UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025121012.upa.cvt Date: 1200Z 10 DEC 25 Searching for U2820... Searching the city database file for: U2820 ... Date:1200Z 10 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 48 200 1 SFC 992 113 1.2 0.4 94 0.8 0.8 200 1 275.0 275.6 274.4 285.8 3.96 2 925 676 1.0 -0.5 90 1.5 0.4 245 17 280.3 281.0 277.3 291.4 3.98 3 921 711 1.0 -0.5 90 1.5 0.4 245 17 280.7 281.4 277.6 291.8 4.00 4 850 1352 -2.1 -3.4 91 1.3 -2.6 250 11 283.9 284.6 278.6 293.9 3.50 5 790 1930 -5.1 -6.4 91 1.3 -5.6 244 13 286.7 287.3 279.3 295.4 2.99 6 771 2120 -7.9 -9.6 88 1.7 -8.5 242 13 285.7 286.1 278.0 292.7 2.39 7 700 2864 -12.5 -14.0 89 1.5 -12.9 235 15 288.6 289.0 278.7 294.2 1.85 8 691 2963 -13.3 -14.8 88 1.5 -13.7 237 15 288.8 289.1 278.6 294.1 1.75 9 579 4289 -21.3 -27.3 58 6.0 -22.3 269 22 294.5 294.6 279.8 296.7 0.70 10 523 5033 -25.5 -39.5 26 14.0 -27.0 287 25 298.1 298.1 280.8 298.9 0.24 11 508 5245 -25.1 -41.1 21 16.0 -26.8 292 26 301.1 301.1 282.1 301.8 0.21 12 500 5360 -26.1 -42.1 21 16.0 -27.6 295 27 301.2 301.3 282.1 301.9 0.19 13 480 5655 -27.9 -44.9 18 17.0 -29.3 297 29 302.5 302.6 282.6 303.1 0.15 14 400 6940 -37.7 -50.7 24 13.0 -38.4 305 38 306.0 306.0 283.9 306.3 0.09 15 391 7096 -38.7 -51.7 24 13.0 -39.3 306 43 306.7 306.7 284.2 307.0 0.08 16 361 7641 -41.1 -54.1 23 13.0 -41.6 310 60 310.6 310.6 285.6 310.8 0.07 17 355 7755 -40.1 -53.1 24 13.0 -40.7 311 64 313.4 313.4 286.6 313.7 0.08 18 337 8109 -40.3 -54.3 21 14.0 -40.9 314 76 317.8 317.8 288.1 318.1 0.07 19 300 8890 -46.9 -57.9 27 11.0 -47.2 320 101 319.3 319.3 288.6 319.5 0.05 20 257 9894 -55.1 -64.1 32 9.0 -55.2 316 109 321.6 321.6 289.3 321.7 0.03 21 250 10070 -56.1 -64.1 36 8.0 -56.2 315 110 322.7 322.7 289.6 322.8 0.03 22 246 10172 -57.5 -65.5 35 8.0 -57.6 316 110 322.1 322.1 289.4 322.2 0.02 23 234 10487 -57.5 -65.5 35 8.0 -57.6 319 112 326.7 326.7 290.8 326.8 0.02 24 232 10541 -57.9 -65.9 35 8.0 -58.0 320 112 326.9 326.9 290.9 327.0 0.02 25 203 11369 -64.3 -72.3 33 8.0 -64.4 325 108 329.5 329.5 291.6 329.6 0.01 26 200 11460 -64.5 -72.5 32 8.0 -64.6 325 104 330.6 330.6 291.9 330.7 0.01 27 191 11741 -64.9 -72.9 32 8.0 -65.0 323 98 334.4 334.4 292.9 334.4 0.01 28 188 11839 -61.7 -69.7 34 8.0 -61.8 323 95 341.0 341.0 294.6 341.1 0.02 29 155 13037 -61.3 -69.3 34 8.0 -61.4 316 69 361.1 361.1 299.0 361.2 0.02 30 150 13240 -62.3 -70.3 33 8.0 -62.4 315 64 362.8 362.8 299.2 362.8 0.02 31 100 15710 -66.7 -75.7 27 9.0 -66.8 315 54 398.9 398.9 305.0 398.9 0.01 32 80 17052 -67.3 -77.3 23 10.0 -67.4 315 55 423.9 423.9 308.2 424.0 0.01 33 70 17850 -69.9 -78.9 26 9.0 -70.0 315 56 434.8 434.8 309.4 434.9 0.01 34 56 19166 -73.5 -83.5 20 10.0 -73.6 315 57 455.3 455.3 311.4 455.3 0.01 35 50 19830 -72.9 -82.9 21 10.0 -73.0 315 58 471.7 471.7 312.8 471.7 0.01 36 49 19949 -72.7 -82.7 21 10.0 -72.8 315 58 474.9 474.9 313.0 475.0 0.01 37 42 20848 -76.3 -86.3 19 10.0 -76.4 315 61 487.4 487.4 314.0 487.4 0.01 38 30 22790 -76.5 -86.5 19 10.0 -76.6 315 68 536.1 536.1 317.3 536.1 0.01 39 22 24557 -80.9 -90.9 17 10.0 -81.0 572.7 572.7 319.3 572.7 0.00 TRP 203 11369 -64.3 -72.3 33 8.0 -64.4 325 108 329.5 329.5 291.6 329.6 0.01 WND 232 10541 -57.9 -65.9 35 8.0 -58.0 320 112 326.9 326.9 290.9 327.0 0.02 Sounding variables and indices 