UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041900.upa.cvt Date: 0000Z 19 APR 25 Searching for U2820... Searching the city database file for: U2820 ... Date:0000Z 19 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 ------------------------------------------------------------------------------- 0 1000 87 225 3 SFC 997 112 7.8 6.7 93 1.1 7.2 225 3 281.2 282.2 280.5 298.2 6.18 2 992 154 10.6 9.3 92 1.3 9.9 230 4 284.4 285.7 283.4 305.0 7.42 3 984 221 11.4 10.1 92 1.3 10.7 237 5 285.9 287.2 284.5 307.9 7.90 4 972 323 9.6 7.9 89 1.7 8.7 249 8 285.1 286.3 283.1 304.2 6.88 5 966 375 10.6 8.8 89 1.8 9.6 254 9 286.6 287.9 284.2 307.2 7.37 6 925 736 10.0 7.7 86 2.3 8.7 295 17 289.5 290.8 285.2 309.8 7.14 7 852 1423 10.6 4.6 66 6.0 7.3 280 19 297.1 298.2 287.2 315.4 6.25 8 850 1443 10.8 4.8 66 6.0 7.5 280 19 297.5 298.6 287.5 316.1 6.35 9 846 1482 11.0 5.0 66 6.0 7.7 280 19 298.1 299.2 287.8 317.1 6.47 10 840 1542 9.4 3.4 66 6.0 6.2 280 20 297.0 298.0 286.8 314.1 5.82 11 731 2680 2.4 -0.3 82 2.7 1.1 284 28 301.4 302.3 287.7 316.8 5.12 12 700 3028 -0.9 -4.5 77 3.6 -2.5 285 31 301.5 302.2 286.5 313.4 3.91 13 660 3493 -5.3 -8.1 81 2.8 -6.4 284 31 301.6 302.2 285.8 311.3 3.14 14 652 3589 -5.3 -8.0 81 2.7 -6.4 284 31 302.7 303.3 286.2 312.6 3.21 15 614 4059 -6.1 -10.1 73 4.0 -7.7 283 30 307.0 307.6 287.5 316.1 2.89 16 500 5630 -17.7 -22.7 65 5.0 -18.9 280 29 311.5 311.7 287.3 315.6 1.23 17 400 7260 -29.5 -36.5 51 7.0 -30.4 285 35 316.6 316.7 288.1 318.2 0.42 18 388 7477 -31.1 -39.1 45 8.0 -32.0 285 35 317.3 317.4 288.3 318.5 0.33 19 300 9240 -46.9 -56.9 31 10.0 -47.2 285 38 319.3 319.3 288.6 319.5 0.06 20 250 10420 -57.1 -68.1 24 11.0 -57.2 300 44 321.2 321.2 289.1 321.2 0.02 21 217 11302 -64.9 -75.9 21 11.0 -65.0 308 49 322.4 322.4 289.5 322.4 0.01 22 211 11473 -65.9 -76.9 20 11.0 -66.0 310 50 323.4 323.4 289.8 323.4 0.01 23 204 11679 -64.7 -75.7 21 11.0 -64.8 307 45 328.4 328.4 291.3 328.5 0.01 24 200 11800 -64.9 -75.9 21 11.0 -65.0 305 42 330.0 330.0 291.7 330.0 0.01 25 189 12144 -65.5 -76.5 20 11.0 -65.5 301 40 334.4 334.4 292.9 334.4 0.01 26 174 12657 -57.3 -68.3 23 11.0 -57.5 295 38 355.9 355.9 297.9 356.0 0.02 27 152 13516 -54.9 -65.9 24 11.0 -55.2 286 33 374.1 374.1 301.3 374.2 0.04 28 150 13600 -55.7 -66.7 24 11.0 -55.9 285 33 374.1 374.1 301.3 374.3 0.03 29 138 14127 -57.3 -68.3 23 11.0 -57.5 288 32 380.3 380.3 302.3 380.5 0.03 30 124 14806 -54.1 -66.1 22 12.0 -54.5 292 31 397.9 398.0 304.9 398.2 0.04 31 100 16180 -54.9 -66.9 21 12.0 -55.4 300 29 421.7 421.7 307.9 421.9 0.05 32 85 17214 -57.7 -69.7 20 12.0 -58.0 300 26 436.0 436.1 309.5 436.3 0.04 33 75 18009 -55.3 -68.3 18 13.0 -55.9 300 24 457.0 457.0 311.5 457.3 0.05 34 70 18450 -55.3 -68.3 18 13.0 -55.9 300 23 466.1 466.1 312.3 466.4 0.06 35 62 19226 -56.5 -69.5 18 13.0 -57.1 307 22 479.9 479.9 313.5 480.2 0.05 36 50 20600 -55.1 -69.1 16 14.0 -55.9 320 19 513.6 513.7 315.9 514.1 0.07 37 36 22705 -52.3 -67.3 15 15.0 -53.8 336 19 571.5 571.5 319.3 572.4 0.12 38 30 23880 -52.9 -67.9 15 15.0 -54.6 345 19 600.4 600.5 320.7 601.5 0.14 39 20 26480 -55.3 -71.3 12 16.0 -57.2 350 21 666.9 667.0 323.3 668.0 0.13 40 16 27901 -56.1 -72.1 12 16.0 -58.2 708.2 708.3 324.7 709.5 0.14 41 12 29742 -53.3 -70.3 11 17.0 -56.6 778.9 779.0 326.8 781.3 0.24 TRP 211 11473 -65.9 -76.9 20 11.0 -66.0 310 50 