UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041812.upa.cvt Date: 1200Z 18 APR 25 Searching for U1946... Searching the city database file for: U1946 ... Date:1200Z 18 APR 25 Station: U1946 WMO ident: 21946 Latitude: 70.62 Longitude: 147.90 ------------------------------------------------------------------------------- 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 1001 45 -11.1 -14.2 78 3.1 -11.8 150 1 262.0 262.2 261.3 265.4 1.27 1 1000 53 -10.7 -13.9 77 3.2 -11.4 155 1 262.5 262.7 261.7 266.0 1.30 2 995 92 -8.1 -11.9 74 3.8 -9.1 162 2 265.4 265.7 264.4 269.6 1.54 3 976 242 -5.7 -10.4 69 4.7 -7.1 189 5 269.3 269.6 267.5 274.2 1.77 4 940 536 -7.1 -15.1 53 8.0 -9.1 242 11 270.8 271.0 267.6 274.3 1.26 5 925 661 -7.7 -15.7 53 8.0 -9.6 265 13 271.4 271.6 267.9 274.9 1.21 6 850 1315 -11.3 -19.3 52 8.0 -13.0 270 11 274.3 274.5 269.4 277.1 0.98 7 801 1768 -14.5 -19.5 66 5.0 -15.5 278 12 275.6 275.8 270.2 278.6 1.02 8 798 1796 -14.5 -19.5 66 5.0 -15.5 278 12 275.9 276.1 270.4 278.9 1.02 9 744 2325 -15.9 -32.9 22 17.0 -18.2 287 14 280.0 280.0 271.7 281.0 0.32 10 700 2782 -18.7 -32.7 28 14.0 -20.5 295 15 281.8 281.8 272.8 282.9 0.35 11 536 4728 -29.5 -42.5 27 13.0 -30.5 299 20 291.2 291.3 277.6 291.8 0.17 12 500 5220 -33.3 -44.3 32 11.0 -34.0 300 21 292.4 292.5 278.1 292.9 0.15 13 400 6750 -44.9 -55.9 28 11.0 -45.2 290 19 296.6 296.6 279.9 296.8 0.05 14 364 7375 -50.1 -60.1 30 10.0 -50.3 286 17 297.8 297.8 280.4 297.9 0.03 15 306 8502 -53.9 -63.9 28 10.0 -54.1 280 13 307.6 307.6 284.5 307.7 0.02 16 300 8630 -53.5 -63.5 28 10.0 -53.7 280 13 309.9 309.9 285.3 310.0 0.02 17 274 9214 -50.9 -60.9 30 10.0 -51.1 282 14 321.8 321.9 289.3 322.0 0.04 18 250 9810 -49.9 -59.9 30 10.0 -50.2 285 15 331.9 331.9 292.3 332.1 0.05 19 200 11280 -47.7 -61.7 18 14.0 -48.2 255 13 357.2 357.2 298.2 357.4 0.05 20 171 12314 -45.1 -62.1 13 17.0 -45.9 247 14 377.9 377.9 301.9 378.2 0.05 21 150 13180 -47.3 -66.3 10 19.0 -48.1 240 15 388.6 388.6 303.6 388.7 0.03 22 145 13405 -47.7 -66.7 9 19.0 -48.5 239 14 391.7 391.7 304.0 391.8 0.03 23 100 15870 -47.1 -71.1 5 24.0 -48.3 230 9 436.7 436.7 309.6 436.9 0.03 24 79 17408 -51.5 -75.5 4 24.0 -52.5 233 12 458.1 458.1 311.6 458.2 0.02 25 70 18190 -51.7 -76.7 3 25.0 -52.8 235 13 473.8 473.8 313.0 473.9 0.02 26 60 19191 -52.3 -77.3 3 25.0 -53.4 249 11 493.8 493.8 314.5 493.9 0.02 27 50 20370 -53.3 -77.3 4 24.0 -54.5 265 9 517.9 517.9 316.2 518.0 0.02 28 47 20769 -52.3 -77.3 3 25.0 -53.7 529.5 529.5 316.9 529.7 0.02 29 39 21975 -52.9 -76.9 4 24.0 -54.4 557.0 557.0 318.5 557.2 0.03 TRP 306 8502 -53.9 -63.9 28 10.0 -54.1 280 13 307.6 307.6 284.5 307.7 0.02 WND Sounding variables and indices 1000-500 mb thick: 5167.