UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042800.upa.cvt Date: 0000Z 28 APR 25 Searching for U2820... Searching the city database file for: U2820 ... Date:0000Z 28 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 108 -1.1 -10.1 50 9.0 -3.8 225 7 271.4 271.7 268.8 276.3 1.76 1 1000 172 0.6 -9.4 47 10.0 -2.6 230 11 273.8 274.1 270.5 279.0 1.87 2 988 269 2.6 -7.4 48 10.0 -0.9 237 11 276.7 277.1 272.8 282.9 2.21 3 925 798 -1.1 -14.1 37 13.0 -4.9 275 13 278.2 278.4 272.4 282.2 1.39 4 889 1112 -4.7 -17.7 35 13.0 -8.0 284 13 277.6 277.8 271.6 280.8 1.07 5 850 1463 -7.5 -19.5 38 12.0 -10.3 295 13 278.3 278.5 271.8 281.1 0.96 6 761 2312 -14.7 -20.7 60 6.0 -15.9 301 16 279.4 279.6 272.5 282.3 0.97 7 700 2942 -16.5 -21.5 65 5.0 -17.5 305 19 284.2 284.4 275.2 287.2 0.98 8 654 3451 -18.5 -23.4 65 4.9 -19.4 309 22 287.5 287.7 276.8 290.3 0.89 9 612 3945 -19.9 -25.9 59 6.0 -21.0 313 25 291.4 291.6 278.5 293.8 0.76 10 500 5420 -28.3 -35.3 51 7.0 -29.1 325 35 298.5 298.6 281.3 299.8 0.38 11 486 5623 -29.5 -36.5 51 7.0 -30.2 326 35 299.5 299.6 281.6 300.7 0.35 12 400 6980 -39.7 -47.7 42 8.0 -40.1 330 38 303.4 303.4 283.0 303.9 0.13 13 349 7897 -46.3 -54.3 40 8.0 -46.6 330 41 306.5 306.6 284.1 306.8 0.07 14 303 8816 -54.5 -62.5 37 8.0 -54.6 330 44 307.6 307.7 284.5 307.8 0.03 15 300 8880 -54.5 -62.5 37 8.0 -54.6 330 44 308.5 308.5 284.8 308.6 0.03 16 280 9316 -57.1 -65.1 36 8.0 -57.2 325 46 310.9 310.9 285.7 311.0 0.02 17 250 10030 -56.3 -64.3 36 8.0 -56.4 325 46 322.4 322.4 289.5 322.5 0.03 18 208 11207 -54.1 -63.1 32 9.0 -54.3 325 35 343.2 343.2 295.1 343.4 0.04 19 200 11460 -53.1 -62.1 33 9.0 -53.4 325 33 348.7 348.7 296.4 348.9 0.04 20 186 11928 -51.3 -60.3 33 9.0 -51.6 324 31 358.9 358.9 298.5 359.2 0.06 21 150 13320 -51.5 -61.5 29 10.0 -51.9 320 25 381.3 381.3 302.5 381.6 0.06 22 100 15950 -53.1 -64.1 25 11.0 -53.6 280 11 425.1 425.1 308.3 425.5 0.07 23 85 16999 -50.9 -61.9 26 11.0 -51.6 280 10 449.8 449.8 310.9 450.4 0.11 24 70 18250 -53.9 -65.9 22 12.0 -54.6 280 9 469.1 469.1 312.6 469.5 0.08 25 66 18628 -54.1 -66.1 22 12.0 -54.8 274 9 476.6 476.6 313.2 477.1 0.08 26 50 20410 -54.3 -67.3 19 13.0 -55.2 245 11 515.5 515.5 316.1 516.1 0.09 27 46 20946 -53.1 -66.1 19 13.0 -54.2 238 11 530.9 530.9 317.0 531.6 0.11 28 30 23670 -58.3 -71.3 17 13.0 -59.2 205 11 585.7 585.7 320.0 586.3 0.08 29 29 23884 -59.1 -73.1 15 14.0 -60.0 206 12 589.2 589.2 320.1 589.7 0.07 30 20 26250 -53.9 -67.9 16 14.0 -55.9 215 21 671.2 671.3 323.5 672.9 0.21 31 17 27298 -52.3 -66.3 17 14.0 -54.9 708.3 708.4 324.8 710.9 0.30 TRP 280 9316 -57.1 -65.1 36 8.0 -57.2 325 46 310.9 310.9 285.7 311.0 0.02 WND Sounding variables and indices 1000-500 mb thick: 5248.00 m Freezing level: Surface below freezing Freezing level: 1002.82 mb = 149.52 m = 490.54 ft Freezing level: 943.73 mb = 640.79 m = 2102.29 ft Wetbulb zero: Below ground Precipitable water: 0.23 inches Sfc-500 mean rel hum: 52.93 % Est. max temperature: 5.64 C = 