UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041800.upa.cvt Date: 0000Z 18 APR 25 Searching for U2820... Searching the city database file for: U2820 ... Date:0000Z 18 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 1004 109 7.2 5.3 88 1.9 6.2 225 5 280.0 281.0 279.2 295.3 5.56 1 1000 142 8.4 6.0 85 2.4 7.2 235 5 281.5 282.6 280.3 297.7 5.86 2 994 192 9.6 7.2 85 2.4 8.3 230 5 283.2 284.3 281.7 301.0 6.41 3 970 395 9.4 7.0 85 2.4 8.1 212 4 285.0 286.1 282.6 303.1 6.48 4 959 490 11.0 8.4 84 2.6 9.6 203 4 287.6 288.8 284.5 307.9 7.22 5 925 791 8.8 5.2 78 3.6 6.9 175 3 288.3 289.4 283.5 305.3 6.00 6 905 971 7.2 3.1 75 4.1 5.1 175 5 288.5 289.4 282.8 303.5 5.28 7 850 1485 5.2 2.1 80 3.1 3.7 175 11 291.6 292.5 284.1 306.7 5.24 8 820 1778 4.4 1.6 82 2.8 3.0 189 10 293.8 294.7 284.9 309.0 5.24 9 794 2040 2.2 -0.4 83 2.6 1.0 201 9 294.1 295.0 284.5 307.8 4.68 10 774 2247 3.8 1.0 82 2.8 2.4 211 8 298.0 299.0 286.6 313.8 5.32 11 763 2363 3.6 0.5 80 3.1 2.1 217 8 299.0 300.0 286.9 314.5 5.20 12 704 3012 -0.3 -9.3 51 9.0 -3.8 248 5 301.7 302.2 285.3 310.0 2.68 13 700 3058 0.0 -9.0 51 9.0 -3.6 250 5 302.5 303.0 285.7 311.0 2.76 14 663 3493 0.2 -15.8 29 16.0 -5.4 271 6 307.4 307.8 286.4 312.9 1.68 15 598 4310 -6.5 -31.5 12 25.0 -12.0 311 7 308.9 309.0 285.5 310.5 0.46 16 500 5680 -17.3 -43.3 8 26.0 -20.7 20 9 311.9 312.0 286.2 312.6 0.17 17 487 5876 -18.9 -44.9 8 26.0 -22.1 20 9 312.3 312.4 286.4 312.9 0.14 18 400 7300 -32.3 -58.3 6 26.0 -33.7 20 11 313.0 313.0 286.4 313.2 0.04 19 393 7424 -33.7 -58.7 6 25.0 -34.9 21 12 312.8 312.8 286.4 312.9 0.04 20 314 8950 -46.9 -69.9 6 23.0 -47.3 37 19 315.1 315.1 287.1 315.2 0.01 21 300 9250 -48.5 -71.5 5 23.0 -48.9 40 21 317.0 317.0 287.8 317.0 0.01 22 289 9494 -50.3 -73.3 5 23.0 -50.6 28 18 317.8 317.8 288.1 317.9 0.01 23 250 10420 -59.3 -79.3 6 20.0 -59.5 340 5 317.9 317.9 288.1 317.9 0.00 24 229 10965 -63.5 -83.5 5 20.0 -63.6 350 15 319.6 319.6 288.6 319.6 0.00 25 223 11128 -63.7 -83.7 5 20.0 -63.8 343 17 321.7 321.7 289.3 321.7 0.00 26 217 11296 -62.1 -82.1 5 20.0 -62.2 336 18 326.7 326.7 290.7 326.7 0.00 27 209 11528 -63.5 -83.5 5 20.0 -63.6 326 20 328.0 328.0 291.2 328.1 0.00 28 200 11800 -60.9 -80.9 5 20.0 -61.0 315 23 336.3 336.3 293.4 336.3 0.00 29 190 12121 -56.9 -77.9 5 21.0 -57.1 313 24 347.7 347.7 296.1 347.7 0.00 30 175 12641 -57.3 -78.3 5 21.0 -57.5 310 25 355.3 355.3 297.8 355.4 0.00 31 158 13295 -51.7 -73.7 5 22.0 -52.2 307 26 375.4 375.4 301.5 375.4 0.01 32 150 13630 -53.3 -75.3 5 22.0 -53.7 305 27 378.2 378.2 302.0 378.3 0.01 33 114 15386 -56.3 -77.3 5 21.0 -56.7 308 27 403.5 403.5 305.7 403.6 0.01 34 100 16220 -55.7 -77.7 5 22.0 -56.2 310 27 420.1 420.1 307.7 420.2 0.01 35 70 18500 -53.7 -75.7 5 22.0 -54.5 320 21 469.5 469.5 312.6 469.6 0.02 36 50 20660 -53.3 -75.3 5 22.0 -54.5 325 17 517.9 517.9 316.2 518.0 0.03 37 47 21059 -53.1 -75.1 5 22.0 -54.4 527.6 527.6 316.8 527.8 0.03 38 42 21787 -50.9 -72.9 6 22.0 -52.6 550.3 550.3 318.1 550.6 0.05 39 39 22268 -52.5 -74.5 5 22.0 -54.1 558.0 558.0 318.5 558.3 0.04 TRP 229 10965 -63.5 -83.5 5 20.0 -63.6 350 15 319.6 319.6 288.6 319.6 0.00 WND Sounding variables and indices 1000-500 mb thick: 