UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2026011500.upa.cvt Date: 0000Z 15 JAN 26 Searching for U4688... Searching the city database file for: U4688 ... Date:0000Z 15 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 291 SFC 937 742 -39.5 -42.4 74 2.9 -39.6 180 1 238.0 238.1 237.8 238.3 0.10 2 925 832 -36.5 -39.3 75 2.8 -36.6 220 3 242.0 242.0 241.6 242.4 0.14 3 850 1424 -26.3 -29.3 76 3.0 -26.6 95 7 258.6 258.7 256.9 259.7 0.40 4 777 2090 -15.7 -18.9 76 3.2 -16.4 63 6 276.7 276.9 271.1 279.9 1.10 5 700 2872 -21.3 -24.4 76 3.1 -21.8 25 5 278.9 279.0 271.8 281.2 0.76 6 654 3368 -25.3 -28.5 75 3.2 -25.7 11 5 279.9 280.0 272.1 281.6 0.56 7 534 4819 -31.5 -34.7 73 3.2 -31.8 329 5 289.1 289.2 276.8 290.4 0.38 8 500 5280 -35.1 -38.4 72 3.3 -35.4 315 5 290.2 290.3 277.2 291.2 0.28 9 452 5977 -39.5 -42.9 70 3.4 -39.7 295 15 293.2 293.3 278.6 293.9 0.19 10 400 6800 -46.9 -49.9 71 3.0 -47.0 270 27 294.0 294.1 278.8 294.4 0.10 11 300 8640 -62.1 -65.2 66 3.1 -62.1 235 25 297.8 297.8 280.4 297.9 0.02 12 295 8744 -63.3 -66.7 63 3.4 -63.3 234 27 297.5 297.5 280.3 297.6 0.02 13 271 9267 -63.9 -67.4 62 3.5 -63.9 227 36 304.0 304.0 283.0 304.0 0.02 14 250 9760 -66.9 -70.0 65 3.1 -66.9 220 44 306.6 306.6 284.1 306.7 0.01 15 246 9857 -67.3 -70.5 64 3.2 -67.3 220 46 307.4 307.4 284.4 307.5 0.01 16 221 10513 -58.9 -62.5 63 3.6 -59.0 204 36 329.9 329.9 291.7 330.1 0.04 17 202 11069 -62.9 -66.3 63 3.4 -62.9 191 28 332.2 332.2 292.3 332.3 0.03 18 200 11130 -62.5 -65.9 63 3.4 -62.6 190 27 333.8 333.8 292.7 333.9 0.03 19 167 12257 -58.1 -61.7 63 3.6 -58.2 181 18 358.8 358.8 298.5 359.0 0.06 20 150 12930 -60.7 -64.2 63 3.5 -60.8 175 13 365.5 365.5 299.8 365.7 0.05 21 144 13182 -62.3 -65.7 64 3.4 -62.4 177 14 367.0 367.0 300.1 367.2 0.04 22 129 13870 -55.9 -59.5 64 3.6 -56.1 182 16 390.2 390.3 303.9 390.7 0.10 23 100 15480 -57.9 -61.7 62 3.8 -58.0 195 21 415.9 415.9 307.3 416.3 0.09 24 70 17760 -52.3 -56.1 63 3.8 -52.7 225 25 472.5 472.6 313.0 474.1 0.27 25 53 19583 -46.5 -50.3 65 3.8 -47.3 229 25 525.1 525.3 316.9 529.6 0.72 26 50 19970 -46.5 -50.2 66 3.7 -47.3 230 25 533.9 534.1 317.5 538.8 0.77 27 47 20379 -47.7 -51.6 64 3.9 -48.5 228 27 540.5 540.8 317.8 545.1 0.70 28 42 21126 -44.9 -48.8 65 3.9 -45.9 225 31 565.1 565.5 319.3 572.4 1.08 29 36 22150 -47.9 -51.7 65 3.8 -48.8 220 36 582.9 583.2 320.1 589.2 0.90 30 30 23360 -44.9 -48.7 66 3.8 -46.2 215 42 622.2 622.8 322.0 633.6 1.53 31 28 23818 -47.5 -51.2 66 3.7 -48.6 213 44 627.4 627.9 322.2 636.7 1.23 32 25 24572 -43.5 -47.4 65 3.9 -45.1 211 48 659.6 660.4 323.6 676.3 2.13 33 20 26060 -46.5 -49.9 68 3.4 -47.9 205 56 693.8 694.7 324.8 710.6 2.00 34 17 27146 -43.7 -47.4 67 3.7 -45.6 210 60 735.7 737.1 326.3 763.3 3.12 35 16 27554 -42.7 -46.5 66 3.8 -44.7 752.0 753.7 326.8 785.2 3.68 36 11 30093 -40.9 -46.9 52 6.0 -44.6 843.6 846.2 329.4 896.1 5.14 TRP 246 9857 -67.3 -70.5 64 3.2 -67.3 220 46 307.4 307.4 284.4 307.5 0.01 WND 17 27146 -43.7 -47.4 67 3.7 -45.6 210 60 735.7 737.1 326.3 763.3 3.12 Sounding variables and indices 1000-500 mb thick: 4989.