UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2026011912.upa.cvt Date: 1200Z 19 JAN 26 Searching for U4688... Searching the city database file for: U4688 ... Date:1200Z 19 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 338 SFC 942 740 -45.5 -48.4 72 2.9 -45.6 270 1 231.6 231.6 231.5 231.7 0.05 2 938 769 -43.5 -46.8 70 3.3 -43.6 231 1 233.9 233.9 233.7 234.1 0.06 3 925 864 -41.9 -45.3 69 3.4 -42.0 105 3 236.5 236.5 236.3 236.7 0.07 4 889 1136 -36.3 -41.1 61 4.8 -36.5 72 5 245.0 245.0 244.3 245.3 0.12 5 871 1279 -35.7 -40.5 61 4.8 -35.9 55 6 247.0 247.0 246.3 247.4 0.13 6 850 1450 -32.1 -38.1 55 6.0 -32.4 35 7 252.5 252.5 251.3 253.0 0.17 7 754 2318 -17.9 -29.9 34 12.0 -19.6 23 11 276.7 276.8 269.9 278.0 0.42 8 700 2868 -21.1 -34.1 30 13.0 -22.6 15 13 279.1 279.2 271.2 280.1 0.30 9 691 2964 -21.9 -35.9 27 14.0 -23.4 14 14 279.3 279.3 271.2 280.1 0.26 10 626 3690 -23.1 -41.1 18 18.0 -24.8 3 21 285.9 285.9 274.8 286.5 0.17 11 601 3988 -25.5 -46.5 12 21.0 -27.1 359 23 286.5 286.5 275.0 286.8 0.10 12 500 5300 -34.5 -54.5 11 20.0 -35.4 340 36 291.0 291.0 277.2 291.1 0.05 13 457 5921 -38.7 -53.7 19 15.0 -39.3 340 38 293.3 293.3 278.4 293.5 0.06 14 400 6820 -45.9 -58.9 22 13.0 -46.2 340 42 295.3 295.3 279.3 295.5 0.03 15 316 8344 -57.9 -68.9 23 11.0 -58.0 340 36 299.2 299.3 281.0 299.3 0.01 16 300 8670 -59.5 -70.5 23 11.0 -59.6 340 35 301.5 301.5 282.0 301.5 0.01 17 265 9442 -64.5 -74.5 24 10.0 -64.6 340 31 305.0 305.1 283.4 305.1 0.01 18 258 9606 -64.7 -74.7 24 10.0 -64.7 345 27 307.1 307.1 284.2 307.1 0.01 19 250 9800 -64.1 -74.1 24 10.0 -64.1 350 23 310.8 310.8 285.6 310.8 0.01 20 219 10614 -62.5 -72.5 25 10.0 -62.6 14 12 325.2 325.2 290.3 325.3 0.01 21 200 11180 -58.3 -68.3 27 10.0 -58.5 30 5 340.4 340.4 294.4 340.5 0.02 22 189 11535 -56.5 -66.5 27 10.0 -56.7 54 7 348.9 348.9 296.4 349.0 0.03 23 150 13010 -51.5 -63.5 23 12.0 -51.9 150 13 381.3 381.3 302.5 381.6 0.05 24 112 14922 -46.9 -63.9 13 17.0 -47.9 164 26 423.2 423.2 308.1 423.5 0.06 25 100 15670 -48.1 -67.1 9 19.0 -49.1 170 31 434.8 434.8 309.4 435.0 0.05 26 85 16742 -46.5 -68.5 6 22.0 -47.9 170 34 458.7 458.7 311.7 459.0 0.04 27 72 17828 -52.3 -74.3 5 22.0 -53.2 170 37 468.7 468.7 312.5 468.8 0.02 28 71 17918 -52.3 -74.3 5 22.0 -53.2 170 38 470.6 470.6 312.7 470.7 0.02 29 70 18010 -51.7 -74.7 5 23.0 -52.7 170 38 473.8 473.8 313.0 473.9 0.02 30 58 19231 -51.1 -75.1 4 24.0 -52.4 176 47 501.3 501.3 315.1 501.5 0.02 31 54 19694 -52.7 -76.7 4 24.0 -53.9 178 50 508.0 508.0 315.5 508.1 0.02 32 50 20190 -52.9 -76.9 4 24.0 -54.1 180 54 518.8 518.8 316.2 518.9 0.02 33 30 23480 -53.5 -77.5 4 24.0 -55.3 180 56 598.8 598.8 320.6 599.0 0.03 34 21 25772 -54.1 -78.1 4 24.0 -56.3 661.3 661.3 323.1 661.6 0.04 35 20 26085 -53.3 -77.3 4 24.0 -55.8 673.0 673.0 323.6 673.4 0.05 TRP 265 9442 -64.5 -74.5 24 10.0 -64.6 340 31 305.0 305.1 283.4 305.1 0.01 WND Sounding variables and indices 1000-500 mb thick: 4962.