UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025102900.upa.cvt Date: 0000Z 29 OCT 25 Searching for U2820... Searching the city database file for: U2820 ... Date:0000Z 29 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 -31 SFC 983 109 5.0 4.5 97 0.5 4.8 0 0 279.5 280.4 278.7 294.2 5.37 2 964 268 5.2 4.4 95 0.8 4.8 338 2 281.3 282.2 279.7 296.3 5.44 3 925 604 2.8 1.3 90 1.5 2.1 290 5 282.2 283.0 279.0 294.8 4.54 4 850 1284 -1.7 -3.1 90 1.4 -2.3 240 5 284.4 285.0 278.9 294.5 3.58 5 728 2501 -8.9 -10.2 90 1.3 -9.4 220 5 289.4 289.8 279.8 296.5 2.41 6 700 2804 -11.3 -13.2 86 1.9 -11.9 215 5 290.0 290.3 279.5 295.9 1.97 7 662 3228 -14.9 -18.9 71 4.0 -15.9 218 6 290.6 290.8 278.9 294.6 1.30 8 620 3719 -19.7 -22.2 80 2.5 -20.2 222 7 290.6 290.8 278.5 293.8 1.04 9 602 3937 -19.7 -21.6 85 1.9 -20.1 224 8 293.0 293.2 279.8 296.6 1.13 10 600 3962 -19.9 -21.9 84 2.0 -20.3 224 8 293.1 293.3 279.8 296.5 1.10 11 512 5120 -27.1 -36.1 42 9.0 -28.1 234 11 298.0 298.0 281.0 299.1 0.34 12 502 5261 -28.3 -37.3 42 9.0 -29.2 235 11 298.2 298.3 281.0 299.2 0.31 13 500 5290 -28.5 -37.5 42 9.0 -29.5 235 11 298.3 298.3 281.0 299.3 0.30 14 400 6850 -40.9 -46.9 52 6.0 -41.2 190 13 301.8 301.9 282.3 302.3 0.14 15 399 6867 -41.1 -47.1 52 6.0 -41.4 190 13 301.8 301.8 282.3 302.3 0.14 16 341 7918 -47.7 -52.5 58 4.8 -47.9 171 12 306.7 306.7 284.2 307.0 0.09 17 300 8750 -54.7 -59.1 58 4.4 -54.8 155 11 308.2 308.3 284.7 308.4 0.04 18 270 9415 -60.5 -64.7 58 4.2 -60.6 145 9 309.2 309.2 285.1 309.3 0.02 19 258 9700 -58.3 -62.8 56 4.5 -58.3 151 10 316.5 316.5 287.6 316.7 0.03 20 250 9900 -54.7 -59.2 57 4.5 -54.8 155 11 324.7 324.8 290.3 325.0 0.05 21 243 10083 -53.1 -57.7 57 4.6 -53.2 159 12 329.8 329.8 291.7 330.1 0.06 22 234 10326 -53.7 -58.2 58 4.5 -53.8 164 12 332.5 332.5 292.4 332.7 0.06 23 200 11340 -52.3 -57.3 55 5.0 -52.5 185 15 349.9 350.0 296.7 350.3 0.08 24 151 13147 -52.3 -60.3 38 8.0 -52.6 205 17 379.2 379.3 302.2 379.6 0.08 25 150 13190 -52.5 -60.5 37 8.0 -52.8 205 17 379.6 379.6 302.2 380.0 0.07 26 100 15790 -56.1 -67.1 24 11.0 -56.5 230 21 419.3 419.3 307.7 419.6 0.05 27 79 17281 -58.3 -70.3 20 12.0 -58.7 243 24 444.0 444.0 310.3 444.2 0.04 28 70 18040 -59.3 -71.3 20 12.0 -59.7 250 25 457.5 457.5 311.5 457.7 0.04 29 50 20120 -62.9 -75.9 16 13.0 -63.3 265 21 495.3 495.3 314.6 495.4 0.03 30 42 21189 -65.9 -78.9 15 13.0 -66.2 265 23 513.2 513.2 315.9 513.3 0.02 31 30 23230 -66.9 -79.9 14 13.0 -67.2 265 27 562.3 562.3 318.8 562.4 0.02 32 20 25660 -69.1 -83.1 11 14.0 -69.5 265 33 624.7 624.7 321.7 624.8 0.02 33 16 26988 -70.9 -84.9 11 14.0 -71.3 659.9 660.0 323.0 660.1 0.02 TRP 270 9415 -60.5 -64.7 58 4.2 -60.6 145 9 309.2 309.2 285.1 309.3 0.02 WND Sounding variables and indices 1000-500 mb thick: 5321.00 m Freezing level: 878.33 mb = 1027.11 m = 3369.75 ft Wetbulb zero: 888.66 mb = 926.29 m = 3038.96 ft Precipitable water: 0.51 inches Sfc-500 mean rel hum: 79.59 % Est. max temperature: 10.48 C = 50.86 F Sfc-Lift cond lev (LCL): 975.44 mb = 171.93 m = 564.08 ft T: 5.08 C 700-500 lapse