UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122000.upa.cvt Date: 0000Z 20 DEC 25 Searching for U4641... Searching the city database file for: U4641 ... Date:0000Z 20 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 1015 110 -45.3 -50.2 58 4.9 -45.4 360 1 226.9 226.9 226.8 227.0 0.04 1 1013 124 -45.1 -52.1 45 7.0 -45.2 356 1 227.2 227.2 227.1 227.3 0.03 2 1011 137 -43.1 -50.1 46 7.0 -43.2 352 1 229.3 229.3 229.2 229.4 0.04 3 1010 143 -40.9 -48.9 42 8.0 -41.1 350 1 231.6 231.6 231.5 231.7 0.04 4 1000 211 -39.9 -47.9 42 8.0 -40.1 330 1 233.2 233.3 233.1 233.4 0.05 5 994 252 -39.1 -47.1 42 8.0 -39.3 327 1 234.5 234.5 234.3 234.6 0.06 6 989 287 -35.7 -43.7 44 8.0 -36.0 325 1 238.2 238.2 237.9 238.4 0.08 7 962 482 -30.1 -37.1 50 7.0 -30.5 313 1 245.8 245.8 245.2 246.2 0.16 8 925 764 -25.7 -31.7 57 6.0 -26.2 295 1 253.0 253.1 252.0 253.8 0.29 9 917 827 -25.1 -30.1 63 5.0 -25.6 294 2 254.3 254.3 253.1 255.2 0.34 10 857 1318 -24.7 -29.2 66 4.5 -25.2 286 6 259.7 259.7 257.7 260.8 0.40 11 850 1378 -24.9 -29.3 67 4.4 -25.4 285 7 260.1 260.1 258.1 261.2 0.40 12 701 2763 -30.5 -34.4 69 3.9 -30.8 315 5 268.6 268.6 264.3 269.5 0.30 13 700 2773 -30.5 -34.4 69 3.9 -30.8 315 5 268.7 268.8 264.3 269.6 0.30 14 500 5090 -45.7 -49.6 65 3.9 -45.8 80 1 277.3 277.3 269.7 277.6 0.08 15 464 5584 -48.9 -53.0 62 4.1 -49.0 50 5 279.3 279.3 270.8 279.5 0.06 16 400 6550 -53.3 -57.4 61 4.1 -53.4 350 13 285.7 285.7 274.5 285.9 0.04 17 348 7438 -57.5 -61.5 60 4.0 -57.5 347 12 291.6 291.7 277.5 291.7 0.03 18 326 7849 -58.7 -62.8 59 4.1 -58.7 345 11 295.5 295.5 279.4 295.6 0.03 19 300 8370 -59.3 -63.4 59 4.1 -59.3 335 13 301.8 301.8 282.1 301.8 0.03 20 287 8649 -59.9 -64.0 59 4.1 -59.9 340 11 304.7 304.7 283.3 304.8 0.02 21 250 9520 -57.9 -62.1 59 4.2 -58.0 355 5 320.0 320.0 288.8 320.1 0.04 22 212 10560 -55.5 -59.7 59 4.2 -55.6 274 4 339.2 339.2 294.1 339.4 0.06 23 200 10930 -55.9 -60.1 59 4.2 -56.0 245 3 344.2 344.3 295.4 344.5 0.06 24 196 11059 -55.9 -60.1 59 4.2 -56.0 243 3 346.2 346.3 295.8 346.5 0.06 25 150 12760 -56.1 -61.1 53 5.0 -56.2 220 3 373.4 373.4 301.2 373.7 0.07 26 104 15099 -55.5 -63.5 36 8.0 -55.8 225 12 415.8 415.8 307.3 416.2 0.07 27 100 15350 -55.1 -63.1 36 8.0 -55.4 225 13 421.3 421.3 307.9 421.7 0.08 28 70 17650 -50.9 -62.9 23 12.0 -51.8 240 21 475.5 475.5 313.1 476.2 0.12 29 50 19850 -48.7 -64.7 14 16.0 -50.4 240 29 528.7 528.7 316.9 529.5 0.13 30 48 20119 -47.3 -64.3 13 17.0 -49.3 240 29 538.3 538.3 317.5 539.2 0.14 31 47 20258 -47.1 -64.1 13 17.0 -49.1 239 29 542.0 542.0 317.7 543.0 0.15 32 33 22589 -48.5 -69.5 7 21.0 -51.1 236 31 596.0 596.0 320.5 596.7 0.10 33 30 23220 -45.3 -67.3 7 22.0 -48.9 235 31 621.1 621.2 321.6 622.3 0.15 34 29 23446 -44.9 -66.9 7 22.0 -48.7 233 31 628.3 628.4 321.9 629.6 0.16 35 20 25940 -42.7 -68.7 4 26.0 -48.5 215 36 705.5 705.6 324.7 707.1 0.18 36 19 26286 -43.1 -69.1 4 26.0 -48.9 714.7 714.7 325.0 716.3 0.18 37 17 27041 -39.7 -66.7 4 27.0 -47.4 748.7 748.8 326.0 751.3 0.29 38 13 28871 -40.9 -67.9 4 27.0 -49.1 804.2 804.4 327.4 807.4 0.32 TRP 326 7849 -58.7 -62.8 59 4.1 -58.7 345 11 295.5 295.5 279.4 295.6 0.03 WND Sounding variables and indices 1000-500 mb thick: 4879.