UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101812.upa.cvt Date: 1200Z 18 OCT 25 Searching for U6781... Searching the city database file for: U6781 ... Date:1200Z 18 OCT 25 Station: U6781 WMO ident: 26781 Latitude: 54.75 Longitude: 32.07 ------------------------------------------------------------------------------- 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 140 SFC 988 240 8.6 7.5 93 1.1 8.0 160 1 282.7 283.9 281.7 300.9 6.59 2 968 409 6.2 4.3 88 1.9 5.3 169 5 282.0 282.9 279.9 296.8 5.38 3 925 780 3.8 2.3 90 1.5 3.1 190 13 283.2 284.0 279.9 296.8 4.88 4 850 1465 -0.5 -1.8 91 1.3 -1.0 200 13 285.6 286.3 279.9 296.8 3.94 5 758 2372 -5.3 -7.6 84 2.3 -6.1 197 11 289.9 290.4 280.6 298.3 2.84 6 700 2992 -9.5 -11.7 84 2.2 -10.2 195 9 292.0 292.4 280.7 298.6 2.23 7 598 4188 -18.1 -20.7 80 2.6 -18.7 207 16 295.5 295.7 281.0 299.3 1.23 8 577 4453 -20.5 -25.1 67 4.6 -21.4 209 17 295.7 295.8 280.6 298.4 0.86 9 524 5160 -24.9 -31.9 52 7.0 -25.9 217 21 298.6 298.7 281.5 300.3 0.50 10 500 5500 -25.9 -31.9 57 6.0 -26.8 220 23 301.5 301.6 282.7 303.2 0.53 11 493 5602 -26.3 -32.3 57 6.0 -27.1 221 24 302.2 302.3 283.0 303.9 0.52 12 404 7011 -36.5 -40.0 70 3.5 -36.8 234 34 306.7 306.7 284.4 307.7 0.29 13 400 7080 -37.1 -40.9 68 3.8 -37.4 235 35 306.8 306.8 284.5 307.7 0.27 14 300 9010 -51.5 -56.5 55 5.0 -51.6 220 38 312.8 312.8 286.4 313.0 0.06 15 283 9386 -53.9 -58.9 54 5.0 -54.0 224 40 314.6 314.6 287.0 314.8 0.05 16 280 9455 -54.1 -59.1 54 5.0 -54.2 225 40 315.3 315.3 287.2 315.4 0.05 17 250 10180 -55.1 -60.1 54 5.0 -55.2 240 44 324.1 324.2 290.0 324.3 0.05 18 218 11052 -56.7 -62.7 47 6.0 -56.8 252 40 334.6 334.6 293.0 334.8 0.04 19 200 11600 -55.1 -62.1 42 7.0 -55.2 260 38 345.5 345.5 295.7 345.7 0.04 20 170 12644 -52.7 -59.7 42 7.0 -52.9 260 33 365.9 365.9 299.9 366.3 0.07 21 150 13450 -53.9 -61.9 37 8.0 -54.2 260 29 377.2 377.2 301.8 377.5 0.06 22 117 15033 -57.3 -66.3 31 9.0 -57.5 260 25 398.7 398.7 305.0 398.9 0.04 23 100 16030 -55.3 -65.3 28 10.0 -55.7 260 23 420.9 420.9 307.9 421.2 0.06 24 84 17134 -58.7 -68.7 26 10.0 -59.0 435.5 435.5 309.4 435.7 0.04 25 76 17765 -56.9 -65.9 31 9.0 -57.3 451.9 451.9 311.1 452.3 0.07 TRP 280 9455 -54.1 -59.1 54 5.0 -54.2 225 40 315.3 315.3 287.2 315.4 0.05 WND Sounding variables and indices 1000-500 mb thick: 5360.00 m Freezing level: 858.72 mb = 1385.35 m = 4545.05 ft Wetbulb zero: 868.92 mb = 1286.62 m = 4221.15 ft Precipitable water: 0.58 inches Sfc-500 mean rel hum: 79.32 % Est. max temperature: 12.02 C = 53.64 F Sfc-Lift cond lev (LCL): 971.69 mb = 377.19 m = 1237.47 ft T: 6.65 C 700-500 lapse rate: 6.54 C/km ThetaE index: 4.08 C Layer 968.0- 