UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041912.upa.cvt Date: 1200Z 19 APR 25 Searching for U4641... Searching the city database file for: U4641 ... Date:1200Z 19 APR 25 Station: U4641 WMO ident: 24641 Latitude: 63.77 Longitude: 121.62 ------------------------------------------------------------------------------- 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 25 SFC 990 108 8.2 -6.8 34 15.0 2.4 115 5 282.2 282.6 276.0 288.8 2.31 2 981 183 8.2 -5.8 36 14.0 2.6 120 8 282.9 283.3 276.7 290.1 2.52 3 925 665 5.2 -11.8 28 17.0 -0.6 150 29 284.6 284.9 276.4 289.6 1.67 4 850 1350 0.4 -15.6 29 16.0 -4.5 175 19 286.6 286.8 276.9 290.6 1.33 5 849 1359 0.4 -15.6 29 16.0 -4.5 175 19 286.7 286.9 277.0 290.7 1.33 6 772 2117 -3.1 -15.1 39 12.0 -6.8 177 15 290.8 291.1 279.3 295.4 1.53 7 700 2884 -8.3 -20.3 37 12.0 -11.3 180 11 293.3 293.5 279.8 296.7 1.09 8 526 5041 -22.9 -38.9 22 16.0 -24.8 222 16 300.7 300.8 282.0 301.6 0.25 9 500 5410 -25.9 -42.9 19 17.0 -27.5 230 17 301.5 301.5 282.2 302.1 0.17 10 400 6980 -39.1 -53.1 21 14.0 -39.7 225 23 304.2 304.2 283.2 304.4 0.07 11 300 8890 -53.9 -64.9 25 11.0 -54.1 220 31 309.4 309.4 285.1 309.5 0.02 12 297 8954 -54.7 -65.7 24 11.0 -54.8 220 31 309.1 309.1 285.0 309.2 0.02 13 258 9843 -59.9 -68.9 30 9.0 -60.0 225 33 314.2 314.2 286.8 314.2 0.01 14 253 9965 -60.1 -69.1 30 9.0 -60.2 225 33 315.6 315.6 287.3 315.7 0.01 15 250 10040 -59.1 -69.1 26 10.0 -59.2 225 33 318.2 318.2 288.2 318.3 0.01 16 244 10192 -58.1 -68.1 27 10.0 -58.2 225 32 321.9 321.9 289.3 322.0 0.02 17 200 11460 -51.7 -62.7 26 11.0 -52.0 225 25 350.9 350.9 296.8 351.1 0.04 18 184 12005 -49.9 -61.9 23 12.0 -50.3 226 25 362.3 362.3 299.2 362.5 0.05 19 150 13340 -51.3 -68.3 11 17.0 -51.8 230 25 381.7 381.7 302.5 381.8 0.03 20 109 15405 -53.5 -74.5 6 21.0 -54.1 230 17 414.0 414.0 307.0 414.1 0.01 21 100 15960 -53.1 -75.1 5 22.0 -53.7 230 15 425.1 425.1 308.3 425.2 0.01 22 74 17901 -53.7 -77.7 4 24.0 -54.5 234 15 462.1 462.1 312.0 462.2 0.01 23 70 18260 -52.5 -76.5 4 24.0 -53.5 235 15 472.1 472.1 312.8 472.2 0.02 24 61 19156 -50.5 -74.5 4 24.0 -51.8 249 13 495.5 495.5 314.7 495.6 0.03 25 50 20450 -52.5 -76.5 4 24.0 -53.8 270 11 519.8 519.8 316.3 519.9 0.02 26 31 23529 -53.5 -77.5 4 24.0 -55.2 251 13 593.2 593.2 320.3 593.4 0.03 27 30 23740 -52.9 -76.9 4 24.0 -54.8 250 13 600.4 600.4 320.6 600.7 0.04 28 20 26370 -51.1 -75.1 4 24.0 -54.2 240 5 679.8 679.8 323.8 680.4 0.07 29 16 27827 -49.5 -74.5 4 25.0 -53.6 729.8 729.8 325.4 730.7 0.10 TRP 258 9843 -59.9 -68.9 30 9.0 -60.0 225 33 314.2 314.2 286.8 314.2 0.01 WND Sounding variables and indices 1000-500 mb thick: 5385.00 m Freezing level: 840.20 mb = 1445.98 m = 4743.98 ft Wetbulb zero: 935.86 mb = 569.34 m = 1867.89 ft Precipitable water: 0.24 inches Sfc-500 mean rel hum: 30.89 % Est. max temperature: 13.15 C = 55.67 F Sfc-Lift cond lev (LCL): 785.89 mb = 1974.64 m = 6478.41 ft