UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2026011300.upa.cvt Date: 0000Z 13 JAN 26 Searching for X4172... Searching the city database file for: X4172 ... Date:0000Z 13 JAN 26 Station: X4172 WMO ident: 34172 Latitude: 51.57 Longitude: 46.03 ------------------------------------------------------------------------------- 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 137 100 7 SFC 996 168 -6.3 -8.9 82 2.6 -7.1 100 7 267.2 267.5 266.3 272.5 1.95 2 961 447 -8.7 -11.2 82 2.5 -9.4 112 13 267.5 267.8 266.1 272.1 1.69 3 930 705 -1.1 -2.7 89 1.6 -1.7 123 18 277.8 278.3 275.1 287.1 3.37 4 925 748 -1.1 -2.7 89 1.6 -1.7 125 19 278.2 278.8 275.4 287.6 3.38 5 862 1312 -0.3 -2.3 86 2.0 -1.2 163 16 284.7 285.3 279.2 295.3 3.74 6 850 1424 -1.1 -3.7 82 2.6 -2.1 170 15 285.0 285.6 279.0 294.8 3.42 7 765 2255 -6.7 -8.7 86 2.0 -7.4 170 19 287.7 288.1 279.2 295.2 2.59 8 725 2672 -8.7 -15.7 57 7.0 -10.7 170 22 289.9 290.2 278.9 294.6 1.55 9 700 2944 -9.3 -14.3 67 5.0 -10.8 170 23 292.2 292.5 280.3 297.6 1.80 10 695 3000 -9.3 -13.9 69 4.6 -10.7 171 23 292.8 293.1 280.7 298.5 1.88 11 673 3248 -10.9 -13.8 79 2.9 -11.8 173 23 293.7 294.0 281.2 299.6 1.95 12 500 5460 -27.9 -30.6 78 2.7 -28.3 195 27 299.0 299.1 281.7 301.0 0.60 13 479 5765 -30.5 -33.4 76 2.9 -30.9 194 28 299.5 299.6 281.8 301.1 0.48 14 400 7010 -41.9 -44.9 72 3.0 -42.1 190 31 300.5 300.6 281.8 301.1 0.17 15 343 8033 -50.7 -54.1 67 3.4 -50.8 187 40 302.1 302.1 282.3 302.4 0.07 16 300 8890 -59.7 -63.3 63 3.6 -59.7 185 48 301.2 301.2 281.9 301.3 0.03 17 257 9835 -68.7 -72.4 59 3.7 -68.7 175 58 301.5 301.5 282.0 301.6 0.01 18 250 10000 -68.1 -71.8 59 3.7 -68.1 180 60 304.8 304.8 283.3 304.9 0.01 19 200 11360 -63.3 -67.1 60 3.8 -63.3 220 36 332.5 332.5 292.4 332.6 0.02 20 154 12968 -61.9 -65.6 61 3.7 -62.0 220 31 360.7 360.7 298.9 360.9 0.04 21 150 13130 -63.7 -67.8 57 4.1 -63.7 220 31 360.3 360.4 298.8 360.5 0.03 22 100 15610 -63.3 -67.8 54 4.5 -63.4 235 42 405.4 405.4 305.9 405.6 0.04 23 82 16824 -62.3 -67.0 53 4.7 -62.4 241 48 431.1 431.2 309.0 431.4 0.06 24 70 17790 -64.5 -69.1 53 4.6 -64.6 245 52 446.4 446.4 310.6 446.7 0.05 25 50 19840 -67.5 -72.5 49 5.0 -67.6 245 69 484.4 484.4 313.8 484.7 0.04 26 43 20746 -68.7 -73.7 48 5.0 -68.8 502.8 502.8 315.2 503.1 0.04 TRP 257 9835 -68.7 -72.4 59 3.7 -68.7 175 58 301.5 301.5 282.0 301.6 0.01 WND 250 10000 -68.1 -71.8 59 3.7 -68.1 180 60 304.8 304.8 283.3 304.9 0.01 Sounding variables and indices 1000-500 mb thick: 5323.