UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025102712.upa.cvt Date: 1200Z 27 OCT 25 Searching for U2820... Searching the city database file for: U2820 ... Date:1200Z 27 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 -19 SFC 985 105 6.8 5.1 89 1.7 5.9 160 5 281.2 282.1 279.8 296.6 5.59 2 925 618 3.2 0.9 85 2.3 2.1 185 23 282.6 283.3 279.0 294.9 4.41 3 864 1167 -0.7 -2.7 86 2.0 -1.5 197 25 284.1 284.7 278.8 294.4 3.62 4 850 1298 -1.1 -3.2 86 2.1 -2.0 200 25 285.0 285.6 279.1 295.1 3.55 5 806 1720 -2.7 -5.0 84 2.3 -3.6 199 23 287.7 288.2 280.1 297.1 3.27 6 700 2823 -9.7 -11.5 87 1.8 -10.3 195 17 291.7 292.1 280.7 298.5 2.26 7 622 3723 -15.1 -18.2 77 3.1 -15.9 197 18 295.6 295.8 281.4 300.1 1.46 8 500 5330 -27.9 -31.9 69 4.0 -28.4 200 21 299.0 299.1 281.7 300.8 0.53 9 408 6755 -40.9 -46.9 52 6.0 -41.2 205 21 300.1 300.2 281.6 300.6 0.14 10 400 6890 -41.7 -47.7 52 6.0 -42.0 205 21 300.8 300.8 281.8 301.2 0.13 11 348 7821 -48.1 -53.1 56 5.0 -48.3 213 20 304.4 304.4 283.2 304.7 0.08 12 305 8683 -52.3 -57.3 55 5.0 -52.4 220 19 310.2 310.2 285.4 310.4 0.05 13 300 8790 -52.1 -57.1 55 5.0 -52.2 220 19 311.9 311.9 286.1 312.1 0.06 14 250 9970 -51.5 -58.5 43 7.0 -51.7 185 17 329.5 329.5 291.6 329.7 0.06 15 248 10022 -51.7 -58.7 43 7.0 -51.9 184 17 330.0 330.0 291.7 330.2 0.06 16 218 10864 -47.9 -57.9 31 10.0 -48.3 170 16 348.2 348.2 296.3 348.5 0.07 17 200 11430 -48.9 -60.9 23 12.0 -49.3 160 15 355.3 355.3 297.8 355.6 0.05 18 173 12378 -51.3 -66.3 15 15.0 -51.7 160 17 366.4 366.4 299.9 366.6 0.03 19 150 13300 -53.7 -69.7 12 16.0 -54.1 160 19 377.5 377.6 301.9 377.6 0.02 20 100 15870 -58.7 -76.7 8 18.0 -59.0 190 15 414.3 414.3 307.0 414.4 0.01 21 98 15997 -57.7 -75.7 8 18.0 -58.0 191 15 418.7 418.7 307.6 418.7 0.01 22 70 18090 -62.7 -79.7 8 17.0 -63.0 210 17 450.2 450.2 310.9 450.3 0.01 23 50 20160 -64.5 -82.5 7 18.0 -64.8 235 21 491.5 491.5 314.3 491.5 0.01 24 46 20666 -66.5 -84.5 6 18.0 -66.8 238 22 498.5 498.5 314.8 498.6 0.01 25 42 21219 -64.1 -82.1 7 18.0 -64.5 242 24 517.6 517.6 316.1 517.7 0.01 26 30 23260 -67.3 -84.3 7 17.0 -67.7 255 29 561.2 561.2 318.7 561.2 0.01 27 27 23893 -68.5 -85.5 7 17.0 -68.8 258 31 575.0 575.0 319.4 575.0 0.01 28 20 25690 -68.7 -84.7 8 16.0 -69.1 265 38 625.9 625.9 321.7 626.0 0.02 29 10 29850 -65.9 -81.9 9 16.0 -67.0 255 52 773.6 773.6 326.6 774.0 0.05 30 10 29850 -65.7 -81.7 9 16.0 -66.8 255 52 774.3 774.3 326.6 774.8 0.05 31 9.4 30225 -67.3 -83.3 9 16.0 -68.3 782.1 782.1 326.8 782.4 0.04 32 5.0 34086 -61.3 -77.3 10 16.0 -64.3 260 91 964.1 964.3 330.6 966.5 0.21 33 4.9 34212 -61.1 -77.1 10 16.0 -64.3 970.6 970.7 330.7 973.2 0.22 TRP 305 8683 -52.3 -57.3 55 5.0 -52.4 220 19 310.2 310.2 285.4 310.4 0.05 WND 5.0 34086 -61.3 -77.3 10 16.0 -64.3 260 91 964.1 964.3 330.6 966.5 0.21 Sounding variables and indices 1000-500 mb thick: 5349.00 m Freezing level: 874.95 mb = 1068.84 m = 3506.66 ft Wetbulb zero: 889.25 mb = 935.47 m = 3069.09 ft Precipitable water: 0.54 inches Sfc-500 mean rel hum: 80.88 % Est. max temperature: 11.50 C = 52.70 F