UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041700.upa.cvt Date: 0000Z 17 APR 25 Searching for U6781... Searching the city database file for: U6781 ... Date:0000Z 17 APR 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 227 180 5 SFC 998 244 12.2 5.2 62 7.0 8.6 180 5 285.5 286.5 281.8 301.1 5.56 2 925 874 6.8 3.3 78 3.5 5.1 210 31 286.3 287.2 281.8 301.1 5.24 3 886 1228 4.6 2.1 84 2.5 3.4 207 27 287.5 288.4 282.1 301.8 5.02 4 850 1567 4.6 2.8 88 1.8 3.7 205 23 291.0 291.9 284.1 306.8 5.51 5 837 1693 4.8 3.3 90 1.5 4.0 207 23 292.5 293.5 285.0 309.2 5.80 6 718 2931 -1.7 -3.3 89 1.6 -2.4 222 20 298.4 299.2 285.7 310.9 4.17 7 700 3133 -2.5 -4.2 88 1.7 -3.3 225 19 299.7 300.4 285.9 311.8 4.00 8 691 3235 -2.5 -4.5 86 2.0 -3.4 226 19 300.8 301.6 286.4 312.8 3.96 9 500 5710 -19.1 -21.7 80 2.6 -19.7 250 15 309.8 310.0 286.8 314.2 1.35 10 464 6261 -22.9 -26.4 73 3.5 -23.6 238 14 311.7 311.9 287.1 314.9 0.95 11 400 7330 -31.1 -36.0 62 4.9 -31.7 215 11 314.6 314.7 287.5 316.1 0.44 12 311 9061 -44.7 -49.4 59 4.7 -44.9 241 18 319.1 319.1 288.6 319.6 0.14 13 300 9300 -47.5 -52.2 58 4.7 -47.7 245 19 318.4 318.4 288.3 318.8 0.10 14 277 9826 -52.1 -56.4 60 4.3 -52.2 245 21 319.1 319.1 288.5 319.4 0.07 15 250 10490 -55.3 -59.4 60 4.1 -55.4 245 23 323.9 323.9 290.0 324.1 0.05 16 220 11300 -57.9 -62.4 56 4.5 -58.0 265 21 331.9 331.9 292.3 332.1 0.04 17 201 11869 -57.7 -62.5 54 4.8 -57.8 289 15 340.9 340.9 294.6 341.1 0.04 18 200 11900 -57.5 -62.3 54 4.8 -57.6 290 15 341.7 341.7 294.8 341.9 0.04 19 192 12161 -53.3 -58.3 54 5.0 -53.5 291 16 352.5 352.5 297.3 352.8 0.08 20 150 13750 -54.5 -60.5 47 6.0 -54.7 300 25 376.2 376.2 301.7 376.5 0.07 21 101 16248 -58.7 -66.7 35 8.0 -58.9 315 17 413.1 413.1 306.9 413.4 0.05 22 100 16310 -58.3 -66.3 35 8.0 -58.5 315 17 415.1 415.1 307.2 415.3 0.05 23 70 18560 -56.3 -65.3 31 9.0 -56.8 305 13 463.9 464.0 312.1 464.4 0.08 24 50 20690 -56.7 -66.7 27 10.0 -57.3 360 17 509.9 509.9 315.7 510.5 0.10 25 30 23940 -54.5 -64.5 28 10.0 -55.7 80 19 596.1 596.1 320.5 597.7 0.22 26 22 25925 -54.7 -64.7 28 10.0 -56.2 650.8 650.9 322.8 653.1 0.29 TRP 220 11300 -57.9 -62.4 56 4.5 -58.0 265 21 331.9 331.9 292.3 332.1 0.04 WND Sounding variables and indices 1000-500 mb thick: 5483.00 m Freezing level: 749.12 mb = 2607.05 m = 8553.20 ft Wetbulb zero: 763.07 mb = 2439.35 m = 8003.02 ft Precipitable water: 0.88 inches Sfc-500 mean rel hum: 83.48 % Est. max temperature: 17.88 C = 64.18 F Sfc-Lift cond lev (LCL): 897.69 mb = 1120.11 m = 3674.85 ft T: 5.27 C 700-500 lapse rate: 6.44 C/km ThetaE index: 0.05 C Layer 925.0- 886.0 mb Conv cond level (CCL): 761.70 mb = 2453.92 m = 8050.82 ft Mean mixing ratio: 5.33 g/kg Conv temperature: 22.82 