UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025121100.upa.cvt Date: 0000Z 11 DEC 25 Searching for U4688... Searching the city database file for: U4688 ... Date:0000Z 11 DEC 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 84 1 925 714 SFC 913 796 -30.5 -33.0 79 2.5 -30.7 40 1 249.0 249.1 248.4 249.8 0.26 3 891 949 -31.5 -34.9 72 3.4 -31.7 71 2 249.8 249.8 248.9 250.4 0.22 4 853 1223 -30.5 -34.1 71 3.6 -30.7 126 5 253.9 254.0 252.7 254.6 0.25 5 850 1245 -29.9 -33.6 70 3.7 -30.2 130 5 254.8 254.9 253.4 255.6 0.26 6 796 1719 -22.5 -26.2 72 3.7 -23.0 127 8 267.6 267.6 264.0 269.2 0.57 7 700 2658 -24.7 -28.1 73 3.4 -25.1 120 13 275.1 275.2 269.1 276.7 0.54 8 650 3197 -26.3 -29.5 74 3.2 -26.7 113 11 279.2 279.3 271.6 280.8 0.51 9 603 3734 -31.7 -34.8 74 3.1 -32.0 107 9 279.0 279.1 271.2 280.1 0.33 10 522 4744 -37.5 -40.6 73 3.1 -37.7 94 4 283.8 283.8 273.7 284.5 0.21 11 500 5040 -40.5 -43.8 70 3.3 -40.6 90 3 283.7 283.7 273.6 284.2 0.16 12 498 5067 -40.7 -43.9 71 3.2 -40.8 283.7 283.8 273.6 284.3 0.16 TRP WND Sounding variables and indices 1000-500 mb thick: 4956.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.07 inches Sfc-500 mean rel hum: 72.85 % Est. max temperature: -10.06 C = 13.89 F Sfc-Lift cond lev (LCL): 875.13 mb = 1061.56 m = 3482.76 ft T: -31.09 C 700-500 lapse rate: 6.63 C/km Conv cond level (CCL): 519.59 mb = 4775.93 m = 15668.87 ft Mean mixing ratio: 0.28 g/kg Conv temperature: 3.35 C = 38.03 F Cap Strength: 23.95 C Lifted Index: 23.52 C Risk: None Lifted Index @700 mb: 18.52 C Showalter Index: 23.05 C Risk: None Total Totals Index: 17.50 C Risk: None Vertical Totals Index: 10.60 C Cross Totals Index: 6.90 C K Index: -26.40 Risk: None Sweat Index: 13.00 Risk: None Energy Index: 6.25 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 54.02 J/kg Max Up Vert Vel: 10.39 m/s Conv Inhibition (B-): 2716.89 J/kg Cap Strength: 23.87 C Lift Cond Lev (LCL): 816.60 mb = 1534.68 m = 5034.98 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 148 at 6 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 ---------------------------------------------------------- 0 913 796 40 1 -0.6 -0.8 | 337 6 2.4 -5.7 1 850 1245 130 5 -3.8 3.2 | 24 2 -0.7 -1.7 2 700 2658 120 13 -11.3 6.5 | 101 8 -8.2 1.6 3 500 5040 90 3 -3.0 0.0 | 359 5 0.1 -4.9 Wind Parameters Mean winds (0-6000m): 117.8 at 7.7 knts Storm direction: 147.8 at 5.8 knts Shear (0-3000m) pos: 0.9 neg: 0.7 tot: 1.6 10-3/s Storm rel Dir Shear (0-3000m): 84.2 deg Storm rel helicity (0-3000m) pos: 8.0 neg: -8.4 tot: -0.3 m^2/s^2 ave: -0.1 10^-3 m/s^2 rel: 0.14 Storm rel vorticity (0-3000m) horiz: 3.3 stream: 0.5 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 19.64 Bulk Shear: 2.75 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 ------------------------------------------------------------------------------- 500 120 3 354 3| 5.5 0.0 5.5| 5.2 0.0 5.2 10.4 0.65| 6.6 4.3 1000 125 5 21 2| 2.8 1.5 4.2| 6.6 0.0 6.6 6.6 0.69| 4.8 3.3 1500 124 6 57 3| 1.8 2.0 3.8| 7.6 0.0 7.6 5.1 0.59| 4.2 2.5 2000 122 8 77 4| 1.4 1.9 3.3| 8.0 -1.1 6.9 3.4 0.47| 3.8 1.8 2500 120 8 81 4| 1.1 1.1 2.2| 8.0 -5.0 3.0 1.2 0.28| 3.5 1.0 3000 119 9 80 4| 0.9 0.7 1.6| 8.0 -8.4 -0.3 -0.1 0.14| 3.3 0.5 4000 118 8 73 4| 0.7 0.4 1.1| 8.0 -14.0 -6.0 -1.5 -0.06| 3.1 -0.2 5000 NO DATA | 0.7 0.4 1.1| | 6000 NO DATA | 0.7 0.4 1.1| | Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20251211.00.gif