UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2026011600.upa.cvt Date: 0000Z 16 JAN 26 Searching for U4688... Searching the city database file for: U4688 ... Date:0000Z 16 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 314 SFC 942 742 -30.5 -33.1 78 2.6 -30.7 60 1 246.8 246.9 246.4 247.5 0.25 2 925 873 -29.5 -33.5 68 4.0 -29.7 75 3 249.1 249.2 248.4 249.8 0.24 3 890 1148 -28.7 -32.7 68 4.0 -29.0 105 6 252.7 252.8 251.7 253.5 0.27 4 850 1480 -22.1 -25.7 73 3.6 -22.5 140 9 263.0 263.1 260.7 264.6 0.55 5 808 1858 -16.1 -19.5 75 3.4 -16.8 145 12 273.2 273.4 268.7 276.1 1.01 6 757 2353 -12.7 -15.9 77 3.2 -13.5 152 16 282.0 282.3 274.8 286.3 1.46 7 751 2414 -13.1 -16.5 76 3.4 -13.9 153 17 282.2 282.5 274.8 286.4 1.40 8 700 2947 -16.7 -31.7 26 15.0 -18.9 160 21 284.0 284.1 274.1 285.2 0.38 9 697 2979 -17.1 -32.1 26 15.0 -19.3 160 21 283.9 284.0 274.0 285.1 0.37 10 663 3351 -20.5 -36.5 23 16.0 -22.3 162 22 284.2 284.2 274.0 285.0 0.25 11 584 4280 -24.9 -45.9 12 21.0 -26.6 168 25 289.5 289.5 276.6 289.9 0.11 12 522 5086 -30.5 -57.5 5 27.0 -31.8 173 28 292.2 292.2 277.8 292.3 0.03 13 500 5390 -32.3 -49.3 17 17.0 -33.3 175 29 293.7 293.7 278.6 294.0 0.09 14 430 6438 -39.1 -47.1 42 8.0 -39.5 165 26 297.9 298.0 280.6 298.4 0.13 15 404 6863 -41.9 -49.9 41 8.0 -42.2 161 25 299.7 299.7 281.3 300.0 0.10 16 400 6930 -42.5 -50.5 41 8.0 -42.8 160 25 299.8 299.8 281.4 300.1 0.09 17 300 8800 -59.3 -67.3 35 8.0 -59.4 155 19 301.8 301.8 282.1 301.8 0.01 18 250 9920 -69.1 -77.1 30 8.0 -69.1 175 27 303.3 303.3 282.7 303.4 0.00 19 239 10186 -71.5 -78.5 34 7.0 -71.5 175 27 303.7 303.7 282.8 303.7 0.00 20 231 10388 -67.5 -74.5 36 7.0 -67.5 176 27 312.7 312.7 286.3 312.7 0.01 21 200 11260 -63.5 -70.5 38 7.0 -63.6 180 27 332.2 332.2 292.3 332.3 0.01 22 198 11322 -63.1 -70.1 38 7.0 -63.1 180 27 333.8 333.8 292.7 333.9 0.02 23 172 12187 -64.5 -71.5 38 7.0 -64.6 185 21 345.2 345.2 295.6 345.3 0.01 24 159 12675 -58.9 -66.9 35 8.0 -59.0 188 17 362.5 362.5 299.2 362.6 0.03 25 150 13040 -59.9 -67.9 34 8.0 -60.0 190 15 366.9 366.9 300.0 367.0 0.03 26 145 13252 -60.1 -68.1 34 8.0 -60.2 193 15 370.1 370.1 300.6 370.2 0.03 27 100 15620 -52.1 -64.1 22 12.0 -52.7 230 17 427.1 427.1 308.6 427.4 0.07 28 70 17950 -48.5 -66.5 11 18.0 -49.8 235 23 480.6 480.6 313.5 481.1 0.07 29 50 20180 -45.9 -68.9 6 23.0 -48.3 230 29 535.3 535.3 317.3 535.8 0.07 30 44 21029 -44.5 -69.5 5 25.0 -47.5 222 25 558.7 558.7 318.6 559.2 0.07 31 30 23580 -44.9 -70.9 4 26.0 -48.7 200 13 622.2 622.3 321.6 622.9 0.09 32 27 24285 -44.3 -70.3 4 26.0 -48.6 190 15 643.0 643.0 322.4 643.8 0.11 33 22 25642 -48.9 -73.9 4 25.0 -52.4 169 18 668.0 668.1 323.4 668.7 0.08 34 20 26270 -47.5 -73.5 3 26.0 -51.7 160 19 690.8 690.8 324.1 691.6 0.09 35 16 27747 -46.9 -72.9 4 26.0 -51.9 738.3 738.3 325.6 739.4 0.13 36 14 28627 -49.1 -74.1 4 25.0 -53.7 759.5 759.6 326.2 760.7 0.12 TRP 239 10186 -71.5 -78.5 34 7.0 -71.5 175 27 303.7 303.7 282.8 303.7 0.00 WND Sounding variables and indices 1000-500 mb thick: 5076.