5538.00 m Freezing level: 708.54 mb = 2962.39 m = 9719.01 ft Freezing level: 700.00 mb = 3058.00 m = 10032.69 ft Freezing level: 661.06 mb = 3517.34 m = 11539.68 ft Wetbulb zero: 742.36 mb = 2584.33 m = 8478.67 ft Precipitable water: 0.72 inches Sfc-500 mean rel hum: 48.51 % Est. max temperature: 18.54 C = 65.37 F Sfc-Lift cond lev (LCL): 975.21 mb = 350.72 m = 1150.64 ft T: 9.44 C 700-500 lapse rate: 6.60 C/km ThetaE index: 4.55 C Layer 704.0- 700.0 mb Conv cond level (CCL): 817.16 mb = 1806.49 m = 5926.75 ft Mean mixing ratio: 6.32 g/kg Conv temperature: 20.99 C = 69.77 F Cap Strength: 10.20 C Lifted Index: 8.81 C Risk: None Lifted Index @300 mb: 9.25 C Lifted Index @700 mb: 7.13 C Showalter Index: 7.11 C Risk: None Total Totals Index: 41.90 C Risk: None Vertical Totals Index: 22.50 C Cross Totals Index: 19.40 C K Index: 15.60 Risk: < 20 % chance of thunderstorms Sweat Index: 56.20 Risk: None Energy Index: 1.34 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 29.44 J/kg Max Up Vert Vel: 7.67 m/s Conv Inhibition (B-): 32222.88 J/kg Cap Strength: 10.16 C Lift Cond Lev (LCL): 911.35 mb = 913.56 m = 2997.21 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 262 at 5 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 1004 109 225 5 3.5 3.5 | 148 3 -1.7 2.8 1 1000 142 235 5 4.1 2.9 | 151 2 -1.2 2.1 2 925 791 175 3 -0.3 3.0 | 112 6 -5.5 2.2 3 850 1485 175 11 -1.0 11.0 | 149 12 -6.2 10.2 4 700 3058 250 5 4.7 1.7 | 149 1 -0.6 1.0 5 500 5680 20 9 -3.1 -8.5 | 42 12 -8.4 -9.2 6 400 7300 20 11 -3.8 -10.3 | 39 14 -9.0 -11.1 7 300 9250 40 21 -13.5 -16.1 | 48 25 -18.8 -16.8 8 250 10420 340 5 1.7 -4.7 | 33 7 -3.6 -5.4 9 229 10965 350 15 2.6 -14.8 | 10 16 -2.7 -15.5 10 200 11800 315 23 16.3 -16.3 | 327 20 11.0 -17.0 11 150 13630 305 27 22.1 -15.5 | 314 23 16.8 -16.2 12 100 16220 310 27 20.7 -17.4 | 320 24 15.4 -18.1 13 70 18500 320 21 13.5 -16.1 | 334 19 8.2 -16.8 14 50 20660 325 17 9.8 -13.9 | 343 15 4.5 -14.7 Wind Parameters Mean winds (0-6000m): 231.9 at 7.1 knts Storm direction: 261.9 at 5.3 knts Shear (0-3000m) pos: 1.3 neg: 0.9 tot: 2.2 10-3/s Storm rel Dir Shear (0-3000m): 3.0 deg Storm rel helicity (0-3000m) pos: 20.4 neg: -3.5 tot: 16.9 m^2/s^2 ave: 5.6 10^-3 m/s^2 rel: 0.23 Storm rel vorticity (0-3000m) horiz: 4.1 stream: 1.0 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 23.61 Bulk Shear: 1.25 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 ------------------------------------------------------------------------------- 500 218 4 136 4| 0.0 2.9 2.9| 0.0 -2.1 -2.1 -4.2 -0.57| 3.4 -2.0 1000 199 4 131 5| 0.0 2.7 2.7| 4.9 -3.1 1.7 1.7 0.00| 4.0 0.0 1500 186 6 138 7| 1.4 1.8 3.1| 13.2 -3.1 10.1 6.7 0.23| 4.5 1.1 2000 188 7 144 7| 1.1 1.3 2.4| 18.9 -3.1 15.8 7.9 0.31| 4.5 1.4 2500 192 7 148 7| 1.2 1.1 2.3| 20.4 -3.1 17.3 6.9 0.30| 4.4 1.3 3000 194 7 148 7| 1.3 0.9 2.2| 20.4 -3.5 16.9 5.6 0.23| 4.1 1.0 4000 209 7 158 5| 1.5 0.7 2.2| 21.1 -3.5 17.6 4.4 0.25| 3.8 1.0 5000 224 7 172 4| 1.5 0.5 2.1| 28.1 -3.5 24.6 4.9 0.30| 3.7 1.1 6000 232 7 185 4| 1.4 0.4 1.8| 37.9 -4.1 33.8 5.6 0.34| 3.5 1.2 Wrote GIF file: /home/apache/climate/data/raob//U2820/skewt/U2820.skewt.20250418.00.gif