UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120812.upa.cvt Date: 1200Z 8 DEC 25 Searching for U8951... Searching the city database file for: U8951 ... Date:1200Z 8 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 1004 161 -9.1 -11.3 84 2.2 -9.6 40 9 263.7 264.0 263.3 268.1 1.60 1 1002 177 -9.7 -9.7 100 0.0 -9.7 42 10 263.3 263.6 263.3 268.2 1.82 2 1000 192 -9.9 -9.9 100 0.0 -9.9 45 11 263.2 263.5 263.3 268.1 1.80 3 958 521 -12.5 39 12 263.9 4 946 618 -7.7 -7.7 100 0.0 -7.7 38 12 269.7 270.1 268.5 275.8 2.26 5 934 718 -7.5 -7.5 100 0.0 -7.5 36 13 270.9 271.3 269.4 277.2 2.32 6 925 793 -7.9 -7.9 100 0.0 -7.9 35 13 271.2 271.6 269.6 277.5 2.28 7 850 1445 -11.9 20 9 273.7 8 700 2906 -21.1 -21.1 100 0.0 -21.1 355 15 279.1 279.3 272.3 282.1 1.01 9 662 3317 -23.3 -23.9 95 0.6 -23.4 345 15 281.1 281.3 273.2 283.7 0.84 10 553 4607 -34.5 -35.8 88 1.3 -34.6 313 16 282.7 282.8 273.3 283.7 0.33 11 524 4984 -35.1 -45.1 35 10.0 -35.7 303 17 286.4 286.4 275.0 286.8 0.13 12 500 5310 -36.7 -50.7 22 14.0 -37.3 295 17 288.3 288.3 275.9 288.5 0.07 13 499 5324 -36.9 -50.9 22 14.0 -37.5 295 17 288.2 288.2 275.9 288.5 0.07 14 400 6820 -44.7 -61.7 13 17.0 -45.1 280 38 296.9 296.9 280.0 297.0 0.02 15 353 7650 -49.5 -66.5 12 17.0 -49.8 278 43 301.2 301.2 281.9 301.3 0.01 16 300 8710 -53.1 -70.1 11 17.0 -53.3 275 50 310.5 310.5 285.5 310.5 0.01 17 255 9745 -56.9 -72.9 12 16.0 -57.1 279 48 319.7 319.7 288.6 319.7 0.01 18 250 9870 -56.9 -72.9 12 16.0 -57.1 280 48 321.5 321.5 289.2 321.5 0.01 19 200 11160 -56.3 -74.3 9 18.0 -56.5 280 50 343.6 343.6 295.2 343.6 0.01 TRP WND Sounding variables and indices 1000-500 mb thick: 5118.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.26 inches Sfc-500 mean rel hum: 80.37 % Est. max temperature: 0.71 C = 33.27 F Sfc-Lift cond lev (LCL): 969.19 mb = 432.18 m = 1417.88 ft T: -11.80 C 700-500 lapse rate: 6.49 C/km ThetaE index: 0.11 C Layer 1000.0- 958.0 mb Conv cond level (CCL): 1002.00 mb = 176.58 m = 579.33 ft Mean mixing ratio: 2.11 g/kg Conv temperature: -7.68 C = 18.18 F Cap Strength: 11.49 C Lifted Index: 12.85 C Risk: None Lifted Index @300 mb: 26.63 C Lifted Index @700 mb: 7.06 C Showalter Index: 8.22 C Risk: None Total Totals Index: 49.60 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 24.80 C Cross Totals Index: 24.80 C K Index: 12.90 Risk: None Sweat Index: 46.91 Risk: None Energy Index: 2.03 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 52.36 J/kg Max Up Vert Vel: 10.23 m/s Conv Inhibition (B-): 0.00 J/kg Cap Strength: 12.86 C Lift Cond Lev (LCL): 970.09 mb = 425.06 m = 1394.52 ft Lev Free Conv (LFC): 965.09 mb = 464.71 m = 1524.62 ft Equ Level (EL): 945.09 mb = 625.91 m = 2053.50 ft B at Equ Level: 48.43 J/kg Max Parcel Lev (MPL): 895.09 mb = 1046.48 m = 3433.30 ft Wind level data Storm motion: 4 at 11 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 1004 161 40 9 -5.8 -6.9 | 131 7 -5.0 4.4 1 1000 192 45 11 -7.8 -7.8 | 117 8 -7.0 3.5 2 925 793 35 13 -7.5 -10.6 | 96 7 -6.7 0.7 3 850 1445 20 9 -3.1 -8.5 | 141 4 -2.3 2.9 4 700 2906 355 15 1.3 -14.9 | 330 4 2.1 -3.6 5 500 5310 295 17 15.4 -7.2 | 256 17 16.2 4.1 6 400 6820 280 38 37.4 -6.6 | 263 38 38.2 4.7 7 300 8710 275 50 49.8 -4.4 | 262 51 50.6 7.0 8 250 9870 280 48 47.3 -8.3 | 266 48 48.0 3.0 9 200 11160 280 50 49.2 -8.7 | 267 50 50.0 2.6 Wind Parameters Mean winds (0-6000m): 333.9 at 15.1 knts Storm direction: 3.9 at 11.4 knts Shear (0-3000m) pos: 0.0 neg: 2.0 tot: 2.0 10-3/s Storm rel Dir Shear (0-3000m): -177.9 deg Storm rel helicity (0-3000m) pos: 3.9 neg: -12.3 tot: -8.4 m^2/s^2 ave: -2.8 10^-3 m/s^2 rel: -0.37 Storm rel vorticity (0-3000m) horiz: 3.3 stream: -1.2 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 1.74 Bulk Shear: 30.08 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 41 12 110 7| 0.0 3.7 3.7| 0.0 -7.3 -7.3 -14.7 -0.91| 4.4 -4.0 1000 37 12 106 7| 0.0 1.5 1.5| 2.0 -8.2 -6.2 -6.2 -0.38| 3.9 -1.5 1500 33 11 110 6| 0.0 1.4 1.4| 3.9 -8.6 -4.6 -3.1 -0.14| 3.7 -0.5 2000 27 11 109 5| 0.0 1.7 1.7| 3.9 -9.3 -5.4 -2.7 -0.25| 3.4 -0.8 2500 21 11 101 3| 0.0 1.9 1.9| 3.9 -10.1 -6.2 -2.5 -0.33| 3.3 -1.1 3000 15 12 84 2| 0.0 2.0 2.0| 3.9 -12.3 -8.4 -2.8 -0.37| 3.3 -1.2 4000 3 13 0 2| 0.0 2.1 2.1| 3.9 -21.3 -17.4 -4.4 -0.45| 3.4 -1.5 5000 350 14 305 4| 0.0 2.1 2.1| 3.9 -37.7 -33.8 -6.8 -0.49| 3.4 -1.7 6000 334 15 287 8| 0.0 2.9 2.9| 18.7 -39.9 -21.2 -3.5 -0.30| 4.0 -1.2 Wrote GIF file: /home/apache/climate/data/raob//U8951/skewt/U8951.skewt.20251208.12.gif