UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120912.upa.cvt Date: 1200Z 9 DEC 25 Searching for U2845... Searching the city database file for: U2845 ... Date:1200Z 9 DEC 25 Station: U2845 WMO ident: 22845 Latitude: 61.50 Longitude: 38.93 ------------------------------------------------------------------------------- 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 81 180 7 SFC 995 121 -0.3 -1.6 91 1.3 -0.8 180 7 273.2 273.8 272.6 282.5 3.41 2 925 701 -4.1 -6.5 83 2.4 -4.9 205 29 275.1 275.5 272.4 282.2 2.54 3 912 812 -4.7 -7.1 83 2.4 -5.5 210 28 275.6 276.0 272.6 282.5 2.46 4 895 961 -2.5 -4.6 85 2.1 -3.3 217 27 279.4 279.9 275.6 287.9 3.03 5 856 1313 -4.5 -6.9 83 2.4 -5.4 233 23 280.9 281.3 275.8 288.4 2.66 6 850 1368 -4.5 -6.9 83 2.4 -5.4 235 23 281.4 281.9 276.2 289.0 2.68 7 799 1854 -5.1 -7.4 84 2.3 -5.9 238 23 285.8 286.3 278.5 293.7 2.74 8 700 2880 -11.9 -14.3 82 2.4 -12.6 245 23 289.3 289.6 279.0 294.7 1.80 9 621 3789 -17.5 -20.0 81 2.5 -18.1 250 25 293.0 293.2 280.0 296.9 1.26 10 618 3825 -17.3 -19.9 80 2.6 -17.9 251 25 293.6 293.8 280.3 297.6 1.27 11 612 3898 -17.9 -20.6 79 2.7 -18.5 251 25 293.7 294.0 280.2 297.5 1.21 12 500 5380 -28.9 -33.3 66 4.4 -29.4 260 29 297.8 297.9 281.0 299.3 0.46 13 410 6771 -37.9 -42.3 63 4.4 -38.2 256 33 303.6 303.6 283.1 304.4 0.23 14 400 6940 -39.5 -43.8 64 4.3 -39.8 255 33 303.7 303.7 283.1 304.3 0.20 15 300 8840 -56.1 -60.3 59 4.2 -56.2 255 42 306.3 306.3 284.0 306.4 0.04 16 292 9011 -57.7 -62.2 56 4.5 -57.8 255 41 306.4 306.4 284.0 306.5 0.03 17 270 9501 -60.1 -64.4 57 4.3 -60.2 255 38 309.8 309.8 285.3 309.9 0.02 18 250 9980 -60.9 -65.0 58 4.1 -60.9 250 38 315.5 315.5 287.3 315.6 0.02 19 244 10131 -61.1 -65.2 58 4.1 -61.2 252 37 317.4 317.4 287.9 317.5 0.02 20 236 10339 -59.7 -64.1 56 4.4 -59.7 254 36 322.6 322.6 289.6 322.7 0.03 21 221 10748 -60.7 -64.8 58 4.1 -60.7 258 34 327.2 327.2 290.9 327.3 0.03 22 208 11125 -60.7 -64.8 58 4.1 -60.7 262 32 332.9 332.9 292.5 333.0 0.03 23 203 11277 -59.3 -63.7 57 4.4 -59.4 264 31 337.4 337.4 293.7 337.6 0.04 24 200 11370 -59.9 -64.2 57 4.3 -60.0 265 31 337.9 337.9 293.9 338.0 0.03 25 150 13160 -62.9 -67.8 51 4.9 -63.0 285 33 361.7 361.7 299.1 361.8 0.03 26 100 15630 -67.9 -73.9 42 6.0 -67.9 290 38 396.5 396.5 304.8 396.6 0.02 27 90 16260 -69.7 -74.7 48 5.0 -69.8 293 41 405.1 405.1 305.9 405.2 0.02 28 70 17750 -71.3 -77.3 40 6.0 -71.3 300 48 431.8 431.9 309.0 431.9 0.01 29 50 19720 -75.1 -81.1 39 6.0 -75.2 305 48 466.5 466.5 312.4 466.6 0.01 30 36 21609 -78.5 -84.5 37 6.0 -78.6 503.7 503.7 315.2 503.7 0.01 TRP 270 9501 -60.1 -64.4 57 4.3 -60.2 255 38 309.8 309.8 285.3 309.9 0.02 WND Sounding variables and indices 1000-500 mb thick: 5299.