UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025121812.upa.cvt Date: 1200Z 18 DEC 25 Searching for X0557... Searching the city database file for: X0557 ... Date:1200Z 18 DEC 25 Station: X0557 WMO ident: 30557 ------------------------------------------------------------------------------- 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 120 1 925 702 SFC 901 897 -21.3 -25.4 69 4.1 -21.8 0 0 259.5 259.6 257.9 261.0 0.54 3 884 1037 -21.9 -26.3 67 4.4 -22.4 18 2 260.3 260.3 258.4 261.7 0.50 4 871 1148 -17.5 -21.9 68 4.4 -18.2 32 4 266.0 266.1 263.3 268.1 0.76 5 850 1331 -17.3 -20.5 76 3.2 -17.9 55 7 268.0 268.2 265.0 270.5 0.88 6 831 1500 -17.1 -20.1 77 3.0 -17.6 59 8 270.0 270.1 266.4 272.6 0.93 7 827 1537 -17.3 -20.4 77 3.1 -17.9 60 8 270.1 270.3 266.5 272.7 0.91 8 796 1823 -16.9 -20.0 77 3.1 -17.5 67 9 273.5 273.7 268.9 276.4 0.98 9 710 2677 -19.5 -23.2 72 3.7 -20.1 87 13 279.8 279.9 272.5 282.2 0.83 10 700 2782 -20.1 -23.8 72 3.7 -20.7 90 13 280.2 280.4 272.6 282.6 0.80 11 552 4506 -30.7 -34.2 71 3.5 -31.0 171 13 287.4 287.4 275.9 288.6 0.38 12 500 5200 -36.3 -40.1 68 3.8 -36.5 205 13 288.8 288.8 276.4 289.5 0.23 13 400 6700 -47.9 -52.0 63 4.1 -48.0 205 11 292.7 292.7 278.2 293.0 0.08 14 348 7609 -55.3 -59.3 61 4.0 -55.4 212 24 294.6 294.6 279.0 294.8 0.04 15 300 8550 -59.9 -64.0 59 4.1 -59.9 220 38 300.9 300.9 281.7 301.0 0.02 16 257 9510 -63.7 -67.9 56 4.2 -63.7 240 42 308.9 308.9 284.9 309.0 0.02 17 250 9680 -63.3 -67.6 56 4.3 -63.3 240 44 312.0 312.0 286.1 312.0 0.02 18 200 11070 -56.7 -61.1 57 4.4 -56.8 255 40 343.0 343.0 295.1 343.2 0.05 19 196 11198 -55.9 -60.2 58 4.3 -56.0 254 40 346.2 346.3 295.8 346.5 0.06 20 150 12890 -56.9 -62.9 47 6.0 -57.1 245 33 372.0 372.1 300.9 372.3 0.05 21 100 15470 -57.1 -65.1 36 8.0 -57.4 270 36 417.4 417.4 307.4 417.7 0.06 22 70 17740 -55.7 -65.7 28 10.0 -56.2 270 36 465.2 465.2 312.3 465.7 0.08 23 63 18409 -56.3 -67.3 24 11.0 -56.8 267 37 478.1 478.2 313.3 478.6 0.07 24 51 19762 -52.5 -64.5 22 12.0 -53.5 261 38 516.8 516.9 316.1 517.6 0.13 25 50 19890 -52.1 -64.1 22 12.0 -53.2 260 38 520.7 520.7 316.4 521.6 0.14 26 36 22016 -52.5 -66.5 17 14.0 -53.9 257 46 571.0 571.0 319.3 571.9 0.14 27 30 23200 -50.7 -66.7 13 16.0 -52.8 255 50 606.4 606.5 320.9 607.6 0.16 28 26 24141 -47.3 -64.3 13 17.0 -50.4 248 46 641.4 641.5 322.4 643.5 0.26 29 21 25549 -49.5 -67.5 10 18.0 -52.7 237 39 675.2 675.3 323.7 676.9 0.21 30 20 25870 -47.7 -65.7 11 18.0 -51.4 235 38 690.2 690.3 324.2 692.6 0.28 31 15 27769 -47.9 -67.9 8 20.0 -52.5 748.7 748.8 326.0 751.3 0.27 32 14 28231 -41.1 -62.1 9 21.0 -48.4 786.7 787.0 327.1 793.0 0.64 33 12 29274 -43.3 -64.3 8 21.0 -50.3 814.3 814.6 327.7 820.0 0.56 TRP 257 9510 -63.7 -67.9 56 4.2 -63.7 240 42 308.9 308.9 284.9 309.0 0.02 WND Sounding variables and indices 1000-500 mb thick: 5080.