UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101700.upa.cvt Date: 0000Z 17 OCT 25 Searching for U4641... Searching the city database file for: U4641 ... Date:0000Z 17 OCT 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 ------------------------------------------------------------------------------- SFC 1020 112 -12.7 -14.3 88 1.6 -13.0 225 1 259.0 259.2 258.9 262.3 1.24 1 1007 211 -10.9 -13.1 84 2.2 -11.4 257 4 261.7 261.9 261.3 265.4 1.38 2 1000 265 -7.5 -9.5 86 2.0 -8.1 275 5 265.6 266.0 265.1 270.7 1.86 3 997 288 -6.9 -8.9 86 2.0 -7.5 275 5 266.5 266.8 265.8 271.8 1.95 4 980 423 -5.7 -8.6 80 2.9 -6.6 274 6 269.0 269.3 267.7 274.5 2.03 5 925 874 -8.1 -14.1 62 6.0 -9.6 270 7 271.0 271.3 268.0 274.9 1.39 6 893 1146 -8.9 -14.9 62 6.0 -10.4 278 9 272.9 273.2 269.1 276.8 1.34 7 870 1349 -7.7 -15.7 53 8.0 -9.8 284 10 276.2 276.5 271.1 280.0 1.29 8 850 1529 -8.1 -16.1 53 8.0 -10.1 290 11 277.7 277.9 271.9 281.4 1.28 9 828 1733 -8.1 -18.1 44 10.0 -10.5 290 11 279.8 279.9 272.9 283.0 1.11 10 816 1846 -8.9 -22.9 31 14.0 -11.8 290 11 280.1 280.2 272.5 282.3 0.74 11 700 3017 -15.9 -28.9 32 13.0 -18.0 290 9 284.9 285.0 274.8 286.4 0.50 12 666 3390 -18.5 -31.5 31 13.0 -20.4 302 8 286.0 286.1 275.3 287.4 0.41 13 613 4006 -19.7 -37.7 19 18.0 -21.9 322 7 291.5 291.6 277.8 292.3 0.24 14 557 4707 -25.9 -39.9 26 14.0 -27.2 344 5 292.3 292.3 278.2 293.0 0.21 15 500 5480 -30.9 -45.9 22 15.0 -31.9 10 3 295.4 295.4 279.4 295.8 0.13 16 400 7030 -42.1 -54.1 26 12.0 -42.5 70 5 300.3 300.3 281.5 300.5 0.06 17 300 8910 -56.9 -67.9 24 11.0 -57.0 45 13 305.1 305.1 283.5 305.2 0.01 18 279 9368 -59.5 -70.5 23 11.0 -59.6 40 15 307.8 307.8 284.5 307.8 0.01 19 250 10060 -57.7 -68.7 23 11.0 -57.8 45 15 320.3 320.3 288.8 320.3 0.01 20 248 10110 -57.3 -68.3 23 11.0 -57.4 44 15 321.6 321.6 289.3 321.7 0.02 21 200 11460 -56.5 -68.5 21 12.0 -56.7 30 19 343.3 343.3 295.1 343.4 0.02 22 150 13290 -55.9 -69.9 16 14.0 -56.2 40 15 373.8 373.8 301.2 373.9 0.02 23 135 13958 -55.3 -71.3 12 16.0 -55.6 43 13 386.3 386.3 303.2 386.4 0.02 24 100 15860 -56.3 -74.3 9 18.0 -56.7 50 9 418.9 419.0 307.6 419.0 0.02 25 70 18120 -57.1 -78.1 5 21.0 -57.7 60 5 462.2 462.2 312.0 462.3 0.01 26 56 19525 -58.5 -79.5 5 21.0 -59.1 4 2 489.5 489.5 314.2 489.6 0.01 27 50 20240 -56.1 -79.1 4 23.0 -57.0 335 1 511.3 511.3 315.7 511.4 0.02 28 42 21348 -58.1 -81.1 4 23.0 -58.9 291 4 532.5 532.5 317.1 532.5 0.01 29 30 23490 -55.1 -79.1 4 24.0 -56.6 205 11 594.4 594.4 320.3 594.6 0.03 30 22 25497 -50.1 -75.1 4 25.0 -53.2 205 20 664.5 664.5 323.2 665.0 0.07 31 20 26120 -50.7 -74.7 4 24.0 -53.9 205 23 681.0 681.0 323.8 681.6 0.08 32 15 28000 -49.3 -74.3 4 25.0 -53.7 744.0 744.1 325.8 745.0 0.11 TRP 279 9368 -59.5 -70.5 23 11.0 -59.6 40 15 307.8 307.8 284.5 307.8 0.01 WND Sounding variables and indices 1000-500 mb thick: 5215.