850.0 mb Conv cond level (CCL): 903.17 mb = 973.44 m = 3193.68 ft Mean mixing ratio: 5.11 g/kg Conv temperature: 9.76 C = 49.56 F Cap Strength: 3.15 C Lifted Index: 5.02 C Risk: None Lifted Index @300 mb: 11.09 C Lifted Index @700 mb: 1.55 C Showalter Index: 5.31 C Risk: None Total Totals Index: 49.50 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 25.40 C Cross Totals Index: 24.10 C K Index: 21.40 Risk: 20-40 % chance of thunderstorms Sweat Index: 59.00 Risk: None Energy Index: 1.27 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 9.22 J/kg Max Up Vert Vel: 4.29 m/s Conv Inhibition (B-): 16313.29 J/kg Cap Strength: 4.60 C Lift Cond Lev (LCL): 915.27 mb = 865.65 m = 2840.04 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 240 at 11 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 ---------------------------------------------------------- 0 988 240 160 1 -0.3 0.9 | 65 11 -10.0 -4.7 1 925 780 190 13 2.3 12.8 | 134 10 -7.4 7.2 2 850 1465 200 13 4.4 12.2 | 142 8 -5.2 6.6 3 700 2992 195 9 2.3 8.7 | 113 8 -7.3 3.1 4 500 5500 220 23 14.8 17.6 | 203 13 5.1 12.0 5 400 7080 235 35 28.7 20.1 | 233 24 19.0 14.5 6 300 9010 220 38 24.4 29.1 | 212 28 14.8 23.5 7 280 9455 225 40 28.3 28.3 | 219 29 18.6 22.7 8 250 10180 240 44 38.1 22.0 | 240 33 28.4 16.4 9 200 11600 260 38 37.4 6.6 | 268 28 27.7 1.0 10 150 13450 260 29 28.6 5.0 | 272 19 18.9 -0.6 11 100 16030 260 23 22.7 4.0 | 277 13 13.0 -1.6 Wind Parameters Mean winds (0-6000m): 209.9 at 14.9 knts Storm direction: 239.9 at 11.2 knts Shear (0-3000m) pos: 2.1 neg: 0.5 tot: 2.6 10-3/s Storm rel Dir Shear (0-3000m): 58.2 deg Storm rel helicity (0-3000m) pos: 40.4 neg: -8.3 tot: 32.1 m^2/s^2 ave: 10.7 10^-3 m/s^2 rel: 0.56 Storm rel vorticity (0-3000m) horiz: 3.4 stream: 1.9 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.83 Bulk Shear: 11.17 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 ------------------------------------------------------------------------------- 500 188 7 96 9| 11.6 0.0 11.6| 32.0 0.0 32.0 64.0 1.00| 12.0 12.0 1000 191 10 117 9| 6.3 0.0 6.3| 36.8 0.0 36.8 36.8 0.95| 7.3 6.9 1500 194 11 125 9| 4.0 0.0 4.0| 37.7 -1.5 36.2 24.1 0.85| 5.3 4.5 2000 195 11 126 8| 3.0 0.3 3.3| 37.7 -4.4 33.3 16.6 0.70| 4.3 3.0 2500 196 11 126 8| 2.4 0.6 2.9| 37.7 -7.2 30.5 12.2 0.57| 3.7 2.2 3000 196 11 124 8| 2.1 0.5 2.6| 40.4 -8.3 32.1 10.7 0.56| 3.4 1.9 4000 198 11 130 8| 2.3 0.3 2.7| 53.1 -8.3 44.8 11.2 0.66| 3.4 2.2 5000 204 13 144 8| 2.4 0.3 2.7| 68.5 -8.3 60.2 12.0 0.70| 3.3 2.3 6000 210 15 163 8| 2.6 0.2 2.9| 90.6 -8.3 82.3 13.7 0.70| 3.5 2.4 Wrote GIF file: /home/apache/climate/data/raob//U6781/skewt/U6781.skewt.20251018.12.gif