UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120900.upa.cvt Date: 0000Z 9 DEC 25 Searching for U4908... Searching the city database file for: U4908 ... Date:0000Z 9 DEC 25 Station: U4908 WMO ident: 24908 Latitude: 60.33 Longitude: 102.27 ------------------------------------------------------------------------------- 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 0 0.2 -4.8 69 5.0 -1.6 0 0 273.4 273.8 271.5 280.7 2.67 1 500 5120 -44.3 -50.3 51 6.0 -44.5 350 27 279.0 279.0 270.7 279.3 0.08 2 412 6390 -52.1 -58.1 48 6.0 -52.2 354 25 284.9 284.9 274.0 285.0 0.04 3 400 6580 -53.1 -59.1 48 6.0 -53.2 355 25 286.0 286.0 274.6 286.1 0.03 4 300 8400 -61.5 -66.5 51 5.0 -61.6 350 36 298.6 298.7 280.8 298.7 0.02 5 281 8805 -63.1 -68.1 51 5.0 -63.1 350 35 302.0 302.0 282.2 302.0 0.01 6 250 9530 -60.9 -65.9 52 5.0 -61.0 335 29 315.5 315.5 287.3 315.6 0.02 7 226 10161 -58.7 -63.7 52 5.0 -58.7 326 28 328.1 328.1 291.2 328.3 0.03 8 200 10930 -57.9 -62.9 53 5.0 -58.0 315 27 341.1 341.1 294.6 341.2 0.04 9 175 11772 -58.1 -64.1 46 6.0 -58.2 354.0 354.0 297.5 354.2 0.04 TRP 281 8805 -63.1 -68.1 51 5.0 -63.1 350 35 302.0 302.0 282.2 302.0 0.01 WND Sounding variables and indices 1000-500 mb thick: 5120.00 m Freezing level: 997.75 mb = 23.01 m = 75.50 ft Wetbulb zero: Below ground Precipitable water: 0.28 inches Sfc-500 mean rel hum: 60.13 % Est. max temperature: 2.28 C = 36.10 F Sfc-Lift cond lev (LCL): 924.88 mb = 576.80 m = 1892.35 ft T: -4.81 C 700-500 lapse rate: 8.69 C/km Conv cond level (CCL): 500.00 mb = 5120.00 m = 16797.70 ft Mean mixing ratio: 4.00 g/kg Conv temperature: 49.40 C = 120.91 F Cap Strength: 0.47 C Lifted Index: -2.78 C Risk: Severe thunderstorms possible Lifted Index @300 mb: 11.08 C Lifted Index @700 mb: -2.27 C Showalter Index: 0.15 C Risk: Thunderstorms probable Total Totals Index: 62.90 C Risk: Severe Thunderstorms probable Vertical Totals Index: 34.07 C Cross Totals Index: 28.83 C K Index: 13.08 Risk: None Sweat Index: 317.62 Risk: Showers and thunderstorms possible Energy Index: 0.21 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 155926.48 J/kg Max Up Vert Vel: 558.44 m/s Conv Inhibition (B-): 654.68 J/kg Cap Strength: 1.04 C Lift Cond Lev (LCL): 1022.82 mb = -9999.00 m = -9999.00 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 10 at 15 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 1013 0 0 0 -0.0 -0.0 | 190 15 2.4 14.4 1 999 119 0 0 -0.0 -0.0 | 190 15 2.4 14.4 2 925 801 275 11 11.0 -1.0 | 225 19 13.4 13.4 3 850 1406 315 13 9.2 -9.2 | 246 13 11.6 5.2 4 700 2796 340 21 7.2 -19.7 | 299 11 9.6 -5.4 5 500 5120 350 27 4.7 -26.6 | 330 14 7.1 -12.2 6 400 6580 355 25 2.2 -24.9 | 336 12 4.6 -10.5 7 300 8400 350 36 6.3 -35.5 | 338 23 8.7 -21.1 8 281 8805 350 35 6.1 -34.5 | 337 22 8.5 -20.1 9 250 9530 335 29 12.3 -26.3 | 309 19 14.7 -11.9 10 200 10930 315 27 19.1 -19.1 | 282 22 21.5 -4.7 Wind Parameters Mean winds (0-6000m): 339.6 at 19.4 knts Storm direction: 9.6 at 14.6 knts Shear (0-3000m) pos: 2.9 neg: 2.0 tot: 4.9 10-3/s Storm rel Dir Shear (0-3000m): 112.7 deg Storm rel helicity (0-3000m) pos: 86.9 neg: 0.0 tot: 86.9 m^2/s^2 ave: 29.0 10^-3 m/s^2 rel: 0.73 Storm rel vorticity (0-3000m) horiz: 5.9 stream: 4.3 10^-3/s Energy-Hel index: 66.60 Bulk Rich Number: 4023.27 Bulk Shear: 38.76 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 ------------------------------------------------------------------------------- 500 313 2 198 13| 0.0 6.3 6.3| 17.3 0.0 17.3 34.6 0.79| 6.9 5.5 1000 278 6 212 16| 0.0 6.0 6.0| 36.8 0.0 36.8 36.8 0.59| 8.6 5.1 1500 293 9 223 15| 2.2 4.0 6.2| 54.2 0.0 54.2 36.1 0.62| 8.0 5.0 2000 304 10 232 14| 2.6 3.0 5.6| 65.8 0.0 65.8 32.9 0.67| 7.0 4.6 2500 314 12 241 13| 2.9 2.4 5.3| 77.8 0.0 77.8 31.1 0.71| 6.4 4.5 3000 321 13 250 11| 2.9 2.0 4.9| 86.9 0.0 86.9 29.0 0.73| 5.9 4.3 4000 330 16 266 10| 2.6 1.5 4.1| 95.8 0.0 95.8 23.9 0.75| 4.8 3.6 5000 336 18 281 10| 2.4 1.2 3.6|105.6 0.0 105.6 21.1 0.76| 4.2 3.2 6000 340 19 293 10| 2.0 1.0 3.0|110.0 0.0 110.0 18.3 0.75| 3.7 2.7 Wrote GIF file: /home/apache/climate/data/raob//U4908/skewt/U4908.skewt.20251209.00.gif