UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042612.upa.cvt Date: 1200Z 26 APR 25 Searching for U2820... Searching the city database file for: U2820 ... Date:1200Z 26 APR 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 1001 111 1.4 -3.6 69 5.0 -0.5 20 7 274.5 275.0 272.6 282.5 2.92 1 1000 119 1.4 -4.6 64 6.0 -0.8 20 7 274.5 275.0 272.3 282.0 2.71 2 993 176 2.2 -8.8 44 11.0 -1.5 20 8 275.9 276.2 272.0 281.5 1.98 3 925 741 -3.5 -12.5 50 9.0 -6.1 15 23 275.7 276.0 271.3 280.2 1.58 4 851 1393 -9.5 -17.5 52 8.0 -11.4 10 23 276.1 276.3 270.8 279.4 1.14 5 850 1402 -9.7 -17.7 52 8.0 -11.6 10 23 276.0 276.2 270.7 279.2 1.12 6 754 2314 -16.7 -23.7 55 7.0 -17.9 358 19 278.0 278.1 271.3 280.3 0.75 7 700 2867 -20.9 -27.9 53 7.0 -21.9 350 17 279.3 279.4 271.7 281.0 0.55 8 604 3935 -30.3 -38.3 46 8.0 -30.9 322 13 280.5 280.6 271.9 281.3 0.23 9 524 4935 -35.1 -43.1 44 8.0 -35.6 294 8 286.4 286.4 275.0 286.9 0.16 10 500 5260 -37.3 -46.3 39 9.0 -37.8 285 7 287.6 287.6 275.6 288.0 0.12 11 417 6493 -45.5 -54.5 36 9.0 -45.7 232 14 292.4 292.4 277.9 292.6 0.06 12 400 6770 -47.1 -57.1 31 10.0 -47.3 220 15 293.8 293.8 278.6 293.9 0.04 13 367 7336 -49.9 -59.9 30 10.0 -50.1 210 17 297.4 297.4 280.2 297.5 0.03 14 310 8444 -48.3 -59.3 27 11.0 -48.6 260 10 314.3 314.3 286.9 314.5 0.04 15 300 8660 -47.5 -58.5 27 11.0 -47.8 270 9 318.4 318.4 288.3 318.6 0.05 16 250 9870 -44.9 -56.9 25 12.0 -45.4 310 11 339.3 339.3 294.2 339.6 0.07 17 222 10664 -44.1 -57.1 22 13.0 -44.7 313 11 352.3 352.3 297.2 352.6 0.08 18 200 11360 -45.5 -59.5 19 14.0 -46.2 315 11 360.7 360.7 298.9 361.0 0.06 19 150 13280 -46.3 -62.3 15 16.0 -47.1 300 13 390.3 390.3 303.9 390.6 0.06 20 100 15940 -49.9 -68.9 9 19.0 -50.8 270 13 431.3 431.3 309.0 431.5 0.04 21 70 18260 -52.3 -72.3 7 20.0 -53.2 260 9 472.5 472.5 312.8 472.7 0.03 22 62 19046 -53.7 -74.7 6 21.0 -54.6 258 12 486.1 486.1 314.0 486.2 0.02 23 50 20430 -54.7 -76.7 5 22.0 -55.7 255 17 514.6 514.6 315.9 514.7 0.02 24 30 23690 -56.3 -77.3 5 21.0 -57.6 230 11 591.2 591.2 320.2 591.4 0.03 25 27 24359 -56.1 -77.1 6 21.0 -57.6 234 10 609.8 609.8 321.0 610.1 0.04 26 20 26280 -52.7 -74.7 5 22.0 -55.3 245 7 674.9 674.9 323.6 675.5 0.08 27 15 28147 -49.3 -72.3 5 23.0 -53.5 195 9 744.0 744.1 325.8 745.4 0.15 28 10 30860 -39.3 -64.3 5 25.0 -49.2 125 13 872.8 873.2 329.0 880.2 0.67 29 9.0 31585 -37.3 -62.3 6 25.0 -48.6 907.2 907.8 329.8 918.3 0.97 TRP 367 7336 -49.9 -59.9 30 10.0 -50.1 210 17 297.4 297.4 280.2 297.5 0.03 WND Sounding variables and indices 1000-500 mb thick: 5141.00 m Freezing level: 966.75 mb = 393.76 m = 1291.86 ft Wetbulb zero: Below ground Precipitable water: 0.18 inches Sfc-500 mean rel hum: 49.07 % Est. max temperature: 3.03 C = 37.45 F Sfc-Lift cond lev (LCL): 926.04 mb = 732.03 m = 2401.64 ft T: -3.41 C 700-500 lapse rate: 