UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122300.upa.cvt Date: 0000Z 23 DEC 25 Searching for X0935... Searching the city database file for: X0935 ... Date:0000Z 23 DEC 25 Station: X0935 WMO ident: 30935 Latitude: 50.37 Longitude: 108.75 ------------------------------------------------------------------------------- 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 237 SFC 929 770 -28.9 -32.3 72 3.4 -29.2 0 0 249.4 249.5 248.8 250.2 0.27 2 925 801 -27.9 -31.0 75 3.1 -28.2 355 1 250.8 250.8 250.1 251.6 0.31 3 875 1208 -18.3 -20.5 83 2.2 -18.7 289 12 264.8 264.9 262.6 267.2 0.85 4 853 1398 -17.9 -19.8 85 1.9 -18.2 259 16 267.1 267.3 264.4 269.7 0.93 5 850 1424 -17.9 -19.8 85 1.9 -18.3 255 17 267.4 267.5 264.6 270.0 0.93 6 807 1811 -18.5 -21.5 77 3.0 -19.0 264 19 270.8 270.9 266.8 273.2 0.85 7 727 2581 -24.1 -31.1 52 7.0 -24.9 283 23 272.8 272.9 267.4 274.0 0.39 8 700 2856 -26.3 -33.3 52 7.0 -27.0 290 25 273.4 273.4 267.6 274.4 0.33 9 548 4586 -36.7 -41.7 60 5.0 -37.0 308 48 280.8 280.9 272.0 281.4 0.18 10 512 5056 -36.5 -40.5 66 4.0 -36.8 313 54 286.6 286.6 275.2 287.3 0.22 11 500 5220 -37.9 -42.0 65 4.1 -38.1 315 56 286.8 286.9 275.3 287.5 0.19 12 400 6720 -49.1 -53.4 61 4.3 -49.2 305 60 291.2 291.2 277.3 291.4 0.07 13 344 7697 -56.1 -60.2 60 4.1 -56.2 300 69 294.5 294.5 278.9 294.6 0.03 14 316 8238 -55.7 -60.0 59 4.3 -55.8 300 83 302.3 302.3 282.4 302.4 0.04 15 300 8570 -55.5 -59.9 58 4.4 -55.6 300 81 307.1 307.1 284.3 307.3 0.04 16 250 9730 -54.9 -59.9 54 5.0 -55.0 300 73 324.4 324.5 290.2 324.6 0.05 17 200 11160 -54.3 -62.3 37 8.0 -54.5 300 58 346.8 346.8 296.0 347.0 0.04 18 199 11192 -54.1 -62.1 37 8.0 -54.3 300 58 347.6 347.6 296.1 347.8 0.05 19 188 11556 -57.1 -66.1 31 9.0 -57.3 298 60 348.5 348.5 296.3 348.6 0.03 20 150 12990 -56.5 -67.5 24 11.0 -56.8 290 69 372.7 372.7 301.1 372.9 0.03 21 142 13337 -57.1 -69.1 20 12.0 -57.3 377.6 377.6 301.9 377.7 0.02 22 134 13706 -54.7 -67.7 19 13.0 -55.1 388.2 388.2 303.5 388.3 0.03 TRP 344 7697 -56.1 -60.2 60 4.1 -56.2 300 69 294.5 294.5 278.9 294.6 0.03 WND 316 8238 -55.7 -60.0 59 4.3 -55.8 300 83 302.3 302.3 282.4 302.4 0.04 Sounding variables and indices 1000-500 mb thick: 4983.