UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120112.upa.cvt Date: 1200Z 1 DEC 25 Searching for U4641... Searching the city database file for: U4641 ... Date:1200Z 1 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 1026 110 -40.1 -44.1 65 4.0 -40.2 220 1 231.3 231.4 231.3 231.5 0.07 1 1008 232 -39.5 -44.5 59 5.0 -39.6 254 5 233.1 233.1 233.0 233.3 0.07 2 1007 239 -38.5 -43.5 59 5.0 -38.7 256 5 234.2 234.2 234.1 234.4 0.08 3 1003 267 -33.3 -38.3 61 5.0 -33.5 264 6 239.6 239.7 239.4 240.0 0.14 4 1000 288 -32.3 -38.3 55 6.0 -32.6 270 7 240.9 240.9 240.6 241.2 0.14 5 997 309 -30.5 -35.5 62 5.0 -30.8 269 7 242.9 242.9 242.6 243.4 0.19 6 979 439 -28.5 -33.5 62 5.0 -28.8 265 6 246.1 246.2 245.7 246.8 0.23 7 975 469 -26.5 -31.5 63 5.0 -26.9 264 6 248.4 248.5 247.9 249.2 0.28 8 949 664 -25.5 -29.8 67 4.3 -25.9 257 6 251.4 251.4 250.7 252.3 0.34 9 925 850 -25.7 -29.7 69 4.0 -26.1 250 5 253.0 253.1 252.1 254.0 0.35 10 850 1461 -26.5 -30.2 71 3.7 -26.8 235 5 258.4 258.4 256.6 259.4 0.37 11 839 1555 -26.7 -30.3 72 3.6 -27.1 236 6 259.1 259.2 257.2 260.2 0.37 12 804 1863 -25.7 -29.6 70 3.9 -26.1 239 8 263.4 263.4 260.6 264.6 0.41 13 789 2000 -24.9 -29.1 68 4.2 -25.4 241 9 265.7 265.7 262.4 266.9 0.44 14 722 2644 -25.5 -35.5 39 10.0 -26.4 248 13 271.8 271.9 266.4 272.6 0.26 15 700 2868 -26.5 -38.5 31 12.0 -27.5 250 15 273.1 273.2 267.2 273.8 0.20 16 638 3533 -30.7 -44.7 24 14.0 -31.5 244 18 275.7 275.7 268.7 276.1 0.11 17 556 4500 -36.1 -48.1 28 12.0 -36.7 236 23 280.4 280.4 271.5 280.7 0.09 18 500 5230 -41.3 -51.3 33 10.0 -41.6 230 27 282.7 282.7 272.8 282.9 0.07 19 400 6700 -52.9 -61.9 33 9.0 -53.0 215 33 286.2 286.2 274.7 286.3 0.02 20 350 7547 -59.1 -67.1 35 8.0 -59.2 215 34 289.0 289.0 276.2 289.1 0.01 21 300 8500 -64.3 -72.3 33 8.0 -64.3 215 36 294.7 294.7 279.0 294.7 0.01 22 271 9122 -67.9 -75.9 31 8.0 -67.9 210 36 298.2 298.2 280.6 298.2 0.00 23 258 9419 -68.3 -76.3 31 8.0 -68.3 210 33 301.8 301.8 282.1 301.8 0.00 24 250 9610 -66.9 -74.9 31 8.0 -67.0 210 31 306.6 306.6 284.0 306.6 0.01 25 200 10970 -62.1 -70.1 34 8.0 -62.2 210 11 334.4 334.4 292.9 334.5 0.02 26 192 11223 -60.9 -68.9 34 8.0 -61.0 204 10 340.3 340.3 294.4 340.3 0.02 27 150 12750 -62.1 -70.1 34 8.0 -62.2 165 5 363.1 363.1 299.3 363.2 0.02 28 100 15260 -62.5 -72.5 25 10.0 -62.7 140 7 407.0 407.0 306.2 407.1 0.02 29 70 17430 -64.9 -74.9 24 10.0 -65.1 145 19 445.5 445.5 310.4 445.7 0.02 30 60 18365 -67.5 -77.5 23 10.0 -67.7 150 21 459.8 459.8 311.8 459.9 0.02 31 50 19470 -65.3 -76.3 20 11.0 -65.5 155 23 489.6 489.6 314.2 489.7 0.02 32 35 21630 -67.9 -78.9 19 11.0 -68.1 155 39 535.4 535.4 317.2 535.5 0.02 33 30 22560 -66.5 -78.5 17 12.0 -66.8 155 46 563.4 563.4 318.8 563.5 0.03 34 26 23433 -63.3 -75.3 18 12.0 -63.9 596.0 596.0 320.5 596.4 0.05 TRP 271 9122 -67.9 -75.9 31 8.0 -67.9 210 36 298.2 298.2 280.6 298.2 0.00 WND Sounding variables and indices 1000-500 mb thick: 4942.