UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101512.upa.cvt Date: 1200Z 15 OCT 25 Searching for U4641... Searching the city database file for: U4641 ... Date:1200Z 15 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 1019 110 -3.7 -7.3 76 3.6 -4.8 330 1 268.0 268.4 267.3 273.9 2.16 1 1000 258 -5.1 -9.8 70 4.7 -6.5 360 7 268.0 268.3 266.7 273.0 1.81 2 951 649 -9.3 -12.5 78 3.2 -10.1 354 10 267.7 267.9 266.0 271.9 1.54 3 925 863 -10.1 -12.6 82 2.5 -10.8 350 11 269.0 269.2 266.9 273.3 1.57 4 913 964 -10.9 -13.2 83 2.3 -11.5 353 11 269.2 269.4 266.9 273.4 1.51 5 910 989 -8.7 -10.9 84 2.2 -9.3 354 11 271.7 272.0 269.1 276.7 1.83 6 908 1006 -8.7 -10.9 84 2.2 -9.3 354 11 271.9 272.2 269.2 276.9 1.83 7 896 1109 -7.1 -9.7 82 2.6 -7.9 358 10 274.5 274.9 271.3 280.2 2.04 8 850 1520 -7.7 -12.3 70 4.6 -9.0 10 9 278.1 278.4 272.9 283.1 1.75 9 778 2207 -8.9 -23.9 29 15.0 -12.1 5 13 283.9 284.0 274.6 286.1 0.71 10 760 2388 -9.7 -29.7 18 20.0 -13.3 4 14 285.0 285.0 274.7 286.3 0.43 11 700 3018 -13.3 -32.3 19 19.0 -16.3 360 17 287.8 287.8 276.1 288.9 0.36 12 644 3649 -16.5 -38.5 13 22.0 -19.3 360 20 291.1 291.1 277.6 291.8 0.21 13 548 4842 -25.1 -45.1 14 20.0 -26.8 360 27 294.6 294.6 279.1 295.0 0.12 14 500 5500 -31.1 -42.1 33 11.0 -32.0 360 31 295.1 295.2 279.4 295.8 0.19 15 400 7040 -42.7 -48.7 52 6.0 -43.0 355 27 299.5 299.5 281.3 299.9 0.11 16 368 7600 -46.7 -52.7 50 6.0 -46.9 352 29 301.4 301.4 282.0 301.7 0.08 17 334 8238 -51.5 -56.5 55 5.0 -51.6 349 32 303.3 303.3 282.8 303.5 0.05 18 300 8930 -55.5 -60.4 54 4.9 -55.6 345 35 307.1 307.1 284.3 307.3 0.04 19 254 9972 -62.3 -67.3 51 5.0 -62.3 340 36 312.0 312.0 286.1 312.1 0.02 20 250 10070 -62.3 -67.3 51 5.0 -62.3 340 36 313.4 313.4 286.6 313.5 0.02 21 200 11460 -58.3 -64.3 46 6.0 -58.4 350 21 340.4 340.4 294.4 340.6 0.03 22 158 12950 -55.5 -62.5 41 7.0 -55.7 354 13 368.9 368.9 300.4 369.2 0.05 23 150 13280 -55.9 -62.9 41 7.0 -56.1 355 11 373.8 373.8 301.2 374.0 0.05 24 100 15850 -56.3 -66.3 27 10.0 -56.6 5 7 418.9 419.0 307.6 419.2 0.05 25 70 18120 -56.3 -69.3 18 13.0 -56.8 35 1 463.9 464.0 312.1 464.2 0.05 26 60 19091 -57.5 -71.5 15 14.0 -58.0 354 2 482.2 482.2 313.7 482.4 0.04 27 50 20240 -56.3 -71.3 14 15.0 -57.1 305 3 510.8 510.8 315.7 511.1 0.05 28 30 23520 -51.7 -69.7 10 18.0 -53.7 230 13 603.7 603.7 320.8 604.5 0.11 29 29 23739 -53.1 -71.1 9 18.0 -54.9 230 14 605.7 605.8 320.9 606.4 0.09 30 23 25248 -47.7 -67.7 8 20.0 -51.2 233 21 663.1 663.2 323.2 664.6 0.18 31 20 26170 -47.5 -68.5 7 21.0 -51.4 235 25 690.8 690.9 324.2 692.4 0.19 32 16 27653 -44.9 -67.9 6 23.0 -50.5 744.8 744.9 325.8 747.2 0.26 33 12 29567 -47.3 -72.3 4 25.0 -53.0 800.2 800.2 327.3 802.0 0.18 TRP 254 9972 -62.3 -67.3 51 5.0 -62.3 340 36 312.0 312.0 286.1 312.1 0.02 WND Sounding variables and indices 1000-500 mb thick: 5242.