UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041800.upa.cvt Date: 0000Z 18 APR 25 Searching for U2271... Searching the city database file for: U2271 ... Date:0000Z 18 APR 25 Station: U2271 WMO ident: 22271 Latitude: 67.88 Longitude: 44.13 ------------------------------------------------------------------------------- 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 1012 7 -1.9 -2.5 96 0.6 -2.1 135 17 270.3 270.8 270.4 278.8 3.14 1 1000 102 -2.3 -3.6 91 1.3 -2.8 145 23 270.9 271.3 270.4 278.8 2.92 2 961 418 -3.5 -3.9 97 0.4 -3.7 165 14 272.7 273.2 271.6 280.8 2.98 3 925 720 -2.9 -3.4 96 0.5 -3.1 185 5 276.3 276.9 274.1 285.2 3.21 4 895 981 -3.3 -3.7 97 0.4 -3.4 232 10 278.5 279.1 275.4 287.6 3.24 5 857 1326 -1.5 -2.0 96 0.5 -1.7 293 16 283.9 284.6 279.0 294.8 3.85 6 850 1391 -1.5 -2.0 96 0.5 -1.7 305 17 284.6 285.2 279.4 295.6 3.88 7 778 2095 -2.9 -3.4 96 0.5 -3.1 303 25 290.4 291.0 282.0 301.5 3.82 8 700 2924 -8.3 -8.9 95 0.6 -8.5 300 35 293.3 293.8 282.0 301.6 2.78 9 667 3296 -10.7 -11.1 97 0.4 -10.8 303 41 294.7 295.1 282.2 302.1 2.45 10 622 3829 -13.9 -16.0 84 2.1 -14.5 307 49 297.0 297.3 282.4 302.4 1.76 11 585 4292 -15.5 -23.5 50 8.0 -17.3 311 56 300.3 300.5 282.8 303.5 0.98 12 552 4728 -17.1 -19.9 79 2.8 -17.8 314 63 303.5 303.7 284.6 308.1 1.43 13 508 5344 -22.1 -23.6 88 1.5 -22.4 319 73 304.7 304.9 284.7 308.4 1.12 14 500 5460 -22.9 -24.5 87 1.6 -23.2 320 75 305.1 305.3 284.8 308.6 1.05 15 400 7050 -37.1 -39.8 76 2.7 -37.3 320 79 306.8 306.8 284.5 307.8 0.30 16 362 7734 -42.9 -46.3 69 3.4 -43.1 322 86 307.9 307.9 284.8 308.5 0.17 17 343 8096 -47.5 -50.8 69 3.3 -47.6 323 90 306.4 306.5 284.1 306.8 0.11 18 310 8759 -53.1 -56.5 66 3.4 -53.2 324 97 307.6 307.6 284.5 307.8 0.06 19 300 8970 -54.3 -57.8 65 3.5 -54.4 325 99 308.8 308.8 284.9 309.0 0.05 20 294 9098 -55.1 -58.6 65 3.5 -55.2 326 100 309.5 309.5 285.2 309.6 0.05 21 278 9451 -57.2 -60.7 65 3.5 -57.3 330 104 311.4 311.4 285.9 311.5 0.04 22 250 10110 -61.3 -64.7 64 3.4 -61.3 325 95 314.9 314.9 287.1 315.0 0.03 23 245 10234 -63.1 -66.7 62 3.6 -63.1 325 89 314.1 314.1 286.8 314.1 0.02 24 240 10361 -62.9 -66.4 62 3.5 -62.9 326 85 316.2 316.2 287.5 316.3 0.02 25 234 10517 -61.1 -64.5 64 3.4 -61.2 326 81 321.2 321.3 289.2 321.4 0.03 26 232 10571 -56.9 -60.3 65 3.4 -57.0 326 79 328.4 328.4 291.3 328.6 0.05 27 214 11085 -53.3 -56.9 65 3.6 -53.4 328 64 341.7 341.7 294.8 342.0 0.08 28 200 11520 -53.5 -57.4 62 3.9 -53.6 330 52 348.0 348.1 296.3 348.4 0.08 29 150 13380 -52.1 -58.1 48 6.0 -52.4 320 42 380.3 380.3 302.3 380.8 0.10 30 100 16000 -51.9 -59.9 38 8.0 -52.4 330 36 427.4 427.5 308.6 428.1 0.12 31 70 18320 -51.7 -61.7 29 10.0 -52.5 340 33 473.8 473.8 313.0 474.6 0.14 32 50 20500 -52.5 -63.5 25 11.0 -53.5 350 33 519.8 519.8 316.4 520.7 0.15 33 37 22452 -50.5 -62.5 23 12.0 -52.1 350 33 571.6 571.7 319.3 573.3 0.23 34 30 23810 -53.3 -66.3 19 13.0 -54.8 350 33 599.3 599.4 320.6 600.6 0.17 35 29 24028 -53.3 -66.3 19 13.0 -54.9 605.2 605.2 320.9 606.5 0.18 36 24 25249 -52.5 -66.5 17 14.0 -54.5 641.2 641.2 322.4 642.8 0.21 TRP 245 10234 -63.1 -66.7 62 3.6 -63.1 325 89 314.1 314.1 286.8 314.1 0.02 WND 278 9451 -57.2 -60.7 65 3.5 -57.3 330 104 311.4 311.4 285.9 311.5 0.04 Sounding variables and indices 1000-500 mb thick: 5358.