UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042500.upa.cvt Date: 0000Z 25 APR 25 Searching for U4688... Searching the city database file for: U4688 ... Date:0000Z 25 APR 25 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 115 SFC 926 741 2.2 -9.8 41 12.0 -1.9 150 1 281.5 281.8 275.2 287.1 1.96 2 925 750 1.8 -10.2 41 12.0 -2.3 155 1 281.1 281.5 274.9 286.6 1.90 3 894 1019 -1.5 -12.5 43 11.0 -4.9 205 2 280.5 280.8 274.1 285.2 1.63 4 875 1188 -0.3 -11.3 43 11.0 -3.9 237 2 283.5 283.8 276.0 288.8 1.84 5 850 1417 -0.7 -13.7 37 13.0 -4.8 280 3 285.4 285.7 276.7 290.0 1.56 6 838 1531 -1.5 -14.5 36 13.0 -5.5 284 3 285.7 286.0 276.7 290.1 1.48 7 754 2366 -8.3 -19.3 41 11.0 -11.1 311 4 287.1 287.3 276.9 290.5 1.10 8 749 2418 -8.7 -18.7 44 10.0 -11.2 313 4 287.2 287.4 277.0 290.8 1.17 9 700 2943 -11.1 -29.1 21 18.0 -14.5 330 5 290.2 290.3 277.5 291.8 0.49 10 681 3154 -12.3 -30.3 21 18.0 -15.5 328 5 291.1 291.2 277.9 292.6 0.45 11 677 3199 -12.9 -30.9 21 18.0 -16.0 328 5 291.0 291.0 277.8 292.4 0.43 12 560 4616 -23.1 -30.1 53 7.0 -24.1 317 6 295.2 295.3 280.0 297.0 0.56 13 546 4801 -23.5 -29.5 58 6.0 -24.4 315 6 296.8 296.9 280.8 298.8 0.61 14 500 5440 -26.9 -32.9 57 6.0 -27.7 310 7 300.2 300.3 282.1 301.8 0.48 15 468 5913 -30.1 -37.1 50 7.0 -30.8 306 12 302.0 302.1 282.7 303.2 0.34 16 448 6222 -31.7 -42.7 33 11.0 -32.6 303 15 303.8 303.8 283.2 304.5 0.20 17 403 6959 -37.9 -55.9 13 18.0 -38.7 296 22 305.1 305.1 283.5 305.3 0.05 18 400 7010 -38.3 -56.3 13 18.0 -39.0 295 23 305.2 305.2 283.5 305.4 0.05 19 381 7342 -40.9 -58.9 13 18.0 -41.5 282 23 306.1 306.1 283.9 306.2 0.04 20 300 8930 -51.1 -63.1 23 12.0 -51.3 220 23 313.3 313.3 286.5 313.4 0.03 21 258 9901 -57.9 -67.9 27 10.0 -58.0 205 29 317.1 317.1 287.8 317.2 0.02 22 253 10024 -58.1 -68.1 27 10.0 -58.2 208 27 318.6 318.6 288.3 318.7 0.02 23 250 10100 -57.5 -67.5 27 10.0 -57.6 210 25 320.6 320.6 288.9 320.7 0.02 24 233 10545 -56.7 -66.7 27 10.0 -56.8 212 20 328.3 328.3 291.3 328.4 0.02 25 200 11520 -53.5 -65.5 22 12.0 -53.8 215 9 348.0 348.1 296.2 348.2 0.03 26 184 12056 -50.9 -64.9 17 14.0 -51.3 211 9 360.7 360.7 298.8 360.8 0.03 27 150 13380 -50.3 -68.3 10 18.0 -50.8 200 9 383.4 383.4 302.8 383.5 0.03 28 100 16020 -52.3 -76.3 4 24.0 -53.0 145 9 426.7 426.7 308.5 426.7 0.01 29 70 18340 -51.1 -76.1 4 25.0 -52.2 135 7 475.1 475.1 313.1 475.2 0.02 30 53 20143 -50.3 -75.3 4 25.0 -51.8 156 7 516.3 516.3 316.1 516.4 0.03 31 52 20266 -51.1 -76.1 4 25.0 -52.5 157 7 517.2 517.2 316.1 517.4 0.02 32 50 20520 -51.1 -76.1 4 25.0 -52.6 160 7 523.1 523.1 316.5 523.2 0.02 33 45 21206 -51.7 -76.7 3 25.0 -53.2 152 7 537.6 537.6 317.4 537.8 0.02 34 35 22834 -53.3 -77.3 4 24.0 -54.9 132 6 573.5 573.5 319.3 573.7 0.03 35 30 23830 -52.5 -76.5 4 24.0 -54.5 120 5 601.5 601.5 320.7 601.8 0.04 36 29 24048 -53.1 -77.1 4 24.0 -55.0 124 5 605.7 605.7 320.9 606.0 0.04 37 27 24511 -50.5 -75.5 4 25.0 -53.1 133 5 625.5 625.6 321.7 625.9 0.05 38 25 25012 -49.9 -74.9 4 25.0 -52.8 142 5 641.2 641.2 322.4 641.6 0.06 39 21 26144 -52.3 -77.3 3 25.0 -55.0 164 5 666.7 666.7 323.3 667.1 0.05 40 20 26460 -51.1 -76.1 4 25.0 -54.2 170 5 679.8 679.8 323.8 680.3 0.06 41 16 27922 -48.5 -73.5 4 25.0 -52.9 160 7 733.0 733.1 325.5 734.1 0.11 42 10 31030 -46.9 -72.9 4 26.0 -53.5 140 11 844.5 844.6 328.3 846.6 