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.06 inches Sfc-500 mean rel hum: 64.31 % Est. max temperature: -13.13 C = 8.36 F Sfc-Lift cond lev (LCL): 929.29 mb = 730.77 m = 2397.51 ft T: -26.22 C 700-500 lapse rate: 6.56 C/km ThetaE index: 0.00 C Layer 1015.0-11024811681644544.0 mb Conv cond level (CCL): 1013.00 mb = 123.57 m = 405.41 ft Mean mixing ratio: 0.17 g/kg Conv temperature: -36.40 C = -33.52 F Cap Strength: 22.27 C Lifted Index: 27.23 C Risk: None Lifted Index @300 mb: 40.82 C Lifted Index @700 mb: 22.27 C Showalter Index: 13.28 C Risk: None Total Totals Index: 37.20 C Risk: None Vertical Totals Index: 20.80 C Cross Totals Index: 16.40 C K Index: -12.40 Risk: None Sweat Index: 15.00 Risk: None Energy Index: 3.48 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 95.48 J/kg Max Up Vert Vel: 13.82 m/s Conv Inhibition (B-): 81661.96 J/kg Cap Strength: 27.09 C Lift Cond Lev (LCL): 884.35 mb = 1090.29 m = 3577.01 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 352 at 3 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 1015 110 360 1 -0.0 -1.0 | 169 2 -0.4 1.9 1 1000 211 330 1 0.5 -0.9 | 183 2 0.1 2.1 2 925 764 295 1 0.9 -0.4 | 192 3 0.5 2.5 3 850 1378 285 7 6.8 -1.8 | 260 6 6.4 1.1 4 700 2773 315 5 3.5 -3.5 | 281 3 3.1 -0.6 5 500 5090 80 1 -1.0 -0.2 | 154 3 -1.4 2.8 6 400 6550 350 13 2.3 -12.8 | 349 10 1.9 -9.9 7 326 7849 345 11 2.8 -10.6 | 342 8 2.5 -7.7 8 300 8370 335 13 5.5 -11.8 | 330 10 5.1 -8.8 9 250 9520 355 5 0.4 -5.0 | 359 2 0.0 -2.0 10 200 10930 245 3 2.7 1.3 | 209 5 2.3 4.2 11 150 12760 220 3 1.9 2.3 | 196 5 1.5 5.2 12 100 15350 225 13 9.2 9.2 | 216 15 8.8 12.1 13 70 17650 240 21 18.2 10.5 | 233 22 17.8 13.4 14 50 19850 240 29 25.1 14.5 | 235 30 24.7 17.4 15 30 23220 235 31 25.4 17.8 | 230 32 25.0 20.7 16 20 25940 215 36 20.6 29.5 | 212 38 20.3 32.4 Wind Parameters Mean winds (0-6000m): 322.5 at 3.9 knts Storm direction: 352.5 at 3.0 knts Shear (0-3000m) pos: 0.6 neg: 0.7 tot: 1.3 10-3/s Storm rel Dir Shear (0-3000m): 133.6 deg Storm rel helicity (0-3000m) pos: 7.0 neg: 0.0 tot: 7.0 m^2/s^2 ave: 2.3 10^-3 m/s^2 rel: 0.60 Storm rel vorticity (0-3000m) horiz: 2.1 stream: 1.3 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 83.19 Bulk Shear: 1.15 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 ------------------------------------------------------------------------------- 500 323 1 186 2| 0.0 1.0 1.0| 0.4 0.0 0.4 0.9 0.82| 1.0 0.8 1000 301 2 204 2| 0.0 2.1 2.1| 2.7 0.0 2.7 2.7 0.83| 2.3 1.9 1500 291 3 233 3| 0.8 1.4 2.2| 4.6 0.0 4.6 3.1 0.67| 2.6 1.8 2000 292 4 245 4| 0.5 1.1 1.6| 5.6 0.0 5.6 2.8 0.64| 2.3 1.5 2500 295 4 252 4| 0.4 0.9 1.3| 6.2 0.0 6.2 2.5 0.61| 2.1 1.3 3000 299 4 256 3| 0.6 0.7 1.3| 7.0 0.0 7.0 2.3 0.60| 2.1 1.3 4000 307 4 262 3| 0.7 0.5 1.2| 7.8 0.0 7.8 2.0 0.65| 2.1 1.3 5000 306 4 253 3| 0.6 0.4 1.0| 9.0 -0.0 9.0 1.8 0.66| 1.9 1.3 6000 322 4 276 2| 0.5 0.8 1.3| 9.0 -11.6 -2.6 -0.4 0.09| 2.5 0.2 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20251220.00.gif