UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2026011412.upa.cvt Date: 1200Z 14 JAN 26 Searching for U4688... Searching the city database file for: U4688 ... Date:1200Z 14 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 244 SFC 933 739 -30.7 -33.5 76 2.8 -30.9 170 1 247.3 247.3 246.8 248.0 0.24 2 925 801 -29.7 -32.9 74 3.2 -29.9 155 1 248.9 249.0 248.3 249.7 0.26 3 850 1421 -17.9 -20.9 77 3.0 -18.4 135 17 267.4 267.5 264.5 269.8 0.85 4 815 1738 -12.9 -15.8 79 2.9 -13.6 138 17 275.9 276.2 271.1 279.9 1.37 5 710 2777 -19.1 -22.1 77 3.0 -19.7 149 15 280.2 280.4 272.8 282.9 0.92 6 700 2882 -19.9 -22.9 77 3.0 -20.4 150 15 280.4 280.6 272.9 283.0 0.87 7 523 4978 -34.9 -38.0 73 3.1 -35.1 141 29 286.8 286.8 275.5 287.7 0.28 8 500 5290 -37.9 -40.8 74 2.9 -38.1 140 31 286.8 286.9 275.4 287.5 0.22 9 437 6197 -45.3 -48.2 72 2.9 -45.4 134 34 288.7 288.7 276.2 289.1 0.11 10 400 6780 -48.5 -51.3 73 2.8 -48.6 130 36 292.0 292.0 277.8 292.3 0.08 11 348 7681 -54.3 -57.2 70 2.9 -54.4 125 39 296.0 296.0 279.6 296.1 0.05 12 300 8620 -58.1 -60.8 71 2.7 -58.2 120 42 303.4 303.5 282.8 303.6 0.04 13 250 9770 -62.5 -65.1 71 2.6 -62.5 135 46 313.1 313.2 286.5 313.2 0.02 14 243 9946 -63.1 -65.8 70 2.7 -63.1 140 42 314.8 314.8 287.1 314.9 0.02 15 200 11150 -62.5 -65.1 71 2.6 -62.6 155 36 333.8 333.8 292.7 333.9 0.03 16 192 11403 -60.9 -63.8 68 2.9 -60.9 164 34 340.3 340.3 294.4 340.4 0.04 17 165 12342 -61.7 -64.5 69 2.8 -61.7 198 27 354.0 354.0 297.5 354.2 0.04 18 161 12496 -57.7 -60.5 70 2.8 -57.8 204 26 363.2 363.3 299.4 363.5 0.07 19 150 12940 -59.5 -62.4 69 2.9 -59.6 220 23 367.6 367.6 300.2 367.8 0.06 20 130 13828 -62.5 -65.1 71 2.6 -62.6 211 24 377.5 377.6 301.9 377.8 0.05 21 121 14271 -61.1 -64.0 68 2.9 -61.2 207 25 387.9 388.0 303.5 388.2 0.06 22 116 14535 -57.1 -59.9 70 2.8 -57.2 204 26 400.1 400.1 305.3 400.6 0.10 23 100 15470 -58.5 -61.4 69 2.9 -58.6 195 27 414.7 414.7 307.2 415.2 0.10 24 79 16970 -53.3 -56.2 71 2.9 -53.5 195 36 454.4 454.4 311.4 455.7 0.24 25 70 17750 -52.9 -55.7 71 2.8 -53.2 195 40 471.2 471.3 312.9 472.9 0.29 26 50 19940 -47.5 -50.3 73 2.8 -48.1 190 60 531.5 531.8 317.3 536.4 0.76 27 40 21422 -44.7 -47.9 70 3.2 -45.6 199 60 573.6 574.0 319.8 582.2 1.26 28 30 23340 -45.7 -48.8 71 3.1 -46.7 210 60 620.1 620.6 321.9 631.3 1.51 29 28 23798 -46.7 -49.6 72 2.9 -47.6 207 59 629.6 630.2 322.3 640.8 1.48 30 22 25411 -42.9 -46.1 71 3.2 -44.4 199 55 685.9 687.1 324.7 708.7 2.79 31 20 26050 -45.1 -48.3 70 3.2 -46.5 195 54 698.1 699.2 325.0 718.3 2.40 32 17 27127 -48.6 -51.8 69 3.2 -49.8 205 64 720.1 721.0 325.6 736.6 1.89 33 16 27525 -49.9 -53.1 69 3.2 -51.1 728.5 729.2 325.7 743.8 1.72 34 14 28400 -49.1 -52.3 69 3.2 -50.4 759.5 760.5 326.7 779.6 2.17 35 14 28400 -45.9 -49.1 70 3.2 -47.5 770.4 771.9 327.3 799.6 3.14 TRP 243 9946 -63.1 -65.8 70 2.7 -63.1 140 42 314.8 314.8 287.1 314.9 0.02 WND 17 27127 -48.6 -51.8 69 3.2 -49.8 205 64 720.1 721.0 325.6 736.6 1.89 Sounding variables and indices 1000-500 mb thick: 5046.