UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120400.upa.cvt Date: 0000Z 4 DEC 25 Searching for EP374... Searching the city database file for: EP374 ... Date:0000Z 4 DEC 25 Station: EP374 WMO ident: 12374 Latitude: 52.40 Longitude: 20.97 ------------------------------------------------------------------------------- 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 1007 95 4.2 2.2 87 2.0 3.3 130 3 276.8 277.5 276.1 288.9 4.45 1 1000 152 3.8 2.0 88 1.8 3.0 150 7 277.0 277.7 276.2 289.0 4.42 2 942 635 0.0 0.0 100 0.0 0.0 135 9 277.9 278.5 276.2 289.0 4.06 3 937 677 2.6 0.5 86 2.1 1.7 133 9 280.9 281.7 278.0 292.7 4.23 4 925 782 3.4 -0.6 75 4.0 1.7 130 9 282.8 283.5 278.6 293.9 3.95 5 912 897 4.4 -2.6 60 7.0 1.4 136 9 285.0 285.6 279.0 294.8 3.46 6 904 969 4.6 -0.4 70 5.0 2.4 140 10 285.9 286.6 280.3 297.6 4.11 7 850 1468 1.4 -1.9 79 3.3 -0.0 165 11 287.6 288.3 280.8 298.8 3.91 8 739 2579 -6.5 -6.8 98 0.3 -6.6 179 14 290.7 291.3 281.3 299.9 3.11 9 700 3001 -9.1 -9.7 95 0.6 -9.3 185 15 292.4 292.9 281.4 300.2 2.61 10 527 5138 -23.5 -25.8 81 2.3 -23.9 202 18 299.8 300.0 282.5 302.7 0.89 11 500 5520 -26.9 -29.8 76 2.9 -27.3 205 19 300.2 300.4 282.3 302.4 0.65 12 444 6361 -34.1 -36.2 81 2.1 -34.3 194 22 301.5 301.6 282.5 302.9 0.39 13 418 6779 -37.9 -42.6 61 4.7 -38.2 189 24 301.9 301.9 282.4 302.7 0.21 14 400 7080 -40.7 -44.5 67 3.8 -40.9 185 25 302.1 302.1 282.5 302.7 0.18 15 370 7605 -45.5 -48.0 76 2.5 -45.6 196 23 302.5 302.6 282.6 303.0 0.13 16 365 7696 -45.9 -52.9 45 7.0 -46.2 198 22 303.2 303.2 282.8 303.5 0.08 17 326 8440 -50.7 -57.7 43 7.0 -50.8 213 19 306.5 306.5 284.1 306.7 0.05 18 300 8980 -52.1 -65.1 20 13.0 -52.3 225 17 311.9 311.9 286.0 312.0 0.02 19 275 9545 -53.3 -70.3 11 17.0 -53.5 235 21 318.0 318.0 288.1 318.1 0.01 20 250 10160 -54.1 -74.1 7 20.0 -54.4 260 25 325.6 325.6 290.5 325.7 0.01 21 200 11580 -56.7 -77.7 5 21.0 -56.9 245 27 343.0 343.0 295.0 343.0 0.00 22 150 13400 -57.1 -83.1 2 26.0 -57.4 245 13 371.7 371.7 300.9 371.7 0.00 23 108 15470 -58.9 -84.9 2 26.0 -59.2 249 16 404.9 404.9 305.9 404.9 0.00 24 100 15950 -61.1 -85.1 3 24.0 -61.4 250 17 409.7 409.7 306.5 409.7 0.00 25 89 16669 -63.5 -86.5 3 23.0 -63.7 248 20 418.8 418.8 307.6 418.8 0.00 26 70 18140 -63.9 -87.9 2 24.0 -64.1 245 25 447.7 447.7 310.6 447.7 0.00 27 50 20190 -66.9 -89.9 3 23.0 -67.1 240 19 485.8 485.8 313.9 485.8 0.00 28 37 21998 -69.3 -90.3 3 21.0 -69.5 523.4 523.4 316.5 523.4 0.00 TRP 275 9545 -53.3 -70.3 11 17.0 -53.5 235 21 318.0 318.0 288.1 318.1 0.01 WND Sounding variables and indices 1000-500 mb thick: 5368.00 m Freezing level: 830.33 mb = 1664.88 m = 5462.14 ft Wetbulb zero: 850.87 mb = 1459.68 m = 4788.93 ft Precipitable water: 0.61 inches Sfc-500 mean rel hum: 86.66 % Est. max temperature: 14.81 C = 58.65 F Sfc-Lift cond lev (LCL): 976.34 mb = 345.41 m = 1133.21 ft T: 2.28 C 700-500 lapse rate: 7.07 C/km Conv cond level (CCL): 946.08 mb = 599.71 m = 1967.53 ft Mean mixing ratio: 4.12 g/kg Conv temperature: 5.20 C = 41.36 F Cap Strength: 8.88 C Lifted Index: 8.79 C Risk: None Lifted Index @300 mb: 15.09 C Lifted Index @700 mb: 6.06 C Showalter Index: 2.85 C Risk: Showers probable Total Totals Index: 53.30 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 28.30 C Cross Totals Index: 25.00 C K Index: 25.80 Risk: 40-60 % chance of thunderstorms Sweat Index: 127.00 Risk: None Energy Index: 0.70 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 37.37 J/kg Max Up Vert Vel: 8.65 m/s Conv Inhibition (B-): 31686.40 J/kg Cap Strength: 8.86 C Lift Cond Lev (LCL): 924.42 mb = 787.07 m = 2582.21 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 216 at 11 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 1007 95 130 3 -2.3 1.9 | 52 11 -8.7 -6.9 1 1000 152 150 7 -3.5 6.1 | 75 10 -9.9 -2.7 2 925 782 130 9 -6.9 5.8 | 77 14 -13.3 -3.0 3 850 1468 165 11 -2.8 10.6 | 101 9 -9.3 1.8 4 700 3001 185 15 1.3 14.9 | 140 8 -5.1 6.1 5 500 5520 205 19 8.0 17.2 | 191 9 1.6 8.4 6 400 7080 185 25 2.2 24.9 | 165 17 -4.3 16.1 7 300 8980 225 17 12.0 12.0 | 240 6 5.6 3.2 8 275 9545 235 21 17.2 12.0 | 253 11 10.8 3.2 9 250 10160 260 25 24.6 4.3 | 284 19 18.2 -4.5 10 200 11580 245 27 24.5 11.4 | 262 18 18.0 2.6 11 150 13400 245 13 11.8 5.5 | 302 6 5.3 -3.3 12 100 15950 250 17 16.0 5.8 | 287 10 9.5 -3.0 13 70 18140 245 25 22.7 10.6 | 264 16 16.2 1.8 14 50 20190 240 19 16.5 9.5 | 266 10 10.0 0.7 Wind Parameters Mean winds (0-6000m): 186.2 at 14.5 knts Storm direction: 216.2 at 10.9 knts Shear (0-3000m) pos: 2.3 neg: 0.0 tot: 2.3 10-3/s Storm rel Dir Shear (0-3000m): 90.1 deg Storm rel helicity (0-3000m) pos: 42.4 neg: 0.0 tot: 42.4 m^2/s^2 ave: 14.1 10^-3 m/s^2 rel: 0.78 Storm rel vorticity (0-3000m) horiz: 3.5 stream: 2.7 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 2.55 Bulk Shear: 14.63 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 ------------------------------------------------------------------------------- 500 142 7 75 11| 5.6 0.0 5.6| 13.5 0.0 13.5 27.1 0.74| 6.8 5.0 1000 139 8 78 12| 3.6 0.0 3.6| 21.0 0.0 21.0 21.0 0.69| 5.3 3.6 1500 147 9 84 11| 3.1 0.0 3.1| 29.6 0.0 29.6 19.7 0.70| 4.9 3.5 2000 154 10 90 11| 2.7 0.0 2.7| 33.9 0.0 33.9 16.9 0.73| 4.2 3.1 2500 160 10 96 10| 2.5 0.0 2.5| 38.3 0.0 38.3 15.3 0.76| 3.8 2.8 3000 166 11 103 9| 2.3 0.0 2.3| 42.4 0.0 42.4 14.1 0.78| 3.5 2.7 4000 174 12 114 9| 2.0 0.0 2.0| 48.1 0.0 48.1 12.0 0.81| 2.9 2.4 5000 181 13 127 8| 1.8 0.0 1.8| 54.1 0.0 54.1 10.8 0.83| 2.7 2.2 6000 186 15 139 7| 1.6 0.3 1.9| 56.8 -4.8 52.0 8.7 0.68| 2.6 1.8 Wrote GIF file: /home/apache/climate/data/raob//EP374/skewt/EP374.skewt.20251204.00.gif