UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120200.upa.cvt Date: 0000Z 2 DEC 25 Searching for U4641... Searching the city database file for: U4641 ... Date:0000Z 2 DEC 25 Station: U4641 WMO ident: 24641 Latitude: 63.77 Longitude: 121.62 ------------------------------------------------------------------------------- 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 1022 114 -40.5 -44.4 66 3.9 -40.6 195 1 231.2 231.2 231.2 231.4 0.07 1 1000 263 -37.9 -42.9 59 5.0 -38.1 240 7 235.2 235.3 235.1 235.5 0.09 2 999 270 -37.9 -42.9 59 5.0 -38.1 240 7 235.3 235.3 235.2 235.6 0.09 3 990 333 -29.5 -34.5 62 5.0 -29.8 243 8 244.4 244.4 244.0 244.9 0.21 4 970 480 -25.7 -30.5 64 4.8 -26.1 250 11 249.6 249.7 249.0 250.5 0.31 5 925 826 -24.1 -28.5 67 4.4 -24.5 265 17 254.7 254.7 253.6 255.8 0.39 6 908 961 -23.3 -27.7 67 4.4 -23.8 267 17 256.8 256.9 255.5 258.0 0.43 7 870 1274 -23.5 -28.1 66 4.6 -24.0 272 16 259.8 259.9 257.9 261.0 0.43 8 850 1444 -23.3 -29.3 58 6.0 -23.9 275 15 261.7 261.8 259.3 262.9 0.40 9 752 2338 -23.9 -35.9 32 12.0 -25.0 262 18 270.4 270.5 265.4 271.1 0.24 10 700 2858 -26.9 -43.9 18 17.0 -28.0 255 19 272.7 272.7 266.7 273.1 0.11 11 686 3004 -27.9 -44.9 18 17.0 -29.0 254 20 273.2 273.2 267.0 273.5 0.10 12 631 3601 -30.3 -44.3 24 14.0 -31.2 249 23 277.0 277.1 269.5 277.4 0.12 13 500 5220 -41.3 -49.3 42 8.0 -41.6 235 31 282.7 282.7 272.9 283.0 0.09 14 491 5342 -42.5 -50.5 41 8.0 -42.8 235 31 282.7 282.7 272.9 282.9 0.08 15 400 6690 -52.3 -59.3 43 7.0 -52.4 235 31 287.0 287.0 275.2 287.1 0.03 16 344 7652 -59.5 -66.5 40 7.0 -59.6 235 32 289.9 289.9 276.6 290.0 0.01 17 300 8500 -64.7 -71.7 38 7.0 -64.7 235 33 294.1 294.1 278.7 294.2 0.01 18 268 9181 -67.9 -74.9 36 7.0 -67.9 230 29 299.1 299.1 281.0 299.1 0.01 19 258 9409 -66.7 -73.7 37 7.0 -66.7 230 26 304.2 304.2 283.1 304.2 0.01 20 250 9600 -65.3 -72.3 37 7.0 -65.3 230 23 309.0 309.0 284.9 309.0 0.01 21 200 10970 -61.9 -68.9 39 7.0 -62.0 280 5 334.7 334.7 293.0 334.8 0.02 22 167 12086 -61.3 -69.3 34 8.0 -61.4 20 2 353.5 353.5 297.4 353.5 0.02 23 150 12750 -62.3 -70.3 33 8.0 -62.4 80 1 362.8 362.8 299.2 362.8 0.02 24 100 15240 -63.7 -72.7 28 9.0 -63.8 115 5 404.7 404.7 305.8 404.8 0.02 25 87 16089 -66.3 -76.3 23 10.0 -66.4 127 9 415.9 415.9 307.2 415.9 0.01 26 83 16376 -64.5 -74.5 24 10.0 -64.7 131 10 425.2 425.2 308.3 425.3 0.02 27 70 17410 -67.3 -77.3 23 10.0 -67.4 145 15 440.4 440.4 309.9 440.5 0.01 28 67 17673 -68.1 -78.1 23 10.0 -68.2 144 15 444.2 444.2 310.3 444.3 0.01 29 50 19430 -67.7 -78.7 19 11.0 -67.9 140 17 484.0 484.0 313.8 484.0 0.02 30 30 22519 -65.7 -77.7 17 12.0 -66.1 565.5 565.5 318.9 565.8 0.03 TRP 268 9181 -67.9 -74.9 36 7.0 -67.9 230 29 299.1 299.1 281.0 299.1 0.01 WND Sounding variables and indices 1000-500 mb thick: 4957.