UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120600.upa.cvt Date: 0000Z 6 DEC 25 Searching for U2820... Searching the city database file for: U2820 ... Date:0000Z 6 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 ------------------------------------------------------------------------------- SFC 1010 111 0.4 0.0 97 0.4 0.3 270 1 272.8 273.4 272.9 283.0 3.78 1 1000 191 -0.3 -1.0 95 0.7 -0.6 270 5 272.9 273.4 272.6 282.5 3.55 2 925 813 -2.7 -3.8 92 1.1 -3.1 280 23 276.5 277.1 274.1 285.2 3.12 3 850 1481 -5.5 -7.2 88 1.7 -6.1 305 21 280.4 280.8 275.5 287.8 2.62 4 840 1574 -6.1 -7.9 87 1.8 -6.7 304 21 280.7 281.1 275.5 287.8 2.51 5 746 2489 -13.5 -14.7 91 1.2 -13.8 292 24 282.3 282.6 275.2 287.1 1.64 6 738 2572 -12.7 -14.0 90 1.3 -13.0 290 24 284.1 284.4 276.3 289.2 1.75 7 724 2718 -11.1 -14.3 77 3.2 -12.0 288 24 287.4 287.7 277.9 292.6 1.74 8 700 2977 -11.1 -19.1 52 8.0 -13.1 285 25 290.2 290.4 278.6 293.9 1.21 9 688 3110 -11.5 -20.5 47 9.0 -13.6 285 25 291.2 291.4 278.9 294.5 1.09 10 669 3324 -12.7 -27.7 27 15.0 -15.6 284 24 292.2 292.3 278.6 294.1 0.59 11 618 3925 -16.7 -35.7 18 19.0 -19.4 283 23 294.3 294.3 279.2 295.3 0.29 12 608 4047 -17.5 -35.5 19 18.0 -20.0 283 22 294.7 294.8 279.4 295.8 0.31 13 505 5409 -28.5 -34.5 56 6.0 -29.2 280 19 297.4 297.5 280.8 298.8 0.41 14 500 5480 -28.9 -35.9 51 7.0 -29.7 280 19 297.8 297.9 280.9 299.0 0.36 15 409 6879 -39.3 -51.3 27 12.0 -39.8 280 23 302.0 302.0 282.3 302.3 0.08 16 400 7030 -40.7 -52.7 26 12.0 -41.2 280 23 302.1 302.1 282.3 302.4 0.07 17 346 8001 -48.1 -59.1 27 11.0 -48.4 275 21 304.9 304.9 283.4 305.0 0.04 18 310 8718 -51.7 -61.7 29 10.0 -51.9 271 19 309.6 309.6 285.2 309.7 0.03 19 300 8930 -53.3 -63.3 29 10.0 -53.5 270 19 310.2 310.2 285.4 310.3 0.03 20 264 9747 -59.1 -69.1 26 10.0 -59.2 274 25 313.3 313.3 286.5 313.3 0.01 21 250 10090 -60.3 -70.3 26 10.0 -60.4 275 27 316.4 316.4 287.6 316.5 0.01 22 207 11251 -65.3 -75.3 24 10.0 -65.4 290 36 326.1 326.1 290.6 326.2 0.01 23 200 11460 -64.5 -74.5 24 10.0 -64.6 295 36 330.6 330.6 291.9 330.6 0.01 24 192 11710 -65.3 -75.3 24 10.0 -65.4 293 36 333.2 333.2 292.6 333.2 0.01 25 151 13189 -61.7 -72.7 22 11.0 -61.8 280 33 363.1 363.1 299.3 363.2 0.01 26 150 13230 -61.7 -72.7 22 11.0 -61.9 280 33 363.8 363.8 299.4 363.8 0.01 27 100 15720 -63.7 -75.7 18 12.0 -63.8 270 31 404.7 404.7 305.8 404.7 0.01 28 80 17082 -65.3 -78.3 15 13.0 -65.5 267 31 428.0 428.0 308.6 428.1 0.01 29 70 17890 -67.5 -79.5 17 12.0 -67.7 265 31 440.0 440.0 309.9 440.0 0.01 30 50 19890 -71.3 -84.3 13 13.0 -71.4 270 36 475.5 475.5 313.1 475.5 0.01 31 30 22840 -80.1 -93.1 10 13.0 -80.1 265 42 526.3 526.3 316.7 526.3 0.00 32 29 23032 -80.3 -93.3 10 13.0 -80.4 530.9 530.9 317.0 530.9 0.00 33 22 24595 -79.5 -92.5 10 13.0 -79.6 576.9 576.9 319.5 576.9 0.00 TRP 207 11251 -65.3 -75.3 24 10.0 -65.4 290 36 326.1 326.1 290.6 326.2 0.01 WND Sounding variables and indices 1000-500 mb thick: 5289.00 m Freezing level: 1004.29 mb = 156.88 m = 514.68 ft Wetbulb zero: 1006.90 mb = 135.96 m = 446.06 