UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2026010800.upa.cvt Date: 0000Z 8 JAN 26 Searching for U4688... Searching the city database file for: U4688 ... Date:0000Z 8 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 169 1 925 695 190 1 SFC 919 739 -44.3 -47.3 72 3.0 -44.3 190 1 234.4 234.5 234.3 234.6 0.06 3 850 1276 -33.9 -37.4 71 3.5 -34.1 150 9 250.6 250.7 249.6 251.1 0.18 4 799 1715 -26.5 -30.2 71 3.7 -26.9 164 13 263.0 263.1 260.3 264.1 0.39 5 736 2302 -29.9 -33.6 70 3.7 -30.2 183 18 265.5 265.6 262.0 266.4 0.30 6 700 2659 -29.5 -33.3 70 3.8 -29.8 195 21 269.8 269.9 265.2 270.8 0.33 7 693 2731 -29.5 -33.3 70 3.8 -29.8 194 21 270.6 270.6 265.7 271.6 0.33 8 608 3657 -32.7 -36.3 70 3.6 -33.0 178 22 277.2 277.3 270.0 278.1 0.28 9 500 5010 -40.7 -44.1 70 3.4 -40.9 155 23 283.4 283.4 273.4 283.9 0.15 10 404 6416 -50.5 -53.8 68 3.3 -50.6 150 27 288.5 288.5 276.0 288.8 0.06 11 400 6480 -50.7 -54.0 68 3.3 -50.8 150 27 289.1 289.1 276.3 289.3 0.06 12 300 8330 -59.5 -62.9 64 3.4 -59.5 170 27 301.5 301.5 282.0 301.6 0.03 13 297 8393 -59.9 -63.3 64 3.4 -59.9 170 27 301.8 301.8 282.1 301.9 0.03 14 250 9480 -55.5 -58.9 66 3.4 -55.6 195 19 323.6 323.6 289.9 323.8 0.05 15 200 10910 -52.5 -55.8 67 3.3 -52.6 205 23 349.6 349.7 296.7 350.1 0.10 16 186 11381 -50.7 -54.1 67 3.4 -50.8 206 24 359.9 359.9 298.8 360.4 0.13 17 160 12360 -51.3 -54.6 68 3.3 -51.5 209 26 374.7 374.7 301.5 375.4 0.14 18 150 12780 -49.9 -53.4 66 3.5 -50.1 210 27 384.1 384.1 303.0 384.9 0.18 19 102 15328 -44.9 -48.5 67 3.6 -45.4 220 37 438.5 438.6 310.0 440.9 0.46 20 100 15460 -45.3 -48.9 67 3.6 -45.8 220 38 440.2 440.3 310.1 442.5 0.45 21 83 16711 -41.9 -45.5 68 3.6 -42.6 225 43 471.2 471.4 313.1 475.6 0.79 22 70 17860 -43.3 -47.1 66 3.8 -44.1 230 48 491.8 492.0 314.7 496.3 0.78 23 50 20140 -41.3 -44.9 68 3.6 -42.4 220 52 546.1 546.6 318.3 555.1 1.40 24 30 23590 -42.5 -46.4 66 3.9 -44.0 225 62 628.8 629.5 322.4 643.6 1.98 25 25 24824 -41.9 -45.7 66 3.8 -43.6 218 64 664.2 665.2 323.9 684.4 2.57 26 20 26330 -43.7 -47.6 65 3.9 -45.4 210 66 702.4 703.5 325.2 724.3 2.60 27 15 28247 -47.7 -51.9 62 4.2 -49.5 749.4 750.3 326.4 768.6 2.12 28 13 29197 -45.3 -50.0 59 4.7 -47.6 255 75 789.1 790.6 327.7 818.4 3.06 29 12 29733 -43.9 -48.9 58 5.0 -46.7 812.2 814.1 328.4 849.2 3.75 TRP 297 8393 -59.9 -63.3 64 3.4 -59.9 170 27 301.8 301.8 282.1 301.9 0.03 WND 13 29197 -45.3 -50.0 59 4.7 -47.6 255 75 789.1 790.6 327.7 818.4 3.06 Sounding variables and indices 1000-500 mb thick: 4841.