UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025121012.upa.cvt Date: 1200Z 10 DEC 25 Searching for U4641... Searching the city database file for: U4641 ... Date:1200Z 10 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 1005 108 -34.7 -38.4 69 3.7 -34.8 175 1 238.1 238.1 238.0 238.5 0.14 1 1000 143 -34.5 -38.6 66 4.1 -34.7 185 3 238.6 238.7 238.5 239.0 0.14 2 997 164 -34.5 -38.8 65 4.3 -34.7 188 4 238.9 238.9 238.7 239.2 0.13 3 988 228 -32.3 -36.8 64 4.5 -32.5 195 5 241.7 241.7 241.4 242.1 0.16 4 928 666 -35.5 -39.7 65 4.2 -35.7 247 18 242.8 242.8 242.3 243.1 0.13 5 925 689 -35.1 -39.3 65 4.2 -35.3 250 19 243.4 243.4 243.0 243.8 0.14 6 911 796 -34.1 -38.5 64 4.4 -34.3 243 19 245.5 245.5 244.9 245.9 0.15 7 898 898 -27.9 -32.6 64 4.7 -28.3 236 18 252.9 253.0 251.8 253.7 0.27 8 855 1253 -24.7 -28.6 70 3.9 -25.1 213 17 259.8 259.9 257.9 261.0 0.42 9 850 1296 -24.7 -28.5 71 3.8 -25.1 210 17 260.3 260.3 258.3 261.5 0.43 10 803 1709 -25.3 -29.0 71 3.7 -25.7 229 15 263.9 264.0 261.1 265.1 0.43 11 801 1727 -25.1 -28.8 71 3.7 -25.5 230 15 264.3 264.4 261.4 265.6 0.44 12 800 1737 -23.3 -27.1 71 3.8 -23.8 230 15 266.3 266.4 263.1 267.8 0.52 13 700 2703 -28.7 -33.4 64 4.7 -29.1 275 11 270.7 270.8 265.8 271.7 0.33 14 588 3929 -37.1 -44.1 48 7.0 -37.4 270 10 274.8 274.8 268.1 275.2 0.13 15 528 4664 -42.5 -50.5 41 8.0 -42.8 267 9 276.9 276.9 269.4 277.1 0.07 16 500 5030 -45.3 -53.3 40 8.0 -45.5 265 9 277.8 277.8 269.9 278.0 0.05 17 422 6137 -53.3 -60.3 42 7.0 -53.4 257 9 281.4 281.4 272.0 281.5 0.03 18 400 6480 -54.5 -61.5 42 7.0 -54.6 255 9 284.2 284.2 273.6 284.2 0.02 19 399 6496 -54.7 -61.7 42 7.0 -54.8 255 9 284.1 284.1 273.6 284.2 0.02 20 328 7730 -61.7 -67.7 45 6.0 -61.7 216 7 290.8 290.9 277.1 290.9 0.01 21 310 8078 -62.9 -68.9 44 6.0 -62.9 205 7 293.9 293.9 278.6 293.9 0.01 22 300 8280 -63.1 -69.1 44 6.0 -63.1 210 7 296.4 296.4 279.7 296.4 0.01 23 281 8683 -63.3 -69.3 44 6.0 -63.3 214 8 301.7 301.7 282.1 301.7 0.01 24 250 9410 -59.3 -65.3 46 6.0 -59.4 220 11 317.9 317.9 288.1 318.0 0.02 25 236 9773 -57.3 -63.3 46 6.0 -57.4 215 11 326.2 326.2 290.7 326.3 0.03 26 224 10103 -57.7 -63.7 46 6.0 -57.8 210 11 330.5 330.5 291.9 330.6 0.03 27 200 10820 -57.1 -63.1 46 6.0 -57.2 200 11 342.3 342.3 294.9 342.5 0.04 28 166 11998 -56.1 -64.1 36 8.0 -56.3 203 14 362.8 362.8 299.2 362.9 0.04 29 150 12640 -56.9 -64.9 36 8.0 -57.1 205 15 372.0 372.1 300.9 372.2 0.04 30 100 15190 -58.9 -69.9 23 11.0 -59.2 180 23 413.9 413.9 307.0 414.1 0.03 31 74 17067 -62.7 -74.7 18 12.0 -62.9 193 28 443.1 443.2 310.2 443.3 0.02 32 70 17410 -62.3 -75.3 16 13.0 -62.6 195 29 451.1 451.1 311.0 451.2 0.02 33 50 19480 -62.9 -76.9 13 14.0 -63.3 190 35 495.3 495.3 314.6 495.4 0.02 34 34 21854 -63.1 -78.1 11 15.0 -63.6 552.5 552.5 318.2 552.7 0.03 TRP 310 8078 -62.9 -68.9 44 6.0 -62.9 205 7 293.9 293.9 278.6 293.9 0.01 WND Sounding variables and indices 1000-500 mb thick: 4887.