UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025102100.upa.cvt Date: 0000Z 21 OCT 25 Searching for U4688... Searching the city database file for: U4688 ... Date:0000Z 21 OCT 25 Station: U4688 WMO ident: 24688 Latitude: 63.27 Longitude: 143.15 ------------------------------------------------------------------------------- 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 ------------------------------------------------------------------------------- 0 1000 203 SFC 932 732 -17.7 -20.4 79 2.7 -18.1 30 1 260.6 260.8 259.3 262.9 0.81 2 925 789 -17.5 -20.6 77 3.1 -18.0 15 3 261.4 261.5 259.9 263.6 0.80 3 917 854 -18.1 -21.2 77 3.1 -18.6 12 4 261.4 261.6 259.9 263.6 0.77 4 893 1054 -14.5 -16.8 83 2.3 -15.0 5 5 267.2 267.3 264.9 270.4 1.15 5 850 1429 -15.5 -17.9 82 2.4 -16.0 350 9 269.9 270.1 266.7 273.0 1.10 6 821 1692 -15.7 -18.8 77 3.1 -16.3 354 9 272.4 272.6 268.2 275.4 1.05 7 700 2878 -25.3 -29.0 71 3.7 -25.8 10 9 274.5 274.6 268.6 276.0 0.50 8 666 3237 -27.3 -30.2 76 2.9 -27.6 11 12 276.2 276.2 269.7 277.6 0.47 9 627 3669 -27.7 -31.0 73 3.3 -28.0 12 16 280.5 280.6 272.3 281.9 0.46 10 568 4370 -32.5 -36.7 66 4.2 -32.9 13 23 282.9 283.0 273.3 283.8 0.29 11 500 5260 -35.7 -40.1 64 4.4 -36.0 15 31 289.5 289.6 276.8 290.3 0.23 12 494 5344 -35.9 -40.4 63 4.5 -36.2 15 32 290.3 290.3 277.2 291.0 0.23 13 400 6780 -45.1 -49.8 59 4.7 -45.3 15 42 296.4 296.4 279.9 296.7 0.10 14 379 7139 -48.3 -53.3 56 5.0 -48.4 15 41 296.8 296.8 280.0 297.0 0.07 15 346 7739 -49.5 -54.5 56 5.0 -49.6 15 39 303.0 303.0 282.7 303.2 0.07 16 306 8534 -56.1 -61.1 53 5.0 -56.2 15 36 304.5 304.5 283.2 304.7 0.03 17 300 8660 -56.5 -61.5 53 5.0 -56.6 15 36 305.7 305.7 283.7 305.8 0.03 18 283 9029 -57.9 -62.9 53 5.0 -58.0 15 38 308.8 308.8 284.9 308.9 0.03 19 258 9612 -58.9 -63.9 52 5.0 -59.0 19 21 315.6 315.6 287.3 315.8 0.03 20 250 9810 -58.3 -63.3 53 5.0 -58.4 20 15 319.4 319.4 288.6 319.5 0.03 21 210 10923 -50.9 -56.9 49 6.0 -51.1 20 13 347.3 347.3 296.1 347.6 0.08 22 200 11240 -50.9 -56.9 49 6.0 -51.1 20 13 352.2 352.2 297.2 352.5 0.09 23 172 12211 -53.5 -61.5 37 8.0 -53.7 2 11 363.4 363.4 299.4 363.6 0.06 24 161 12638 -48.9 -57.9 34 9.0 -49.3 354 10 378.1 378.1 302.0 378.5 0.10 25 150 13100 -49.7 -58.7 34 9.0 -50.1 345 9 384.4 384.5 303.0 384.9 0.09 26 132 13926 -53.5 -64.5 25 11.0 -53.9 339 9 392.0 392.0 304.1 392.2 0.05 27 127 14175 -50.1 -62.1 23 12.0 -50.7 337 9 402.5 402.5 305.6 402.8 0.07 28 100 15720 -53.1 -67.1 17 14.0 -53.7 325 9 425.1 425.1 308.3 425.4 0.05 29 70 18020 -54.9 -70.9 12 16.0 -55.6 100 3 466.9 466.9 312.4 467.2 0.04 30 53 19797 -54.9 -72.9 9 18.0 -55.8 212 6 505.6 505.6 315.4 505.8 0.04 31 50 20170 -53.9 -71.9 9 18.0 -54.9 235 7 516.5 516.5 316.1 516.8 0.05 32 31 23266 -49.5 -71.5 6 22.0 -52.0 216 22 604.0 604.0 320.8 604.6 0.08 33 30 23480 -50.9 -72.9 6 22.0 -53.1 215 23 605.9 605.9 320.9 606.4 0.07 34 20 26140 -48.1 -74.1 3 26.0 -52.1 230 36 688.9 689.0 324.1 689.7 0.08 35 19 26477 -49.1 -74.1 4 25.0 -52.8 696.0 696.1 324.3 696.8 0.09 36 16 27613 -45.9 -71.9 4 26.0 -51.2 741.5 741.6 325.7 742.9 0.15 37 13 28993 -46.7 -72.7 4 26.0 -52.4 784.1 784.2 326.9 785.7 0.16 38 12 29528 -43.5 -69.5 4 26.0 -50.8 813.6 813.8 327.6 816.4 0.27 39 11 30110 -45.9 -71.9 4 26.0 -52.5 825.4 825.5 327.9 827.6 0.21 TRP 283 9029 -57.9 -62.9 53 5.0 -58.0 15 38 308.8 308.8 284.9 308.9 0.03 WND Sounding variables and indices 1000-500 mb thick: 5057.