UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101812.upa.cvt Date: 1200Z 18 OCT 25 Searching for U8661... Searching the city database file for: U8661 ... Date:1200Z 18 OCT 25 Station: U8661 WMO ident: 28661 Latitude: 55.47 Longitude: 65.40 ------------------------------------------------------------------------------- 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 1009 73 3.2 -5.8 52 9.0 -0.1 180 1 275.6 276.1 272.6 282.5 2.45 1 1000 145 1.8 -7.2 51 9.0 -1.3 210 1 275.0 275.3 271.8 281.1 2.22 2 925 769 -2.5 -9.5 59 7.0 -4.8 310 13 276.8 277.1 272.5 282.4 2.01 3 905 942 -3.9 -9.9 63 6.0 -5.8 318 17 277.0 277.4 272.7 282.7 1.99 4 902 968 -3.9 -9.9 63 6.0 -5.8 319 17 277.3 277.6 272.9 283.0 1.99 5 858 1361 -4.7 -13.7 49 9.0 -7.3 337 25 280.5 280.7 274.0 285.0 1.54 6 850 1435 -4.9 -14.9 45 10.0 -7.7 340 27 281.0 281.3 274.1 285.1 1.41 7 822 1698 -6.3 -19.3 35 13.0 -9.5 337 26 282.2 282.4 274.2 285.3 1.01 8 700 2936 -14.1 -26.1 35 12.0 -16.3 320 21 286.9 287.0 276.1 288.9 0.65 9 655 3439 -16.5 -26.5 42 10.0 -18.3 327 21 289.7 289.8 277.5 291.8 0.67 10 643 3578 -17.3 -25.3 50 8.0 -18.8 329 22 290.3 290.4 278.0 292.7 0.76 11 608 3998 -17.3 -19.4 84 2.1 -17.8 335 22 295.0 295.2 281.0 299.2 1.35 12 594 4172 -18.1 -20.0 85 1.9 -18.6 337 22 296.0 296.3 281.4 300.1 1.31 13 560 4611 -20.7 -23.1 81 2.4 -21.2 343 22 298.0 298.2 281.9 301.4 1.06 14 500 5440 -26.9 -33.9 52 7.0 -27.8 355 23 300.2 300.3 282.0 301.7 0.43 15 472 5851 -30.5 -38.5 45 8.0 -31.3 351 26 300.8 300.8 282.1 301.8 0.29 16 400 7000 -39.7 -43.7 66 4.0 -39.9 340 35 303.4 303.4 283.0 304.1 0.20 17 360 7713 -45.5 -48.8 69 3.3 -45.6 331 38 304.9 304.9 283.5 305.4 0.13 18 346 7976 -47.9 -51.4 67 3.5 -48.0 328 39 305.1 305.2 283.6 305.5 0.10 19 317 8550 -51.5 -55.6 61 4.1 -51.6 320 42 307.9 307.9 284.6 308.1 0.06 20 312 8653 -50.3 -54.5 61 4.2 -50.4 321 39 310.9 311.0 285.8 311.2 0.07 21 300 8910 -49.7 -54.3 58 4.6 -49.8 325 33 315.3 315.3 287.3 315.6 0.08 22 269 9628 -47.1 -54.1 45 7.0 -47.4 322 31 329.1 329.1 291.6 329.4 0.09 23 250 10110 -49.3 -57.3 39 8.0 -49.6 320 29 332.8 332.8 292.5 333.0 0.07 24 210 11252 -50.5 -62.5 23 12.0 -50.8 300 20 347.9 347.9 296.2 348.1 0.04 25 200 11570 -50.7 -63.7 20 13.0 -51.1 295 17 352.5 352.5 297.2 352.6 0.04 26 150 13430 -52.9 -69.9 11 17.0 -53.3 280 17 378.9 378.9 302.1 379.0 0.02 27 103 15832 -56.3 -75.3 7 19.0 -56.7 271 17 415.4 415.4 307.2 415.5 0.01 28 100 16020 -56.3 -75.3 7 19.0 -56.8 270 17 418.9 419.0 307.6 419.0 0.01 29 87 16897 -57.7 -76.7 7 19.0 -58.1 270 15 433.2 433.2 309.2 433.2 0.01 30 70 18260 -58.3 -78.3 6 20.0 -58.8 270 13 459.7 459.7 311.7 459.7 0.01 31 50 20370 -60.9 -80.9 5 20.0 -61.4 270 21 500.0 500.0 314.9 500.0 0.01 32 35 22585 -61.3 -81.3 5 20.0 -62.0 552.6 552.6 318.2 552.7 0.02 TRP 317 8550 -51.5 -55.6 61 4.1 -51.6 320 42 307.9 307.9 284.6 308.1 0.06 WND Sounding variables and indices 1000-500 mb thick: 5295.00 m Freezing level: 968.60 mb = 406.21 m = 1332.69 ft Wetbulb zero: Below ground