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.05 inches Sfc-500 mean rel hum: 40.62 % Est. max temperature: -11.89 C = 10.59 F Sfc-Lift cond lev (LCL): 954.33 mb = 598.85 m = 1964.70 ft T: -25.15 C 700-500 lapse rate: 6.10 C/km Conv cond level (CCL): 1000.00 mb = 263.00 m = 862.85 ft Mean mixing ratio: 0.26 g/kg Conv temperature: -30.67 C = -23.20 F Cap Strength: 26.69 C Lifted Index: 29.58 C Risk: None Lifted Index @300 mb: 33.66 C Lifted Index @700 mb: 23.65 C Showalter Index: 16.34 C Risk: None Total Totals Index: 30.00 C Risk: None Vertical Totals Index: 18.00 C Cross Totals Index: 12.00 C K Index: -28.30 Risk: None Sweat Index: 61.00 Risk: None Energy Index: 4.30 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 98.82 J/kg Max Up Vert Vel: 14.06 m/s Conv Inhibition (B-): 46927.71 J/kg Cap Strength: 29.35 C Lift Cond Lev (LCL): 919.49 mb = 869.59 m = 2852.95 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 277 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 1022 114 195 1 0.3 1.0 | 101 16 -15.7 3.1 1 1000 263 240 7 6.1 3.5 | 119 11 -9.9 5.6 2 925 826 265 17 16.9 1.5 | 196 4 1.0 3.6 3 850 1444 275 15 14.9 -1.3 | 128 1 -1.0 0.8 4 700 2858 255 19 18.4 4.9 | 199 7 2.4 7.0 5 500 5220 235 31 25.4 17.8 | 205 22 9.4 19.9 6 400 6690 235 31 25.4 17.8 | 205 22 9.4 19.9 7 300 8500 235 33 27.0 18.9 | 208 24 11.1 21.0 8 268 9181 230 29 22.2 18.6 | 197 22 6.3 20.7 9 250 9600 230 23 17.6 14.8 | 186 17 1.7 16.9 10 200 10970 280 5 4.9 -0.9 | 96 11 -11.0 1.2 11 150 12750 80 1 -1.0 -0.2 | 96 17 -16.9 1.9 12 100 15240 115 5 -4.5 2.1 | 102 21 -20.5 4.2 13 70 17410 145 15 -8.6 12.3 | 120 28 -24.5 14.4 14 50 19430 140 17 -10.9 13.0 | 119 31 -26.9 15.1 Wind Parameters Mean winds (0-6000m): 247.5 at 21.4 knts Storm direction: 277.5 at 16.1 knts Shear (0-3000m) pos: 2.6 neg: 1.3 tot: 4.0 10-3/s Storm rel Dir Shear (0-3000m): 102.1 deg Storm rel helicity (0-3000m) pos: 34.4 neg: -0.9 tot: 33.5 m^2/s^2 ave: 11.2 10^-3 m/s^2 rel: 0.46 Storm rel vorticity (0-3000m) horiz: 5.1 stream: 2.3 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 4.26 Bulk Shear: 23.18 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 ------------------------------------------------------------------------------- 500 248 8 122 10| 13.1 0.0 13.1| 27.5 0.0 27.5 54.9 0.67| 13.9 9.4 1000 260 12 135 6| 8.1 0.0 8.1| 31.9 -0.3 31.5 31.5 0.63| 10.0 6.3 1500 265 13 138 4| 5.2 0.0 5.2| 32.1 -0.9 31.2 20.8 0.53| 7.5 4.0 2000 266 14 145 4| 3.9 0.6 4.6| 32.8 -0.9 31.9 16.0 0.53| 6.2 3.3 2500 265 15 158 4| 3.1 1.0 4.2| 33.2 -0.9 32.3 12.9 0.49| 5.5 2.7 3000 263 15 170 4| 2.6 1.3 4.0| 34.4 -0.9 33.5 11.2 0.46| 5.1 2.3 4000 258 17 189 6| 2.0 1.8 3.7| 36.9 -0.9 36.0 9.0 0.41| 4.6 1.9 5000 252 19 197 9| 1.6 2.1 3.7| 36.9 -4.4 32.5 6.5 0.33| 4.4 1.4 6000 247 21 201 11| 1.3 1.8 3.1| 36.9 -5.3 31.6 5.3 0.32| 3.7 1.2 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20251202.00.gif