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.11 inches Sfc-500 mean rel hum: 70.22 % Est. max temperature: -15.27 C = 4.51 F Sfc-Lift cond lev (LCL): 871.18 mb = 1106.57 m = 3630.45 ft T: -37.18 C 700-500 lapse rate: 4.76 C/km ThetaE index: 0.00 C Layer 919.0- 0.0 mb Conv cond level (CCL): 919.00 mb = 738.81 m = 2423.88 ft Mean mixing ratio: 0.16 g/kg Conv temperature: -38.03 C = -36.45 F Cap Strength: 26.46 C Lifted Index: 30.06 C Risk: None Lifted Index @300 mb: 38.74 C Lifted Index @700 mb: 20.93 C Showalter Index: 26.49 C Risk: None Total Totals Index: 10.10 C Risk: None Vertical Totals Index: 6.80 C Cross Totals Index: 3.30 C K Index: -34.40 Risk: None Sweat Index: 41.00 Risk: None Energy Index: 7.06 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 84.49 J/kg Max Up Vert Vel: 13.00 m/s Conv Inhibition (B-): 77739.80 J/kg Cap Strength: 29.76 C Lift Cond Lev (LCL): 838.62 mb = 1371.64 m = 4500.08 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 196 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 ---------------------------------------------------------- 0 919 739 190 1 0.2 1.0 | 17 14 -4.0 -13.3 1 850 1276 150 9 -4.5 7.8 | 53 11 -8.7 -6.5 2 700 2659 195 21 5.4 20.3 | 192 6 1.3 6.0 3 500 5010 155 23 -9.7 20.8 | 115 15 -13.9 6.5 4 400 6480 150 27 -13.5 23.4 | 117 20 -17.7 9.1 5 300 8330 170 27 -4.7 26.6 | 144 15 -8.9 12.3 6 297 8393 170 27 -4.7 26.6 | 144 15 -8.9 12.3 7 250 9480 195 19 4.9 18.4 | 190 4 0.7 4.0 8 200 10910 205 23 9.7 20.8 | 220 9 5.5 6.5 9 150 12780 210 27 13.5 23.4 | 226 13 9.3 9.1 10 100 15460 220 38 24.4 29.1 | 234 25 20.2 14.8 11 70 17860 230 48 36.8 30.9 | 243 37 32.6 16.5 12 50 20140 220 52 33.4 39.8 | 229 39 29.2 25.5 13 30 23590 225 62 43.8 43.8 | 233 49 39.7 29.5 14 20 26330 210 66 33.0 57.2 | 214 52 28.8 42.8 Wind Parameters Mean winds (0-6000m): 166.3 at 19.9 knts Storm direction: 196.3 at 14.9 knts Shear (0-3000m) pos: 2.7 neg: 2.2 tot: 4.9 10-3/s Storm rel Dir Shear (0-3000m): 127.4 deg Storm rel helicity (0-3000m) pos: 44.6 neg: -11.4 tot: 33.2 m^2/s^2 ave: 11.1 10^-3 m/s^2 rel: 0.49 Storm rel vorticity (0-3000m) horiz: 5.5 stream: 2.7 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 2.73 Bulk Shear: 31.00 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 ------------------------------------------------------------------------------- 500 154 5 32 12| 0.0 7.9 7.9| 18.0 0.0 18.0 36.0 0.77| 8.4 6.4 1000 157 8 44 10| 2.6 3.9 6.6| 29.1 0.0 29.1 29.1 0.79| 7.0 5.5 1500 168 10 55 8| 3.7 2.6 6.3| 37.6 0.0 37.6 25.1 0.82| 6.8 5.5 2000 180 12 66 5| 4.0 2.0 6.0| 44.6 -0.4 44.3 22.1 0.83| 6.6 5.4 2500 182 14 86 4| 3.2 2.1 5.3| 44.6 -5.6 39.0 15.6 0.63| 5.9 3.8 3000 182 15 105 4| 2.7 2.2 4.9| 44.6 -11.4 33.2 11.1 0.49| 5.5 2.7 4000 177 17 120 6| 2.0 2.4 4.4| 44.6 -26.1 18.5 4.6 0.28| 5.0 1.4 5000 171 19 120 8| 1.6 2.3 3.9| 46.3 -30.9 15.3 3.1 0.23| 4.4 1.0 6000 166 20 119 10| 1.4 2.0 3.5| 52.9 -30.9 22.0 3.7 0.24| 4.0 1.0 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20260108.00.gif