UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122900.upa.cvt Date: 0000Z 29 DEC 25 Searching for U4641... Searching the city database file for: U4641 ... Date:0000Z 29 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 112 -37.5 -41.6 65 4.1 -37.6 265 1 235.3 235.3 235.2 235.6 0.10 1 1000 146 -37.3 -41.6 64 4.3 -37.4 255 1 235.9 235.9 235.7 236.1 0.10 2 991 209 -37.5 -42.0 63 4.5 -37.7 260 3 236.3 236.3 236.1 236.5 0.10 3 990 216 -34.9 -39.4 63 4.5 -35.1 260 3 238.9 239.0 238.7 239.3 0.13 4 958 448 -31.9 -36.4 64 4.5 -32.1 277 11 244.2 244.3 243.8 244.7 0.18 5 925 699 -27.7 -31.9 67 4.2 -28.0 295 19 251.0 251.0 250.2 251.8 0.29 6 850 1310 -24.3 -27.9 72 3.6 -24.7 310 11 260.7 260.8 258.6 262.0 0.45 7 843 1370 -24.1 -27.7 72 3.6 -24.5 309 11 261.5 261.6 259.3 262.8 0.47 8 742 2298 -25.9 -29.1 74 3.2 -26.2 286 12 269.3 269.4 265.1 270.6 0.46 9 700 2718 -28.7 -32.4 70 3.7 -29.0 275 13 270.7 270.8 265.8 271.8 0.36 10 580 4045 -35.9 -39.8 67 3.9 -36.1 255 13 277.2 277.3 269.8 277.9 0.21 11 500 5060 -43.7 -48.2 61 4.5 -43.9 240 13 279.8 279.8 271.2 280.1 0.10 12 415 6284 -53.1 -57.5 59 4.4 -53.2 227 23 283.0 283.0 272.9 283.1 0.04 13 400 6520 -54.5 -58.8 59 4.3 -54.6 225 25 284.2 284.2 273.6 284.3 0.03 14 342 7510 -59.9 -64.1 58 4.2 -59.9 245 13 289.8 289.8 276.6 289.9 0.02 15 300 8330 -59.1 -63.4 57 4.3 -59.2 255 15 302.0 302.0 282.3 302.1 0.03 16 268 9035 -60.1 -64.3 58 4.2 -60.2 252 10 310.5 310.5 285.5 310.6 0.03 17 250 9470 -58.1 -62.5 57 4.4 -58.2 250 7 319.7 319.7 288.7 319.8 0.03 18 223 10191 -55.5 -59.9 58 4.4 -55.6 247 8 334.3 334.3 292.9 334.5 0.05 19 200 10880 -56.3 -61.1 55 4.8 -56.4 245 9 343.6 343.6 295.3 343.8 0.05 20 150 12710 -56.1 -62.1 47 6.0 -56.3 190 15 373.4 373.4 301.2 373.7 0.06 21 100 15300 -56.3 -64.3 36 8.0 -56.6 215 15 418.9 419.0 307.6 419.3 0.07 22 70 17570 -53.9 -63.9 28 10.0 -54.5 215 31 469.1 469.1 312.6 469.7 0.10 23 66 17948 -53.1 -63.1 29 10.0 -53.8 213 33 478.8 478.8 313.4 479.5 0.12 24 60 18560 -55.1 -66.1 24 11.0 -55.8 210 37 487.5 487.6 314.1 488.1 0.09 25 50 19730 -52.7 -64.7 22 12.0 -53.7 205 44 519.3 519.3 316.3 520.1 0.13 26 46 20272 -52.5 -64.5 22 12.0 -53.6 204 52 532.3 532.3 317.1 533.2 0.14 27 43 20713 -49.3 -63.3 18 14.0 -51.0 204 59 550.5 550.6 318.2 551.8 0.18 28 39 21353 -51.3 -65.3 17 14.0 -52.8 203 69 561.1 561.1 318.8 562.1 0.15 29 33 22471 -39.9 -56.9 15 17.0 -44.4 201 85 618.8 619.0 321.6 622.8 0.53 30 30 23120 -43.1 -62.1 11 19.0 -47.1 200 95 627.1 627.3 321.9 629.5 0.30 31 28 23582 -44.9 -63.9 10 19.0 -48.6 202 98 634.6 634.7 322.2 636.6 0.25 32 23 24902 -41.7 -63.7 7 22.0 -47.1 207 105 680.8 680.9 323.9 683.5 0.32 33 20 25840 -45.5 -69.5 5 24.0 -50.2 210 110 696.9 697.0 324.4 698.3 0.16 34 19 26181 -46.3 -70.3 5 24.0 -50.9 704.7 704.8 324.6 706.1 0.15 35 18 26546 -40.1 -66.1 5 26.0 -47.3 735.3 735.4 325.6 738.0 0.29 TRP 342 7510 -59.9 -64.1 58 4.2 -59.9 245 13 289.8 289.8 276.6 289.9 0.02 WND Sounding variables and indices 1000-500 mb thick: 4914.