UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101612.upa.cvt Date: 1200Z 16 OCT 25 Searching for U2820... Searching the city database file for: U2820 ... Date:1200Z 16 OCT 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 -7 SFC 986 109 7.8 6.1 89 1.7 6.9 225 7 282.1 283.1 280.7 298.6 5.99 2 925 632 4.2 2.5 89 1.7 3.4 245 27 283.6 284.5 280.2 297.5 4.95 3 850 1315 0.0 -1.7 88 1.7 -0.7 250 29 286.1 286.8 280.2 297.5 3.97 4 827 1534 -1.5 -3.3 88 1.8 -2.3 252 30 286.8 287.4 280.1 297.2 3.62 5 808 1720 -0.5 -2.4 87 1.9 -1.3 254 30 289.8 290.5 281.8 301.3 3.96 6 700 2852 -7.9 -10.4 82 2.5 -8.8 265 33 293.7 294.2 281.8 301.2 2.47 7 653 3389 -11.5 -13.8 83 2.3 -12.2 263 34 295.6 295.9 282.1 301.7 2.01 8 564 4496 -19.3 -25.3 59 6.0 -20.5 259 35 299.0 299.2 282.1 301.8 0.87 9 558 4576 -18.9 -24.9 59 6.0 -20.1 258 35 300.4 300.6 282.7 303.4 0.91 10 525 5029 -19.5 -22.6 76 3.1 -20.2 256 36 305.0 305.2 284.9 308.8 1.19 11 506 5302 -21.7 -24.3 79 2.6 -22.2 255 36 305.5 305.7 284.9 309.0 1.06 12 500 5390 -22.5 -25.0 80 2.5 -23.0 255 36 305.6 305.8 284.9 308.9 1.00 13 457 6042 -28.1 -31.2 75 3.1 -28.5 259 37 306.6 306.7 284.8 308.7 0.62 14 427 6527 -29.1 -32.7 71 3.6 -29.6 262 37 311.3 311.4 286.5 313.3 0.57 15 400 6990 -32.5 -38.5 55 6.0 -33.1 265 38 312.7 312.8 286.7 314.0 0.34 16 366 7610 -36.9 -45.9 39 9.0 -37.5 263 41 314.9 315.0 287.3 315.6 0.17 17 300 8960 -45.5 -53.5 40 8.0 -45.8 260 48 321.2 321.2 289.2 321.6 0.09 18 281 9392 -48.9 -57.9 34 9.0 -49.1 264 47 322.4 322.4 289.6 322.6 0.05 19 250 10150 -52.9 -61.9 33 9.0 -53.1 270 46 327.4 327.4 291.0 327.6 0.04 20 236 10521 -55.5 -64.5 32 9.0 -55.6 269 45 328.9 328.9 291.5 329.0 0.03 21 200 11570 -59.3 -68.3 30 9.0 -59.4 265 44 338.9 338.9 294.0 338.9 0.02 22 193 11792 -60.5 -69.5 30 9.0 -60.6 265 40 340.4 340.4 294.4 340.5 0.02 23 179 12262 -58.5 -68.5 27 10.0 -58.6 269 38 351.1 351.1 296.9 351.2 0.02 24 168 12664 -53.5 -63.5 28 10.0 -53.8 273 36 365.8 365.9 299.8 366.0 0.04 25 150 13390 -54.5 -64.5 28 10.0 -54.8 280 33 376.2 376.2 301.6 376.4 0.04 26 137 13974 -50.7 -61.7 26 11.0 -51.2 283 30 392.8 392.8 304.2 393.1 0.07 27 122 14720 -55.7 -67.7 21 12.0 -56.0 288 26 396.9 396.9 304.8 397.1 0.03 28 104 15739 -53.9 -65.9 22 12.0 -54.4 294 20 418.9 418.9 307.6 419.1 0.05 29 100 15990 -54.5 -66.5 21 12.0 -54.9 295 19 422.4 422.4 308.0 422.7 0.05 30 79 17493 -56.7 -68.7 21 12.0 -57.2 288 16 447.3 447.4 310.6 447.6 0.05 31 70 18260 -56.7 -68.7 21 12.0 -57.2 285 15 463.1 463.1 312.1 463.4 0.05 32 50 20390 -58.3 -70.3 20 12.0 -58.9 285 21 506.1 506.1 315.4 506.5 0.06 33 30 23600 -59.1 -71.1 20 12.0 -59.9 310 15 583.5 583.6 319.9 584.2 0.09 34 29 23813 -59.1 -71.1 20 12.0 -59.9 589.2 589.2 320.2 589.9 0.09 TRP 193 11792 -60.5 -69.5 30 9.0 -60.6 265 40 340.4 340.4 294.4 340.5 0.02 WND Sounding variables and indices 1000-500 mb thick: 5397.00 m Freezing level: 850.00 mb = 1315.00 m = 4314.25 ft Wetbulb zero: 863.47 mb = 1187.99 m = 3897.57 ft Precipitable water: 0.63 inches Sfc-500 mean