UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042300.upa.cvt Date: 0000Z 23 APR 25 Searching for U2820... Searching the city database file for: U2820 ... Date:0000Z 23 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 1006 107 2.2 -3.8 64 6.0 -0.1 90 5 274.9 275.4 272.8 282.8 2.86 1 1000 155 2.6 -3.4 65 6.0 0.3 100 7 275.8 276.2 273.4 284.0 2.97 2 988 253 4.4 -1.6 65 6.0 1.9 112 9 278.5 279.1 275.6 288.1 3.44 3 951 564 5.2 -3.8 52 9.0 1.5 148 15 282.4 282.9 277.2 291.0 3.03 4 946 607 4.8 -4.2 52 9.0 1.2 153 16 282.4 282.9 277.0 290.8 2.96 5 925 790 3.2 -4.8 56 8.0 0.0 175 19 282.6 283.1 277.0 290.8 2.89 6 850 1468 -2.1 -6.4 72 4.3 -3.7 165 7 283.9 284.4 277.6 291.9 2.78 7 826 1695 -4.1 -8.1 74 4.0 -5.5 176 8 284.2 284.6 277.4 291.4 2.51 8 810 1849 -3.7 -7.5 75 3.8 -5.1 184 8 286.2 286.7 278.6 294.0 2.68 9 793 2017 -1.3 -4.7 78 3.4 -2.7 192 9 290.5 291.1 281.5 300.4 3.40 10 728 2693 -5.5 -8.1 82 2.6 -6.5 225 12 293.1 293.6 282.0 301.6 2.85 11 700 3000 -7.1 -9.6 82 2.5 -8.0 240 13 294.6 295.1 282.4 302.5 2.63 12 614 4011 -11.7 -14.6 79 2.9 -12.6 246 24 300.6 301.0 284.1 306.8 2.01 13 500 5550 -22.1 -25.8 72 3.7 -22.8 255 42 306.1 306.3 285.0 309.2 0.93 14 491 5684 -22.9 -26.7 71 3.8 -23.6 255 43 306.7 306.9 285.2 309.6 0.88 15 432 6607 -31.3 -35.4 67 4.1 -31.8 258 52 307.5 307.5 284.9 309.0 0.43 16 400 7150 -34.3 -38.9 63 4.6 -34.7 260 58 310.4 310.5 285.9 311.6 0.33 17 399 7167 -34.5 -39.1 63 4.6 -34.9 260 58 310.4 310.4 285.9 311.5 0.32 18 300 9090 -49.5 -55.5 49 6.0 -49.7 265 75 315.6 315.6 287.3 315.8 0.07 19 289 9333 -51.3 -57.3 49 6.0 -51.4 265 76 316.4 316.4 287.6 316.6 0.06 20 260 10012 -56.0 -62.0 47 6.0 -56.1 265 79 319.3 319.3 288.5 319.4 0.04 21 250 10260 -57.7 -63.7 46 6.0 -57.8 270 79 320.3 320.3 288.9 320.4 0.03 22 238 10568 -61.1 -68.1 39 7.0 -61.2 270 77 319.7 319.7 288.6 319.8 0.02 23 231 10754 -61.1 -68.1 39 7.0 -61.2 269 73 322.4 322.4 289.5 322.5 0.02 24 216 11174 -58.5 -64.5 46 6.0 -58.6 267 64 332.7 332.7 292.5 332.8 0.03 25 200 11660 -56.9 -63.9 41 7.0 -57.1 265 54 342.7 342.7 295.0 342.8 0.04 26 167 12810 -53.3 -60.3 42 7.0 -53.5 271 42 366.8 366.8 300.1 367.1 0.07 27 150 13500 -53.7 -60.7 42 7.0 -53.9 275 35 377.5 377.6 301.9 377.9 0.07 28 100 16110 -53.7 -61.7 37 8.0 -54.1 280 31 424.0 424.0 308.2 424.5 0.09 29 70 18390 -55.1 -63.1 36 8.0 -55.6 295 25 466.5 466.5 312.4 467.2 0.11 30 54 20056 -53.7 -62.7 32 9.0 -54.4 307 25 505.7 505.7 315.4 506.6 0.15 31 50 20550 -54.7 -63.7 32 9.0 -55.4 310 25 514.6 514.6 316.0 515.5 0.15 32 31 23593 -57.3 -67.3 27 10.0 -58.2 329 14 582.9 583.0 319.9 584.0 0.14 33 30 23800 -57.5 -67.5 27 10.0 -58.4 330 13 587.9 587.9 320.1 588.9 0.14 34 25 24954 -55.5 -65.5 28 10.0 -56.8 328 17 625.1 625.2 321.7 626.9 0.23 35 20 26370 -56.7 -66.7 27 10.0 -58.0 325 21 662.6 662.7 323.2 664.6 0.24 36 16 27776 -59.3 -69.3 26 10.0 -60.6 697.8 697.9 324.4 699.6 0.21 37 13 29089 -55.3 -66.3 24 11.0 -57.5 754.3 754.5 326.1 758.1 0.39 TRP 238 10568 -61.1 -68.1 39 7.0 -61.2 270 77 319.7 319.7 288.6 319.8 0.02 WND 260 10012 -56.0 -62.0 47 6.0 -56.1 265 79 319.3 319.3 288.5 319.4 0.04 Sounding variables and indices 1000-500 mb thick: 5395.00 m Freezing level: 879.72 