UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042600.upa.cvt Date: 0000Z 26 APR 25 Searching for U2820... Searching the city database file for: U2820 ... Date:0000Z 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 1000 111 -2.5 -6.7 73 4.2 -3.9 270 3 270.6 271.0 269.2 277.0 2.31 1 990 190 0.2 -4.4 71 4.6 -1.5 281 5 274.1 274.6 272.2 281.8 2.78 2 975 312 0.4 -4.4 70 4.8 -1.4 298 7 275.5 276.0 273.1 283.3 2.82 3 925 728 -3.3 -9.3 63 6.0 -5.2 355 15 275.9 276.3 272.1 281.7 2.04 4 850 1389 -8.9 -14.9 62 6.0 -10.5 355 19 276.8 277.1 271.6 280.9 1.41 5 703 2821 -21.3 -26.3 64 5.0 -22.1 10 19 278.6 278.7 271.4 280.5 0.63 6 700 2852 -21.3 -27.3 58 6.0 -22.2 10 19 278.9 279.0 271.5 280.7 0.58 7 634 3578 -24.1 -31.1 52 7.0 -25.0 1 16 283.7 283.8 274.1 285.1 0.45 8 500 5270 -35.1 -43.1 44 8.0 -35.6 340 9 290.2 290.3 277.0 290.8 0.17 9 400 6790 -44.9 -53.9 36 9.0 -45.2 305 5 296.6 296.6 279.9 296.9 0.06 10 342 7824 -51.3 -61.3 29 10.0 -51.5 244 8 301.5 301.5 282.0 301.6 0.03 11 334 7978 -51.9 -61.9 29 10.0 -52.1 235 9 302.8 302.8 282.5 302.9 0.03 12 314 8381 -49.9 -59.9 30 10.0 -50.1 252 9 310.9 310.9 285.7 311.1 0.04 13 300 8680 -49.3 -59.3 30 10.0 -49.6 265 9 315.9 315.9 287.4 316.0 0.04 14 250 9880 -46.5 -57.5 28 11.0 -46.9 265 17 336.9 336.9 293.6 337.2 0.06 15 200 11370 -45.5 -58.5 22 13.0 -46.1 270 19 360.7 360.7 298.9 361.0 0.07 16 182 11998 -44.9 -57.9 22 13.0 -45.6 270 18 371.6 371.6 300.9 371.9 0.08 17 150 13280 -47.9 -61.9 18 14.0 -48.6 270 17 387.5 387.5 303.5 387.8 0.06 18 100 15940 -50.3 -67.3 12 17.0 -51.1 265 15 430.5 430.6 308.9 430.8 0.04 19 94 16345 -50.1 -67.1 12 17.0 -51.0 266 15 438.6 438.6 309.8 438.9 0.05 20 85 16999 -53.1 -70.1 11 17.0 -53.8 267 14 445.4 445.4 310.4 445.6 0.04 21 70 18250 -53.7 -71.7 9 18.0 -54.5 270 13 469.5 469.5 312.6 469.7 0.03 22 50 20400 -55.9 -74.9 8 19.0 -56.8 265 17 511.7 511.8 315.8 511.9 0.03 23 30 23640 -59.3 -79.3 6 20.0 -60.3 255 11 583.0 583.0 319.8 583.2 0.02 24 25 24778 -59.9 -79.9 6 20.0 -60.9 266 11 612.5 612.5 321.2 612.7 0.03 25 20 26180 -56.7 -77.7 5 21.0 -58.5 280 11 662.6 662.6 323.2 663.0 0.05 26 12 29475 -49.1 -71.1 6 22.0 -54.0 793.8 793.9 327.1 795.9 0.22 TRP 334 7978 -51.9 -61.9 29 10.0 -52.1 235 9 302.8 302.8 282.5 302.9 0.03 WND Sounding variables and indices 1000-500 mb thick: 5159.13 m Freezing level: Surface below freezing Freezing level: 990.74 mb = 184.49 m = 605.29 ft Freezing level: 969.59 mb = 356.82 m = 1170.67 ft Wetbulb zero: Below ground Precipitable water: 0.23 inches Sfc-500 mean rel hum: 57.29 % Est. max temperature: 3.67 C = 38.61 F Sfc-Lift cond lev (LCL): 936.07 mb = 634.00 m = 2080.02 ft T: -2.46 C 700-500 lapse rate: 5.71 C/km ThetaE index: 2.88 C Layer 925.0- 700.0 mb Conv cond level (CCL): 856.15 mb = 1332.62 m = 4372.06 ft Mean mixing ratio: 2.36 g/kg