rel hum: 80.19 % Est. max temperature: 12.25 C = 54.05 F Sfc-Lift cond lev (LCL): 960.71 mb = 321.87 m = 1055.99 ft T: 6.34 C 700-500 lapse rate: 5.75 C/km ThetaE index: 1.16 C Layer 925.0- 850.0 mb Conv cond level (CCL): 895.70 mb = 891.97 m = 2926.37 ft Mean mixing ratio: 5.16 g/kg Conv temperature: 10.28 C = 50.51 F Cap Strength: 8.08 C Lifted Index: 8.01 C Risk: None Lifted Index @300 mb: 16.71 C Lifted Index @700 mb: 2.80 C Showalter Index: 8.24 C Risk: None Total Totals Index: 43.30 C Risk: None Vertical Totals Index: 22.50 C Cross Totals Index: 20.80 C K Index: 18.30 Risk: < 20 % chance of thunderstorms Sweat Index: 129.89 Risk: None Energy Index: 2.33 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 10.41 J/kg Max Up Vert Vel: 4.56 m/s Conv Inhibition (B-): 40119.17 J/kg Cap Strength: 8.04 C Lift Cond Lev (LCL): 911.43 mb = 751.41 m = 2465.21 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 287 at 24 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 ---------------------------------------------------------- 0 986 109 225 7 4.9 4.9 | 124 21 -17.8 11.9 1 925 632 245 27 24.5 11.4 | 185 18 1.7 18.4 2 850 1315 250 29 27.3 9.9 | 195 17 4.5 16.9 3 700 2852 265 33 32.9 2.9 | 226 14 10.1 9.8 4 500 5390 255 36 34.8 9.3 | 216 20 12.0 16.3 5 400 6990 265 38 37.9 3.3 | 236 18 15.1 10.3 6 300 8960 260 48 47.3 8.3 | 238 29 24.5 15.3 7 250 10150 270 46 46.0 -0.0 | 253 24 23.3 6.9 8 200 11570 265 44 43.8 3.8 | 243 24 21.1 10.8 9 193 11792 265 40 39.8 3.5 | 239 20 17.1 10.4 10 150 13390 280 33 32.5 -5.7 | 263 10 9.8 1.2 11 100 15990 295 19 17.2 -8.0 | 79 6 -5.5 -1.1 12 70 18260 285 15 14.5 -3.9 | 110 9 -8.3 3.1 13 50 20390 285 21 20.3 -5.4 | 122 3 -2.5 1.5 14 30 23600 310 15 11.5 -9.6 | 77 12 -11.2 -2.7 Wind Parameters Mean winds (0-6000m): 257.0 at 31.7 knts Storm direction: 287.0 at 23.8 knts Shear (0-3000m) pos: 4.8 neg: 0.0 tot: 4.8 10-3/s Storm rel Dir Shear (0-3000m): 101.1 deg Storm rel helicity (0-3000m) pos: 152.7 neg: -0.8 tot: 151.9 m^2/s^2 ave: 50.6 10^-3 m/s^2 rel: 0.94 Storm rel vorticity (0-3000m) horiz: 5.8 stream: 5.4 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.29 Bulk Shear: 35.99 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 ------------------------------------------------------------------------------- 500 241 17 151 17| 20.2 0.0 20.2| 99.4 0.0 99.4 198.8 0.98| 20.6 20.2 1000 244 22 170 17| 11.4 0.0 11.4|114.0 0.0 114.0 114.0 0.98| 11.9 11.7 1500 247 24 179 17| 8.2 0.0 8.2|125.0 0.0 125.0 83.3 0.97| 8.8 8.6 2000 249 26 185 16| 6.5 0.0 6.5|136.3 0.0 136.3 68.1 0.97| 7.4 7.1 2500 252 27 191 16| 5.6 0.0 5.6|147.5 0.0 147.5 59.0 0.97| 6.5 6.3 3000 254 28 197 15| 4.8 0.0 4.8|152.7 -0.8 151.9 50.6 0.94| 5.8 5.4 4000 257 30 204 15| 3.6 0.3 4.0|152.7 -5.3 147.4 36.9 0.85| 4.7 3.9 5000 257 31 208 16| 2.9 0.5 3.4|152.7 -10.8 141.9 28.4 0.76| 4.0 3.0 6000 257 32 210 16| 2.6 0.5 3.0|167.1 -12.1 154.9 25.8 0.75| 3.6 2.7 Wrote GIF file: /home/apache/climate/data/raob//U2820/skewt/U2820.skewt.20251016.12.gif