rate: 6.92 C/km ThetaE index: 2.70 C Layer 700.0- 602.0 mb Conv cond level (CCL): 904.35 mb = 785.60 m = 2577.40 ft Mean mixing ratio: 4.75 g/kg Conv temperature: 8.23 C = 46.81 F Cap Strength: 3.85 C Lifted Index: 3.94 C Risk: None Lifted Index @300 mb: 9.32 C Lifted Index @700 mb: 0.98 C Showalter Index: 4.35 C Risk: None Total Totals Index: 52.20 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 26.80 C Cross Totals Index: 25.40 C K Index: 21.80 Risk: 20-40 % chance of thunderstorms Sweat Index: 85.00 Risk: None Energy Index: 0.95 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 12.35 J/kg Max Up Vert Vel: 4.97 m/s Conv Inhibition (B-): 67.61 J/kg Cap Strength: 3.86 C Lift Cond Lev (LCL): 915.52 mb = 686.85 m = 2253.41 ft Lev Free Conv (LFC): 630.52 mb = 3592.88 m = 11787.53 ft Equ Level (EL): 610.52 mb = 3832.96 m = 12575.18 ft B at Equ Level: 9.96 J/kg Max Parcel Lev (MPL): 590.52 mb = 4078.06 m = 13379.29 ft Wind level data Storm motion: 261 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 ---------------------------------------------------------- 0 983 109 0 0 -0.0 -0.0 | 81 5 -5.2 -0.8 1 925 604 290 5 4.7 -1.7 | 11 3 -0.5 -2.5 2 850 1284 240 5 4.3 2.5 | 153 2 -0.9 1.7 3 700 2804 215 5 2.9 4.1 | 145 4 -2.3 3.3 4 500 5290 235 11 9.0 6.3 | 215 7 3.8 5.5 5 400 6850 190 13 2.3 12.8 | 166 12 -2.9 12.0 6 300 8750 155 11 -4.6 10.0 | 133 13 -9.8 9.1 7 270 9415 145 9 -5.2 7.4 | 122 12 -10.4 6.6 8 250 9900 155 11 -4.6 10.0 | 133 13 -9.8 9.1 9 200 11340 185 15 1.3 14.9 | 165 15 -3.9 14.1 10 150 13190 205 17 7.2 15.4 | 188 15 2.0 14.6 11 100 15790 230 21 16.1 13.5 | 221 17 10.9 12.7 12 70 18040 250 25 23.5 8.6 | 247 20 18.3 7.7 13 50 20120 265 21 20.9 1.8 | 266 16 15.7 1.0 14 30 23230 265 27 26.9 2.4 | 266 22 21.7 1.5 15 20 25660 265 33 32.9 2.9 | 266 28 27.7 2.1 Wind Parameters Mean winds (0-6000m): 231.0 at 7.0 knts Storm direction: 261.0 at 5.3 knts Shear (0-3000m) pos: 0.0 neg: 1.0 tot: 1.0 10-3/s Storm rel Dir Shear (0-3000m): 74.4 deg Storm rel helicity (0-3000m) pos: 1.0 neg: -6.3 tot: -5.4 m^2/s^2 ave: -1.8 10^-3 m/s^2 rel: -0.27 Storm rel vorticity (0-3000m) horiz: 2.3 stream: -0.6 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 2.51 Bulk Shear: 4.93 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 ------------------------------------------------------------------------------- 500 290 3 59 3| 0.0 5.1 5.1| 0.0 -5.9 -5.9 -11.8 -0.85| 6.2 -5.3 1000 278 4 48 2| 0.0 2.6 2.6| 0.1 -6.0 -5.8 -5.8 -0.43| 4.8 -2.1 1500 263 4 74 1| 0.0 1.7 1.7| 0.1 -6.0 -5.8 -3.9 -0.36| 3.8 -1.4 2000 253 4 114 1| 0.0 1.3 1.3| 0.1 -6.1 -5.9 -3.0 -0.35| 3.0 -1.0 2500 246 5 134 2| 0.0 1.0 1.0| 0.1 -6.2 -6.1 -2.4 -0.34| 2.6 -0.9 3000 240 5 142 2| 0.0 1.0 1.0| 1.0 -6.3 -5.4 -1.8 -0.27| 2.3 -0.6 4000 234 5 156 2| 0.3 0.7 1.1| 3.9 -6.3 -2.5 -0.6 -0.07| 2.1 -0.1 5000 233 6 174 3| 0.5 0.6 1.1| 7.3 -6.3 1.0 0.2 0.06| 1.9 0.1 6000 231 7 184 4| 0.5 0.7 1.2| 7.9 -14.6 -6.7 -1.1 -0.10| 2.1 -0.2 Wrote GIF file: /home/apache/climate/data/raob//U2820/skewt/U2820.skewt.20251029.00.gif