C = 73.07 F Cap Strength: 6.97 C Lifted Index: 9.06 C Risk: None Lifted Index @300 mb: 12.33 C Lifted Index @700 mb: 6.27 C Showalter Index: 5.26 C Risk: None Total Totals Index: 45.60 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 23.70 C Cross Totals Index: 21.90 C K Index: 24.80 Risk: 20-40 % chance of thunderstorms Sweat Index: 207.99 Risk: None Energy Index: 1.48 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 5.02 J/kg Max Up Vert Vel: 3.17 m/s Conv Inhibition (B-): 39282.56 J/kg Cap Strength: 9.01 C Lift Cond Lev (LCL): 881.80 mb = 1266.64 m = 4155.59 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 253 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 ---------------------------------------------------------- 0 998 244 180 5 0.0 5.0 | 93 14 -13.6 0.8 1 925 874 210 31 15.5 26.8 | 185 23 1.9 22.7 2 850 1567 205 23 9.7 20.8 | 167 17 -3.9 16.7 3 700 3133 225 19 13.4 13.4 | 179 9 -0.2 9.3 4 500 5710 250 15 14.1 5.1 | 206 1 0.5 1.0 5 400 7330 215 11 6.3 9.0 | 124 9 -7.3 4.8 6 300 9300 245 19 17.2 8.0 | 223 5 3.6 3.9 7 250 10490 245 23 20.8 9.7 | 232 9 7.2 5.6 8 220 11300 265 21 20.9 1.8 | 288 8 7.3 -2.3 9 200 11900 290 15 14.1 -5.1 | 357 9 0.5 -9.3 10 150 13750 300 25 21.7 -12.5 | 334 18 8.0 -16.7 11 100 16310 315 17 12.0 -12.0 | 6 16 -1.6 -16.2 12 70 18560 305 13 10.6 -7.5 | 14 12 -3.0 -11.6 13 50 20690 360 17 -0.0 -17.0 | 33 25 -13.6 -21.2 14 30 23940 80 19 -18.7 -3.3 | 77 33 -32.3 -7.5 Wind Parameters Mean winds (0-6000m): 223.0 at 19.0 knts Storm direction: 253.0 at 14.2 knts Shear (0-3000m) pos: 3.3 neg: 0.7 tot: 4.1 10-3/s Storm rel Dir Shear (0-3000m): 86.1 deg Storm rel helicity (0-3000m) pos: 119.5 neg: -27.8 tot: 91.6 m^2/s^2 ave: 30.5 10^-3 m/s^2 rel: 0.53 Storm rel vorticity (0-3000m) horiz: 7.4 stream: 3.9 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.91 Bulk Shear: 5.51 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 ------------------------------------------------------------------------------- 500 205 15 143 12| 21.8 0.0 21.8| 84.1 0.0 84.1 168.2 0.95| 22.4 21.3 1000 207 22 167 16| 11.5 0.0 11.5|110.0 -14.4 95.6 95.6 0.74| 15.8 11.7 1500 207 23 168 16| 7.7 1.4 9.1|111.0 -27.8 83.2 55.4 0.57| 12.2 6.9 2000 208 23 169 16| 5.5 1.1 6.6|115.1 -27.8 87.3 43.6 0.56| 9.8 5.5 2500 209 22 170 15| 4.2 0.9 5.1|117.8 -27.8 90.0 36.0 0.54| 8.4 4.5 3000 211 22 171 15| 3.3 0.7 4.1|119.5 -27.8 91.6 30.5 0.53| 7.4 3.9 4000 215 21 173 13| 2.4 0.5 2.9|121.2 -27.8 93.4 23.3 0.51| 6.0 3.0 5000 220 20 175 11| 1.8 0.4 2.2|121.9 -27.8 94.1 18.8 0.49| 5.1 2.5 6000 223 19 176 10| 1.4 0.4 1.8|122.0 -28.8 93.2 15.5 0.42| 4.7 1.9 Wrote GIF file: /home/apache/climate/data/raob//U6781/skewt/U6781.skewt.20250417.00.gif