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.05 inches Sfc-500 mean rel hum: 45.92 % Est. max temperature: -14.80 C = 5.37 F Sfc-Lift cond lev (LCL): 956.47 mb = 607.56 m = 1993.28 ft T: -25.79 C 700-500 lapse rate: 6.27 C/km ThetaE index: 0.00 C Layer 1026.0- 0.0 mb Conv cond level (CCL): 1008.00 mb = 231.95 m = 760.98 ft Mean mixing ratio: 0.24 g/kg Conv temperature: -31.65 C = -24.97 F Cap Strength: 29.27 C Lifted Index: 30.28 C Risk: None Lifted Index @300 mb: 34.65 C Lifted Index @700 mb: 24.81 C Showalter Index: 19.15 C Risk: None Total Totals Index: 25.90 C Risk: None Vertical Totals Index: 14.80 C Cross Totals Index: 11.10 C K Index: -27.40 Risk: None Sweat Index: 37.00 Risk: None Energy Index: 5.06 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 89.98 J/kg Max Up Vert Vel: 13.41 m/s Conv Inhibition (B-): 53456.64 J/kg Cap Strength: 30.12 C Lift Cond Lev (LCL): 919.77 mb = 891.00 m = 2923.19 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 266 at 12 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 1026 110 220 1 0.6 0.8 | 90 11 -11.4 0.0 1 1000 288 270 7 7.0 -0.0 | 81 5 -5.1 -0.8 2 925 850 250 5 4.7 1.7 | 97 7 -7.4 0.9 3 850 1461 235 5 4.1 2.9 | 105 8 -8.0 2.1 4 700 2868 250 15 14.1 5.1 | 205 5 2.0 4.4 5 500 5230 230 27 20.7 17.4 | 207 19 8.6 16.6 6 400 6700 215 33 18.9 27.0 | 195 27 6.8 26.3 7 300 8500 215 36 20.6 29.5 | 197 30 8.6 28.7 8 271 9122 210 36 18.0 31.2 | 191 31 5.9 30.4 9 250 9610 210 31 15.5 26.8 | 187 26 3.4 26.1 10 200 10970 210 11 5.5 9.5 | 143 11 -6.6 8.8 11 150 12750 165 5 -1.3 4.8 | 107 14 -13.4 4.1 12 100 15260 140 7 -4.5 5.4 | 105 17 -16.6 4.6 13 70 17430 145 19 -10.9 15.6 | 123 27 -23.0 14.8 14 50 19470 155 23 -9.7 20.8 | 133 30 -21.8 20.1 15 30 22560 155 46 -19.4 41.7 | 142 52 -31.5 40.9 Wind Parameters Mean winds (0-6000m): 236.4 at 16.2 knts Storm direction: 266.4 at 12.1 knts Shear (0-3000m) pos: 2.6 neg: 0.4 tot: 3.0 10-3/s Storm rel Dir Shear (0-3000m): 119.0 deg Storm rel helicity (0-3000m) pos: 20.5 neg: -2.6 tot: 17.8 m^2/s^2 ave: 5.9 10^-3 m/s^2 rel: 0.51 Storm rel vorticity (0-3000m) horiz: 3.8 stream: 2.0 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 5.07 Bulk Shear: 17.75 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 ------------------------------------------------------------------------------- 500 265 6 88 7| 5.3 0.0 5.3| 4.3 -2.6 1.7 3.3 0.07| 8.6 0.6 1000 259 5 93 7| 2.6 0.8 3.5| 6.0 -2.6 3.4 3.4 0.15| 5.2 0.8 1500 252 5 97 7| 1.8 0.8 2.5| 8.7 -2.6 6.1 4.0 0.23| 4.1 0.9 2000 248 6 102 7| 2.2 0.6 2.8| 13.3 -2.6 10.7 5.4 0.36| 4.0 1.4 2500 248 7 108 6| 2.5 0.5 3.0| 17.6 -2.6 15.0 6.0 0.48| 3.9 1.9 3000 249 8 117 5| 2.6 0.4 3.0| 20.5 -2.6 17.8 5.9 0.51| 3.8 2.0 4000 246 11 148 4| 2.0 0.9 2.9| 21.3 -2.8 18.4 4.6 0.42| 3.6 1.5 5000 241 14 178 6| 1.6 1.4 3.0| 21.3 -7.1 14.2 2.8 0.31| 3.5 1.1 6000 236 16 189 8| 1.3 1.7 3.0| 21.3 -24.0 -2.8 -0.5 0.19| 3.5 0.7 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20251201.12.gif