UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120800.upa.cvt Date: 0000Z 8 DEC 25 Searching for U9231... Searching the city database file for: U9231 ... Date:0000Z 8 DEC 25 Station: U9231 WMO ident: 29231 Latitude: 58.30 Longitude: 82.88 ------------------------------------------------------------------------------- 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 1025 80 -35.3 -39.6 65 4.3 -35.5 320 1 236.2 236.2 236.1 236.5 0.12 1 1010 184 -32.1 -36.5 65 4.4 -32.3 320 2 240.4 240.4 240.2 240.8 0.17 2 1000 254 -30.9 -35.1 67 4.2 -31.2 320 3 242.2 242.3 242.0 242.8 0.19 3 925 818 -20.9 -24.7 71 3.8 -21.4 315 7 257.9 258.0 256.7 259.5 0.56 4 860 1357 -19.5 -27.5 49 8.0 -20.5 311 10 264.8 264.9 261.9 266.2 0.46 5 850 1444 -19.9 -28.9 45 9.0 -21.0 310 11 265.3 265.4 262.1 266.5 0.41 6 767 2203 -23.5 -36.5 29 13.0 -24.6 310 14 269.3 269.4 264.6 270.0 0.22 7 700 2870 -26.3 -36.3 38 10.0 -27.2 310 17 273.4 273.4 267.4 274.1 0.24 8 687 3005 -26.7 -36.7 38 10.0 -27.6 310 18 274.4 274.4 268.1 275.1 0.24 9 582 4177 -35.1 -44.1 39 9.0 -35.6 307 25 277.9 277.9 270.1 278.3 0.13 10 500 5220 -40.9 -50.9 33 10.0 -41.2 305 31 283.2 283.2 273.1 283.4 0.07 11 464 5725 -43.5 -53.5 32 10.0 -43.8 286.1 286.1 274.7 286.2 0.06 TRP WND Sounding variables and indices 1000-500 mb thick: 4966.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.06 inches Sfc-500 mean rel hum: 43.89 % Est. max temperature: -8.11 C = 17.41 F Sfc-Lift cond lev (LCL): 951.70 mb = 612.16 m = 2008.36 ft T: -24.55 C 700-500 lapse rate: 6.21 C/km ThetaE index: 0.00 C Layer 1025.0- -0.0 mb Conv cond level (CCL): 1010.00 mb = 183.65 m = 602.53 ft Mean mixing ratio: 0.32 g/kg Conv temperature: -28.64 C = -19.55 F Cap Strength: 25.29 C Lifted Index: 28.51 C Risk: None Lifted Index @700 mb: 22.66 C Showalter Index: 13.81 C Risk: None Total Totals Index: 33.00 C Risk: None Vertical Totals Index: 21.00 C Cross Totals Index: 12.00 C K Index: -17.90 Risk: None Sweat Index: 53.00 Risk: None Energy Index: 3.57 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 57.23 J/kg Max Up Vert Vel: 10.70 m/s Conv Inhibition (B-): 4404.63 J/kg Cap Strength: 28.42 C Lift Cond Lev (LCL): 932.57 mb = 759.07 m = 2490.37 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 338 at 13 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 1025 80 320 1 0.6 -0.8 | 160 12 -4.0 10.9 1 1000 254 320 3 1.9 -2.3 | 164 10 -2.7 9.3 2 925 818 315 7 4.9 -4.9 | 183 7 0.3 6.7 3 850 1444 310 11 8.4 -7.1 | 220 6 3.8 4.6 4 700 2870 310 17 13.0 -10.9 | 265 8 8.4 0.7 5 500 5220 305 31 25.4 -17.8 | 287 22 20.7 -6.1 Wind Parameters Mean winds (0-6000m): 308.2 at 16.7 knts Storm direction: 338.2 at 12.5 knts Shear (0-3000m) pos: 0.0 neg: 3.0 tot: 3.0 10-3/s Storm rel Dir Shear (0-3000m): 110.2 deg Storm rel helicity (0-3000m) pos: 24.8 neg: 0.0 tot: 24.8 m^2/s^2 ave: 8.3 10^-3 m/s^2 rel: 0.76 Storm rel vorticity (0-3000m) horiz: 3.0 stream: 2.3 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 2.41 Bulk Shear: 23.72 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 ------------------------------------------------------------------------------- 500 319 3 165 9| 0.0 4.4 4.4| 5.1 0.0 5.1 10.1 0.47| 4.4 2.1 1000 316 5 173 8| 0.0 4.0 4.0| 10.1 0.0 10.1 10.1 0.63| 4.0 2.5 1500 313 7 183 7| 0.0 3.6 3.6| 14.6 0.0 14.6 9.7 0.73| 3.7 2.7 2000 312 8 193 6| 0.0 3.3 3.3| 17.9 0.0 17.9 8.9 0.77| 3.3 2.5 2500 311 10 205 6| 0.0 3.0 3.0| 21.2 0.0 21.2 8.5 0.78| 3.1 2.4 3000 311 11 217 6| 0.0 3.0 3.0| 24.8 0.0 24.8 8.3 0.76| 3.0 2.3 4000 310 13 241 6| 0.0 3.0 3.0| 32.4 0.0 32.4 8.1 0.67| 3.0 2.0 5000 308 16 259 8| 0.0 3.0 3.0| 38.4 0.0 38.4 7.7 0.58| 3.0 1.7 6000 NO DATA | 0.0 3.0 3.0| | Wrote GIF file: /home/apache/climate/data/raob//U9231/skewt/U9231.skewt.20251208.00.gif