UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120612.upa.cvt Date: 1200Z 6 DEC 25 Searching for U4908... Searching the city database file for: U4908 ... Date:1200Z 6 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 ------------------------------------------------------------------------------- 0 1000 107 SFC 980 258 -18.9 -20.9 84 2.0 -19.2 225 1 255.7 255.8 255.2 257.7 0.74 2 967 358 -16.1 -19.0 78 2.9 -16.6 237 5 259.5 259.7 258.6 261.9 0.88 3 925 693 -16.7 -18.9 83 2.2 -17.1 275 17 262.2 262.4 260.8 264.8 0.93 4 892 966 -16.1 -18.4 82 2.3 -16.5 269 14 265.6 265.8 263.5 268.4 1.00 5 850 1328 -17.9 -20.5 80 2.6 -18.3 260 11 267.4 267.5 264.6 269.9 0.88 6 821 1586 -19.7 -22.4 79 2.7 -20.1 254 11 268.2 268.3 264.9 270.4 0.77 7 800 1779 -19.1 -21.6 81 2.5 -19.5 249 12 270.8 270.9 266.8 273.2 0.85 8 700 2758 -26.1 -29.0 77 2.9 -26.4 225 13 273.6 273.7 268.1 275.1 0.50 9 500 5100 -44.1 -46.5 77 2.4 -44.2 235 11 279.3 279.3 270.9 279.7 0.12 10 400 6560 -55.5 -58.2 72 2.7 -55.5 225 17 282.9 282.9 272.9 283.0 0.04 11 398 6592 -55.7 -58.4 72 2.7 -55.8 226 17 283.0 283.0 272.9 283.1 0.04 12 328 7813 -60.5 -63.4 69 2.9 -60.5 275 13 292.5 292.5 277.9 292.6 0.02 13 303 8308 -60.7 -63.6 68 2.9 -60.7 293 15 298.9 298.9 280.9 299.0 0.02 14 300 8370 -60.9 -63.8 68 2.9 -60.9 295 15 299.5 299.5 281.1 299.6 0.02 15 250 9500 -58.5 -61.6 67 3.1 -58.6 290 19 319.1 319.1 288.5 319.2 0.04 16 228 10080 -56.7 -59.9 67 3.2 -56.8 288 20 330.4 330.4 291.9 330.6 0.05 17 200 10910 -56.3 -59.7 65 3.4 -56.4 285 21 343.6 343.6 295.3 343.9 0.06 18 150 12740 -57.7 -61.7 60 4.0 -57.8 300 21 370.7 370.7 300.7 371.0 0.06 19 100 15290 -58.9 -63.7 54 4.8 -59.0 265 21 413.9 413.9 307.0 414.3 0.07 20 95 15612 -59.9 -64.8 53 4.9 -60.0 264 22 418.1 418.1 307.5 418.4 0.07 21 70 17510 -62.9 -67.9 51 5.0 -63.0 255 25 449.8 449.8 310.8 450.1 0.06 22 50 19570 -65.3 -71.3 43 6.0 -65.5 250 40 489.6 489.6 314.2 489.9 0.05 23 30 22650 -69.5 -75.5 41 6.0 -69.6 245 36 555.2 555.2 318.4 555.5 0.05 24 22 24500 -70.5 -76.5 41 6.0 -70.7 241 75 603.7 603.7 320.8 604.1 0.05 25 21 24777 -69.4 -75.9 38 6.5 -69.7 240 81 615.0 615.0 321.3 615.5 0.06 26 20 25070 -68.3 -75.3 36 7.0 -68.6 250 73 627.1 627.1 321.8 627.6 0.07 27 18 25699 -70.1 -76.1 41 6.0 -70.4 640.6 640.6 322.3 641.2 0.07 28 15 26792 -67.1 -74.1 36 7.0 -67.6 684.9 684.9 324.0 685.8 0.11 TRP 328 7813 -60.5 -63.4 69 2.9 -60.5 275 13 292.5 292.5 277.9 292.6 0.02 WND 21 24777 -69.4 -75.9 38 6.5 -69.7 240 81 615.0 615.0 321.3 615.5 0.06 Sounding variables and indices 1000-500 mb thick: 4993.