UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2026011900.upa.cvt Date: 0000Z 19 JAN 26 Searching for U2820... Searching the city database file for: U2820 ... Date:0000Z 19 JAN 26 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 1018 107 -1.5 -2.7 92 1.2 -2.0 270 5 270.3 270.8 270.2 278.5 3.07 1 1000 249 -2.5 -3.7 91 1.2 -2.9 280 9 270.6 271.1 270.2 278.5 2.90 2 966 522 -4.9 -6.2 91 1.3 -5.3 298 13 270.9 271.3 269.7 277.7 2.48 3 944 704 -3.3 -4.3 93 1.0 -3.7 310 15 274.3 274.8 272.5 282.4 2.94 4 937 763 -0.9 -2.7 88 1.8 -1.6 313 16 277.4 277.9 274.9 286.6 3.34 5 925 866 -0.7 -4.8 74 4.1 -2.3 320 17 278.6 279.1 274.9 286.7 2.89 6 858 1463 -3.5 -9.5 63 6.0 -5.5 324 22 281.7 282.1 275.6 287.9 2.16 7 850 1537 -4.1 -11.1 58 7.0 -6.3 325 23 281.9 282.2 275.3 287.4 1.92 8 724 2782 -12.5 -26.5 30 14.0 -15.2 329 28 285.9 286.0 275.5 287.8 0.61 9 700 3038 -14.5 -26.5 35 12.0 -16.7 330 29 286.4 286.5 275.8 288.4 0.63 10 676 3301 -16.3 -27.3 38 11.0 -18.2 328 30 287.3 287.4 276.2 289.2 0.60 11 500 5490 -34.5 -41.5 49 7.0 -35.0 315 36 291.0 291.0 277.5 291.6 0.20 12 450 6213 -39.9 -45.9 53 6.0 -40.2 315 44 293.1 293.1 278.4 293.6 0.14 13 400 7000 -47.1 -51.7 59 4.6 -47.2 315 52 293.8 293.8 278.6 294.1 0.08 14 395 7083 -47.7 -52.4 58 4.7 -47.9 315 52 294.1 294.1 278.8 294.3 0.08 15 353 7815 -54.3 -58.8 58 4.5 -54.4 317 54 294.8 294.8 279.0 294.9 0.04 16 300 8850 -58.1 -62.6 56 4.5 -58.2 320 56 303.4 303.5 282.8 303.6 0.03 17 281 9260 -60.1 -64.4 57 4.3 -60.2 315 56 306.3 306.3 284.0 306.4 0.02 18 270 9509 -59.1 -63.6 56 4.5 -59.2 317 56 311.3 311.3 285.8 311.4 0.03 19 250 9990 -60.3 -64.6 57 4.3 -60.3 320 56 316.4 316.4 287.6 316.5 0.03 20 200 11380 -60.9 -65.7 53 4.8 -61.0 315 38 336.3 336.3 293.4 336.4 0.03 21 150 13160 -61.5 -67.5 45 6.0 -61.6 315 36 364.1 364.1 299.5 364.3 0.03 22 147 13285 -61.5 -67.5 45 6.0 -61.6 315 36 366.2 366.2 299.9 366.4 0.03 23 100 15630 -67.7 -74.7 36 7.0 -67.8 305 33 396.9 396.9 304.8 397.0 0.02 24 74 17431 -71.3 -79.3 29 8.0 -71.3 297 33 425.0 425.0 308.3 425.1 0.01 25 70 17760 -72.3 -80.3 29 8.0 -72.3 295 33 429.7 429.7 308.8 429.8 0.01 26 50 19730 -74.3 -82.3 28 8.0 -74.4 290 40 468.4 468.4 312.5 468.5 0.01 27 42 20744 -74.9 -82.9 28 8.0 -75.0 490.9 490.9 314.3 490.9 0.01 TRP 281 9260 -60.1 -64.4 57 4.3 -60.2 315 56 306.3 306.3 284.0 306.4 0.02 WND Sounding variables and indices 1000-500 mb thick: 5241.