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.13 inches Sfc-500 mean rel hum: 72.36 % Est. max temperature: -4.59 C = 23.73 F Sfc-Lift cond lev (LCL): 841.84 mb = 1403.27 m = 4603.83 ft T: -17.21 C 700-500 lapse rate: 6.70 C/km ThetaE index: 0.00 C Layer 901.0- -0.0 mb Conv cond level (CCL): 901.00 mb = 896.54 m = 2941.37 ft Mean mixing ratio: 0.80 g/kg Conv temperature: -20.91 C = -5.64 F Cap Strength: 15.45 C Lifted Index: 16.06 C Risk: None Lifted Index @300 mb: 22.35 C Lifted Index @700 mb: 10.88 C Showalter Index: 15.18 C Risk: None Total Totals Index: 34.80 C Risk: None Vertical Totals Index: 19.00 C Cross Totals Index: 15.80 C K Index: -5.20 Risk: None Sweat Index: 27.00 Risk: None Energy Index: 4.08 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 55.56 J/kg Max Up Vert Vel: 10.54 m/s Conv Inhibition (B-): 70635.08 J/kg Cap Strength: 16.04 C Lift Cond Lev (LCL): 803.92 mb = 1748.87 m = 5737.69 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 185 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 ---------------------------------------------------------- 0 901 897 0 0 -0.0 -0.0 | 5 9 -0.7 -8.5 1 850 1331 55 7 -5.7 -4.0 | 27 14 -6.5 -12.5 2 700 2782 90 13 -13.0 0.0 | 58 16 -13.7 -8.5 3 500 5200 205 13 5.5 11.8 | 235 6 4.8 3.3 4 400 6700 205 11 4.6 10.0 | 249 4 3.9 1.5 5 300 8550 220 38 24.4 29.1 | 229 31 23.7 20.6 6 257 9510 240 42 36.4 21.0 | 251 38 35.6 12.5 7 250 9680 240 44 38.1 22.0 | 250 40 37.4 13.5 8 200 11070 255 40 38.6 10.4 | 267 38 37.9 1.9 9 150 12890 245 33 29.9 13.9 | 259 30 29.2 5.5 10 100 15470 270 36 36.0 -0.0 | 284 36 35.3 -8.5 11 70 17740 270 36 36.0 -0.0 | 284 36 35.3 -8.5 12 50 19890 260 38 37.4 6.6 | 273 37 36.7 -1.9 13 30 23200 255 50 48.3 12.9 | 265 48 47.6 4.5 14 20 25870 235 38 31.1 21.8 | 246 33 30.4 13.3 Wind Parameters Mean winds (0-6000m): 154.9 at 11.4 knts Storm direction: 184.9 at 8.5 knts Shear (0-3000m) pos: 2.2 neg: 0.0 tot: 2.2 10-3/s Storm rel Dir Shear (0-3000m): 97.6 deg Storm rel helicity (0-3000m) pos: 81.4 neg: 0.0 tot: 81.4 m^2/s^2 ave: 27.1 10^-3 m/s^2 rel: 0.79 Storm rel vorticity (0-3000m) horiz: 4.9 stream: 3.9 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 2.63 Bulk Shear: 21.13 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 55 4 20 11| 7.5 0.0 7.5| 17.2 0.0 17.2 34.3 0.62| 8.5 5.3 1000 61 6 28 13| 4.8 0.0 4.8| 27.0 0.0 27.0 27.0 0.70| 5.6 4.0 1500 69 8 35 14| 3.9 0.0 3.9| 39.1 0.0 39.1 26.1 0.76| 4.8 3.6 2000 77 9 41 14| 3.3 0.0 3.3| 54.1 0.0 54.1 27.1 0.80| 4.6 3.6 2500 85 10 47 14| 2.7 0.0 2.7| 70.0 0.0 70.0 28.0 0.80| 4.8 3.8 3000 94 10 54 13| 2.2 0.0 2.2| 81.4 0.0 81.4 27.1 0.79| 4.9 3.9 4000 111 11 67 12| 1.7 0.0 1.7| 96.0 0.0 96.0 24.0 0.82| 5.1 4.1 5000 133 11 85 9| 1.3 0.1 1.4|100.8 0.0 100.8 20.2 0.82| 4.5 3.7 6000 155 11 108 6| 1.3 0.1 1.4|101.7 -1.9 99.8 16.6 0.74| 4.1 3.0 Wrote GIF file: /home/apache/climate/data/raob//X0557/skewt/X0557.skewt.20251218.12.gif