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.04 inches Sfc-500 mean rel hum: 31.01 % Est. max temperature: -11.04 C = 12.13 F Sfc-Lift cond lev (LCL): 894.33 mb = 1095.50 m = 3594.11 ft T: -37.14 C 700-500 lapse rate: 5.51 C/km ThetaE index: 0.00 C Layer 942.0-949195686700696731648.0 mb Conv cond level (CCL): 942.00 mb = 740.19 m = 2428.41 ft Mean mixing ratio: 0.11 g/kg Conv temperature: -40.91 C = -41.64 F Cap Strength: 36.71 C Lifted Index: 38.49 C Risk: None Lifted Index @300 mb: 40.68 C Lifted Index @700 mb: 31.79 C Showalter Index: 31.16 C Risk: None Total Totals Index: -1.20 C Risk: None Vertical Totals Index: 2.40 C Cross Totals Index: -3.60 C K Index: -48.70 Risk: None Sweat Index: 50.00 Risk: None Energy Index: 8.33 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 80.89 J/kg Max Up Vert Vel: 12.72 m/s Conv Inhibition (B-): 63173.18 J/kg Cap Strength: 38.34 C Lift Cond Lev (LCL): 829.65 mb = 1625.45 m = 5332.79 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 19 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 ---------------------------------------------------------- 0 942 740 270 1 1.0 -0.0 | 203 17 6.5 15.8 1 925 864 105 3 -2.9 0.8 | 189 17 2.7 16.5 2 850 1450 35 7 -4.0 -5.7 | 189 10 1.5 10.0 3 700 2868 15 13 -3.4 -12.6 | 214 4 2.2 3.2 4 500 5300 340 36 12.3 -33.8 | 315 25 17.9 -18.1 5 400 6820 340 42 14.4 -39.5 | 320 31 19.9 -23.7 6 300 8670 340 35 12.0 -32.9 | 314 24 17.5 -17.1 7 265 9442 340 31 10.6 -29.1 | 310 21 16.2 -13.4 8 250 9800 350 23 4.0 -22.7 | 306 12 9.5 -6.9 9 200 11180 30 5 -2.5 -4.3 | 195 12 3.0 11.4 10 150 13010 150 13 -6.5 11.3 | 178 27 -1.0 27.0 11 100 15670 170 31 -5.4 30.5 | 180 46 0.2 46.3 12 70 18010 170 38 -6.6 37.4 | 179 53 -1.0 53.2 13 50 20190 180 54 0.0 54.0 | 185 70 5.5 69.8 14 30 23480 180 56 0.0 56.0 | 184 72 5.5 71.8 Wind Parameters Mean winds (0-6000m): 349.4 at 22.3 knts Storm direction: 19.4 at 16.7 knts Shear (0-3000m) pos: 1.1 neg: 3.2 tot: 4.3 10-3/s Storm rel Dir Shear (0-3000m): 117.1 deg Storm rel helicity (0-3000m) pos: 12.1 neg: -25.8 tot: -13.7 m^2/s^2 ave: -4.6 10^-3 m/s^2 rel: 0.13 Storm rel vorticity (0-3000m) horiz: 4.9 stream: 0.6 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 1.20 Bulk Shear: 67.15 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 78 4 187 15| 6.6 0.0 6.6| 0.0 -25.8 -25.8 -51.5 -0.62| 9.5 -5.9 1000 46 5 188 12| 3.3 2.2 5.5| 3.1 -25.8 -22.6 -22.6 -0.34| 7.0 -2.4 1500 37 7 189 11| 2.2 2.3 4.5| 4.0 -25.8 -21.7 -14.5 -0.26| 5.5 -1.4 2000 29 8 191 9| 1.7 2.4 4.0| 5.8 -25.8 -19.9 -10.0 -0.16| 4.8 -0.7 2500 24 9 194 8| 1.3 2.8 4.1| 9.0 -25.8 -16.8 -6.7 0.04| 4.7 0.2 3000 18 10 201 6| 1.1 3.2 4.3| 12.1 -25.8 -13.7 -4.6 0.13| 4.9 0.6 4000 5 14 251 5| 0.8 3.8 4.6| 13.2 -28.9 -15.8 -3.9 0.09| 5.1 0.4 5000 354 19 290 8| 0.7 3.8 4.5| 17.6 -39.5 -21.9 -4.4 0.05| 5.0 0.2 6000 349 22 302 11| 0.6 3.5 4.1| 28.7 -39.5 -10.9 -1.8 0.07| 4.5 0.3 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20260119.12.gif