UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120912.upa.cvt Date: 1200Z 9 DEC 25 Searching for U4641... Searching the city database file for: U4641 ... Date:1200Z 9 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 114 -37.1 -40.9 68 3.8 -37.2 240 3 235.2 235.3 235.1 235.5 0.11 1 1000 196 -37.9 -42.8 60 4.9 -38.1 250 7 235.2 235.3 235.1 235.5 0.09 2 987 286 -37.5 -42.4 60 4.9 -37.7 253 8 236.5 236.5 236.4 236.8 0.09 3 978 350 -33.9 -38.9 61 5.0 -34.1 254 9 240.8 240.8 240.5 241.1 0.13 4 971 401 -28.5 -33.5 62 5.0 -28.8 256 10 246.7 246.8 246.2 247.4 0.23 5 925 751 -25.7 -29.7 69 4.0 -26.1 265 15 253.0 253.1 252.1 254.0 0.35 6 898 966 -24.9 -28.8 70 3.9 -25.3 274 14 256.0 256.1 254.7 257.1 0.39 7 850 1365 -25.3 -29.2 70 3.9 -25.7 290 13 259.6 259.7 257.7 260.8 0.40 8 834 1503 -25.5 -29.4 70 3.9 -25.9 292 13 260.8 260.9 258.7 262.0 0.40 9 700 2757 -31.5 -35.3 69 3.8 -31.8 310 9 267.6 267.6 263.5 268.4 0.27 10 651 3267 -33.7 -37.8 66 4.1 -34.0 335 8 270.7 270.8 265.6 271.4 0.23 11 500 5070 -45.3 -49.2 65 3.9 -45.4 65 3 277.8 277.8 269.9 278.1 0.09 12 469 5495 -48.3 -52.3 63 4.0 -48.4 61 3 279.2 279.2 270.8 279.4 0.06 13 400 6530 -54.1 -58.1 61 4.0 -54.2 50 3 284.7 284.7 273.9 284.8 0.04 14 324 7864 -61.9 -65.7 60 3.8 -61.9 68 4 291.6 291.6 277.5 291.7 0.02 15 300 8340 -63.3 -67.3 58 4.0 -63.3 75 5 296.1 296.1 279.6 296.2 0.01 16 299 8360 -63.5 -67.6 57 4.1 -63.6 70 5 296.1 296.1 279.6 296.2 0.01 17 285 8653 -63.5 -67.6 57 4.1 -63.6 43 4 300.2 300.2 281.4 300.3 0.02 18 250 9460 -59.9 -63.9 59 4.0 -60.0 330 1 317.0 317.0 287.8 317.1 0.03 19 248 9510 -59.3 -63.4 59 4.1 -59.3 325 1 318.6 318.6 288.3 318.8 0.03 20 215 10411 -56.1 -60.1 61 4.0 -56.2 239 4 336.9 336.9 293.6 337.1 0.05 21 200 10870 -56.9 -61.1 59 4.2 -57.0 195 5 342.7 342.7 295.0 342.9 0.05 22 150 12690 -56.1 -60.5 58 4.4 -56.2 200 9 373.4 373.4 301.2 373.8 0.07 23 122 14010 -54.7 -59.6 55 4.9 -54.9 200 15 398.7 398.7 305.1 399.2 0.10 24 100 15280 -56.3 -62.3 47 6.0 -56.5 200 21 418.9 419.0 307.6 419.4 0.09 25 76 17015 -57.7 -64.7 40 7.0 -58.0 204 34 450.2 450.3 310.9 450.7 0.08 26 70 17530 -60.1 -68.1 34 8.0 -60.4 205 38 455.8 455.8 311.4 456.1 0.06 27 58 18695 -62.5 -70.5 33 8.0 -62.7 202 41 475.6 475.6 313.1 475.9 0.05 28 50 19610 -62.5 -71.5 29 9.0 -62.8 200 44 496.2 496.2 314.7 496.5 0.05 29 40 20992 -60.3 -70.3 26 10.0 -60.8 207 51 534.4 534.4 317.2 534.9 0.07 30 34 21998 -63.3 -73.3 25 10.0 -63.7 211 56 552.0 552.0 318.2 552.3 0.06 31 30 22770 -61.3 -72.3 22 11.0 -61.9 215 60 577.5 577.6 319.6 578.1 0.07 32 28 23201 -60.7 -71.7 22 11.0 -61.4 213 64 590.7 590.7 320.2 591.3 0.09 33 27 23430 -57.5 -69.5 20 12.0 -58.6 212 65 605.9 605.9 320.9 606.8 0.12 34 24 24172 -60.3 -72.3 19 12.0 -61.2 209 72 618.5 618.5 321.5 619.2 0.09 35 20 25320 -57.7 -69.7 20 12.0 -59.0 205 81 659.6 659.6 323.1 660.9 0.16 36 18 25988 -55.7 -68.7 18 13.0 -57.5 686.0 686.1 324.0 687.8 0.20 37 17 26350 -58.3 -71.3 17 13.0 -59.8 689.0 689.1 324.1 690.3 0.15 38 16 26733 -56.9 -69.9 18 13.0 -58.7 705.6 705.7 324.7 707.3 0.19 TRP 299 8360 -63.5 -67.6 57 4.1 -63.6 70 5 296.1 296.1 279.6 296.2 0.01 WND Sounding variables and indices 1000-500 mb thick: 4874.