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.07 inches Sfc-500 mean rel hum: 68.59 % Est. max temperature: -12.77 C = 9.01 F Sfc-Lift cond lev (LCL): 935.88 mb = 615.22 m = 2018.41 ft T: -29.10 C 700-500 lapse rate: 6.40 C/km ThetaE index: 0.00 C Layer 1005.0--2403244174546658090678512915595657216.0 mb Conv cond level (CCL): 1000.00 mb = 146.00 m = 479.00 ft Mean mixing ratio: 0.20 g/kg Conv temperature: -34.27 C = -29.69 F Cap Strength: 27.13 C Lifted Index: 28.06 C Risk: None Lifted Index @300 mb: 40.02 C Lifted Index @700 mb: 22.84 C Showalter Index: 14.64 C Risk: None Total Totals Index: 35.20 C Risk: None Vertical Totals Index: 19.40 C Cross Totals Index: 15.80 C K Index: -12.20 Risk: None Sweat Index: 35.00 Risk: None Energy Index: 3.88 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 71.46 J/kg Max Up Vert Vel: 11.95 m/s Conv Inhibition (B-): 63800.48 J/kg Cap Strength: 28.00 C Lift Cond Lev (LCL): 896.17 mb = 927.82 m = 3043.99 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 296 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 1005 112 265 1 1.0 0.1 | 119 9 -8.1 4.4 1 1000 146 255 1 1.0 0.3 | 120 9 -8.1 4.6 2 925 699 295 19 17.2 -8.0 | 294 9 8.1 -3.7 3 850 1310 310 11 8.4 -7.1 | 13 3 -0.6 -2.7 4 700 2718 275 13 13.0 -1.1 | 230 5 3.9 3.2 5 500 5060 240 13 11.3 6.5 | 191 11 2.2 10.9 6 400 6520 225 25 17.7 17.7 | 201 24 8.6 22.0 7 342 7510 245 13 11.8 5.5 | 195 10 2.7 9.8 8 300 8330 255 15 14.5 3.9 | 213 10 5.4 8.2 9 250 9470 250 7 6.6 2.4 | 160 7 -2.5 6.7 10 200 10880 245 9 8.2 3.8 | 174 8 -0.9 8.2 11 150 12710 190 15 2.6 14.8 | 161 20 -6.5 19.1 12 100 15300 215 15 8.6 12.3 | 178 17 -0.5 16.6 13 70 17570 215 31 17.8 25.4 | 196 31 8.7 29.7 14 50 19730 205 44 18.6 39.9 | 192 45 9.5 44.2 15 30 23120 200 95 32.5 89.3 | 194 97 23.4 93.6 16 20 25840 210 110 55.0 95.3 | 205 110 45.9 99.6 Wind Parameters Mean winds (0-6000m): 265.6 at 13.4 knts Storm direction: 295.6 at 10.1 knts Shear (0-3000m) pos: 2.2 neg: 1.4 tot: 3.6 10-3/s Storm rel Dir Shear (0-3000m): 102.0 deg Storm rel helicity (0-3000m) pos: 29.8 neg: -5.2 tot: 24.6 m^2/s^2 ave: 8.2 10^-3 m/s^2 rel: 0.41 Storm rel vorticity (0-3000m) horiz: 6.4 stream: 2.6 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 12.52 Bulk Shear: 5.71 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 ------------------------------------------------------------------------------- 500 287 8 146 2| 15.7 0.0 15.7| 17.6 0.0 17.6 35.2 0.83| 17.0 14.1 1000 296 12 300 2| 6.6 0.0 6.6| 27.7 0.0 27.7 27.7 0.76| 13.3 10.1 1500 299 12 316 2| 4.4 0.8 5.2| 29.8 -0.7 29.1 19.4 0.69| 10.3 7.2 2000 298 12 312 2| 3.3 0.9 4.2| 29.8 -1.9 27.9 13.9 0.56| 8.4 4.7 2500 295 12 292 2| 2.6 1.3 3.9| 29.8 -3.4 26.4 10.5 0.47| 7.3 3.4 3000 291 12 272 2| 2.2 1.4 3.6| 29.8 -5.2 24.6 8.2 0.41| 6.4 2.6 4000 284 12 245 3| 1.7 1.5 3.1| 29.8 -9.4 20.4 5.1 0.32| 5.3 1.7 5000 276 13 228 5| 1.3 1.5 2.8| 30.2 -14.5 15.7 3.1 0.26| 4.6 1.2 6000 266 13 219 7| 1.1 1.9 3.0| 38.4 -14.5 24.0 4.0 0.25| 4.6 1.2 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20251229.00.gif