UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120912.upa.cvt Date: 1200Z 9 DEC 25 Searching for U4908... Searching the city database file for: U4908 ... Date:1200Z 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 ------------------------------------------------------------------------------- 0 1000 254 190 1 SFC 999 261 -41.7 -45.4 67 3.7 -41.8 190 1 231.5 231.5 231.5 231.7 0.07 2 991 316 -35.1 -39.8 62 4.7 -35.3 199 3 238.7 238.7 238.5 239.0 0.12 3 984 366 -35.3 -40.0 62 4.7 -35.5 208 5 238.9 239.0 238.7 239.3 0.12 4 954 583 -32.3 -36.7 65 4.4 -32.5 244 12 244.1 244.1 243.7 244.6 0.17 5 936 720 -25.3 -29.6 67 4.3 -25.7 266 16 252.6 252.6 251.7 253.6 0.35 6 925 806 -23.9 -27.8 70 3.9 -24.3 280 19 254.9 254.9 253.8 256.0 0.42 7 912 909 -23.7 -27.2 73 3.5 -24.1 283 19 256.1 256.2 254.9 257.4 0.45 8 850 1423 -24.3 -27.9 72 3.6 -24.7 295 19 260.7 260.8 258.6 262.0 0.45 9 799 1875 -23.5 -26.9 74 3.4 -23.9 306 20 266.2 266.3 263.0 267.7 0.53 10 757 2267 -26.7 -29.8 75 3.1 -27.0 316 20 266.9 266.9 263.3 268.1 0.43 11 746 2373 -24.5 -27.7 75 3.2 -24.9 319 20 270.4 270.5 266.0 271.9 0.53 12 700 2834 -27.7 -31.2 72 3.5 -28.0 330 21 271.8 271.9 266.7 273.0 0.40 13 623 3661 -33.3 -37.1 69 3.8 -33.6 344 28 274.6 274.7 268.2 275.4 0.25 14 585 4100 -35.7 -39.4 69 3.7 -35.9 351 31 276.8 276.8 269.6 277.5 0.21 15 500 5170 -44.3 -48.3 64 4.0 -44.5 10 40 279.0 279.0 270.7 279.3 0.10 16 462 5695 -48.5 -52.6 62 4.1 -48.6 8 41 280.2 280.2 271.4 280.4 0.06 17 400 6630 -54.7 -59.0 59 4.3 -54.8 5 44 283.9 283.9 273.5 284.0 0.03 18 348 7515 -59.9 -64.2 57 4.3 -59.9 355 35 288.4 288.4 275.9 288.5 0.02 19 300 8440 -63.1 -67.4 56 4.3 -63.1 345 25 296.4 296.4 279.7 296.4 0.01 20 282 8816 -64.5 -68.8 55 4.3 -64.6 340 29 299.7 299.7 281.2 299.7 0.01 21 250 9550 -62.7 -67.1 55 4.4 -62.7 330 25 312.9 312.9 286.4 312.9 0.02 22 215 10488 -60.3 -64.9 55 4.6 -60.4 327 25 330.4 330.4 291.9 330.5 0.03 23 200 10940 -60.7 -65.4 54 4.7 -60.7 325 25 336.6 336.6 293.5 336.8 0.03 24 150 12730 -60.1 -65.1 52 5.0 -60.2 305 21 366.5 366.5 299.9 366.7 0.04 25 128 13718 -59.1 -65.1 46 6.0 -59.2 297 23 385.3 385.4 303.1 385.6 0.05 26 100 15250 -61.9 -68.9 39 7.0 -62.0 285 27 408.1 408.1 306.3 408.3 0.04 27 70 17440 -65.1 -73.1 32 8.0 -65.3 245 25 445.1 445.1 310.4 445.3 0.03 28 50 19480 -66.7 -74.7 32 8.0 -66.9 250 33 486.3 486.3 314.0 486.5 0.03 29 44 20250 -68.3 -76.3 31 8.0 -68.5 500.5 500.5 315.0 500.7 0.03 30 42 20530 -67.1 -76.1 27 9.0 -67.3 510.2 510.2 315.7 510.4 0.03 TRP 282 8816 -64.5 -68.8 55 4.3 -64.6 340 29 299.7 299.7 281.2 299.7 0.01 WND Sounding variables and indices 1000-500 mb thick: 4916.