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.06 inches Sfc-500 mean rel hum: 58.87 % Est. max temperature: -12.94 C = 8.70 F Sfc-Lift cond lev (LCL): 943.03 mb = 553.93 m = 1817.33 ft T: -34.68 C 700-500 lapse rate: 7.13 C/km Conv cond level (CCL): 511.05 mb = 4883.34 m = 16021.27 ft Mean mixing ratio: 0.15 g/kg Conv temperature: 4.69 C = 40.44 F Cap Strength: 28.38 C Lifted Index: 28.68 C Risk: None Lifted Index @300 mb: 37.95 C Lifted Index @700 mb: 25.25 C Showalter Index: 13.45 C Risk: None Total Totals Index: 37.40 C Risk: None Vertical Totals Index: 20.60 C Cross Totals Index: 16.80 C K Index: -12.60 Risk: None Sweat Index: 43.00 Risk: None Energy Index: 3.54 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 18.50 J/kg Max Up Vert Vel: 6.08 m/s Conv Inhibition (B-): 52393.68 J/kg Cap Strength: 28.63 C Lift Cond Lev (LCL): 886.36 mb = 992.38 m = 3255.80 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 282 at 9 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 1005 108 175 1 -0.1 1.0 | 108 9 -8.6 2.8 1 1000 143 185 3 0.3 3.0 | 120 9 -8.2 4.7 2 925 689 250 19 17.9 6.5 | 229 12 9.4 8.3 3 850 1296 210 17 8.5 14.7 | 180 16 0.0 16.5 4 700 2703 275 11 11.0 -1.0 | 252 3 2.5 0.8 5 500 5030 265 9 9.0 0.8 | 191 3 0.5 2.5 6 400 6480 255 9 8.7 2.3 | 183 4 0.2 4.1 7 310 8078 205 7 3.0 6.3 | 146 10 -5.5 8.1 8 300 8280 210 7 3.5 6.1 | 148 9 -5.0 7.8 9 250 9410 220 11 7.1 8.4 | 172 10 -1.4 10.2 10 200 10820 200 11 3.8 10.3 | 159 13 -4.7 12.1 11 150 12640 205 15 6.3 13.6 | 172 16 -2.1 15.4 12 100 15190 180 23 0.0 23.0 | 161 26 -8.5 24.8 13 70 17410 195 29 7.5 28.0 | 178 30 -1.0 29.8 14 50 19480 190 35 6.1 34.5 | 176 36 -2.4 36.2 Wind Parameters Mean winds (0-6000m): 251.7 at 11.5 knts Storm direction: 281.7 at 8.7 knts Shear (0-3000m) pos: 2.5 neg: 0.9 tot: 3.5 10-3/s Storm rel Dir Shear (0-3000m): 134.0 deg Storm rel helicity (0-3000m) pos: 86.3 neg: -44.1 tot: 42.2 m^2/s^2 ave: 14.1 10^-3 m/s^2 rel: 0.38 Storm rel vorticity (0-3000m) horiz: 8.9 stream: 3.4 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 7.87 Bulk Shear: 2.35 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 ------------------------------------------------------------------------------- 500 232 9 171 8| 16.7 0.0 16.7| 50.6 0.0 50.6 101.2 0.99| 19.5 19.3 1000 239 14 200 9| 8.4 2.8 11.2| 61.2 -29.5 31.7 31.7 0.45| 15.9 7.2 1500 231 15 195 11| 5.0 1.9 6.9| 71.6 -43.8 27.8 18.6 0.34| 13.3 4.5 2000 232 15 195 11| 3.9 1.4 5.3| 81.6 -43.8 37.8 18.9 0.37| 11.6 4.3 2500 234 14 197 11| 3.1 1.1 4.3| 85.8 -43.8 42.0 16.8 0.39| 10.4 4.0 3000 239 14 200 9| 2.5 0.9 3.5| 86.3 -44.1 42.2 14.1 0.38| 8.9 3.4 4000 246 13 205 8| 1.9 0.8 2.7| 86.3 -44.8 41.5 10.4 0.35| 6.8 2.4 5000 250 12 206 7| 1.5 0.8 2.3| 86.3 -45.4 40.8 8.2 0.32| 5.6 1.8 6000 252 12 205 6| 1.3 0.7 2.0| 86.3 -45.7 40.6 6.8 0.31| 4.7 1.5 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20251210.12.gif