0.20 43 9.3 31512 -45.7 -71.7 4 26.0 -53.1 866.8 866.9 328.8 869.5 0.26 TRP 258 9901 -57.9 -67.9 27 10.0 -58.0 205 29 317.1 317.1 287.8 317.2 0.02 WND Sounding variables and indices 1000-500 mb thick: 5325.00 m Freezing level: 908.09 mb = 896.89 m = 2942.50 ft Wetbulb zero: Below ground Precipitable water: 0.18 inches Sfc-500 mean rel hum: 40.11 % Est. max temperature: 7.38 C = 45.28 F Sfc-Lift cond lev (LCL): 767.82 mb = 2222.69 m = 7292.19 ft T: -7.13 C 700-500 lapse rate: 6.33 C/km ThetaE index: 1.89 C Layer 925.0- 875.0 mb Conv cond level (CCL): 634.50 mb = 3682.91 m = 12082.90 ft Mean mixing ratio: 1.67 g/kg Conv temperature: 12.93 C = 55.27 F Cap Strength: 8.59 C Lifted Index: 10.76 C Risk: None Lifted Index @300 mb: 17.90 C Lifted Index @700 mb: 5.78 C Showalter Index: 9.29 C Risk: None Total Totals Index: 39.40 C Risk: None Vertical Totals Index: 26.20 C Cross Totals Index: 13.20 C K Index: -5.50 Risk: None Sweat Index: 13.00 Risk: None Energy Index: 2.45 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 29.88 J/kg Max Up Vert Vel: 7.73 m/s Conv Inhibition (B-): 63688.88 J/kg Cap Strength: 10.49 C Lift Cond Lev (LCL): 725.63 mb = 2664.10 m = 8740.37 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 338 at 5 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 ---------------------------------------------------------- 0 926 741 150 1 -0.5 0.9 | 157 6 -2.4 5.6 1 925 750 155 1 -0.4 0.9 | 158 6 -2.3 5.7 2 850 1417 280 3 3.0 -0.5 | 194 4 1.1 4.2 3 700 2943 330 5 2.5 -4.3 | 235 1 0.6 0.4 4 500 5440 310 7 5.4 -4.5 | 266 3 3.5 0.2 5 400 7010 295 23 20.8 -9.7 | 285 20 18.9 -5.0 6 300 8930 220 23 14.8 17.6 | 210 26 12.9 22.4 7 258 9901 205 29 12.3 26.3 | 198 33 10.4 31.0 8 250 10100 210 25 12.5 21.7 | 202 28 10.6 26.4 9 200 11520 215 9 5.2 7.4 | 195 13 3.3 12.1 10 150 13380 200 9 3.1 8.5 | 185 13 1.2 13.2 11 100 16020 145 9 -5.2 7.4 | 150 14 -7.1 12.1 12 70 18340 135 7 -4.9 4.9 | 145 12 -6.9 9.7 13 50 20520 160 7 -2.4 6.6 | 159 12 -4.3 11.3 14 30 23830 120 5 -4.3 2.5 | 139 10 -6.2 7.2 15 20 26460 170 5 -0.9 4.9 | 164 10 -2.8 9.7 16 10 31030 140 11 -7.1 8.4 | 146 16 -9.0 13.2 Wind Parameters Mean winds (0-6000m): 308.1 at 6.8 knts Storm direction: 338.1 at 5.1 knts Shear (0-3000m) pos: 1.1 neg: 0.1 tot: 1.2 10-3/s Storm rel Dir Shear (0-3000m): 105.1 deg Storm rel helicity (0-3000m) pos: 7.5 neg: 0.0 tot: 7.5 m^2/s^2 ave: 2.5 10^-3 m/s^2 rel: 0.61 Storm rel vorticity (0-3000m) horiz: 1.7 stream: 1.0 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 4.80 Bulk Shear: 6.22 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 ------------------------------------------------------------------------------- 500 224 2 173 6| 2.9 0.0 2.9| 4.9 0.0 4.9 9.8 0.91| 3.3 3.0 1000 274 2 186 5| 2.2 0.0 2.2| 6.6 0.0 6.6 6.6 0.77| 2.9 2.2 1500 288 3 191 4| 1.7 0.0 1.7| 7.1 0.0 7.1 4.7 0.71| 2.4 1.7 2000 300 3 196 3| 1.5 0.0 1.5| 7.3 0.0 7.3 3.7 0.65| 2.1 1.4 2500 310 4 199 3| 1.3 0.0 1.3| 7.4 0.0 7.4 3.0 0.62| 1.9 1.2 3000 314 4 203 2| 1.1 0.1 1.2| 7.5 0.0 7.5 2.5 0.61| 1.7 1.0 4000 316 4 217 2| 0.8 0.2 1.0| 7.6 0.0 7.6 1.9 0.56| 1.4 0.8 5000 314 5 234 2| 0.6 0.6 1.2| 9.2 -0.0 9.1 1.8 0.50| 1.5 0.8 6000 308 7 261 3| 0.5 1.4 1.9| 10.6 -1.2 9.4 1.6 0.31| 2.2 0.7 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20250425.00.gif