Sfc-Lift cond lev (LCL): 959.65 mb = 317.88 m = 1042.90 ft T: 5.31 C 700-500 lapse rate: 7.26 C/km ThetaE index: 2.20 C Layer 925.0- 850.0 mb Conv cond level (CCL): 891.64 mb = 913.84 m = 2998.11 ft Mean mixing ratio: 4.65 g/kg Conv temperature: 9.02 C = 48.24 F Cap Strength: 3.86 C Lifted Index: 4.37 C Risk: None Lifted Index @300 mb: 11.81 C Lifted Index @700 mb: 2.53 C Showalter Index: 4.54 C Risk: None Total Totals Index: 51.50 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 26.80 C Cross Totals Index: 24.70 C K Index: 21.80 Risk: 20-40 % chance of thunderstorms Sweat Index: 121.00 Risk: None Energy Index: 1.16 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 8.94 J/kg Max Up Vert Vel: 4.23 m/s Conv Inhibition (B-): 75151.38 J/kg Cap Strength: 4.36 C Lift Cond Lev (LCL): 905.47 mb = 789.86 m = 2591.36 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 227 at 15 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 ---------------------------------------------------------- 0 985 105 160 5 -1.7 4.7 | 66 14 -12.6 -5.5 1 925 618 185 23 2.0 22.9 | 145 15 -8.9 12.7 2 850 1298 200 25 8.6 23.5 | 170 13 -2.3 13.3 3 700 2823 195 17 4.4 16.4 | 134 9 -6.5 6.2 4 500 5330 200 21 7.2 19.7 | 159 10 -3.7 9.5 5 400 6890 205 21 8.9 19.0 | 167 9 -2.0 8.8 6 305 8683 220 19 12.2 14.6 | 197 5 1.3 4.3 7 300 8790 220 19 12.2 14.6 | 197 5 1.3 4.3 8 250 9970 185 17 1.5 16.9 | 126 12 -9.4 6.7 9 200 11430 160 15 -5.1 14.1 | 104 16 -16.0 3.9 10 150 13300 160 19 -6.5 17.9 | 114 19 -17.4 7.6 11 100 15870 190 15 2.6 14.8 | 119 9 -8.3 4.5 12 70 18090 210 17 8.5 14.7 | 152 5 -2.4 4.5 13 50 20160 235 21 17.2 12.0 | 254 7 6.3 1.8 14 30 23260 255 29 28.0 7.5 | 279 17 17.1 -2.7 15 20 25690 265 38 37.9 3.3 | 284 28 27.0 -6.9 16 10 29850 255 52 50.2 13.5 | 265 39 39.4 3.2 Wind Parameters Mean winds (0-6000m): 196.7 at 19.9 knts Storm direction: 226.7 at 14.9 knts Shear (0-3000m) pos: 3.4 neg: 1.0 tot: 4.4 10-3/s Storm rel Dir Shear (0-3000m): 70.5 deg Storm rel helicity (0-3000m) pos: 92.2 neg: -19.1 tot: 73.1 m^2/s^2 ave: 24.4 10^-3 m/s^2 rel: 0.55 Storm rel vorticity (0-3000m) horiz: 5.8 stream: 3.2 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 1.13 Bulk Shear: 7.89 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 ------------------------------------------------------------------------------- 500 180 14 108 11| 18.6 0.0 18.6| 65.6 0.0 65.6 131.2 0.98| 19.2 18.9 1000 187 19 134 12| 10.6 0.0 10.6| 84.6 0.0 84.6 84.6 0.98| 12.2 12.0 1500 192 21 146 12| 6.8 0.0 6.8| 91.2 -4.0 87.2 58.1 0.88| 9.4 8.2 2000 193 21 149 12| 5.1 0.7 5.8| 91.2 -10.5 80.8 40.4 0.73| 7.7 5.6 2500 194 21 149 11| 4.1 1.1 5.2| 91.2 -16.7 74.6 29.8 0.59| 6.7 4.0 3000 194 20 148 11| 3.4 1.0 4.4| 92.2 -19.1 73.1 24.4 0.55| 5.8 3.2 4000 195 20 147 11| 2.8 0.8 3.5| 96.2 -19.1 77.1 19.3 0.57| 4.6 2.6 5000 196 20 148 10| 2.4 0.6 3.0|100.4 -19.1 81.3 16.3 0.59| 3.9 2.3 6000 197 20 150 10| 2.0 0.5 2.6|103.2 -19.1 84.1 14.0 0.60| 3.3 2.0 Wrote GIF file: /home/apache/climate/data/raob//U2820/skewt/U2820.skewt.20251027.12.gif