ft Precipitable water: 0.37 inches Sfc-500 mean rel hum: 62.17 % Est. max temperature: 7.50 C = 45.50 F Sfc-Lift cond lev (LCL): 1003.61 mb = 162.15 m = 531.99 ft T: -0.05 C 700-500 lapse rate: 7.11 C/km ThetaE index: 0.70 C Layer 746.0- 738.0 mb Conv cond level (CCL): 912.70 mb = 918.80 m = 3014.39 ft Mean mixing ratio: 3.32 g/kg Conv temperature: 4.80 C = 40.63 F Cap Strength: 11.70 C Lifted Index: 11.92 C Risk: None Lifted Index @300 mb: 18.63 C Lifted Index @700 mb: 8.68 C Showalter Index: 8.99 C Risk: None Total Totals Index: 45.10 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 23.40 C Cross Totals Index: 21.70 C K Index: 8.20 Risk: None Sweat Index: 61.00 Risk: None Energy Index: 2.36 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 17.00 J/kg Max Up Vert Vel: 5.83 m/s Conv Inhibition (B-): 41750.37 J/kg Cap Strength: 11.70 C Lift Cond Lev (LCL): 945.18 mb = 640.82 m = 2102.39 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 316 at 16 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 1010 111 270 1 1.0 -0.0 | 139 15 -9.9 11.4 1 1000 191 270 5 5.0 -0.0 | 153 13 -5.9 11.4 2 925 813 280 23 22.7 -4.0 | 238 14 11.8 7.4 3 850 1481 305 21 17.2 -12.0 | 276 6 6.3 -0.7 4 700 2977 285 25 24.1 -6.5 | 250 14 13.3 4.9 5 500 5480 280 19 18.7 -3.3 | 224 11 7.8 8.1 6 400 7030 280 23 22.7 -4.0 | 238 14 11.8 7.4 7 300 8930 270 19 19.0 -0.0 | 216 14 8.1 11.4 8 250 10090 275 27 26.9 -2.4 | 241 18 16.0 9.0 9 207 11251 290 36 33.8 -12.3 | 272 23 22.9 -0.9 10 200 11460 295 36 32.6 -15.2 | 280 22 21.7 -3.8 11 150 13230 280 33 32.5 -5.7 | 255 22 21.6 5.6 12 100 15720 270 31 31.0 -0.0 | 241 23 20.1 11.4 13 70 17890 265 31 30.9 2.7 | 235 24 20.0 14.1 14 50 19890 270 36 36.0 -0.0 | 246 28 25.1 11.4 15 30 22840 265 42 41.8 3.7 | 244 34 31.0 15.0 Wind Parameters Mean winds (0-6000m): 286.2 at 21.0 knts Storm direction: 316.2 at 15.7 knts Shear (0-3000m) pos: 3.5 neg: 1.4 tot: 4.9 10-3/s Storm rel Dir Shear (0-3000m): 109.6 deg Storm rel helicity (0-3000m) pos: 79.9 neg: -12.9 tot: 67.0 m^2/s^2 ave: 22.3 10^-3 m/s^2 rel: 0.54 Storm rel vorticity (0-3000m) horiz: 7.0 stream: 3.8 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.96 Bulk Shear: 17.63 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 ------------------------------------------------------------------------------- 500 275 10 174 11| 16.6 0.0 16.6| 46.5 0.0 46.5 93.1 0.93| 16.8 15.6 1000 281 16 208 9| 10.9 0.0 10.9| 72.3 0.0 72.3 72.3 0.87| 13.7 11.9 1500 288 18 225 8| 7.0 0.0 7.0| 79.9 -0.5 79.4 52.9 0.81| 11.1 9.0 2000 292 19 236 8| 5.3 0.7 6.0| 79.9 -3.7 76.2 38.1 0.70| 9.1 6.4 2500 292 20 241 8| 4.2 1.2 5.4| 79.9 -7.9 72.0 28.8 0.61| 7.9 4.8 3000 291 20 244 9| 3.5 1.4 4.9| 79.9 -12.9 67.0 22.3 0.54| 7.0 3.8 4000 289 21 244 10| 2.6 1.0 3.6| 79.9 -20.5 59.4 14.8 0.46| 5.6 2.5 5000 287 21 242 11| 2.1 0.8 3.0| 79.9 -27.7 52.2 10.4 0.38| 4.7 1.8 6000 286 21 239 11| 1.8 0.7 2.5| 83.7 -30.1 53.6 8.9 0.37| 4.1 1.5 Wrote GIF file: /home/apache/climate/data/raob//U2820/skewt/U2820.skewt.20251206.00.gif