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.29 inches Sfc-500 mean rel hum: 51.92 % Est. max temperature: 9.53 C = 49.15 F Sfc-Lift cond lev (LCL): 998.88 mb = 257.82 m = 845.85 ft T: -2.58 C 700-500 lapse rate: 8.16 C/km ThetaE index: 0.85 C Layer 1000.0- 944.0 mb Conv cond level (CCL): 973.84 mb = 458.43 m = 1504.01 ft Mean mixing ratio: 2.84 g/kg Conv temperature: -0.91 C = 30.37 F Cap Strength: 7.94 C Lifted Index: 8.84 C Risk: None Lifted Index @300 mb: 16.12 C Lifted Index @700 mb: 7.60 C Showalter Index: 3.68 C Risk: None Total Totals Index: 53.80 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 30.40 C Cross Totals Index: 23.40 C K Index: 7.30 Risk: None Sweat Index: 178.00 Risk: None Energy Index: 0.89 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 37.12 J/kg Max Up Vert Vel: 8.62 m/s Conv Inhibition (B-): 32040.29 J/kg Cap Strength: 8.79 C Lift Cond Lev (LCL): 942.06 mb = 720.28 m = 2363.10 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 351 at 21 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 1018 107 270 5 5.0 -0.0 | 185 21 1.8 20.6 1 1000 249 280 9 8.9 -1.6 | 197 20 5.7 19.1 2 925 866 320 17 10.9 -13.0 | 226 11 7.8 7.6 3 850 1537 325 23 13.2 -18.8 | 260 10 10.0 1.8 4 700 3038 330 29 14.5 -25.1 | 292 12 11.3 -4.5 5 500 5490 315 36 25.5 -25.5 | 282 23 22.3 -4.8 6 400 7000 315 52 36.8 -36.8 | 296 37 33.6 -16.1 7 300 8850 320 56 36.0 -42.9 | 304 40 32.8 -22.3 8 281 9260 315 56 39.6 -39.6 | 298 41 36.4 -19.0 9 250 9990 320 56 36.0 -42.9 | 304 40 32.8 -22.3 10 200 11380 315 38 26.9 -26.9 | 285 25 23.7 -6.2 11 150 13160 315 36 25.5 -25.5 | 282 23 22.3 -4.8 12 100 15630 305 33 27.0 -18.9 | 266 24 23.9 1.7 13 70 17760 295 33 29.9 -13.9 | 256 28 26.7 6.7 14 50 19730 290 40 37.6 -13.7 | 259 35 34.4 7.0 Wind Parameters Mean winds (0-6000m): 321.3 at 27.8 knts Storm direction: 351.3 at 20.9 knts Shear (0-3000m) pos: 4.6 neg: 0.0 tot: 4.6 10-3/s Storm rel Dir Shear (0-3000m): 106.3 deg Storm rel helicity (0-3000m) pos: 89.9 neg: 0.0 tot: 89.9 m^2/s^2 ave: 30.0 10^-3 m/s^2 rel: 0.83 Storm rel vorticity (0-3000m) horiz: 5.0 stream: 4.1 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 0.71 Bulk Shear: 52.11 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 ------------------------------------------------------------------------------- 500 291 10 200 18| 10.1 0.0 10.1| 44.7 0.0 44.7 89.4 0.83| 11.0 9.2 1000 309 13 210 14| 8.5 0.0 8.5| 61.7 0.0 61.7 61.7 0.77| 9.5 7.3 1500 316 16 221 12| 7.1 0.0 7.1| 73.3 0.0 73.3 48.8 0.81| 7.8 6.3 2000 319 18 231 11| 5.9 0.0 5.9| 79.0 0.0 79.0 39.5 0.83| 6.4 5.3 2500 322 20 240 10| 5.2 0.0 5.2| 84.8 0.0 84.8 33.9 0.84| 5.6 4.6 3000 324 21 249 10| 4.6 0.0 4.6| 89.9 0.0 89.9 30.0 0.83| 5.0 4.1 4000 324 24 262 11| 3.5 0.6 4.0| 89.9 -3.5 86.4 21.6 0.70| 4.3 3.0 5000 323 26 270 12| 2.8 0.9 3.7| 89.9 -10.2 79.7 15.9 0.58| 3.9 2.3 6000 321 28 274 14| 2.3 1.4 3.7|110.7 -13.2 97.5 16.2 0.53| 4.0 2.1 Wrote GIF file: /home/apache/climate/data/raob//U2820/skewt/U2820.skewt.20260119.00.gif