UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2026011200.upa.cvt Date: 0000Z 12 JAN 26 Searching for U4688... Searching the city database file for: U4688 ... Date:0000Z 12 JAN 26 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 927 743 -32.5 -35.4 75 2.9 -32.7 60 1 245.9 246.0 245.5 246.5 0.20 2 925 758 -33.1 -36.4 72 3.3 -33.3 75 1 245.5 245.5 245.0 246.0 0.18 3 923 773 -33.3 -36.7 71 3.4 -33.5 77 1 245.4 245.4 244.9 245.9 0.18 4 918 811 -30.7 -34.1 72 3.4 -30.9 81 2 248.5 248.5 247.8 249.1 0.23 5 852 1342 -21.9 -24.9 77 3.0 -22.3 138 15 263.0 263.1 260.7 264.7 0.59 6 850 1359 -21.9 -24.9 77 3.0 -22.3 140 15 263.2 263.3 260.9 264.9 0.60 7 794 1870 -16.9 -19.8 78 2.9 -17.4 159 19 273.7 273.9 269.1 276.6 1.00 8 700 2811 -23.5 -26.4 77 2.9 -23.9 195 27 276.5 276.6 270.1 278.3 0.63 9 676 3064 -25.5 -28.5 76 3.0 -25.9 193 28 277.0 277.1 270.3 278.6 0.54 10 571 4273 -30.7 -33.7 75 3.0 -31.0 183 35 284.6 284.7 274.5 285.8 0.39 11 500 5200 -37.5 -40.3 75 2.8 -37.7 175 40 287.3 287.4 275.6 288.1 0.23 12 400 6700 -49.5 -52.5 71 3.0 -49.6 190 50 290.7 290.7 277.1 290.9 0.07 13 342 7690 -60.5 -63.5 68 3.0 -60.5 190 55 289.0 289.0 276.2 289.1 0.02 14 300 8490 -64.7 -67.8 65 3.1 -64.7 190 60 294.1 294.1 278.7 294.2 0.01 15 289 8721 -67.7 -70.5 67 2.8 -67.7 190 62 293.0 293.0 278.2 293.1 0.01 16 283 8849 -67.8 -70.7 67 2.9 -67.9 195 64 294.6 294.6 278.9 294.6 0.01 17 281 8892 -67.9 -70.8 66 2.9 -67.9 195 64 295.1 295.1 279.1 295.1 0.01 18 250 9610 -66.1 -69.1 66 3.0 -66.1 195 64 307.8 307.8 284.5 307.9 0.01 19 233 10037 -66.3 -69.3 66 3.0 -66.3 197 59 313.8 313.8 286.6 313.8 0.01 20 211 10646 -60.5 -63.6 67 3.1 -60.6 199 52 331.8 331.8 292.3 332.0 0.03 21 200 10980 -59.7 -62.9 66 3.2 -59.7 200 48 338.2 338.2 293.9 338.4 0.04 22 150 12780 -58.3 -61.4 67 3.1 -58.4 200 36 369.6 369.6 300.5 369.9 0.07 23 138 13306 -58.7 -61.9 66 3.2 -58.8 199 40 377.9 377.9 301.9 378.2 0.07 24 130 13686 -54.9 -58.2 67 3.3 -55.1 198 42 391.2 391.2 304.0 391.7 0.11 25 118 14306 -56.3 -59.4 68 3.1 -56.4 197 47 399.6 399.6 305.2 400.1 0.11 26 100 15370 -52.3 -55.4 69 3.1 -52.5 195 54 426.7 426.7 308.6 427.8 0.21 27 91 15984 -49.5 -52.9 67 3.4 -49.8 195 57 443.9 444.0 310.4 445.6 0.31 28 87 16282 -43.9 -47.4 68 3.5 -44.5 195 59 460.9 461.1 312.1 464.2 0.61 29 76 17198 -39.5 -43.2 68 3.7 -40.5 195 63 488.3 488.6 314.5 494.6 1.11 30 70 17760 -40.1 -43.7 68 3.6 -41.1 195 66 498.6 498.9 315.3 505.2 1.14 31 65 18264 -41.9 -45.2 70 3.3 -42.7 505.3 505.7 315.8 511.5 1.04 TRP 289 8721 -67.7 -70.5 67 2.8 -67.7 190 62 293.0 293.0 278.2 293.1 0.01 WND 283 8849 -67.8 -70.7 67 2.9 -67.9 195 64 294.6 294.6 278.9 294.6 0.01 Sounding variables and indices 1000-500 mb thick: 4997.