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.20 inches Sfc-500 mean rel hum: 36.39 % Est. max temperature: 4.93 C = 40.88 F Sfc-Lift cond lev (LCL): 962.71 mb = 553.92 m = 1817.29 ft T: -8.28 C 700-500 lapse rate: 7.17 C/km ThetaE index: 1.97 C Layer 1000.0- 925.0 mb Conv cond level (CCL): 653.84 mb = 3534.01 m = 11594.39 ft Mean mixing ratio: 1.69 g/kg Conv temperature: 18.89 C = 66.00 F Cap Strength: 18.83 C Lifted Index: 18.57 C Risk: None Lifted Index @300 mb: 24.40 C Lifted Index @700 mb: 14.98 C Showalter Index: 10.42 C Risk: None Total Totals Index: 42.20 C Risk: None Vertical Totals Index: 23.40 C Cross Totals Index: 18.80 C K Index: -7.90 Risk: None Sweat Index: 49.00 Risk: None Energy Index: 2.74 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 3.60 J/kg Max Up Vert Vel: 2.68 m/s Conv Inhibition (B-): 69316.97 J/kg Cap Strength: 18.82 C Lift Cond Lev (LCL): 914.51 mb = 950.83 m = 3119.47 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 30 at 14 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 1019 110 330 1 0.5 -0.9 | 214 13 7.5 11.2 1 1000 258 360 7 -0.0 -7.0 | 234 9 7.0 5.0 2 925 863 350 11 1.9 -10.8 | 262 9 8.9 1.2 3 850 1520 10 9 -1.6 -8.9 | 240 6 5.4 3.2 4 700 3018 360 17 -0.0 -17.0 | 306 9 7.0 -5.0 5 500 5500 360 31 -0.0 -31.0 | 340 20 7.0 -19.0 6 400 7040 355 27 2.4 -26.9 | 328 18 9.3 -14.9 7 300 8930 345 35 9.1 -33.8 | 324 27 16.0 -21.8 8 254 9972 340 36 12.3 -33.8 | 319 29 19.3 -21.8 9 250 10070 340 36 12.3 -33.8 | 319 29 19.3 -21.8 10 200 11460 350 21 3.6 -20.7 | 309 14 10.6 -8.7 11 150 13280 355 11 1.0 -11.0 | 262 8 7.9 1.1 12 100 15850 5 7 -0.6 -7.0 | 232 8 6.3 5.0 13 70 18120 35 1 -0.6 -0.8 | 210 13 6.4 11.2 14 50 20240 305 3 2.5 -1.7 | 222 14 9.4 10.3 15 30 23520 230 13 10.0 8.4 | 220 26 16.9 20.4 16 20 26170 235 25 20.5 14.3 | 226 38 27.4 26.4 Wind Parameters Mean winds (0-6000m): 0.1 at 18.5 knts Storm direction: 30.1 at 13.9 knts Shear (0-3000m) pos: 1.5 neg: 1.4 tot: 2.9 10-3/s Storm rel Dir Shear (0-3000m): 94.5 deg Storm rel helicity (0-3000m) pos: 33.7 neg: -5.0 tot: 28.7 m^2/s^2 ave: 9.6 10^-3 m/s^2 rel: 0.57 Storm rel vorticity (0-3000m) horiz: 3.9 stream: 2.2 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.20 Bulk Shear: 17.84 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 ------------------------------------------------------------------------------- 500 357 7 235 9| 8.7 0.0 8.7| 17.3 0.0 17.3 34.6 0.74| 9.0 6.7 1000 354 9 247 9| 4.8 0.0 4.8| 20.9 -1.5 19.4 19.4 0.63| 6.0 3.8 1500 357 9 247 8| 3.0 0.0 3.0| 21.5 -5.0 16.5 11.0 0.40| 5.0 2.0 2000 0 9 249 7| 2.2 0.7 3.0| 25.6 -5.0 20.6 10.3 0.49| 4.4 2.2 2500 1 10 255 7| 1.8 1.1 2.9| 29.6 -5.0 24.6 9.8 0.55| 4.1 2.3 3000 1 11 263 7| 1.5 1.4 2.9| 33.7 -5.0 28.7 9.6 0.57| 3.9 2.2 4000 0 13 282 7| 1.1 1.8 2.9| 44.0 -5.0 39.0 9.8 0.58| 3.7 2.1 5000 0 16 300 8| 0.9 2.0 2.9| 54.4 -5.0 49.4 9.9 0.56| 3.5 2.0 6000 0 19 313 10| 0.7 1.7 2.5| 58.4 -12.9 45.4 7.6 0.48| 3.3 1.6 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20251015.12.gif