323.4 323.4 289.8 323.4 0.01 WND Sounding variables and indices 1000-500 mb thick: 5543.00 m Freezing level: 708.45 mb = 2933.02 m = 9622.64 ft Wetbulb zero: 721.68 mb = 2782.85 m = 9129.97 ft Precipitable water: 0.98 inches Sfc-500 mean rel hum: 75.39 % Est. max temperature: 24.51 C = 76.12 F Sfc-Lift cond lev (LCL): 980.50 mb = 250.82 m = 822.90 ft T: 10.88 C 700-500 lapse rate: 6.46 C/km ThetaE index: 5.49 C Layer 700.0- 652.0 mb Conv cond level (CCL): 997.00 mb = 111.80 m = 366.80 ft Mean mixing ratio: 7.19 g/kg Conv temperature: 8.90 C = 48.03 F Cap Strength: 6.88 C Lifted Index: 5.72 C Risk: None Lifted Index @300 mb: 8.04 C Lifted Index @700 mb: 4.12 C Showalter Index: 0.91 C Risk: Thunderstorms probable Total Totals Index: 51.00 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 28.50 C Cross Totals Index: 22.50 C K Index: 29.70 Risk: 40-60 % chance of thunderstorms Sweat Index: 164.60 Risk: None Energy Index: -0.14 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 26.80 J/kg Max Up Vert Vel: 7.32 m/s Conv Inhibition (B-): 54208.76 J/kg Cap Strength: 6.80 C Lift Cond Lev (LCL): 915.47 mb = 822.63 m = 2698.88 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 313 at 19 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 ---------------------------------------------------------- 0 997 112 225 3 2.1 2.1 | 142 19 -11.8 15.1 1 925 736 295 17 15.4 -7.2 | 195 6 1.5 5.8 2 850 1443 280 19 18.7 -3.3 | 206 11 4.8 9.7 3 700 3028 285 31 29.9 -8.0 | 253 17 16.0 5.0 4 500 5630 280 29 28.6 -5.0 | 242 17 14.7 7.9 5 400 7260 285 35 33.8 -9.1 | 259 20 19.9 3.9 6 300 9240 285 38 36.7 -9.8 | 262 23 22.8 3.1 7 250 10420 300 44 38.1 -22.0 | 290 26 24.2 -9.0 8 211 11473 310 50 38.3 -32.1 | 308 31 24.4 -19.2 9 200 11800 305 42 34.4 -24.1 | 298 23 20.5 -11.1 10 150 13600 285 33 31.9 -8.5 | 256 19 18.0 4.4 11 100 16180 300 29 25.1 -14.5 | 278 11 11.2 -1.5 12 70 18450 300 23 19.9 -11.5 | 256 6 6.0 1.5 13 50 20600 320 19 12.2 -14.6 | 47 2 -1.7 -1.6 14 30 23880 345 19 4.9 -18.4 | 59 10 -9.0 -5.4 15 20 26480 350 21 3.6 -20.7 | 53 13 -10.3 -7.7 Wind Parameters Mean winds (0-6000m): 283.0 at 25.4 knts Storm direction: 313.0 at 19.0 knts Shear (0-3000m) pos: 4.7 neg: 0.5 tot: 5.3 10-3/s Storm rel Dir Shear (0-3000m): 110.4 deg Storm rel helicity (0-3000m) pos: 87.0 neg: -0.1 tot: 86.9 m^2/s^2 ave: 29.0 10^-3 m/s^2 rel: 0.69 Storm rel vorticity (0-3000m) horiz: 6.1 stream: 4.2 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.72 Bulk Shear: 37.36 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 ------------------------------------------------------------------------------- 500 285 9 152 12| 13.2 0.0 13.2| 44.1 0.0 44.1 88.2 0.73| 14.6 10.7 1000 289 13 169 9| 8.7 0.0 8.7| 50.4 0.0 50.4 50.4 0.65| 10.8 7.0 1500 286 15 182 9| 5.8 1.1 6.8| 55.2 0.0 55.2 36.8 0.62| 8.4 5.2 2000 284 17 194 9| 5.3 0.8 6.1| 66.1 0.0 66.1 33.1 0.66| 7.3 4.8 2500 284 19 206 9| 5.0 0.6 5.7| 77.5 0.0 77.5 31.0 0.68| 6.6 4.5 3000 284 20 217 10| 4.7 0.5 5.3| 87.0 -0.1 86.9 29.0 0.69| 6.1 4.2 4000 284 23 228 11| 3.6 0.5 4.0| 87.0 -5.7 81.3 20.3 0.63| 4.7 3.0 5000 284 24 234 12| 2.8 0.4 3.3| 87.0 -11.3 75.7 15.1 0.57| 3.9 2.2 6000 283 25 236 13| 2.5 0.4 2.9| 94.5 -14.1 80.4 13.4 0.56| 3.5 2.0 Wrote GIF file: /home/apache/climate/data/raob//U2820/skewt/U2820.skewt.20250419.00.gif