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 UIBB... Searching the city database file for: UIBB ... Date:0000Z 9 DEC 25 Station: UIBB WMO ident: 30309 Latitude: 56.07 Longitude: 101.83 Elevation: 489.00 ------------------------------------------------------------------------------- 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 267 SFC 979 489 -30.5 -33.7 73 3.2 -30.7 330 1 244.1 244.2 243.8 244.7 0.23 2 975 513 -29.3 -33.0 70 3.7 -29.5 329 2 245.6 245.7 245.3 246.3 0.24 3 942 716 -30.7 -34.0 73 3.3 -30.9 325 6 246.6 246.7 246.2 247.3 0.23 4 925 823 -30.3 -33.5 74 3.2 -30.5 322 9 248.3 248.4 247.7 249.0 0.24 5 874 1230 -25.9 -28.8 77 2.9 -26.2 314 17 257.0 257.0 255.5 258.1 0.41 6 850 1431 -26.1 -28.9 77 2.8 -26.4 310 21 258.8 258.9 257.1 260.0 0.41 7 834 1568 -26.5 -29.3 77 2.8 -26.8 310 22 259.8 259.9 257.8 260.9 0.41 8 800 1869 -25.7 -28.6 77 2.9 -26.0 310 25 263.8 263.8 261.0 265.1 0.45 9 720 2629 -28.3 -32.3 68 4.0 -28.7 310 31 269.0 269.0 264.6 270.0 0.35 10 700 2830 -29.7 -33.8 67 4.1 -30.0 310 33 269.6 269.6 265.0 270.5 0.31 11 500 5160 -43.3 -49.3 52 6.0 -43.5 310 36 280.2 280.3 271.5 280.5 0.09 12 402 6598 -52.1 -59.1 43 7.0 -52.2 315 40 286.9 286.9 275.1 287.0 0.03 13 400 6630 -52.3 -59.3 43 7.0 -52.4 315 40 287.0 287.0 275.2 287.1 0.03 14 317 8113 -59.1 -67.1 35 8.0 -59.2 303 45 297.3 297.3 280.1 297.4 0.01 15 300 8460 -58.1 -66.1 35 8.0 -58.2 300 46 303.4 303.5 282.8 303.5 0.02 16 275 9007 -59.1 -67.1 35 8.0 -59.2 309.6 309.6 285.2 309.7 0.02 TRP WND Sounding variables and indices 1000-500 mb thick: 4893.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.06 inches Sfc-500 mean rel hum: 66.58 % Est. max temperature: -14.36 C = 6.15 F Sfc-Lift cond lev (LCL): 927.26 mb = 808.59 m = 2652.82 ft T: -30.35 C 700-500 lapse rate: 5.84 C/km ThetaE index: 0.00 C Layer 979.0- -0.0 mb Conv cond level (CCL): 584.57 mb = 4077.87 m = 13378.67 ft Mean mixing ratio: 0.27 g/kg Conv temperature: 0.54 C = 32.98 F Cap Strength: 17.95 C Lifted Index: 24.88 C Risk: None Lifted Index @300 mb: 37.92 C Lifted Index @700 mb: 17.95 C Showalter Index: 16.68 C Risk: None Total Totals Index: 31.60 C Risk: None Vertical Totals Index: 17.20 C Cross Totals Index: 14.40 C K Index: -15.80 Risk: None Sweat Index: 78.00 Risk: None Energy Index: 4.38 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 36.10 J/kg Max Up Vert Vel: 8.50 m/s Conv Inhibition (B-): 8117.73 J/kg Cap Strength: 24.86 C Lift Cond Lev (LCL): 881.15 mb = 1171.21 m = 3842.49 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 341 at 22 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 ---------------------------------------------------------- 0 979 489 330 1 0.5 -0.9 | 161 21 -6.9 20.2 1 850 1431 310 21 16.1 -13.5 | 229 12 8.7 7.6 2 700 2830 310 33 25.3 -21.2 | 270 18 17.9 -0.1 3 500 5160 310 36 27.6 -23.1 | 276 20 20.2 -2.1 4 400 6630 315 40 28.3 -28.3 | 289 22 20.9 -7.2 5 300 8460 300 46 39.8 -23.0 | 273 33 32.5 -1.9 Wind Parameters Mean winds (0-6000m): 310.7 at 29.8 knts Storm direction: 340.7 at 22.3 knts Shear (0-3000m) pos: 0.0 neg: 5.6 tot: 5.6 10-3/s Storm rel Dir Shear (0-3000m): 110.8 deg Storm rel helicity (0-3000m) pos: 87.0 neg: 0.0 tot: 87.0 m^2/s^2 ave: 29.0 10^-3 m/s^2 rel: 0.75 Storm rel vorticity (0-3000m) horiz: 5.7 stream: 4.3 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 0.48 Bulk Shear: 75.28 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 ------------------------------------------------------------------------------- 500 305 6 172 18| 0.0 10.9 10.9| 21.6 0.0 21.6 43.1 0.49| 11.0 5.4 1000 311 12 186 14| 0.0 10.6 10.6| 49.7 0.0 49.7 49.7 0.71| 10.8 7.7 1500 310 15 201 12| 0.0 8.5 8.5| 62.6 0.0 62.6 41.8 0.75| 8.7 6.5 2000 310 18 216 11| 0.0 7.5 7.5| 75.6 0.0 75.6 37.8 0.76| 7.6 5.7 2500 310 21 229 11| 0.0 6.6 6.6| 85.0 0.0 85.0 34.0 0.75| 6.7 5.0 3000 310 23 238 12| 0.0 5.6 5.6| 87.0 0.0 87.0 29.0 0.75| 5.7 4.3 4000 310 26 250 13| 0.0 4.4 4.4| 90.9 0.0 90.9 22.7 0.74| 4.4 3.3 5000 310 28 258 14| 0.1 3.6 3.7| 99.4 0.0 99.4 19.9 0.74| 3.8 2.8 6000 311 30 264 15| 0.4 3.0 3.4|118.0 0.0 118.0 19.7 0.76| 3.4 2.6 Wrote GIF file: /home/apache/climate/data/raob//UIBB/skewt/UIBB.skewt.20251209.00.gif