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.60 inches Sfc-500 mean rel hum: 88.64 % Est. max temperature: 11.00 C = 51.80 F Sfc-Lift cond lev (LCL): 1002.44 mb = 82.67 m = 271.24 ft T: -2.22 C 700-500 lapse rate: 5.76 C/km ThetaE index: 0.01 C Layer 1000.0- 961.0 mb Conv cond level (CCL): 710.05 mb = 2812.05 m = 9225.77 ft Mean mixing ratio: 3.05 g/kg Conv temperature: 20.75 C = 69.35 F Cap Strength: 19.51 C Lifted Index: 19.74 C Risk: None Lifted Index @300 mb: 19.27 C Lifted Index @700 mb: 13.13 C Showalter Index: 9.19 C Risk: None Total Totals Index: 42.30 C Risk: None Vertical Totals Index: 21.40 C Cross Totals Index: 20.90 C K Index: 18.80 Risk: < 20 % chance of thunderstorms Sweat Index: 109.00 Risk: None Energy Index: 2.66 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 27.47 J/kg Max Up Vert Vel: 7.41 m/s Conv Inhibition (B-): 49789.45 J/kg Cap Strength: 19.72 C Lift Cond Lev (LCL): 950.38 mb = 505.57 m = 1658.66 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 341 at 30 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 1012 7 135 17 -12.0 12.0 | 152 46 -21.6 40.6 1 1000 102 145 23 -13.2 18.8 | 154 53 -22.8 47.4 2 925 720 185 5 0.4 5.0 | 165 35 -9.2 33.6 3 850 1391 305 17 13.9 -9.8 | 193 19 4.3 18.8 4 700 2924 300 35 30.3 -17.5 | 242 23 20.7 11.1 5 500 5460 320 75 48.2 -57.5 | 307 48 38.6 -28.9 6 400 7050 320 79 50.8 -60.5 | 308 52 41.2 -31.9 7 300 8970 325 99 56.8 -81.1 | 318 71 47.2 -52.5 8 278 9451 330 104 52.0 -90.1 | 325 75 42.4 -61.5 9 250 10110 325 95 54.5 -77.8 | 318 67 44.9 -49.2 10 245 10234 325 89 51.0 -72.9 | 317 61 41.4 -44.3 11 200 11520 330 52 26.0 -45.0 | 315 23 16.4 -16.5 12 150 13380 320 42 27.0 -32.2 | 282 18 17.4 -3.6 13 100 16000 330 36 18.0 -31.2 | 287 9 8.4 -2.6 14 70 18320 340 33 11.3 -31.0 | 325 3 1.7 -2.4 15 50 20500 350 33 5.7 -32.5 | 45 6 -3.9 -3.9 16 30 23810 350 33 5.7 -32.5 | 45 6 -3.9 -3.9 Wind Parameters Mean winds (0-6000m): 311.4 at 40.2 knts Storm direction: 341.4 at 30.2 knts Shear (0-3000m) pos: 6.0 neg: 3.1 tot: 9.1 10-3/s Storm rel Dir Shear (0-3000m): 93.1 deg Storm rel helicity (0-3000m) pos: 368.5 neg: -0.6 tot: 367.9 m^2/s^2 ave: 122.6 10^-3 m/s^2 rel: 0.62 Storm rel vorticity (0-3000m) horiz: 12.4 stream: 7.7 10^-3/s Energy-Hel index: 0.05 Bulk Rich Number: 0.06 Bulk Shear: 432.31 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 ------------------------------------------------------------------------------- 500 151 18 157 48| 10.7 0.0 10.7|129.6 0.0 129.6 259.2 0.49| 21.4 10.5 1000 159 13 161 43| 11.0 0.0 11.0|211.2 -0.6 210.6 210.6 0.53| 18.2 9.7 1500 191 13 170 42| 12.1 0.0 12.1|279.0 -0.6 278.3 185.6 0.51| 18.6 9.6 2000 267 15 191 30| 9.1 1.5 10.6|308.0 -0.6 307.3 153.7 0.56| 15.4 8.7 2500 287 18 197 24| 7.2 2.4 9.7|336.8 -0.6 336.2 134.5 0.60| 13.6 8.1 3000 293 20 204 23| 6.0 3.1 9.1|368.5 -0.6 367.9 122.6 0.62| 12.4 7.7 4000 299 26 220 21| 6.6 2.3 9.0|476.9 -0.6 476.3 119.1 0.67| 11.5 7.7 5000 306 33 242 19| 7.0 1.9 8.9|611.8 -0.6 611.2 122.2 0.69| 11.0 7.6 6000 311 40 265 21| 6.5 1.6 8.1|689.8 -0.6 689.2 114.9 0.69| 10.0 6.9 Wrote GIF file: /home/apache/climate/data/raob//U2271/skewt/U2271.skewt.20250418.00.gif