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 U8951... Searching the city database file for: U8951 ... Date:0000Z 9 DEC 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 ------------------------------------------------------------------------------- SFC 1014 -70 16.0 13.1 83 2.9 14.3 20 11 288.0 289.6 286.8 314.2 9.38 1 500 5350 -38.9 -40.4 86 1.5 -39.0 50 21 285.6 285.6 274.8 286.3 0.23 2 411 6654 -50.3 -53.8 66 3.5 -50.4 28 19 287.4 287.4 275.4 287.6 0.06 3 400 6830 -50.7 -55.7 55 5.0 -50.8 25 19 289.1 289.1 276.3 289.3 0.05 4 317 8328 -55.5 -65.5 28 10.0 -55.6 340 23 302.3 302.3 282.3 302.4 0.02 5 300 8680 -54.7 -64.7 28 10.0 -54.8 335 25 308.2 308.2 284.7 308.3 0.02 6 250 9850 -54.9 -69.9 14 15.0 -55.1 320 33 324.4 324.4 290.1 324.5 0.01 7 205 11113 -55.7 -75.7 7 20.0 -55.9 311 36 342.1 342.1 294.8 342.2 0.01 8 200 11270 -56.9 -77.9 5 21.0 -57.1 310 36 342.7 342.7 295.0 342.7 0.00 9 150 13070 -61.5 -89.5 1 28.0 -61.7 295 38 364.1 364.1 299.5 364.1 0.00 10 127 14098 -64.3 -93.3 1 29.0 -64.4 295 39 376.8 376.8 301.7 376.8 0.00 11 100 15560 -65.3 -93.3 1 28.0 -65.4 295 40 401.6 401.6 305.4 401.6 0.00 12 70 17730 -67.5 -95.5 1 28.0 -67.7 285 52 440.0 440.0 309.8 440.0 0.00 13 50 19740 -69.7 -96.7 1 27.0 -69.9 280 52 479.2 479.2 313.4 479.2 0.00 14 34 21975 -71.5 -97.8 1 26.2 -71.7 275 71 530.4 530.4 316.9 530.4 0.00 15 30 22700 -72.1 -98.1 1 26.0 -72.3 280 69 548.1 548.1 318.0 548.1 0.00 TRP 317 8328 -55.5 -65.5 28 10.0 -55.6 340 23 302.3 302.3 282.3 302.4 0.02 WND 34 21975 -71.5 -97.8 1 26.2 -71.7 275 71 530.4 530.4 316.9 530.4 0.00 Sounding variables and indices 1000-500 mb thick: 5313.26 m Freezing level: 864.20 mb = 1509.72 m = 4953.09 ft Wetbulb zero: 876.40 mb = 1048.03 m = 3438.38 ft Precipitable water: 0.98 inches Sfc-500 mean rel hum: 84.27 % Est. max temperature: 16.53 C = 61.76 F Sfc-Lift cond lev (LCL): 971.12 mb = 261.40 m = 857.61 ft T: 12.64 C 700-500 lapse rate: 10.13 C/km Conv cond level (CCL): 500.00 mb = 5350.00 m = 17552.28 ft Mean mixing ratio: 14.34 g/kg Conv temperature: 71.92 C = 161.46 F Cap Strength: -1.72 C Lifted Index: -25.27 C Risk: Severe thunderstorms probable Lifted Index @300 mb: -11.24 C Lifted Index @700 mb: -15.25 C Showalter Index: -10.79 C Risk: Severe thunderstorms probable Total Totals Index: 79.85 C Risk: Severe Thunderstorms probable Vertical Totals Index: 41.20 C Cross Totals Index: 38.65 C K Index: 38.79 Risk: > 80 % chance of thunderstorms Sweat Index: 665.04 Risk: Severe Thunderstorms possible Energy Index: -2.91 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 158796.97 J/kg Max Up Vert Vel: 563.55 m/s Conv Inhibition (B-): 242.00 J/kg Cap Strength: 2.39 C Lift Cond Lev (LCL): 1110.63 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: 76 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 1014 -70 20 11 -3.8 -10.3 | 296 14 12.6 -6.1 1 1000 275 40 25 -16.1 -19.2 | 359 15 0.3 -14.9 2 925 857 45 25 -17.7 -17.7 | 6 14 -1.3 -13.4 3 850 1499 35 23 -13.2 -18.8 | 348 15 3.2 -14.6 4 700 2953 50 23 -17.6 -14.8 | 7 11 -1.3 -10.6 5 500 5350 50 21 -16.1 -13.5 | 358 9 0.3 -9.3 6 400 6830 25 19 -8.0 -17.2 | 327 15 8.3 -13.0 7 317 8328 340 23 7.9 -21.6 | 306 30 24.2 -17.4 8 300 8680 335 25 10.6 -22.7 | 304 33 26.9 -18.4 9 250 9850 320 33 21.2 -25.3 | 299 43 37.6 -21.0 10 200 11270 310 36 27.6 -23.1 | 293 48 43.9 -18.9 11 150 13070 295 38 34.4 -16.1 | 283 52 50.8 -11.8 12 100 15560 295 40 36.3 -16.9 | 284 54 52.6 -12.7 13 70 17730 285 52 50.2 -13.5 | 278 67 66.6 -9.2 14 50 19740 280 52 51.2 -9.0 | 274 68 67.6 -4.8 15 34 21975 275 71 70.7 -6.2 | 271 87 87.1 -2.0 16 30 22700 280 69 68.0 -12.0 | 275 85 84.3 -7.8 Wind Parameters Mean winds (0-6000m): 45.5 at 22.5 knts Storm direction: 75.5 at 16.9 knts Shear (0-3000m) pos: 3.0 neg: 0.6 tot: 3.6 10-3/s Storm rel Dir Shear (0-3000m): 70.5 deg Storm rel helicity (0-3000m) pos: 74.8 neg: -15.9 tot: 58.9 m^2/s^2 ave: 19.6 10^-3 m/s^2 rel: 0.60 Storm rel vorticity (0-3000m) horiz: 4.7 stream: 2.9 10^-3/s Energy-Hel index: 64.97 Bulk Rich Number: 155548.86 Bulk Shear: 1.02 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 38 22 349 13| 15.7 0.0 15.7| 56.9 0.0 56.9 113.9 0.99| 16.4 16.2 1000 42 24 359 14| 7.9 0.0 7.9| 61.2 -1.6 59.6 59.6 0.92| 9.2 8.4 1500 41 24 358 14| 5.3 1.2 6.5| 61.2 -14.5 46.7 31.1 0.60| 7.4 4.4 2000 40 24 356 14| 4.1 0.9 5.0| 65.5 -15.9 49.5 24.8 0.58| 6.0 3.5 2500 40 24 356 14| 3.4 0.7 4.2| 70.3 -15.9 54.4 21.8 0.59| 5.3 3.1 3000 42 23 357 13| 3.0 0.6 3.6| 74.8 -15.9 58.9 19.6 0.60| 4.7 2.9 4000 44 23 359 13| 2.2 0.5 2.7| 74.9 -17.4 57.5 14.4 0.57| 3.7 2.1 5000 45 23 359 12| 1.8 0.5 2.2| 74.9 -19.0 55.9 11.2 0.53| 3.0 1.6 6000 46 23 359 12| 1.5 0.7 2.2| 74.9 -27.1 47.8 8.0 0.38| 2.9 1.1 Wrote GIF file: /home/apache/climate/data/raob//U8951/skewt/U8951.skewt.20251209.00.gif