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.07 inches Sfc-500 mean rel hum: 69.85 % Est. max temperature: -12.43 C = 9.62 F Sfc-Lift cond lev (LCL): 935.87 mb = 720.78 m = 2364.73 ft T: -25.28 C 700-500 lapse rate: 7.11 C/km ThetaE index: 0.00 C Layer 999.0-166057796923399653706080487429850005504.0 mb Conv cond level (CCL): 999.00 mb = 260.80 m = 855.62 ft Mean mixing ratio: 0.27 g/kg Conv temperature: -31.73 C = -25.12 F Cap Strength: 24.66 C Lifted Index: 25.35 C Risk: None Lifted Index @300 mb: 34.20 C Lifted Index @700 mb: 21.56 C Showalter Index: 14.04 C Risk: None Total Totals Index: 36.40 C Risk: None Vertical Totals Index: 20.00 C Cross Totals Index: 16.40 C K Index: -11.40 Risk: None Sweat Index: 78.00 Risk: None Energy Index: 3.73 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 97.46 J/kg Max Up Vert Vel: 13.96 m/s Conv Inhibition (B-): 44152.77 J/kg Cap Strength: 25.36 C Lift Cond Lev (LCL): 904.94 mb = 966.06 m = 3169.46 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 17 at 20 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 ---------------------------------------------------------- 0 999 261 190 1 0.2 1.0 | 196 21 6.0 20.5 1 925 806 280 19 18.7 -3.3 | 237 29 24.6 16.2 2 850 1423 295 19 17.2 -8.0 | 243 26 23.1 11.5 3 700 2834 330 21 10.5 -18.2 | 265 16 16.4 1.4 4 500 5170 10 40 -6.9 -39.4 | 3 20 -1.1 -19.8 5 400 6630 5 44 -3.8 -43.8 | 355 24 2.0 -24.3 6 300 8440 345 25 6.5 -24.1 | 290 13 12.3 -4.6 7 282 8816 340 29 9.9 -27.3 | 296 18 15.8 -7.7 8 250 9550 330 25 12.5 -21.7 | 277 18 18.4 -2.1 9 200 10940 325 25 14.3 -20.5 | 273 20 20.2 -0.9 10 150 12730 305 21 17.2 -12.0 | 252 24 23.1 7.5 11 100 15250 285 27 26.1 -7.0 | 249 34 31.9 12.6 12 70 17440 245 25 22.7 10.6 | 223 41 28.5 30.1 13 50 19480 250 33 31.0 11.3 | 230 48 36.9 30.8 Wind Parameters Mean winds (0-6000m): 346.7 at 27.2 knts Storm direction: 16.7 at 20.4 knts Shear (0-3000m) pos: 4.3 neg: 0.0 tot: 4.3 10-3/s Storm rel Dir Shear (0-3000m): 84.8 deg Storm rel helicity (0-3000m) pos: 242.3 neg: 0.0 tot: 242.3 m^2/s^2 ave: 80.8 10^-3 m/s^2 rel: 0.78 Storm rel vorticity (0-3000m) horiz: 7.9 stream: 6.2 10^-3/s Energy-Hel index: 0.13 Bulk Rich Number: 1.13 Bulk Shear: 86.08 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 ------------------------------------------------------------------------------- 500 277 9 219 24| 17.9 0.0 17.9|131.7 0.0 131.7 263.3 0.80| 22.4 17.9 1000 282 14 230 26| 9.9 0.0 9.9|172.0 0.0 172.0 172.0 0.81| 14.5 11.7 1500 288 16 235 25| 6.8 0.0 6.8|191.3 0.0 191.3 127.5 0.79| 11.1 8.8 2000 295 17 239 25| 5.3 0.0 5.3|208.4 0.0 208.4 104.2 0.78| 9.4 7.3 2500 301 17 243 23| 4.5 0.0 4.5|221.8 0.0 221.8 88.7 0.76| 8.5 6.4 3000 308 18 248 22| 4.3 0.0 4.3|242.3 0.0 242.3 80.8 0.78| 7.9 6.2 4000 322 21 260 19| 4.3 0.0 4.3|290.0 0.0 290.0 72.5 0.82| 7.5 6.1 5000 338 24 281 15| 4.2 0.0 4.2|342.9 -0.4 342.6 68.5 0.84| 7.3 6.1 6000 347 27 300 14| 3.5 0.3 3.9|342.9 -12.2 330.7 55.1 0.77| 6.4 4.9 Wrote GIF file: /home/apache/climate/data/raob//U4908/skewt/U4908.skewt.20251209.12.gif