Conv temperature: 3.61 C = 38.49 F Cap Strength: 3.24 C Lifted Index: 7.30 C Risk: None Lifted Index @300 mb: 24.04 C Lifted Index @700 mb: -0.11 C Showalter Index: 8.12 C Risk: None Total Totals Index: 46.40 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 26.20 C Cross Totals Index: 20.20 C K Index: 5.30 Risk: None Sweat Index: 47.00 Risk: None Energy Index: 2.02 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 14.82 J/kg Max Up Vert Vel: 5.44 m/s Conv Inhibition (B-): 39.97 J/kg Cap Strength: 7.16 C Lift Cond Lev (LCL): 874.13 mb = 1170.17 m = 3839.08 ft Lev Free Conv (LFC): 749.13 mb = 2341.36 m = 7681.54 ft Equ Level (EL): 689.13 mb = 2966.68 m = 9733.07 ft B at Equ Level: 13.10 J/kg Max Parcel Lev (MPL): 659.13 mb = 3292.84 m = 10803.16 ft Wind level data Storm motion: 27 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 1000 111 270 3 3.0 -0.0 | 220 12 7.9 9.4 1 925 728 355 15 1.3 -14.9 | 312 8 6.2 -5.5 2 850 1389 355 19 1.7 -18.9 | 326 12 6.5 -9.5 3 700 2852 10 19 -3.3 -18.7 | 350 9 1.6 -9.3 4 500 5270 340 9 3.1 -8.5 | 263 8 7.9 1.0 5 400 6790 305 5 4.1 -2.9 | 234 11 9.0 6.6 6 334 7978 235 9 7.4 5.2 | 220 19 12.2 14.6 7 300 8680 265 9 9.0 0.8 | 234 17 13.8 10.2 8 250 9880 265 17 16.9 1.5 | 243 24 21.8 10.9 9 200 11370 270 19 19.0 -0.0 | 248 26 23.9 9.4 10 150 13280 270 17 17.0 -0.0 | 247 24 21.9 9.4 11 100 15940 265 15 14.9 1.3 | 242 23 19.8 10.7 12 70 18250 270 13 13.0 -0.0 | 242 20 17.9 9.4 13 50 20400 265 17 16.9 1.5 | 243 24 21.8 10.9 14 30 23640 255 11 10.6 2.8 | 232 20 15.5 12.3 15 20 26180 280 11 10.8 -1.9 | 244 17 15.7 7.5 Wind Parameters Mean winds (0-6000m): 357.3 at 14.1 knts Storm direction: 27.3 at 10.6 knts Shear (0-3000m) pos: 3.4 neg: 0.2 tot: 3.6 10-3/s Storm rel Dir Shear (0-3000m): 122.1 deg Storm rel helicity (0-3000m) pos: 68.8 neg: -3.0 tot: 65.8 m^2/s^2 ave: 21.9 10^-3 m/s^2 rel: 0.81 Storm rel vorticity (0-3000m) horiz: 4.9 stream: 3.9 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 2.34 Bulk Shear: 6.34 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 ------------------------------------------------------------------------------- 500 342 8 255 8| 12.3 0.0 12.3| 40.8 0.0 40.8 81.5 0.96| 14.1 13.6 1000 350 12 287 7| 8.9 0.0 8.9| 54.2 0.0 54.2 54.2 0.93| 10.5 9.8 1500 353 14 304 8| 6.5 0.0 6.5| 58.7 0.0 58.7 39.2 0.90| 7.8 7.0 2000 355 15 313 8| 5.0 0.0 5.0| 63.0 0.0 63.0 31.5 0.90| 6.3 5.7 2500 357 16 320 9| 4.0 0.0 4.0| 67.2 0.0 67.2 26.9 0.90| 5.4 4.9 3000 360 17 325 9| 3.4 0.2 3.6| 68.8 -3.0 65.8 21.9 0.81| 4.9 3.9 4000 0 16 325 8| 2.5 0.8 3.3| 68.8 -14.0 54.8 13.7 0.53| 4.3 2.3 5000 360 15 320 8| 2.0 1.1 3.2| 68.8 -23.7 45.0 9.0 0.34| 4.0 1.3 6000 357 14 310 7| 1.7 1.3 3.0| 68.8 -31.9 36.9 6.1 0.22| 3.7 0.8 Wrote GIF file: /home/apache/climate/data/raob//U2820/skewt/U2820.skewt.20250426.00.gif