T: -2.44 C 700-500 lapse rate: 6.97 C/km ThetaE index: 0.58 C Layer 925.0- 850.0 mb Conv cond level (CCL): 613.68 mb = 3877.13 m = 12720.10 ft Mean mixing ratio: 1.94 g/kg Conv temperature: 22.81 C = 73.06 F Cap Strength: 10.30 C Lifted Index: 10.47 C Risk: None Lifted Index @300 mb: 13.93 C Lifted Index @700 mb: 7.44 C Showalter Index: 9.88 C Risk: None Total Totals Index: 36.60 C Risk: None Vertical Totals Index: 26.30 C Cross Totals Index: 10.30 C K Index: -1.30 Risk: None Sweat Index: 182.39 Risk: None Energy Index: 2.47 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 10.45 J/kg Max Up Vert Vel: 4.57 m/s Conv Inhibition (B-): 60826.55 J/kg Cap Strength: 10.43 C Lift Cond Lev (LCL): 736.67 mb = 2483.87 m = 8149.07 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 221 at 12 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 ---------------------------------------------------------- 0 990 108 115 5 -4.5 2.1 | 60 14 -12.4 -7.1 1 925 665 150 29 -14.5 25.1 | 125 27 -22.4 15.9 2 850 1350 175 19 -1.7 18.9 | 136 14 -9.5 9.8 3 700 2884 180 11 0.0 11.0 | 103 8 -7.9 1.8 4 500 5410 230 17 13.0 10.9 | 251 5 5.1 1.8 5 400 6980 225 23 16.3 16.3 | 230 11 8.4 7.1 6 300 8890 220 31 19.9 23.7 | 220 19 12.0 14.6 7 258 9843 225 33 23.3 23.3 | 227 21 15.4 14.2 8 250 10040 225 33 23.3 23.3 | 227 21 15.4 14.2 9 200 11460 225 25 17.7 17.7 | 229 13 9.8 8.5 10 150 13340 230 25 19.2 16.1 | 239 13 11.3 6.9 11 100 15960 230 15 11.5 9.6 | 262 4 3.6 0.5 12 70 18260 235 15 12.3 8.6 | 277 4 4.4 -0.6 13 50 20450 270 11 11.0 -0.0 | 341 10 3.1 -9.2 14 30 23740 250 13 12.2 4.4 | 317 6 4.3 -4.7 15 20 26370 240 5 4.3 2.5 | 28 8 -3.6 -6.7 Wind Parameters Mean winds (0-6000m): 190.7 at 16.1 knts Storm direction: 220.7 at 12.1 knts Shear (0-3000m) pos: 1.9 neg: 0.0 tot: 1.9 10-3/s Storm rel Dir Shear (0-3000m): 48.0 deg Storm rel helicity (0-3000m) pos: 149.3 neg: -15.0 tot: 134.3 m^2/s^2 ave: 44.8 10^-3 m/s^2 rel: 0.45 Storm rel vorticity (0-3000m) horiz: 8.4 stream: 3.7 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.50 Bulk Shear: 20.80 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 ------------------------------------------------------------------------------- 500 144 16 102 17| 23.1 0.0 23.1|107.0 0.0 107.0 214.1 0.87| 24.1 20.9 1000 152 21 117 20| 10.2 0.0 10.2|145.7 0.0 145.7 145.7 0.74| 18.1 13.5 1500 158 20 122 18| 5.4 0.0 5.4|148.0 -2.3 145.7 97.1 0.63| 14.2 8.9 2000 162 19 124 17| 3.5 0.0 3.5|148.0 -7.2 140.9 70.4 0.56| 11.3 6.3 2500 164 18 123 15| 2.3 0.0 2.3|148.0 -12.3 135.7 54.3 0.48| 9.6 4.6 3000 166 17 122 14| 1.9 0.0 1.9|149.3 -15.0 134.3 44.8 0.45| 8.4 3.7 4000 172 16 123 12| 1.9 0.0 1.9|155.0 -15.0 139.9 35.0 0.47| 6.9 3.3 5000 181 16 131 10| 1.9 0.0 1.9|160.2 -15.0 145.2 29.0 0.52| 6.1 3.2 6000 191 16 144 8| 1.7 0.2 1.9|162.1 -17.4 144.6 24.1 0.48| 5.5 2.7 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20250419.12.gif