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.18 inches Sfc-500 mean rel hum: 38.29 % Est. max temperature: 4.65 C = 40.38 F Sfc-Lift cond lev (LCL): 993.87 mb = 313.03 m = 1026.99 ft T: -6.68 C 700-500 lapse rate: 6.09 C/km ThetaE index: 0.71 C Layer 816.0- 700.0 mb Conv cond level (CCL): 1007.00 mb = 210.91 m = 691.95 ft Mean mixing ratio: 1.69 g/kg Conv temperature: -9.65 C = 14.63 F Cap Strength: 17.19 C Lifted Index: 18.88 C Risk: None Lifted Index @300 mb: 23.06 C Lifted Index @700 mb: 12.50 C Showalter Index: 11.94 C Risk: None Total Totals Index: 37.60 C Risk: None Vertical Totals Index: 22.80 C Cross Totals Index: 14.80 C K Index: -6.30 Risk: None Sweat Index: 25.00 Risk: None Energy Index: 3.05 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 39.44 J/kg Max Up Vert Vel: 8.88 m/s Conv Inhibition (B-): 65377.82 J/kg Cap Strength: 18.70 C Lift Cond Lev (LCL): 916.31 mb = 947.04 m = 3107.05 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 326 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 1020 112 225 1 0.7 0.7 | 156 5 -2.2 5.0 1 1000 265 275 5 5.0 -0.4 | 208 4 2.1 3.9 2 925 874 270 7 7.0 -0.0 | 223 6 4.1 4.3 3 850 1529 290 11 10.3 -3.8 | 266 7 7.4 0.6 4 700 3017 290 9 8.5 -3.1 | 257 6 5.6 1.2 5 500 5480 10 3 -0.5 -3.0 | 112 4 -3.4 1.4 6 400 7030 70 5 -4.7 -1.7 | 109 8 -7.6 2.6 7 300 8910 45 13 -9.2 -9.2 | 68 13 -12.1 -4.9 8 279 9368 40 15 -9.6 -11.5 | 60 14 -12.5 -7.2 9 250 10060 45 15 -10.6 -10.6 | 65 15 -13.5 -6.3 10 200 11460 30 19 -9.5 -16.5 | 46 17 -12.4 -12.1 11 150 13290 40 15 -9.6 -11.5 | 60 14 -12.5 -7.2 12 100 15860 50 9 -6.9 -5.8 | 82 10 -9.8 -1.5 13 70 18120 60 5 -4.3 -2.5 | 104 7 -7.2 1.8 14 50 20240 335 1 0.4 -0.9 | 144 4 -2.5 3.4 15 30 23490 205 11 4.6 10.0 | 187 14 1.7 14.3 16 20 26120 205 23 9.7 20.8 | 195 26 6.8 25.2 Wind Parameters Mean winds (0-6000m): 296.1 at 6.9 knts Storm direction: 326.1 at 5.2 knts Shear (0-3000m) pos: 1.7 neg: 0.2 tot: 1.9 10-3/s Storm rel Dir Shear (0-3000m): 103.9 deg Storm rel helicity (0-3000m) pos: 16.6 neg: -1.5 tot: 15.1 m^2/s^2 ave: 5.0 10^-3 m/s^2 rel: 0.72 Storm rel vorticity (0-3000m) horiz: 2.4 stream: 1.7 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 28.73 Bulk Shear: 1.37 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 ------------------------------------------------------------------------------- 500 272 5 204 5| 5.7 0.0 5.7| 7.1 0.0 7.1 14.2 0.93| 6.1 5.6 1000 272 6 217 5| 4.1 0.0 4.1| 10.6 0.0 10.6 10.6 0.90| 4.4 3.9 1500 279 7 233 5| 3.6 0.0 3.6| 16.2 0.0 16.2 10.8 0.91| 4.0 3.7 2000 282 8 243 6| 2.7 0.2 2.9| 16.2 -0.5 15.7 7.8 0.84| 3.2 2.7 2500 284 8 247 6| 2.2 0.3 2.4| 16.2 -1.1 15.1 6.1 0.77| 2.7 2.1 3000 285 9 249 6| 1.7 0.2 1.9| 16.6 -1.5 15.1 5.0 0.72| 2.4 1.7 4000 290 8 253 5| 1.0 0.2 1.2| 18.7 -1.5 17.2 4.3 0.67| 2.5 1.7 5000 293 8 252 4| 0.5 0.1 0.7| 19.8 -1.5 18.3 3.7 0.69| 2.4 1.6 6000 296 7 249 4| 0.4 0.1 0.5| 20.4 -2.2 18.2 3.0 0.62| 2.2 1.4 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20251017.00.gif