1000-500 mb thick: 5312.00 m Freezing level: 898.10 mb = 917.66 m = 3010.66 ft Wetbulb zero: 912.18 mb = 787.76 m = 2584.49 ft Precipitable water: 0.46 inches Sfc-500 mean rel hum: 74.15 % Est. max temperature: 10.51 C = 50.91 F Sfc-Lift cond lev (LCL): 979.72 mb = 213.09 m = 699.12 ft T: 1.16 C 700-500 lapse rate: 5.45 C/km ThetaE index: 2.72 C Layer 771.0- 700.0 mb Conv cond level (CCL): 861.09 mb = 1248.36 m = 4095.63 ft Mean mixing ratio: 3.95 g/kg Conv temperature: 9.62 C = 49.31 F Cap Strength: 10.27 C Lifted Index: 10.27 C Risk: None Lifted Index @300 mb: 20.93 C Lifted Index @700 mb: 3.24 C Showalter Index: 7.22 C Risk: None Total Totals Index: 46.70 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 24.00 C Cross Totals Index: 22.70 C K Index: 19.10 Risk: < 20 % chance of thunderstorms Sweat Index: 49.00 Risk: None Energy Index: 1.61 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 24.84 J/kg Max Up Vert Vel: 7.05 m/s Conv Inhibition (B-): 35514.78 J/kg Cap Strength: 10.28 C Lift Cond Lev (LCL): 922.00 mb = 702.13 m = 2303.54 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 300 at 14 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 ---------------------------------------------------------- 0 992 113 200 1 0.3 0.9 | 124 14 -11.6 7.7 1 925 676 245 17 15.4 7.2 | 194 14 3.5 14.0 2 850 1352 250 11 10.3 3.8 | 171 11 -1.6 10.5 3 700 2864 235 15 12.3 8.6 | 181 15 0.3 15.4 4 500 5360 295 27 24.5 -11.4 | 290 13 12.5 -4.6 5 400 6940 305 38 31.1 -21.8 | 308 24 19.2 -15.0 6 300 8890 320 101 64.9 -77.4 | 323 88 53.0 -70.6 7 250 10070 315 110 77.8 -77.8 | 317 97 65.8 -71.0 8 232 10541 320 112 72.0 -85.8 | 323 99 60.1 -79.0 9 203 11369 325 108 61.9 -88.5 | 329 96 50.0 -81.7 10 200 11460 325 104 59.7 -85.2 | 329 92 47.7 -78.4 11 150 13240 315 64 45.3 -45.3 | 319 51 33.3 -38.5 12 100 15710 315 54 38.2 -38.2 | 320 41 26.2 -31.4 13 70 17850 315 56 39.6 -39.6 | 320 43 27.7 -32.8 14 50 19830 315 58 41.0 -41.0 | 320 45 29.1 -34.2 15 30 22790 315 68 48.1 -48.1 | 319 55 36.1 -41.3 Wind Parameters Mean winds (0-6000m): 269.5 at 18.3 knts Storm direction: 299.5 at 13.7 knts Shear (0-3000m) pos: 2.5 neg: 0.5 tot: 3.0 10-3/s Storm rel Dir Shear (0-3000m): 65.0 deg Storm rel helicity (0-3000m) pos: 80.8 neg: -14.2 tot: 66.6 m^2/s^2 ave: 22.2 10^-3 m/s^2 rel: 0.57 Storm rel vorticity (0-3000m) horiz: 5.2 stream: 2.9 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 1.38 Bulk Shear: 18.04 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 ------------------------------------------------------------------------------- 500 243 8 156 11| 14.9 0.0 14.9| 58.7 0.0 58.7 117.4 1.00| 15.9 15.9 1000 245 12 173 12| 6.4 0.0 6.4| 66.5 -8.9 57.6 57.6 0.70| 10.9 7.7 1500 246 12 174 12| 4.3 0.5 4.8| 67.7 -14.2 53.5 35.7 0.57| 8.2 4.6 2000 246 12 174 12| 3.2 0.3 3.5| 70.3 -14.2 56.2 28.1 0.56| 6.6 3.7 2500 244 12 175 12| 2.6 0.6 3.2| 72.4 -14.2 58.2 23.3 0.55| 5.6 3.1 3000 243 13 177 13| 2.5 0.5 3.0| 80.8 -14.2 66.6 22.2 0.57| 5.2 2.9 4000 247 14 185 12| 2.7 0.4 3.0|112.4 -14.2 98.3 24.6 0.66| 5.1 3.3 5000 258 16 201 11| 2.8 0.3 3.1|147.3 -14.2 133.1 26.6 0.73| 5.2 3.8 6000 270 18 223 9| 2.9 0.2 3.2|168.3 -14.2 154.1 25.7 0.72| 5.1 3.6 Wrote GIF file: /home/apache/climate/data/raob//U2820/skewt/U2820.skewt.20251210.12.gif