6.85 C/km ThetaE index: 3.28 C Layer 1000.0- 754.0 mb Conv cond level (CCL): 804.25 mb = 1822.93 m = 5980.66 ft Mean mixing ratio: 1.76 g/kg Conv temperature: 3.87 C = 38.97 F Cap Strength: 5.25 C Lifted Index: 6.04 C Risk: None Lifted Index @300 mb: 26.72 C Lifted Index @700 mb: 1.23 C Showalter Index: 7.21 C Risk: None Total Totals Index: 47.20 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 27.60 C Cross Totals Index: 19.60 C K Index: 2.90 Risk: None Sweat Index: 53.00 Risk: None Energy Index: 1.78 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1.43 J/kg Max Up Vert Vel: 1.69 m/s Conv Inhibition (B-): 60821.42 J/kg Cap Strength: 5.79 C Lift Cond Lev (LCL): 818.65 mb = 1687.94 m = 5537.79 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 19 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 1001 111 20 7 -2.4 -6.6 | 199 4 1.3 4.0 1 1000 119 20 7 -2.4 -6.6 | 199 4 1.3 4.0 2 925 741 15 23 -6.0 -22.2 | 11 12 -2.2 -11.7 3 850 1402 10 23 -4.0 -22.7 | 1 12 -0.3 -12.1 4 700 2867 350 17 3.0 -16.7 | 313 9 6.7 -6.2 5 500 5260 285 7 6.8 -1.8 | 230 14 10.5 8.7 6 400 6770 220 15 9.6 11.5 | 211 26 13.4 22.0 7 367 7336 210 17 8.5 14.7 | 206 28 12.2 25.3 8 300 8660 270 9 9.0 -0.0 | 230 17 12.7 10.6 9 250 9870 310 11 8.4 -7.1 | 254 13 12.2 3.5 10 200 11360 315 11 7.8 -7.8 | 256 12 11.5 2.8 11 150 13280 300 13 11.3 -6.5 | 255 16 15.0 4.1 12 100 15940 270 13 13.0 -0.0 | 238 20 16.7 10.6 13 70 18260 260 9 8.9 1.6 | 226 17 12.6 12.1 14 50 20430 255 17 16.4 4.4 | 233 25 20.2 15.0 15 30 23690 230 11 8.4 7.1 | 215 21 12.2 17.6 16 20 26280 245 7 6.3 3.0 | 217 17 10.1 13.5 17 10 30860 125 13 -10.6 7.5 | 159 19 -6.9 18.0 Wind Parameters Mean winds (0-6000m): 349.5 at 14.9 knts Storm direction: 19.5 at 11.2 knts Shear (0-3000m) pos: 0.0 neg: 1.9 tot: 1.9 10-3/s Storm rel Dir Shear (0-3000m): 101.2 deg Storm rel helicity (0-3000m) pos: 0.3 neg: -35.6 tot: -35.3 m^2/s^2 ave: -11.8 10^-3 m/s^2 rel: -0.29 Storm rel vorticity (0-3000m) horiz: 5.2 stream: -1.5 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.23 Bulk Shear: 6.35 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 17 13 4 2| 0.0 13.0 13.0| 0.3 -0.1 0.2 0.4 0.29| 14.4 4.2 1000 15 18 8 7| 0.0 8.3 8.3| 0.3 -3.9 -3.6 -3.6 0.15| 9.4 1.5 1500 13 20 5 9| 0.0 5.3 5.3| 0.3 -10.6 -10.3 -6.9 0.03| 7.1 0.2 2000 11 20 360 9| 0.0 3.5 3.5| 0.3 -19.2 -18.9 -9.4 -0.10| 6.1 -0.6 2500 8 20 354 9| 0.0 2.5 2.5| 0.3 -26.8 -26.5 -10.6 -0.20| 5.5 -1.1 3000 6 19 348 9| 0.0 1.9 1.9| 0.3 -35.6 -35.3 -11.8 -0.29| 5.2 -1.5 4000 360 18 333 8| 0.0 1.4 1.4| 0.3 -56.6 -56.3 -14.1 -0.42| 4.9 -2.1 5000 356 16 319 7| 0.0 1.1 1.1| 0.3 -77.2 -76.9 -15.4 -0.50| 4.6 -2.3 6000 349 15 303 8| 0.0 1.5 1.5| 0.5 -90.1 -89.6 -14.9 -0.48| 4.5 -2.1 Wrote GIF file: /home/apache/climate/data/raob//U2820/skewt/U2820.skewt.20250426.12.gif