UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120112.upa.cvt Date: 1200Z 1 DEC 25 Searching for U2820... Searching the city database file for: U2820 ... Date:1200Z 1 DEC 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 99 200 7 SFC 999 107 3.2 1.3 87 1.9 2.4 200 7 276.4 277.1 275.6 287.9 4.20 2 931 674 -0.5 -1.7 92 1.2 -1.0 223 31 278.3 278.9 275.8 288.3 3.62 3 927 709 -0.5 -1.7 92 1.2 -1.0 224 32 278.6 279.2 276.0 288.7 3.64 4 925 726 1.2 0.2 93 1.0 0.8 225 33 280.5 281.3 277.7 292.2 4.19 5 923 743 2.2 1.1 92 1.1 1.7 225 33 281.7 282.5 278.7 294.2 4.49 6 862 1296 2.4 0.3 86 2.1 1.4 238 41 287.5 288.3 281.5 300.4 4.53 7 850 1409 1.6 -0.3 87 1.9 0.7 240 42 287.8 288.6 281.5 300.4 4.40 8 707 2869 -7.9 -11.4 76 3.5 -9.1 240 40 292.9 293.3 281.2 299.7 2.26 9 700 2947 -7.5 -12.3 68 4.8 -9.1 240 40 294.2 294.6 281.6 300.6 2.12 10 654 3472 -11.3 -21.3 43 10.0 -13.7 238 40 295.7 295.9 280.9 299.0 1.07 11 639 3649 -12.9 -21.9 47 9.0 -15.0 237 41 295.8 296.0 280.9 299.1 1.04 12 624 3830 -12.9 -17.8 67 4.9 -14.2 237 41 297.8 298.1 282.4 302.6 1.51 13 612 3978 -13.7 -20.7 55 7.0 -15.4 236 41 298.6 298.8 282.3 302.4 1.20 14 602 4103 -14.9 -26.9 35 12.0 -17.3 236 41 298.6 298.7 281.7 300.9 0.70 15 500 5480 -24.7 -38.7 26 14.0 -26.3 230 42 302.9 303.0 283.0 303.9 0.27 16 403 7008 -36.7 -48.7 28 12.0 -37.4 235 44 306.6 306.7 284.2 307.1 0.11 17 400 7060 -37.1 -49.1 28 12.0 -37.8 235 44 306.8 306.8 284.2 307.2 0.11 18 300 8980 -52.3 -59.3 43 7.0 -52.4 240 46 311.6 311.6 285.9 311.8 0.04 19 271 9628 -58.3 -65.3 40 7.0 -58.4 240 47 312.1 312.1 286.1 312.2 0.02 20 250 10130 -61.9 -68.9 39 7.0 -62.0 240 48 314.0 314.0 286.8 314.1 0.01 21 239 10407 -63.7 -70.7 38 7.0 -63.7 240 49 315.4 315.4 287.2 315.4 0.01 22 225 10775 -65.5 -72.5 37 7.0 -65.5 240 50 318.1 318.1 288.1 318.2 0.01 23 207 11281 -65.7 -72.7 37 7.0 -65.7 244 46 325.5 325.5 290.5 325.5 0.01 24 200 11490 -64.1 -71.1 38 7.0 -64.1 245 44 331.2 331.3 292.1 331.3 0.01 25 180 12141 -60.1 -67.1 39 7.0 -60.2 247 42 347.9 347.9 296.2 348.0 0.03 26 169 12534 -59.5 -66.5 40 7.0 -59.6 248 40 355.2 355.3 297.8 355.4 0.03 27 150 13280 -59.5 -67.5 35 8.0 -59.6 250 38 367.6 367.6 300.1 367.7 0.03 28 113 15049 -61.7 -70.7 29 9.0 -61.9 260 37 394.5 394.5 304.5 394.6 0.02 29 100 15810 -60.7 -70.7 26 10.0 -60.9 265 36 410.4 410.5 306.6 410.6 0.03 30 89 16531 -60.5 -70.5 26 10.0 -60.7 265 34 424.8 424.8 308.3 424.9 0.03 31 75 17580 -65.1 -76.1 20 11.0 -65.3 265 30 436.4 436.4 309.5 436.5 0.02 32 70 18000 -63.9 -74.9 21 11.0 -64.1 265 29 447.7 447.7 310.7 447.8 0.02 33 66 18362 -63.5 -75.5 18 12.0 -63.7 268 29 456.1 456.2 311.4 456.3 0.02 34 50 20060 -66.7 -78.7 17 12.0 -66.9 280 29 486.3 486.3 314.0 486.4 0.02 35 46 20563 -67.1 -80.1 14 13.0 -67.3 279 31 497.1 497.1 314.8 497.2 0.01 36 38 21702 -72.1 -84.1 15 12.0 -72.2 277 35 512.3 512.3 315.8 512.3 0.01 37 30 23090 -73.1 -86.1 12 13.0 -73.3 275 40 545.4 545.4 317.8 545.4 0.01 38 29 23289 -73.1 -86.1 12 13.0 -73.3 275 41 550.7 550.7 318.1 550.7 0.01 39 20 25430 -80.1 -93.1 10 13.0 -80.2 280 48 591.0 591.0 320.2 591.0 0.00 40 18 26022 -82.3 -94.3 11 12.0 -82.4 602.1 602.1 320.7 602.1 0.00 41 15 27039 -83.3 -96.3 9 13.0 -83.4 631.0 631.0 321.9 631.0 0.00 TRP 225 10775 -65.5 -72.5 37 7.0 -65.5 240 50 318.1 318.1 288.1 318.2 0.01 WND Sounding variables and indices 1000-500 mb thick: 