Precipitable water: 0.27 inches Sfc-500 mean rel hum: 54.18 % Est. max temperature: 7.97 C = 46.34 F Sfc-Lift cond lev (LCL): 877.31 mb = 1186.25 m = 3891.84 ft T: -4.34 C 700-500 lapse rate: 5.11 C/km ThetaE index: 1.33 C Layer 1000.0- 925.0 mb Conv cond level (CCL): 734.55 mb = 2564.66 m = 8414.14 ft Mean mixing ratio: 2.11 g/kg Conv temperature: 13.08 C = 55.54 F Cap Strength: 14.55 C Lifted Index: 15.50 C Risk: None Lifted Index @300 mb: 23.70 C Lifted Index @700 mb: 7.15 C Showalter Index: 13.01 C Risk: None Total Totals Index: 34.00 C Risk: None Vertical Totals Index: 22.00 C Cross Totals Index: 12.00 C K Index: -4.90 Risk: None Sweat Index: 77.00 Risk: None Energy Index: 3.48 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 4.68 J/kg Max Up Vert Vel: 3.06 m/s Conv Inhibition (B-): 42295.11 J/kg Cap Strength: 15.42 C Lift Cond Lev (LCL): 846.81 mb = 1464.52 m = 4804.80 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 6 at 16 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 1009 73 180 1 0.0 1.0 | 186 17 1.7 16.6 1 1000 145 210 1 0.5 0.9 | 188 17 2.2 16.5 2 925 769 310 13 10.0 -8.4 | 238 14 11.7 7.2 3 850 1435 340 27 9.2 -25.4 | 312 15 10.9 -9.8 4 700 2936 320 21 13.5 -16.1 | 272 15 15.2 -0.5 5 500 5440 355 23 2.0 -22.9 | 333 8 3.7 -7.3 6 400 7000 340 35 12.0 -32.9 | 322 22 13.7 -17.3 7 317 8550 320 42 27.0 -32.2 | 300 33 28.7 -16.6 8 300 8910 325 33 18.9 -27.0 | 299 24 20.6 -11.4 9 250 10110 320 29 18.6 -22.2 | 288 21 20.3 -6.6 10 200 11570 295 17 15.4 -7.2 | 244 19 17.1 8.4 11 150 13430 280 17 16.7 -3.0 | 236 22 18.4 12.6 12 100 16020 270 17 17.0 -0.0 | 230 24 18.7 15.6 13 70 18260 270 13 13.0 -0.0 | 223 21 14.7 15.6 14 50 20370 270 21 21.0 -0.0 | 236 28 22.7 15.6 Wind Parameters Mean winds (0-6000m): 336.2 at 20.9 knts Storm direction: 6.2 at 15.7 knts Shear (0-3000m) pos: 4.7 neg: 1.5 tot: 6.2 10-3/s Storm rel Dir Shear (0-3000m): 88.1 deg Storm rel helicity (0-3000m) pos: 135.5 neg: -38.4 tot: 97.1 m^2/s^2 ave: 32.4 10^-3 m/s^2 rel: 0.52 Storm rel vorticity (0-3000m) horiz: 7.8 stream: 4.0 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.09 Bulk Shear: 50.10 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 ------------------------------------------------------------------------------- 500 271 5 202 17| 9.7 0.0 9.7| 48.5 0.0 48.5 97.0 0.93| 11.1 10.3 1000 312 9 223 13| 10.4 0.0 10.4| 99.1 0.0 99.1 99.1 0.92| 13.1 12.0 1500 327 14 249 10| 9.4 0.0 9.4|133.9 -2.8 131.1 87.4 0.90| 12.3 11.1 2000 330 17 265 10| 7.0 0.9 8.0|133.9 -16.6 117.3 58.7 0.72| 10.2 7.4 2500 330 18 272 11| 5.6 1.4 7.1|133.9 -29.8 104.2 41.7 0.59| 8.8 5.2 3000 329 19 273 12| 4.7 1.5 6.2|135.5 -38.4 97.1 32.4 0.52| 7.8 4.0 4000 329 20 276 12| 3.8 1.1 4.9|150.1 -38.4 111.7 27.9 0.54| 6.6 3.6 5000 332 20 281 11| 3.2 0.9 4.1|162.8 -38.4 124.5 24.9 0.58| 5.8 3.3 6000 336 21 289 11| 2.8 0.6 3.4|167.2 -40.7 126.5 21.1 0.53| 5.5 2.9 Wrote GIF file: /home/apache/climate/data/raob//U8661/skewt/U8661.skewt.20251018.12.gif