UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101800.upa.cvt Date: 0000Z 18 OCT 25 Searching for U8951... Searching the city database file for: U8951 ... Date:0000Z 18 OCT 25 Station: U8951 WMO ident: 28951 Latitude: 53.23 Longitude: 63.62 ------------------------------------------------------------------------------- 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 131 280 5 SFC 995 171 1.0 -0.5 90 1.5 0.4 280 5 274.5 275.2 273.8 284.6 3.70 2 925 752 -0.7 -3.4 82 2.7 -1.7 330 15 278.6 279.1 275.4 287.5 3.21 3 850 1423 -4.5 325 17 281.4 4 713 2797 -9.5 -9.5 100 0.0 -9.5 334 24 290.4 290.9 280.5 298.1 2.61 5 700 2939 -10.7 -10.7 100 0.0 -10.7 335 25 290.6 291.1 280.4 297.8 2.41 6 500 5440 -29.5 -29.5 100 0.0 -29.5 355 27 297.1 297.2 281.0 299.2 0.66 7 416 6715 -41.1 -43.0 82 1.9 -41.2 20 20 298.2 298.2 280.8 298.9 0.21 8 400 6980 -42.5 -44.9 77 2.4 -42.6 25 19 299.8 299.8 281.5 300.4 0.17 9 349 7895 -46.3 -50.9 59 4.6 -46.4 330 19 306.5 306.6 284.1 306.9 0.10 10 327 8331 -43.5 -48.5 58 5.0 -43.7 313 26 316.2 316.2 287.6 316.7 0.14 11 300 8910 -44.7 -50.7 51 6.0 -45.0 290 36 322.4 322.4 289.6 322.8 0.12 12 279 9397 -44.3 -51.3 46 7.0 -44.6 286 35 329.7 329.7 291.7 330.2 0.12 13 250 10130 -46.3 -54.3 40 8.0 -46.7 280 33 337.2 337.3 293.7 337.6 0.10 14 200 11600 -49.3 -59.3 30 10.0 -49.7 270 27 354.7 354.7 297.7 355.0 0.06 15 150 13470 -52.7 -63.7 25 11.0 -53.1 250 15 379.3 379.3 302.2 379.5 0.05 TRP 349 7895 -46.3 -50.9 59 4.6 -46.4 330 19 306.5 306.6 284.1 306.9 0.10 WND Sounding variables and indices 1000-500 mb thick: 5309.00 m Freezing level: 953.82 mb = 512.78 m = 1682.33 ft Wetbulb zero: 982.68 mb = 270.28 m = 886.75 ft Precipitable water: 0.51 inches Sfc-500 mean rel hum: 97.58 % Est. max temperature: 8.18 C = 46.72 F Sfc-Lift cond lev (LCL): 971.93 mb = 357.88 m = 1174.13 ft T: 0.45 C 700-500 lapse rate: 7.52 C/km ThetaE index: 0.34 C Layer 700.0- 500.0 mb Conv cond level (CCL): 865.82 mb = 1276.66 m = 4188.47 ft Mean mixing ratio: 3.37 g/kg Conv temperature: 7.27 C = 45.08 F Cap Strength: 7.24 C Lifted Index: 9.24 C Risk: None Lifted Index @300 mb: 25.30 C Lifted Index @700 mb: 7.15 C Showalter Index: 6.75 C Risk: None Total Totals Index: 49.12 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 25.00 C Cross Totals Index: 24.12 C K Index: 19.62 Risk: < 20 % chance of thunderstorms Sweat Index: 63.37 Risk: None Energy Index: 1.97 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 16.97 J/kg Max Up Vert Vel: 5.83 m/s Conv Inhibition (B-): 10937.92 J/kg Cap Strength: 9.22 C Lift Cond Lev (LCL): 912.17 mb = 862.85 m = 2830.85 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 12 at 17 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 ---------------------------------------------------------- 0 995 171 280 5 4.9 -0.9 | 208 17 8.3 15.4 1 925 752 330 15 7.5 -13.0 | 253 11 10.9 3.2 2 850 1423 325 17 9.8 -13.9 | 260 13 13.1 2.3 3 700 2939 335 25 10.6 -22.7 | 295 15 14.0 -6.4 4 500 5440 355 27 2.4 -26.9 | 332 12 5.7 -10.7 5 400 6980 25 19 -8.0 -17.2 | 78 5 -4.6 -1.0 6 349 7895 330 19 9.5 -16.5 | 271 13 12.9 -0.2 7 300 8910 290 36 33.8 -12.3 | 264 37 37.2 3.9 8 250 10130 280 33 32.5 -5.7 | 254 37 35.9 10.5 9 200 11600 270 27 27.0 -0.0 | 242 34 30.4 16.2 10 150 13470 250 15 14.1 5.1 | 219 28 17.5 21.4 Wind Parameters Mean winds (0-6000m): 341.8 at 22.1 knts Storm direction: 11.8 at 16.6 knts Shear (0-3000m) pos: 3.6 neg: 0.4 tot: 3.9 10-3/s Storm rel Dir Shear (0-3000m): 89.1 deg Storm rel helicity (0-3000m) pos: 86.2 neg: 0.0 tot: 86.2 m^2/s^2 ave: 28.7 10^-3 m/s^2 rel: 0.88 Storm rel vorticity (0-3000m) horiz: 4.3 stream: 3.8 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.62 Bulk Shear: 27.28 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 ------------------------------------------------------------------------------- 500 316 9 226 14| 10.8 0.0 10.8| 41.1 0.0 41.1 82.3 0.89| 11.5 10.3 1000 324 12 240 12| 6.9 0.0 6.9| 49.7 0.0 49.7 49.7 0.85| 7.6 6.5 1500 325 14 247 12| 4.6 0.7 5.3| 56.2 0.0 56.2 37.5 0.85| 5.9 5.0 2000 326 15 254 13| 4.2 0.5 4.7| 66.5 0.0 66.5 33.2 0.87| 5.1 4.5 2500 328 17 260 13| 3.9 0.4 4.3| 77.2 0.0 77.2 30.9 0.88| 4.7 4.1 3000 329 18 267 13| 3.6 0.4 3.9| 86.2 0.0 86.2 28.7 0.88| 4.3 3.8 4000 333 20 277 13| 2.9 0.3 3.2| 98.8 0.0 98.8 24.7 0.89| 3.7 3.3 5000 337 21 287 12| 2.5 0.2 2.7|111.0 0.0 111.0 22.2 0.90| 3.4 3.0 6000 342 22 295 11| 1.9 0.2 2.1|126.0 0.0 126.0 21.0 0.86| 3.5 3.0 Wrote GIF file: /home/apache/climate/data/raob//U8951/skewt/U8951.skewt.20251018.00.gif