UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025121900.upa.cvt Date: 0000Z 19 DEC 25 Searching for U4641... Searching the city database file for: U4641 ... Date:0000Z 19 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 1012 119 -42.3 -47.3 58 5.0 -42.4 100 1 230.1 230.1 230.0 230.2 0.05 1 1003 180 -41.5 -48.5 47 7.0 -41.6 59 1 231.5 231.5 231.3 231.6 0.05 2 1000 200 -39.5 -46.5 47 7.0 -39.6 45 1 233.6 233.7 233.5 233.8 0.06 3 996 227 -38.9 -44.9 53 6.0 -39.1 41 1 234.5 234.5 234.4 234.7 0.07 4 993 248 -36.3 -43.3 48 7.0 -36.5 38 1 237.3 237.3 237.1 237.6 0.08 5 975 374 -31.9 -38.9 50 7.0 -32.2 19 2 243.0 243.0 242.6 243.4 0.14 6 952 542 -28.5 -34.5 56 6.0 -28.9 355 2 248.1 248.1 247.4 248.7 0.22 7 925 747 -26.7 -31.7 63 5.0 -27.1 325 3 252.0 252.1 251.1 252.8 0.29 8 907 889 -25.3 -30.1 64 4.8 -25.8 324 4 254.9 254.9 253.7 255.8 0.35 9 850 1360 -24.7 -29.1 67 4.4 -25.1 320 9 260.3 260.3 258.2 261.4 0.41 10 842 1429 -24.7 -29.0 67 4.3 -25.1 320 10 261.0 261.0 258.8 262.2 0.41 11 767 2104 -27.3 -31.4 68 4.1 -27.7 320 16 265.2 265.3 261.9 266.3 0.36 12 700 2757 -31.3 -35.1 69 3.8 -31.6 320 23 267.8 267.9 263.7 268.7 0.28 13 545 4496 -41.1 -44.8 67 3.7 -41.2 327 14 276.0 276.1 269.0 276.5 0.13 14 500 5080 -43.3 -47.3 65 4.0 -43.5 330 11 280.2 280.3 271.5 280.6 0.11 15 448 5811 -46.7 -50.6 64 3.9 -46.8 332 9 284.9 284.9 274.1 285.2 0.08 16 408 6422 -51.3 -55.2 63 3.9 -51.4 335 7 286.7 286.7 275.0 286.9 0.05 17 400 6550 -51.9 -56.0 61 4.1 -52.0 335 7 287.5 287.5 275.5 287.7 0.05 18 309 8186 -61.1 -65.0 60 3.9 -61.2 315 5 296.7 296.7 279.9 296.8 0.02 19 307 8227 -60.9 -64.8 60 3.9 -60.9 315 5 297.5 297.5 280.3 297.6 0.02 20 300 8370 -60.3 -64.4 58 4.1 -60.3 315 3 300.3 300.3 281.5 300.4 0.02 21 250 9520 -56.9 -61.1 59 4.2 -57.0 315 5 321.5 321.5 289.2 321.6 0.04 22 249 9545 -56.7 -60.9 59 4.2 -56.8 314 5 322.1 322.1 289.5 322.3 0.04 23 200 10930 -55.5 -59.8 59 4.3 -55.6 255 7 344.9 344.9 295.6 345.1 0.06 24 188 11326 -55.1 -59.5 58 4.4 -55.2 247 7 351.7 351.7 297.1 352.0 0.07 25 155 12552 -57.9 -62.6 55 4.7 -58.0 224 9 366.9 366.9 300.1 367.1 0.05 26 150 12760 -56.5 -61.1 56 4.6 -56.6 220 9 372.7 372.7 301.1 373.0 0.07 27 100 15330 -57.3 -62.3 53 5.0 -57.5 210 19 417.0 417.0 307.4 417.5 0.09 28 92 15856 -56.5 -61.5 53 5.0 -56.7 211 21 428.7 428.7 308.7 429.2 0.11 29 74 17230 -57.7 -62.7 53 5.0 -57.9 214 27 453.7 453.7 311.3 454.3 0.11 30 70 17580 -57.1 -63.1 46 6.0 -57.4 215 29 462.2 462.3 312.0 462.9 0.11 31 50 19740 -51.3 -58.3 43 7.0 -52.1 225 42 522.6 522.7 316.6 524.5 0.29 32 38 21532 -49.1 -59.1 30 10.0 -50.7 570.9 571.0 319.3 573.3 0.35 TRP 309 8186 -61.1 -65.0 60 3.9 -61.2 315 5 296.7 296.7 279.9 296.8 0.02 WND Sounding variables and indices 1000-500 mb thick: 4880.