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.13 inches Sfc-500 mean rel hum: 78.34 % Est. max temperature: -6.77 C = 19.81 F Sfc-Lift cond lev (LCL): 948.35 mb = 505.03 m = 1656.90 ft T: -16.36 C 700-500 lapse rate: 7.69 C/km ThetaE index: 0.00 C Layer 980.0- -0.0 mb Conv cond level (CCL): 980.00 mb = 257.88 m = 846.06 ft Mean mixing ratio: 0.92 g/kg Conv temperature: -18.29 C = -0.92 F Cap Strength: 8.80 C Lifted Index: 12.07 C Risk: None Lifted Index @300 mb: 24.69 C Lifted Index @700 mb: 8.80 C Showalter Index: 7.85 C Risk: None Total Totals Index: 49.80 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 26.20 C Cross Totals Index: 23.60 C K Index: 2.80 Risk: None Sweat Index: 49.00 Risk: None Energy Index: 2.06 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 32.92 J/kg Max Up Vert Vel: 8.11 m/s Conv Inhibition (B-): 52507.09 J/kg Cap Strength: 12.02 C Lift Cond Lev (LCL): 892.83 mb = 959.17 m = 3146.84 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 269 at 9 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 ---------------------------------------------------------- 0 980 258 225 1 0.7 0.7 | 93 9 -8.5 0.5 1 925 693 275 17 16.9 -1.5 | 282 8 7.7 -1.7 2 850 1328 260 11 10.8 1.9 | 224 2 1.6 1.7 3 700 2758 225 13 9.2 9.2 | 180 9 -0.0 9.0 4 500 5100 235 11 9.0 6.3 | 178 6 -0.2 6.1 5 400 6560 225 17 12.0 12.0 | 193 12 2.8 11.8 6 328 7813 275 13 13.0 -1.1 | 290 4 3.7 -1.3 7 300 8370 295 15 13.6 -6.3 | 326 8 4.4 -6.6 8 250 9500 290 19 17.9 -6.5 | 308 11 8.6 -6.7 9 200 10910 285 21 20.3 -5.4 | 297 12 11.1 -5.6 10 150 12740 300 21 18.2 -10.5 | 320 14 9.0 -10.7 11 100 15290 265 21 20.9 1.8 | 262 12 11.7 1.6 12 70 17510 255 25 24.1 6.5 | 247 16 14.9 6.3 13 50 19570 250 40 37.6 13.7 | 245 31 28.4 13.5 14 30 22650 245 36 32.6 15.2 | 237 28 23.4 15.0 15 21 24777 240 81 70.1 40.5 | 237 73 60.9 40.3 16 20 25070 250 73 68.6 25.0 | 247 64 59.4 24.8 Wind Parameters Mean winds (0-6000m): 238.7 at 12.3 knts Storm direction: 268.7 at 9.2 knts Shear (0-3000m) pos: 2.7 neg: 2.1 tot: 4.9 10-3/s Storm rel Dir Shear (0-3000m): 86.8 deg Storm rel helicity (0-3000m) pos: 15.6 neg: -9.9 tot: 5.6 m^2/s^2 ave: 1.9 10^-3 m/s^2 rel: 0.21 Storm rel vorticity (0-3000m) horiz: 5.6 stream: 1.2 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 5.22 Bulk Shear: 6.31 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 ------------------------------------------------------------------------------- 500 273 10 314 1| 16.2 0.0 16.2| 15.5 0.0 15.5 31.0 0.80| 18.6 14.8 1000 271 12 277 3| 8.1 2.8 10.9| 15.5 -4.0 11.5 11.5 0.47| 12.2 5.8 1500 266 12 257 3| 5.4 2.6 8.0| 15.5 -5.4 10.1 6.7 0.36| 9.1 3.2 2000 260 12 233 3| 4.0 2.5 6.6| 15.5 -7.1 8.4 4.2 0.28| 7.5 2.1 2500 254 12 216 4| 3.2 2.6 5.8| 15.5 -9.9 5.6 2.2 0.22| 6.6 1.4 3000 249 12 207 5| 2.7 2.1 4.9| 15.6 -9.9 5.6 1.9 0.21| 5.6 1.2 4000 243 12 197 5| 2.1 1.6 3.7| 15.6 -10.0 5.5 1.4 0.20| 4.3 0.9 5000 241 12 193 6| 1.7 1.3 3.0| 16.2 -10.3 5.9 1.2 0.20| 3.6 0.7 6000 239 12 192 6| 1.4 1.3 2.7| 19.6 -10.3 9.3 1.5 0.22| 3.4 0.7 Wrote GIF file: /home/apache/climate/data/raob//U4908/skewt/U4908.skewt.20251206.12.gif