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.13 inches Sfc-500 mean rel hum: 72.85 % Est. max temperature: -5.53 C = 22.04 F Sfc-Lift cond lev (LCL): 891.61 mb = 1066.36 m = 3498.51 ft T: -14.53 C 700-500 lapse rate: 4.37 C/km ThetaE index: 0.05 C Layer 917.0- 893.0 mb Conv cond level (CCL): 932.00 mb = 732.32 m = 2402.60 ft Mean mixing ratio: 1.03 g/kg Conv temperature: -17.59 C = 0.35 F Cap Strength: 11.54 C Lifted Index: 16.37 C Risk: None Lifted Index @300 mb: 25.45 C Lifted Index @700 mb: 5.38 C Showalter Index: 13.73 C Risk: None Total Totals Index: 38.00 C Risk: None Vertical Totals Index: 20.20 C Cross Totals Index: 17.80 C K Index: -1.40 Risk: None Sweat Index: 49.00 Risk: None Energy Index: 3.57 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 45.30 J/kg Max Up Vert Vel: 9.52 m/s Conv Inhibition (B-): 68977.77 J/kg Cap Strength: 15.95 C Lift Cond Lev (LCL): 845.65 mb = 1467.89 m = 4815.85 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 42 at 15 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 ---------------------------------------------------------- 0 932 732 30 1 -0.5 -0.9 | 223 14 9.7 10.2 1 925 789 15 3 -0.8 -2.9 | 229 12 9.4 8.2 2 850 1429 350 9 1.6 -8.9 | 259 12 11.7 2.2 3 700 2878 10 9 -1.6 -8.9 | 255 9 8.6 2.2 4 500 5260 15 31 -8.0 -29.9 | 354 19 2.1 -18.8 5 400 6780 15 42 -10.9 -40.6 | 1 29 -0.7 -29.5 6 300 8660 15 36 -9.3 -34.8 | 358 24 0.8 -23.7 7 283 9029 15 38 -9.8 -36.7 | 359 26 0.3 -25.6 8 250 9810 20 15 -5.1 -14.1 | 301 6 5.0 -3.0 9 200 11240 20 13 -4.4 -12.2 | 281 6 5.7 -1.1 10 150 13100 345 9 2.3 -8.7 | 259 13 12.5 2.4 11 100 15720 325 9 5.2 -7.4 | 256 16 15.3 3.7 12 70 18020 100 3 -3.0 0.5 | 212 14 7.2 11.6 13 50 20170 235 7 5.7 4.0 | 226 22 15.9 15.1 14 30 23480 215 23 13.2 18.8 | 218 38 23.4 29.9 15 20 26140 230 36 27.6 23.1 | 228 51 37.7 34.2 Wind Parameters Mean winds (0-6000m): 12.5 at 20.1 knts Storm direction: 42.5 at 15.1 knts Shear (0-3000m) pos: 1.5 neg: 1.4 tot: 2.9 10-3/s Storm rel Dir Shear (0-3000m): 85.6 deg Storm rel helicity (0-3000m) pos: 39.3 neg: -1.6 tot: 37.7 m^2/s^2 ave: 12.6 10^-3 m/s^2 rel: 0.73 Storm rel vorticity (0-3000m) horiz: 3.4 stream: 2.5 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 1.44 Bulk Shear: 31.47 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 4 5 237 12| 0.0 6.5 6.5| 16.9 0.0 16.9 33.8 0.83| 6.7 5.5 1000 355 7 247 12| 0.0 4.2 4.2| 22.9 -0.1 22.8 22.8 0.79| 4.8 3.8 1500 356 7 251 11| 0.4 2.8 3.2| 22.9 -0.6 22.3 14.9 0.69| 3.6 2.5 2000 358 8 253 11| 0.6 2.1 2.7| 22.9 -1.4 21.5 10.8 0.60| 2.9 1.8 2500 1 8 254 10| 0.9 1.7 2.6| 29.7 -1.6 28.1 11.2 0.66| 3.1 2.0 3000 4 9 259 10| 1.5 1.4 2.9| 39.3 -1.6 37.7 12.6 0.73| 3.4 2.5 4000 8 12 278 8| 2.3 1.1 3.4| 59.4 -1.6 57.8 14.4 0.73| 3.7 2.7 5000 11 16 304 8| 2.7 0.8 3.5| 77.0 -1.6 75.4 15.1 0.67| 3.8 2.6 6000 12 20 326 10| 2.2 1.3 3.5| 90.3 -1.6 88.7 14.8 0.60| 3.8 2.3 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20251021.00.gif