42.15 F Sfc-Lift cond lev (LCL): 875.01 mb = 1236.21 m = 4055.76 ft T: -5.69 C 700-500 lapse rate: 4.76 C/km ThetaE index: 2.16 C Layer 925.0- 850.0 mb Conv cond level (CCL): 775.25 mb = 2169.38 m = 7117.31 ft Mean mixing ratio: 1.74 g/kg Conv temperature: 6.76 C = 44.17 F Cap Strength: 9.73 C Lifted Index: 14.16 C Risk: None Lifted Index @300 mb: 18.90 C Lifted Index @700 mb: 4.75 C Showalter Index: 14.75 C Risk: None Total Totals Index: 29.60 C Risk: None Vertical Totals Index: 20.80 C Cross Totals Index: 8.80 C K Index: -3.70 Risk: None Sweat Index: 61.00 Risk: None Energy Index: 3.89 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 15.82 J/kg Max Up Vert Vel: 5.63 m/s Conv Inhibition (B-): 54366.42 J/kg Cap Strength: 14.00 C Lift Cond Lev (LCL): 802.98 mb = 1899.75 m = 6232.69 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 341 at 17 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 108 225 7 4.9 4.9 | 179 21 -0.3 20.7 1 1000 172 230 11 8.4 7.1 | 188 23 3.1 22.8 2 925 798 275 13 13.0 -1.1 | 208 17 7.7 14.6 3 850 1463 295 13 11.8 -5.5 | 212 12 6.5 10.3 4 700 2942 305 19 15.6 -10.9 | 245 11 10.3 4.9 5 500 5420 325 35 20.1 -28.7 | 311 20 14.8 -12.9 6 400 6980 330 38 19.0 -32.9 | 321 22 13.7 -17.1 7 300 8880 330 44 22.0 -38.1 | 323 28 16.7 -22.3 8 280 9316 325 46 26.4 -37.7 | 316 30 21.1 -21.9 9 250 10030 325 46 26.4 -37.7 | 316 30 21.1 -21.9 10 200 11460 325 33 18.9 -27.0 | 310 18 13.6 -11.3 11 150 13320 320 25 16.1 -19.2 | 287 11 10.8 -3.4 12 100 15950 280 11 10.8 -1.9 | 202 15 5.6 13.9 13 70 18250 280 9 8.9 -1.6 | 194 15 3.6 14.2 14 50 20410 245 11 10.0 4.6 | 193 21 4.7 20.4 15 30 23670 205 11 4.6 10.0 | 179 26 -0.6 25.7 16 20 26250 215 21 12.0 17.2 | 192 34 6.8 33.0 Wind Parameters Mean winds (0-6000m): 311.5 at 22.2 knts Storm direction: 341.5 at 16.6 knts Shear (0-3000m) pos: 3.5 neg: 0.0 tot: 3.5 10-3/s Storm rel Dir Shear (0-3000m): 71.3 deg Storm rel helicity (0-3000m) pos: 84.4 neg: 0.0 tot: 84.4 m^2/s^2 ave: 28.1 10^-3 m/s^2 rel: 0.75 Storm rel vorticity (0-3000m) horiz: 4.4 stream: 3.3 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.28 Bulk Shear: 55.84 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 ------------------------------------------------------------------------------- 500 245 11 194 21| 8.2 0.0 8.2| 47.2 0.0 47.2 94.4 0.81| 10.6 8.6 1000 262 12 201 19| 5.8 0.0 5.8| 58.9 0.0 58.9 58.9 0.71| 8.0 5.6 1500 273 12 205 17| 4.5 0.0 4.5| 62.7 0.0 62.7 41.8 0.65| 6.3 4.1 2000 280 13 209 15| 3.9 0.0 3.9| 69.4 0.0 69.4 34.7 0.69| 5.3 3.7 2500 286 14 213 14| 3.6 0.0 3.6| 76.3 0.0 76.3 30.5 0.72| 4.7 3.4 3000 290 15 218 14| 3.5 0.0 3.5| 84.4 0.0 84.4 28.1 0.75| 4.4 3.3 4000 298 17 230 12| 3.5 0.0 3.5|107.0 0.0 107.0 26.8 0.79| 4.2 3.3 5000 305 19 247 11| 3.6 0.0 3.6|134.3 0.0 134.3 26.9 0.80| 4.2 3.3 6000 311 22 265 11| 3.3 0.0 3.3|152.9 0.0 152.9 25.5 0.80| 3.9 3.1 Wrote GIF file: /home/apache/climate/data/raob//U2820/skewt/U2820.skewt.20250428.00.gif