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.42 inches Sfc-500 mean rel hum: 80.25 % Est. max temperature: 8.29 C = 46.93 F Sfc-Lift cond lev (LCL): 974.87 mb = 283.62 m = 930.52 ft T: -1.36 C 700-500 lapse rate: 6.80 C/km ThetaE index: 0.35 C Layer 925.0- 912.0 mb Conv cond level (CCL): 764.00 mb = 2201.69 m = 7223.31 ft Mean mixing ratio: 2.87 g/kg Conv temperature: 13.45 C = 56.21 F Cap Strength: 11.03 C Lifted Index: 12.80 C Risk: None Lifted Index @300 mb: 16.65 C Lifted Index @700 mb: 8.71 C Showalter Index: 8.05 C Risk: None Total Totals Index: 46.40 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 24.40 C Cross Totals Index: 22.00 C K Index: 15.10 Risk: < 20 % chance of thunderstorms Sweat Index: 152.83 Risk: None Energy Index: 2.18 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 15.70 J/kg Max Up Vert Vel: 5.60 m/s Conv Inhibition (B-): 30648.39 J/kg Cap Strength: 12.68 C Lift Cond Lev (LCL): 915.93 mb = 778.51 m = 2554.12 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 274 at 19 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 ---------------------------------------------------------- 0 995 121 180 7 0.0 7.0 | 114 20 -18.7 8.4 1 925 701 205 29 12.3 26.3 | 167 28 -6.5 27.6 2 850 1368 235 23 18.8 13.2 | 180 15 0.1 14.5 3 700 2880 245 23 20.8 9.7 | 191 11 2.1 11.1 4 500 5380 260 29 28.6 5.0 | 237 12 9.8 6.4 5 400 6940 255 33 31.9 8.5 | 233 16 13.2 9.9 6 300 8840 255 42 40.6 10.9 | 241 25 21.9 12.2 7 270 9501 255 38 36.7 9.8 | 238 21 18.0 11.2 8 250 9980 250 38 35.7 13.0 | 230 22 17.0 14.4 9 200 11370 265 31 30.9 2.7 | 252 13 12.2 4.1 10 150 13160 285 33 31.9 -8.5 | 299 15 13.2 -7.2 11 100 15630 290 38 35.7 -13.0 | 304 21 17.0 -11.6 12 70 17750 300 48 41.6 -24.0 | 315 32 22.9 -22.6 13 50 19720 305 48 39.3 -27.5 | 322 33 20.6 -26.2 Wind Parameters Mean winds (0-6000m): 244.1 at 25.0 knts Storm direction: 274.1 at 18.8 knts Shear (0-3000m) pos: 3.7 neg: 0.0 tot: 3.7 10-3/s Storm rel Dir Shear (0-3000m): 81.0 deg Storm rel helicity (0-3000m) pos: 182.8 neg: 0.0 tot: 182.8 m^2/s^2 ave: 60.9 10^-3 m/s^2 rel: 0.71 Storm rel vorticity (0-3000m) horiz: 7.3 stream: 5.2 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 0.38 Bulk Shear: 41.38 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 ------------------------------------------------------------------------------- 500 199 16 142 21| 20.2 0.0 20.2|117.9 0.0 117.9 235.8 0.94| 20.6 19.5 1000 207 22 157 22| 10.7 0.0 10.7|166.8 0.0 166.8 166.8 0.80| 16.9 13.4 1500 215 22 164 20| 6.9 0.0 6.9|173.9 0.0 173.9 115.9 0.72| 13.3 9.5 2000 221 23 168 19| 5.3 0.0 5.3|176.6 0.0 176.6 88.3 0.71| 10.3 7.3 2500 226 23 172 17| 4.3 0.0 4.3|179.2 0.0 179.2 71.7 0.71| 8.5 6.0 3000 229 23 175 16| 3.7 0.0 3.7|182.8 0.0 182.8 60.9 0.71| 7.3 5.2 4000 235 23 181 15| 3.2 0.0 3.2|193.1 0.0 193.1 48.3 0.73| 6.0 4.4 5000 240 24 189 14| 2.9 0.0 2.9|204.0 0.0 204.0 40.8 0.75| 5.1 3.9 6000 244 25 197 13| 2.5 0.1 2.6|206.9 -1.3 205.6 34.3 0.72| 4.6 3.3 Wrote GIF file: /home/apache/climate/data/raob//U2845/skewt/U2845.skewt.20251209.12.gif