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.15 inches Sfc-500 mean rel hum: 74.83 % Est. max temperature: -4.12 C = 24.59 F Sfc-Lift cond lev (LCL): 890.75 mb = 1096.15 m = 3596.24 ft T: -31.95 C 700-500 lapse rate: 5.73 C/km Conv cond level (CCL): 937.00 mb = 742.12 m = 2434.75 ft Mean mixing ratio: 0.27 g/kg Conv temperature: -32.21 C = -25.98 F Cap Strength: 31.73 C Lifted Index: 32.03 C Risk: None Lifted Index @300 mb: 33.04 C Lifted Index @700 mb: 25.20 C Showalter Index: 25.11 C Risk: None Total Totals Index: 14.60 C Risk: None Vertical Totals Index: 8.80 C Cross Totals Index: 5.80 C K Index: -23.60 Risk: None Sweat Index: 19.00 Risk: None Energy Index: 6.81 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 71.39 J/kg Max Up Vert Vel: 11.95 m/s Conv Inhibition (B-): 82483.90 J/kg Cap Strength: 32.03 C Lift Cond Lev (LCL): 862.71 mb = 1320.11 m = 4331.01 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 341 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 ---------------------------------------------------------- 0 937 742 180 1 0.0 1.0 | 164 7 -1.9 6.6 1 925 832 220 3 1.9 2.3 | 180 8 0.0 7.9 2 850 1424 95 7 -7.0 0.6 | 125 11 -8.9 6.2 3 700 2872 25 5 -2.1 -4.5 | 105 4 -4.0 1.1 4 500 5280 315 5 3.5 -3.5 | 219 3 1.7 2.1 5 400 6800 270 27 27.0 -0.0 | 257 26 25.1 5.6 6 300 8640 235 25 20.5 14.3 | 223 27 18.6 19.9 7 250 9760 220 44 28.3 33.7 | 214 47 26.4 39.3 8 246 9857 220 46 29.6 35.2 | 214 49 27.7 40.8 9 200 11130 190 27 4.7 26.6 | 185 32 2.8 32.2 10 150 12930 175 13 -1.1 13.0 | 171 19 -3.0 18.5 11 100 15480 195 21 5.4 20.3 | 188 26 3.6 25.9 12 70 17760 225 25 17.7 17.7 | 214 28 15.8 23.3 13 50 19970 230 25 19.2 16.1 | 219 28 17.3 21.7 14 30 23360 215 42 24.1 34.4 | 209 46 22.2 40.0 15 20 26060 205 56 23.7 50.8 | 201 60 21.8 56.3 Wind Parameters Mean winds (0-6000m): 311.4 at 7.9 knts Storm direction: 341.4 at 5.9 knts Shear (0-3000m) pos: 0.0 neg: 1.0 tot: 1.0 10-3/s Storm rel Dir Shear (0-3000m): -56.3 deg Storm rel helicity (0-3000m) pos: 4.1 neg: -35.9 tot: -31.8 m^2/s^2 ave: -10.6 10^-3 m/s^2 rel: -0.47 Storm rel vorticity (0-3000m) horiz: 4.0 stream: -1.9 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 4.18 Bulk Shear: 17.09 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 ------------------------------------------------------------------------------- 500 165 4 163 10| 0.0 5.3 5.3| 4.0 -15.9 -11.9 -23.7 -0.40| 9.7 -3.9 1000 106 5 135 10| 0.0 3.5 3.5| 4.0 -32.1 -28.1 -28.1 -0.60| 8.1 -4.8 1500 90 6 127 9| 0.0 2.2 2.2| 4.0 -35.1 -31.1 -20.7 -0.58| 6.3 -3.7 2000 80 6 122 9| 0.0 1.6 1.6| 4.0 -35.8 -31.8 -15.9 -0.54| 5.4 -2.9 2500 69 5 117 8| 0.0 1.2 1.2| 4.0 -35.9 -31.9 -12.8 -0.50| 4.6 -2.3 3000 58 5 113 7| 0.0 1.0 1.0| 4.1 -35.9 -31.8 -10.6 -0.47| 4.0 -1.9 4000 38 5 105 5| 0.0 0.8 0.8| 4.7 -35.9 -31.2 -7.8 -0.35| 3.4 -1.2 5000 12 6 94 3| 0.0 1.3 1.3| 8.6 -35.9 -27.3 -5.5 -0.15| 3.5 -0.5 6000 311 8 265 4| 0.0 2.2 2.2| 8.7 -60.7 -52.0 -8.7 -0.19| 4.5 -0.9 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20260115.00.gif