5381.00 m Freezing level: 940.19 mb = 597.63 m = 1960.71 ft Freezing level: 926.41 mb = 713.78 m = 2341.77 ft Freezing level: 825.92 mb = 1654.97 m = 5429.63 ft Wetbulb zero: 950.88 mb = 504.30 m = 1654.52 ft Precipitable water: 0.53 inches Sfc-500 mean rel hum: 63.53 % Est. max temperature: 14.62 C = 58.32 F Sfc-Lift cond lev (LCL): 969.99 mb = 344.23 m = 1129.34 ft T: 1.65 C 700-500 lapse rate: 6.79 C/km ThetaE index: 0.74 C Layer 850.0- 700.0 mb Conv cond level (CCL): 938.70 mb = 607.99 m = 1994.68 ft Mean mixing ratio: 4.05 g/kg Conv temperature: 4.84 C = 40.71 F Cap Strength: 9.83 C Lifted Index: 11.43 C Risk: None Lifted Index @300 mb: 15.30 C Lifted Index @700 mb: 8.07 C Showalter Index: 3.99 C Risk: None Total Totals Index: 50.70 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 26.30 C Cross Totals Index: 24.40 C K Index: 21.20 Risk: 20-40 % chance of thunderstorms Sweat Index: 160.00 Risk: None Energy Index: 0.71 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 31.55 J/kg Max Up Vert Vel: 7.94 m/s Conv Inhibition (B-): 49284.15 J/kg Cap Strength: 11.33 C Lift Cond Lev (LCL): 926.88 mb = 709.68 m = 2328.33 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 265 at 29 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 ---------------------------------------------------------- 0 999 107 200 7 2.4 6.6 | 99 27 -26.5 4.0 1 925 726 225 33 23.3 23.3 | 165 21 -5.6 20.8 2 850 1409 240 42 36.4 21.0 | 202 20 7.5 18.4 3 700 2947 240 40 34.6 20.0 | 198 18 5.7 17.4 4 500 5480 230 42 32.2 27.0 | 188 25 3.3 24.4 5 400 7060 235 44 36.0 25.2 | 197 24 7.1 22.7 6 300 8980 240 46 39.8 23.0 | 208 23 10.9 20.4 7 250 10130 240 48 41.6 24.0 | 211 25 12.7 21.4 8 225 10775 240 50 43.3 25.0 | 213 27 14.4 22.4 9 200 11490 245 44 39.9 18.6 | 214 19 11.0 16.0 10 150 13280 250 38 35.7 13.0 | 213 12 6.8 10.4 11 100 15810 265 36 35.9 3.1 | 265 7 7.0 0.6 12 70 18000 265 29 28.9 2.5 | 10 0 -0.0 -0.0 13 50 20060 280 29 28.6 -5.0 | 3 8 -0.3 -7.6 14 30 23090 275 40 39.8 -3.5 | 299 13 11.0 -6.1 15 20 25430 280 48 47.3 -8.3 | 301 21 18.4 -10.9 Wind Parameters Mean winds (0-6000m): 234.9 at 38.7 knts Storm direction: 264.9 at 29.0 knts Shear (0-3000m) pos: 6.3 neg: 0.3 tot: 6.6 10-3/s Storm rel Dir Shear (0-3000m): 98.9 deg Storm rel helicity (0-3000m) pos: 236.7 neg: -7.5 tot: 229.2 m^2/s^2 ave: 76.4 10^-3 m/s^2 rel: 0.89 Storm rel vorticity (0-3000m) horiz: 7.4 stream: 6.6 10^-3/s Energy-Hel index: 0.05 Bulk Rich Number: 0.48 Bulk Shear: 66.08 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 ------------------------------------------------------------------------------- 500 220 17 121 21| 22.2 0.0 22.2|134.0 0.0 134.0 268.1 0.97| 22.6 22.0 1000 225 26 146 19| 16.7 0.0 16.7|204.7 0.0 204.7 204.7 0.98| 17.9 17.5 1500 231 31 163 17| 12.6 0.0 12.6|236.7 -0.6 236.0 157.4 0.97| 14.1 13.7 2000 234 33 174 17| 9.4 0.2 9.6|236.7 -2.7 233.9 117.0 0.95| 10.7 10.2 2500 235 35 179 17| 7.5 0.3 7.8|236.7 -4.8 231.8 92.7 0.92| 8.7 8.1 3000 236 36 183 17| 6.3 0.3 6.6|236.7 -7.5 229.2 76.4 0.89| 7.4 6.6 4000 237 37 186 18| 4.7 0.4 5.2|236.7 -15.6 221.1 55.3 0.80| 5.9 4.8 5000 236 38 188 19| 3.8 0.6 4.4|236.7 -24.9 211.7 42.3 0.72| 5.1 3.7 6000 235 39 188 20| 3.2 0.6 3.8|246.7 -28.3 218.5 36.4 0.71| 4.4 3.1 Wrote GIF file: /home/apache/climate/data/raob//U2820/skewt/U2820.skewt.20251201.12.gif