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.07 inches Sfc-500 mean rel hum: 65.70 % Est. max temperature: -13.17 C = 8.29 F Sfc-Lift cond lev (LCL): 925.96 mb = 739.62 m = 2426.56 ft T: -26.76 C 700-500 lapse rate: 5.17 C/km ThetaE index: 0.00 C Layer 1012.0- 0.0 mb Conv cond level (CCL): 1003.00 mb = 179.53 m = 589.00 ft Mean mixing ratio: 0.18 g/kg Conv temperature: -35.04 C = -31.08 F Cap Strength: 26.09 C Lifted Index: 28.93 C Risk: None Lifted Index @300 mb: 39.23 C Lifted Index @700 mb: 20.71 C Showalter Index: 15.51 C Risk: None Total Totals Index: 32.80 C Risk: None Vertical Totals Index: 18.60 C Cross Totals Index: 14.20 C K Index: -14.30 Risk: None Sweat Index: 29.00 Risk: None Energy Index: 4.04 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 87.38 J/kg Max Up Vert Vel: 13.22 m/s Conv Inhibition (B-): 47834.78 J/kg Cap Strength: 28.45 C Lift Cond Lev (LCL): 887.34 mb = 1048.04 m = 3438.40 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 354 at 10 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 1012 119 100 1 -1.0 0.2 | 168 10 -2.1 9.7 1 1000 200 45 1 -0.7 -0.7 | 169 9 -1.8 8.8 2 925 747 325 3 1.7 -2.5 | 185 7 0.7 7.1 3 850 1360 320 9 5.8 -6.9 | 241 5 4.7 2.6 4 700 2757 320 23 14.8 -17.6 | 301 16 13.7 -8.1 5 500 5080 330 11 5.5 -9.5 | 270 4 4.4 0.0 6 400 6550 335 7 3.0 -6.3 | 211 4 1.9 3.2 7 309 8186 315 5 3.5 -3.5 | 202 6 2.5 6.0 8 300 8370 315 3 2.1 -2.1 | 188 7 1.1 7.4 9 250 9520 315 5 3.5 -3.5 | 202 6 2.5 6.0 10 200 10930 255 7 6.8 1.8 | 207 13 5.7 11.3 11 150 12760 220 9 5.8 6.9 | 196 17 4.7 16.4 12 100 15330 210 19 9.5 16.5 | 198 27 8.4 26.0 13 70 17580 215 29 16.6 23.8 | 205 37 15.6 33.3 14 50 19740 225 42 29.7 29.7 | 216 49 28.6 39.2 Wind Parameters Mean winds (0-6000m): 323.6 at 12.8 knts Storm direction: 353.6 at 9.6 knts Shear (0-3000m) pos: 0.1 neg: 3.8 tot: 4.0 10-3/s Storm rel Dir Shear (0-3000m): 132.1 deg Storm rel helicity (0-3000m) pos: 32.1 neg: -0.4 tot: 31.6 m^2/s^2 ave: 10.5 10^-3 m/s^2 rel: 0.62 Storm rel vorticity (0-3000m) horiz: 4.4 stream: 2.7 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 4.88 Bulk Shear: 17.89 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 6 2 171 8| 0.0 3.2 3.2| 2.5 -0.1 2.4 4.8 0.36| 3.5 1.2 1000 331 3 183 7| 0.0 3.8 3.8| 9.2 -0.1 9.1 9.1 0.67| 4.1 2.7 1500 324 5 198 6| 0.0 4.2 4.2| 16.1 -0.1 16.0 10.7 0.78| 4.4 3.4 2000 322 7 220 5| 0.0 4.5 4.5| 23.1 -0.1 23.0 11.5 0.74| 4.6 3.4 2500 321 10 247 5| 0.0 4.6 4.6| 30.2 -0.1 30.0 12.0 0.68| 4.7 3.2 3000 321 12 265 6| 0.1 3.8 4.0| 32.1 -0.4 31.6 10.5 0.62| 4.4 2.7 4000 322 13 277 7| 0.8 2.9 3.6| 32.1 -3.1 28.9 7.2 0.48| 4.0 1.9 5000 322 13 279 7| 1.1 2.3 3.4| 32.1 -7.4 24.7 4.9 0.34| 3.7 1.3 6000 324 13 277 7| 1.2 1.9 3.1| 32.1 -9.8 22.2 3.7 0.25| 3.3 0.8 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20251219.00.gif