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.09 inches Sfc-500 mean rel hum: 63.87 % Est. max temperature: -7.34 C = 18.79 F Sfc-Lift cond lev (LCL): 877.14 mb = 1189.78 m = 3903.42 ft T: -18.72 C 700-500 lapse rate: 4.91 C/km ThetaE index: 0.00 C Layer 929.0- 0.0 mb Conv cond level (CCL): 929.00 mb = 769.74 m = 2525.35 ft Mean mixing ratio: 0.72 g/kg Conv temperature: -21.71 C = -7.08 F Cap Strength: 18.85 C Lifted Index: 18.92 C Risk: None Lifted Index @300 mb: 30.61 C Lifted Index @700 mb: 9.25 C Showalter Index: 13.94 C Risk: None Total Totals Index: 38.10 C Risk: None Vertical Totals Index: 20.00 C Cross Totals Index: 18.10 C K Index: -6.80 Risk: None Sweat Index: 90.00 Risk: None Energy Index: 3.61 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 79.00 J/kg Max Up Vert Vel: 12.57 m/s Conv Inhibition (B-): 16427.29 J/kg Cap Strength: 18.86 C Lift Cond Lev (LCL): 856.04 mb = 1371.13 m = 4498.39 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 334 at 28 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 ---------------------------------------------------------- 0 929 770 0 0 -0.0 -0.0 | 154 28 -12.5 25.2 1 925 801 355 1 0.1 -1.0 | 153 27 -12.4 24.2 2 850 1424 255 17 16.4 4.4 | 188 30 3.9 29.6 3 700 2856 290 25 23.5 -8.6 | 213 20 11.0 16.6 4 500 5220 315 56 39.6 -39.6 | 298 31 27.1 -14.4 5 400 6720 305 60 49.1 -34.4 | 284 38 36.6 -9.3 6 344 7697 300 69 59.8 -34.5 | 281 48 47.2 -9.3 7 316 8238 300 83 71.9 -41.5 | 285 62 59.4 -16.3 8 300 8570 300 81 70.1 -40.5 | 285 60 57.6 -15.3 9 250 9730 300 73 63.2 -36.5 | 283 52 50.7 -11.3 10 200 11160 300 58 50.2 -29.0 | 276 38 37.7 -3.8 11 150 12990 290 69 64.8 -23.6 | 268 52 52.3 1.6 Wind Parameters Mean winds (0-6000m): 303.5 at 37.5 knts Storm direction: 333.5 at 28.1 knts Shear (0-3000m) pos: 4.2 neg: 3.2 tot: 7.4 10-3/s Storm rel Dir Shear (0-3000m): 97.2 deg Storm rel helicity (0-3000m) pos: 226.5 neg: -3.7 tot: 222.8 m^2/s^2 ave: 74.3 10^-3 m/s^2 rel: 0.73 Storm rel vorticity (0-3000m) horiz: 8.9 stream: 6.4 10^-3/s Energy-Hel index: 0.08 Bulk Rich Number: 0.61 Bulk Shear: 129.75 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 ------------------------------------------------------------------------------- 500 284 7 165 24| 0.0 13.4 13.4| 61.7 -3.7 58.0 116.0 0.62| 16.9 10.5 1000 259 12 178 27| 0.0 9.7 9.7|102.7 -3.7 98.9 98.9 0.60| 13.8 8.2 1500 265 15 184 27| 1.8 6.5 8.3|130.4 -3.7 126.7 84.5 0.62| 11.0 6.8 2000 272 17 190 25| 2.8 4.9 7.6|154.2 -3.7 150.5 75.2 0.63| 9.7 6.1 2500 278 19 195 23| 3.5 3.9 7.4|188.3 -3.7 184.6 73.8 0.68| 9.1 6.3 3000 283 21 202 22| 4.2 3.2 7.4|226.5 -3.7 222.8 74.3 0.73| 8.9 6.4 4000 294 27 220 19| 5.1 2.4 7.5|313.8 -3.7 310.1 77.5 0.77| 8.6 6.6 5000 302 33 243 17| 4.8 2.3 7.1|358.7 -26.9 331.8 66.4 0.70| 8.0 5.6 6000 304 37 257 19| 4.0 2.5 6.5|358.7 -77.1 281.6 46.9 0.58| 7.3 4.3 Wrote GIF file: /home/apache/climate/data/raob//X0935/skewt/X0935.skewt.20251223.00.gif