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.45 inches Sfc-500 mean rel hum: 79.23 % Est. max temperature: 11.64 C = 52.95 F Sfc-Lift cond lev (LCL): 955.63 mb = 491.10 m = 1611.19 ft T: -7.40 C 700-500 lapse rate: 7.39 C/km ThetaE index: 0.62 C Layer 725.0- 700.0 mb Conv cond level (CCL): 996.00 mb = 168.37 m = 552.38 ft Mean mixing ratio: 2.61 g/kg Conv temperature: -5.16 C = 22.71 F Cap Strength: 13.92 C Lifted Index: 15.73 C Risk: None Lifted Index @300 mb: 14.75 C Lifted Index @700 mb: 13.06 C Showalter Index: 4.78 C Risk: None Total Totals Index: 51.00 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 26.80 C Cross Totals Index: 24.20 C K Index: 18.10 Risk: < 20 % chance of thunderstorms Sweat Index: 97.00 Risk: None Energy Index: 1.29 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 66.00 J/kg Max Up Vert Vel: 11.49 m/s Conv Inhibition (B-): 30156.82 J/kg Cap Strength: 15.69 C Lift Cond Lev (LCL): 922.43 mb = 770.28 m = 2527.13 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 206 at 16 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 ---------------------------------------------------------- 0 996 168 100 7 -6.9 1.2 | 46 20 -14.1 -13.5 1 925 748 125 19 -15.6 10.9 | 80 23 -22.8 -3.8 2 850 1424 170 15 -2.6 14.8 | 90 10 -9.8 0.0 3 700 2944 170 23 -4.0 22.7 | 125 14 -11.2 7.9 4 500 5460 195 27 7.0 26.1 | 179 11 -0.2 11.3 5 400 7010 190 31 5.4 30.5 | 173 16 -1.8 15.8 6 300 8890 185 48 4.2 47.8 | 175 33 -3.0 33.1 7 257 9835 175 58 -5.1 57.8 | 164 45 -12.3 43.0 8 250 10000 180 60 0.0 60.0 | 171 46 -7.2 45.3 9 200 11360 220 36 23.1 27.6 | 231 20 15.9 12.8 10 150 13130 220 31 19.9 23.7 | 235 16 12.7 9.0 11 100 15610 235 42 34.4 24.1 | 251 29 27.2 9.4 12 70 17790 245 52 47.1 22.0 | 260 41 39.9 7.2 13 50 19840 245 69 62.5 29.2 | 255 57 55.3 14.4 Wind Parameters Mean winds (0-6000m): 176.1 at 21.9 knts Storm direction: 206.1 at 16.4 knts Shear (0-3000m) pos: 3.0 neg: 0.9 tot: 3.9 10-3/s Storm rel Dir Shear (0-3000m): 82.8 deg Storm rel helicity (0-3000m) pos: 113.6 neg: -0.0 tot: 113.5 m^2/s^2 ave: 37.8 10^-3 m/s^2 rel: 0.67 Storm rel vorticity (0-3000m) horiz: 6.1 stream: 4.1 10^-3/s Energy-Hel index: 0.04 Bulk Rich Number: 1.42 Bulk Shear: 46.63 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 ------------------------------------------------------------------------------- 500 117 12 63 20| 11.5 0.0 11.5| 61.3 0.0 61.3 122.6 0.96| 11.7 11.2 1000 128 15 74 20| 6.9 0.0 6.9| 89.3 0.0 89.3 89.3 0.73| 11.4 8.2 1500 140 15 80 17| 5.3 0.0 5.3| 93.2 -0.0 93.2 62.1 0.62| 9.6 6.0 2000 148 16 85 16| 4.0 0.7 4.6| 99.9 -0.0 99.9 49.9 0.65| 7.9 5.1 2500 154 17 91 14| 3.2 1.1 4.2|106.6 -0.0 106.6 42.7 0.66| 6.8 4.5 3000 158 18 97 14| 3.0 0.9 3.9|113.6 -0.0 113.5 37.8 0.67| 6.1 4.1 4000 164 19 107 13| 2.6 0.7 3.3|127.7 -0.0 127.7 31.9 0.70| 5.2 3.6 5000 171 21 118 12| 2.4 0.5 3.0|142.1 -0.0 142.1 28.4 0.73| 4.6 3.4 6000 176 22 129 11| 2.1 0.6 2.7|146.3 -1.8 144.5 24.1 0.70| 4.1 2.9 Wrote GIF file: /home/apache/climate/data/raob//X4172/skewt/X4172.skewt.20260113.00.gif