totals Index: 22.40 C Cross Totals Index: 13.40 C K Index: -8.30 Risk: None Sweat Index: 47.00 Risk: None Energy Index: 3.21 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1.68 J/kg Max Up Vert Vel: 1.83 m/s Conv Inhibition (B-): 34277.87 J/kg Cap Strength: 12.22 C Lift Cond Lev (LCL): 786.45 mb = 2002.49 m = 6569.77 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 1 at 13 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 1003 108 360 5 -0.0 -5.0 | 182 8 0.2 7.8 1 1000 132 355 5 0.4 -5.0 | 185 8 0.7 7.8 2 925 753 345 7 1.8 -6.8 | 199 6 2.1 6.0 3 850 1412 340 9 3.1 -8.5 | 217 5 3.3 4.3 4 700 2881 340 13 4.4 -12.2 | 263 5 4.7 0.6 5 500 5330 325 29 16.6 -23.8 | 303 20 16.9 -11.0 6 400 6870 320 38 24.4 -29.1 | 303 30 24.7 -16.3 7 314 8465 305 40 32.8 -22.9 | 287 35 33.0 -10.2 8 300 8760 305 40 32.8 -22.9 | 287 35 33.0 -10.2 9 250 9940 300 33 28.6 -16.5 | 277 29 28.8 -3.7 10 200 11400 300 29 25.1 -14.5 | 274 25 25.4 -1.7 11 150 13280 300 29 25.1 -14.5 | 274 25 25.4 -1.7 12 100 15930 305 23 18.8 -13.2 | 271 19 19.1 -0.4 13 70 18240 290 15 14.1 -5.1 | 242 16 14.3 7.7 Wind Parameters Mean winds (0-6000m): 331.1 at 17.1 knts Storm direction: 1.1 at 12.8 knts Shear (0-3000m) pos: 0.0 neg: 1.7 tot: 1.7 10-3/s Storm rel Dir Shear (0-3000m): 95.3 deg Storm rel helicity (0-3000m) pos: 13.4 neg: 0.0 tot: 13.4 m^2/s^2 ave: 4.5 10^-3 m/s^2 rel: 0.89 Storm rel vorticity (0-3000m) horiz: 1.8 stream: 1.6 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.09 Bulk Shear: 18.51 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 ------------------------------------------------------------------------------- 500 351 6 189 7| 0.0 2.0 2.0| 3.1 0.0 3.1 6.3 0.79| 2.1 1.7 1000 347 7 195 7| 0.0 1.9 1.9| 5.5 0.0 5.5 5.5 0.82| 1.9 1.6 1500 344 7 201 6| 0.0 1.8 1.8| 7.5 0.0 7.5 5.0 0.85| 1.8 1.5 2000 343 8 207 6| 0.0 1.7 1.7| 9.2 0.0 9.2 4.6 0.87| 1.7 1.5 2500 342 9 213 5| 0.0 1.6 1.6| 10.8 0.0 10.8 4.3 0.89| 1.6 1.5 3000 342 9 220 5| 0.0 1.7 1.7| 13.4 0.0 13.4 4.5 0.89| 1.8 1.6 4000 339 12 245 5| 0.0 2.2 2.2| 19.8 0.0 19.8 4.9 0.71| 2.2 1.6 5000 335 14 271 6| 0.0 2.4 2.4| 22.1 -0.0 22.1 4.4 0.53| 2.5 1.3 6000 331 17 284 9| 0.0 2.5 2.5| 23.7 -0.3 23.3 3.9 0.43| 2.6 1.1 Wrote GIF file: /home/apache/climate/data/raob//U2820/skewt/U2820.skewt.20250430.12.gif