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.17 inches Sfc-500 mean rel hum: 75.94 % Est. max temperature: -1.41 C = 29.45 F Sfc-Lift cond lev (LCL): 889.72 mb = 1086.14 m = 3563.42 ft T: -24.27 C 700-500 lapse rate: 7.48 C/km Conv cond level (CCL): 933.00 mb = 739.38 m = 2425.74 ft Mean mixing ratio: 0.60 g/kg Conv temperature: -23.72 C = -10.70 F Cap Strength: 21.45 C Lifted Index: 21.20 C Risk: None Lifted Index @300 mb: 30.01 C Lifted Index @700 mb: 18.05 C Showalter Index: 14.11 C Risk: None Total Totals Index: 37.00 C Risk: None Vertical Totals Index: 20.00 C Cross Totals Index: 17.00 C K Index: -3.90 Risk: None Sweat Index: 65.00 Risk: None Energy Index: 3.85 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 82.44 J/kg Max Up Vert Vel: 12.84 m/s Conv Inhibition (B-): 64417.27 J/kg Cap Strength: 21.40 C Lift Cond Lev (LCL): 860.83 mb = 1328.18 m = 4357.48 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 170 at 17 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 ---------------------------------------------------------- 0 933 739 170 1 -0.2 1.0 | 349 16 2.9 -15.6 1 925 801 155 1 -0.4 0.9 | 350 16 2.6 -15.6 2 850 1421 135 17 -12.0 12.0 | 63 10 -9.0 -4.5 3 700 2882 150 15 -7.5 13.0 | 51 6 -4.4 -3.6 4 500 5290 140 31 -19.9 23.7 | 113 18 -16.9 7.2 5 400 6780 130 36 -27.6 23.1 | 105 25 -24.5 6.6 6 300 8620 120 42 -36.4 21.0 | 98 34 -33.3 4.5 7 250 9770 135 46 -32.5 32.5 | 118 34 -29.5 16.0 8 243 9946 140 42 -27.0 32.2 | 123 29 -23.9 15.6 9 200 11150 155 36 -15.2 32.6 | 143 20 -12.2 16.1 10 150 12940 220 23 14.8 17.6 | 267 18 17.8 1.1 11 100 15470 195 27 7.0 26.1 | 227 14 10.0 9.5 12 70 17750 195 40 10.4 38.6 | 211 26 13.4 22.1 13 50 19940 190 60 10.4 59.1 | 198 45 13.5 42.5 14 30 23340 210 60 30.0 52.0 | 223 48 33.1 35.4 15 20 26050 195 54 14.0 52.2 | 206 39 17.0 35.6 Wind Parameters Mean winds (0-6000m): 139.5 at 22.4 knts Storm direction: 169.5 at 16.8 knts Shear (0-3000m) pos: 0.5 neg: 3.6 tot: 4.2 10-3/s Storm rel Dir Shear (0-3000m): 105.3 deg Storm rel helicity (0-3000m) pos: 41.9 neg: -2.7 tot: 39.2 m^2/s^2 ave: 13.1 10^-3 m/s^2 rel: 0.60 Storm rel vorticity (0-3000m) horiz: 4.6 stream: 2.8 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 2.29 Bulk Shear: 36.05 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 ------------------------------------------------------------------------------- 500 142 6 3 12| 0.0 11.8 11.8| 22.7 0.0 22.7 45.5 0.70| 11.9 8.3 1000 136 11 27 10| 0.0 8.1 8.1| 33.5 -0.4 33.1 33.1 0.72| 9.0 6.4 1500 138 13 37 9| 0.6 5.4 5.9| 33.5 -1.3 32.2 21.5 0.63| 6.5 4.1 2000 140 13 41 8| 0.8 4.0 4.9| 33.5 -2.4 31.1 15.5 0.55| 5.3 2.9 2500 142 14 44 8| 0.6 3.7 4.3| 37.0 -2.7 34.3 13.7 0.58| 4.8 2.8 3000 143 15 50 7| 0.5 3.6 4.2| 41.9 -2.7 39.2 13.1 0.60| 4.6 2.8 4000 143 17 68 8| 0.4 3.6 4.0| 50.4 -2.7 47.7 11.9 0.57| 4.3 2.4 5000 142 20 84 9| 0.3 3.4 3.8| 53.4 -6.6 46.8 9.4 0.48| 4.1 2.0 6000 140 22 93 12| 0.3 3.2 3.5| 53.4 -19.7 33.7 5.6 0.38| 3.8 1.4 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20260114.12.gif