mb = 1199.36 m = 3934.86 ft Wetbulb zero: Below ground Precipitable water: 0.55 inches Sfc-500 mean rel hum: 73.76 % Est. max temperature: 11.17 C = 52.11 F Sfc-Lift cond lev (LCL): 916.46 mb = 864.41 m = 2835.97 ft T: 2.62 C 700-500 lapse rate: 5.88 C/km ThetaE index: 0.52 C Layer 826.0- 810.0 mb Conv cond level (CCL): 681.36 mb = 3208.18 m = 10525.39 ft Mean mixing ratio: 3.06 g/kg Conv temperature: 23.20 C = 73.77 F Cap Strength: 12.19 C Lifted Index: 14.56 C Risk: None Lifted Index @300 mb: 18.62 C Lifted Index @700 mb: 8.93 C Showalter Index: 12.68 C Risk: None Total Totals Index: 35.70 C Risk: None Vertical Totals Index: 20.00 C Cross Totals Index: 15.70 C K Index: 11.10 Risk: None Sweat Index: 56.00 Risk: None Energy Index: 3.62 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 25.55 J/kg Max Up Vert Vel: 7.15 m/s Conv Inhibition (B-): 56010.28 J/kg Cap Strength: 14.33 C Lift Cond Lev (LCL): 849.43 mb = 1473.33 m = 4833.70 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 271 at 16 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 1006 107 90 5 -5.0 0.0 | 91 21 -21.1 0.2 1 1000 155 100 7 -6.9 1.2 | 94 23 -23.0 1.4 2 925 790 175 19 -1.7 18.9 | 137 26 -17.8 19.1 3 850 1468 165 7 -1.8 6.8 | 111 19 -17.9 7.0 4 700 3000 240 13 11.3 6.5 | 144 8 -4.9 6.7 5 500 5550 255 42 40.6 10.9 | 246 27 24.5 11.1 6 400 7150 260 58 57.1 10.1 | 256 42 41.0 10.3 7 300 9090 265 75 74.7 6.5 | 263 59 58.6 6.7 8 260 10012 265 79 78.7 6.9 | 264 63 62.6 7.1 9 250 10260 270 79 79.0 -0.0 | 270 63 62.9 0.2 10 238 10568 270 77 77.0 -0.0 | 270 61 60.9 0.2 11 200 11660 265 54 53.8 4.7 | 263 38 37.7 4.9 12 150 13500 275 35 34.9 -3.1 | 279 19 18.8 -2.8 13 100 16110 280 31 30.5 -5.4 | 290 15 14.4 -5.2 14 70 18390 295 25 22.7 -10.6 | 328 12 6.5 -10.4 15 50 20550 310 25 19.2 -16.1 | 349 16 3.0 -15.9 16 30 23800 330 13 6.5 -11.3 | 41 15 -9.6 -11.1 17 20 26370 325 21 12.0 -17.2 | 13 17 -4.1 -17.0 Wind Parameters Mean winds (0-6000m): 240.7 at 21.5 knts Storm direction: 270.7 at 16.1 knts Shear (0-3000m) pos: 3.2 neg: 0.0 tot: 3.2 10-3/s Storm rel Dir Shear (0-3000m): 62.0 deg Storm rel helicity (0-3000m) pos: 178.8 neg: -57.1 tot: 121.7 m^2/s^2 ave: 40.6 10^-3 m/s^2 rel: 0.41 Storm rel vorticity (0-3000m) horiz: 8.6 stream: 3.5 10^-3/s Energy-Hel index: 0.03 Bulk Rich Number: 0.28 Bulk Shear: 92.80 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 ------------------------------------------------------------------------------- 500 135 11 108 25| 14.4 0.0 14.4| 92.8 0.0 92.8 185.5 0.87| 16.2 14.1 1000 163 14 123 24| 6.9 0.0 6.9|142.3 -28.4 113.8 113.8 0.58| 14.6 8.4 1500 165 12 122 23| 2.9 0.0 2.9|145.7 -57.1 88.5 59.0 0.33| 12.2 4.1 2000 169 11 122 22| 3.1 0.0 3.1|161.2 -57.1 104.0 52.0 0.38| 10.2 3.9 2500 178 11 124 20| 3.1 0.0 3.1|172.0 -57.1 114.8 45.9 0.40| 9.2 3.7 3000 190 11 129 18| 3.2 0.0 3.2|178.8 -57.1 121.7 40.6 0.41| 8.6 3.5 4000 212 13 142 15| 3.9 0.0 3.9|204.2 -57.1 147.1 36.8 0.50| 7.9 4.0 5000 230 17 165 12| 4.3 0.0 4.3|235.9 -57.1 178.7 35.7 0.52| 7.6 3.9 6000 241 21 194 11| 4.5 0.0 4.5|270.2 -57.1 213.1 35.5 0.51| 7.2 3.7 Wrote GIF file: /home/apache/climate/data/raob//U2820/skewt/U2820.skewt.20250423.00.gif