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.12 inches Sfc-500 mean rel hum: 75.85 % Est. max temperature: -4.82 C = 23.32 F Sfc-Lift cond lev (LCL): 882.26 mb = 1093.42 m = 3587.29 ft T: -26.02 C 700-500 lapse rate: 5.86 C/km ThetaE index: 0.58 C Layer 925.0- 918.0 mb Conv cond level (CCL): 927.00 mb = 742.65 m = 2436.48 ft Mean mixing ratio: 0.46 g/kg Conv temperature: -26.81 C = -16.25 F Cap Strength: 22.22 C Lifted Index: 23.53 C Risk: None Lifted Index @300 mb: 25.13 C Lifted Index @700 mb: 16.50 C Showalter Index: 18.50 C Risk: None Total Totals Index: 28.20 C Risk: None Vertical Totals Index: 15.60 C Cross Totals Index: 12.60 C K Index: -12.20 Risk: None Sweat Index: 70.00 Risk: None Energy Index: 5.00 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 65.05 J/kg Max Up Vert Vel: 11.41 m/s Conv Inhibition (B-): 35375.10 J/kg Cap Strength: 23.43 C Lift Cond Lev (LCL): 845.88 mb = 1395.42 m = 4578.09 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 211 at 23 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 ---------------------------------------------------------- 0 927 743 60 1 -0.9 -0.5 | 32 24 -13.0 -20.5 1 925 758 75 1 -1.0 -0.3 | 33 24 -13.1 -20.3 2 850 1359 140 15 -9.6 11.5 | 69 23 -21.7 -8.5 3 700 2811 195 27 7.0 26.1 | 140 8 -5.1 6.1 4 500 5200 175 40 -3.5 39.8 | 142 25 -15.6 19.9 5 400 6700 190 50 8.7 49.2 | 173 29 -3.4 29.2 6 300 8490 190 60 10.4 59.1 | 178 39 -1.7 39.1 7 289 8721 190 62 10.8 61.1 | 178 41 -1.3 41.1 8 283 8849 195 64 16.6 61.8 | 186 42 4.5 41.8 9 250 9610 195 64 16.6 61.8 | 186 42 4.5 41.8 10 200 10980 200 48 16.4 45.1 | 190 25 4.3 25.1 11 150 12780 200 36 12.3 33.8 | 181 14 0.2 13.8 12 100 15370 195 54 14.0 52.2 | 183 32 1.9 32.2 13 70 17760 195 66 17.1 63.8 | 187 44 5.0 43.8 Wind Parameters Mean winds (0-6000m): 181.2 at 31.2 knts Storm direction: 211.2 at 23.4 knts Shear (0-3000m) pos: 4.7 neg: 1.1 tot: 5.7 10-3/s Storm rel Dir Shear (0-3000m): 113.4 deg Storm rel helicity (0-3000m) pos: 184.7 neg: 0.0 tot: 184.7 m^2/s^2 ave: 61.6 10^-3 m/s^2 rel: 0.74 Storm rel vorticity (0-3000m) horiz: 8.1 stream: 6.0 10^-3/s Energy-Hel index: 0.07 Bulk Rich Number: 0.62 Bulk Shear: 105.26 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 ------------------------------------------------------------------------------- 500 124 6 47 24| 12.3 0.0 12.3| 85.5 0.0 85.5 171.0 0.95| 13.5 12.9 1000 143 11 59 22| 9.4 0.0 9.4|133.0 0.0 133.0 133.0 0.91| 11.5 10.5 1500 154 14 68 20| 7.8 0.0 7.8|159.4 0.0 159.4 106.2 0.86| 10.4 8.9 2000 168 17 76 16| 7.0 0.0 7.0|179.6 0.0 179.6 89.8 0.83| 10.1 8.4 2500 176 19 84 13| 5.6 0.6 6.2|183.8 0.0 183.8 73.5 0.80| 8.9 7.1 3000 180 21 93 12| 4.7 1.1 5.7|184.7 0.0 184.7 61.6 0.74| 8.1 6.0 4000 181 24 110 13| 3.5 1.7 5.2|184.7 -3.4 181.3 45.3 0.63| 7.0 4.4 5000 179 28 122 15| 3.2 1.7 5.0|219.6 -7.3 212.3 42.5 0.61| 6.5 4.0 6000 181 31 134 16| 3.4 1.4 4.9|291.0 -7.3 283.6 47.3 0.66| 6.3 4.1 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20260112.00.gif