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.10 inches Sfc-500 mean rel hum: 39.60 % Est. max temperature: -1.93 C = 28.52 F Sfc-Lift cond lev (LCL): 901.39 mb = 1057.05 m = 3467.96 ft T: -28.96 C 700-500 lapse rate: 6.39 C/km ThetaE index: 1.38 C Layer 700.0- 584.0 mb Conv cond level (CCL): 942.00 mb = 742.25 m = 2435.16 ft Mean mixing ratio: 0.35 g/kg Conv temperature: -29.60 C = -21.28 F Cap Strength: 30.65 C Lifted Index: 31.43 C Risk: None Lifted Index @300 mb: 32.88 C Lifted Index @700 mb: 26.17 C Showalter Index: 23.96 C Risk: None Total Totals Index: 16.80 C Risk: None Vertical Totals Index: 10.20 C Cross Totals Index: 6.60 C K Index: -30.50 Risk: None Sweat Index: 47.00 Risk: None Energy Index: 6.39 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 70.26 J/kg Max Up Vert Vel: 11.85 m/s Conv Inhibition (B-): 77562.20 J/kg Cap Strength: 31.27 C Lift Cond Lev (LCL): 844.80 mb = 1525.81 m = 5005.89 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 195 at 16 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 ---------------------------------------------------------- 0 942 742 60 1 -0.9 -0.5 | 18 16 -4.9 -15.5 1 925 873 75 3 -2.9 -0.8 | 24 17 -6.9 -15.8 2 850 1480 140 9 -5.8 6.9 | 50 13 -9.8 -8.1 3 700 2947 160 21 -7.2 19.7 | 113 12 -11.2 4.7 4 500 5390 175 29 -2.5 28.9 | 155 15 -6.6 13.9 5 400 6930 160 25 -8.6 23.5 | 124 15 -12.6 8.5 6 300 8800 155 19 -8.0 17.2 | 100 12 -12.1 2.2 7 250 9920 175 27 -2.4 26.9 | 152 13 -6.4 11.9 8 239 10186 175 27 -2.4 26.9 | 152 13 -6.4 11.9 9 200 11260 180 27 0.0 27.0 | 161 13 -4.0 12.0 10 150 13040 190 15 2.6 14.8 | 81 1 -1.4 -0.2 11 100 15620 230 17 13.0 10.9 | 294 10 9.0 -4.1 12 70 17950 235 23 18.8 13.2 | 277 15 14.8 -1.8 13 50 20180 230 29 22.2 18.6 | 259 19 18.2 3.6 14 30 23580 200 13 4.4 12.2 | 352 3 0.4 -2.8 15 20 26270 160 19 -6.5 17.9 | 105 11 -10.5 2.8 Wind Parameters Mean winds (0-6000m): 165.1 at 20.7 knts Storm direction: 195.1 at 15.5 knts Shear (0-3000m) pos: 4.1 neg: 0.0 tot: 4.1 10-3/s Storm rel Dir Shear (0-3000m): 109.8 deg Storm rel helicity (0-3000m) pos: 90.9 neg: 0.0 tot: 90.9 m^2/s^2 ave: 30.3 10^-3 m/s^2 rel: 0.92 Storm rel vorticity (0-3000m) horiz: 4.7 stream: 4.4 10^-3/s Energy-Hel index: 0.03 Bulk Rich Number: 1.40 Bulk Shear: 50.16 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 98 4 29 17| 6.3 0.0 6.3| 28.7 0.0 28.7 57.3 0.92| 7.2 6.6 1000 130 6 39 14| 5.7 0.0 5.7| 46.5 0.0 46.5 46.5 0.85| 6.9 5.9 1500 139 9 49 13| 5.2 0.0 5.2| 60.2 0.0 60.2 40.1 0.89| 6.1 5.4 2000 147 11 59 12| 5.0 0.0 5.0| 74.4 0.0 74.4 37.2 0.91| 5.7 5.2 2500 152 13 69 11| 4.6 0.0 4.6| 84.2 0.0 84.2 33.7 0.92| 5.2 4.8 3000 155 14 78 10| 4.1 0.0 4.1| 90.9 0.0 90.9 30.3 0.92| 4.7 4.4 4000 160 17 96 10| 3.5 0.0 3.5|105.2 0.0 105.2 26.3 0.93| 4.1 3.8 5000 164 19 112 10| 3.0 0.1 3.1|114.6 -7.0 107.6 21.5 0.83| 3.7 3.1 6000 165 21 118 11| 2.5 0.6 3.0|114.6 -27.9 86.7 14.5 0.60| 3.5 2.1 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20260116.00.gif