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.06 inches Sfc-500 mean rel hum: 67.14 % Est. max temperature: -13.56 C = 7.60 F Sfc-Lift cond lev (LCL): 947.45 mb = 578.05 m = 1896.46 ft T: -27.08 C 700-500 lapse rate: 5.97 C/km ThetaE index: 0.04 C Layer 1000.0- 987.0 mb Conv cond level (CCL): 1000.00 mb = 196.00 m = 643.04 ft Mean mixing ratio: 0.23 g/kg Conv temperature: -32.46 C = -26.44 F Cap Strength: 21.77 C Lifted Index: 25.93 C Risk: None Lifted Index @300 mb: 35.38 C Lifted Index @700 mb: 19.46 C Showalter Index: 14.04 C Risk: None Total Totals Index: 36.10 C Risk: None Vertical Totals Index: 20.00 C Cross Totals Index: 16.10 C K Index: -13.00 Risk: None Sweat Index: 29.00 Risk: None Energy Index: 3.66 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 93.37 J/kg Max Up Vert Vel: 13.67 m/s Conv Inhibition (B-): 67448.43 J/kg Cap Strength: 25.73 C Lift Cond Lev (LCL): 908.47 mb = 881.88 m = 2893.28 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 330 at 6 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 114 240 3 2.6 1.5 | 177 7 -0.4 6.6 1 1000 196 250 7 6.6 2.4 | 206 8 3.6 7.4 2 925 751 265 15 14.9 1.3 | 242 14 12.0 6.4 3 850 1365 290 13 12.2 -4.4 | 266 9 9.2 0.6 4 700 2757 310 9 6.9 -5.8 | 281 4 3.9 -0.7 5 500 5070 65 3 -2.7 -1.3 | 124 7 -5.7 3.8 6 400 6530 50 3 -2.3 -1.9 | 121 6 -5.3 3.1 7 300 8340 75 5 -4.8 -1.3 | 116 9 -7.8 3.8 8 299 8360 70 5 -4.7 -1.7 | 114 8 -7.7 3.3 9 250 9460 330 1 0.5 -0.9 | 149 5 -2.5 4.2 10 200 10870 195 5 1.3 4.8 | 170 10 -1.7 9.9 11 150 12690 200 9 3.1 8.5 | 180 14 0.1 13.5 12 100 15280 200 21 7.2 19.7 | 190 25 4.2 24.8 13 70 17530 205 38 16.1 34.4 | 198 42 13.1 39.5 14 50 19610 200 44 15.0 41.3 | 195 48 12.1 46.4 15 30 22770 215 60 34.4 49.1 | 210 63 31.4 54.2 16 20 25320 205 81 34.2 73.4 | 202 84 31.3 78.5 Wind Parameters Mean winds (0-6000m): 299.5 at 7.8 knts Storm direction: 329.5 at 5.9 knts Shear (0-3000m) pos: 1.5 neg: 0.0 tot: 1.5 10-3/s Storm rel Dir Shear (0-3000m): 146.3 deg Storm rel helicity (0-3000m) pos: 45.2 neg: 0.0 tot: 45.2 m^2/s^2 ave: 15.1 10^-3 m/s^2 rel: 0.70 Storm rel vorticity (0-3000m) horiz: 4.6 stream: 3.3 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 17.44 Bulk Shear: 5.35 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 ------------------------------------------------------------------------------- 500 256 9 219 9| 10.6 0.0 10.6| 20.4 0.0 20.4 40.8 0.84| 10.8 9.1 1000 265 12 235 11| 6.0 0.0 6.0| 35.4 0.0 35.4 35.4 0.82| 8.4 6.9 1500 273 12 244 10| 3.7 0.0 3.7| 41.3 0.0 41.3 27.6 0.79| 6.8 5.4 2000 278 12 250 9| 2.5 0.0 2.5| 42.7 0.0 42.7 21.3 0.75| 5.6 4.2 2500 283 12 253 9| 1.8 0.0 1.8| 43.4 0.0 43.4 17.3 0.71| 4.9 3.5 3000 287 11 257 8| 1.5 0.0 1.5| 45.2 0.0 45.2 15.1 0.70| 4.6 3.3 4000 294 10 262 6| 1.0 0.0 1.0| 49.1 0.0 49.1 12.3 0.73| 4.3 3.2 5000 295 9 255 5| 0.6 0.0 0.6| 54.8 0.0 54.8 11.0 0.75| 3.9 2.9 6000 300 8 253 4| 0.5 0.0 0.6| 54.8 -0.4 54.4 9.1 0.73| 3.3 2.4 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20251209.12.gif