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.15 inches Sfc-500 mean rel hum: 39.12 % Est. max temperature: 1.20 C = 34.15 F Sfc-Lift cond lev (LCL): 952.28 mb = 434.35 m = 1425.01 ft T: -6.62 C 700-500 lapse rate: 5.99 C/km ThetaE index: 0.00 C Layer 1001.0- -0.0 mb Conv cond level (CCL): 729.39 mb = 2473.83 m = 8116.15 ft Mean mixing ratio: 1.41 g/kg Conv temperature: 7.48 C = 45.47 F Cap Strength: 15.01 C Lifted Index: 15.58 C Risk: None Lifted Index @300 mb: 25.64 C Lifted Index @700 mb: 8.76 C Showalter Index: 12.85 C Risk: None Total Totals Index: 36.00 C Risk: None Vertical Totals Index: 22.00 C Cross Totals Index: 14.00 C K Index: -11.30 Risk: None Sweat Index: 43.00 Risk: None Energy Index: 3.34 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 24.14 J/kg Max Up Vert Vel: 6.95 m/s Conv Inhibition (B-): 41081.77 J/kg Cap Strength: 15.46 C Lift Cond Lev (LCL): 858.37 mb = 1239.17 m = 4065.47 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 321 at 12 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 1001 45 150 1 -0.5 0.9 | 142 13 -7.7 9.9 1 1000 53 155 1 -0.4 0.9 | 142 13 -7.7 9.9 2 925 661 265 13 13.0 1.1 | 209 12 5.7 10.2 3 850 1315 270 11 11.0 -0.0 | 203 10 3.8 9.0 4 700 2782 295 15 13.6 -6.3 | 247 7 6.3 2.7 5 500 5220 300 21 18.2 -10.5 | 278 11 10.9 -1.5 6 400 6750 290 19 17.9 -6.5 | 257 11 10.6 2.5 7 306 8502 280 13 12.8 -2.3 | 219 9 5.6 6.8 8 300 8630 280 13 12.8 -2.3 | 219 9 5.6 6.8 9 250 9810 285 15 14.5 -3.9 | 235 9 7.2 5.1 10 200 11280 255 13 12.6 3.4 | 203 13 5.3 12.4 11 150 13180 240 15 13.0 7.5 | 199 17 5.7 16.5 12 100 15870 230 9 6.9 5.8 | 179 15 -0.4 14.8 13 70 18190 235 13 10.6 7.5 | 192 17 3.4 16.5 14 50 20370 265 9 9.0 0.8 | 190 10 1.7 9.8 Wind Parameters Mean winds (0-6000m): 291.2 at 15.4 knts Storm direction: 321.2 at 11.6 knts Shear (0-3000m) pos: 2.8 neg: 0.0 tot: 2.8 10-3/s Storm rel Dir Shear (0-3000m): 109.7 deg Storm rel helicity (0-3000m) pos: 76.6 neg: -2.8 tot: 73.8 m^2/s^2 ave: 24.6 10^-3 m/s^2 rel: 0.80 Storm rel vorticity (0-3000m) horiz: 4.8 stream: 3.8 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 1.12 Bulk Shear: 21.62 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 ------------------------------------------------------------------------------- 500 239 6 169 12| 11.1 0.0 11.1| 48.2 0.0 48.2 96.3 0.91| 14.0 12.7 1000 264 9 190 10| 6.3 0.0 6.3| 62.1 -1.6 60.6 60.6 0.82| 10.1 8.2 1500 266 10 195 10| 4.2 0.0 4.2| 64.1 -2.8 61.3 40.9 0.76| 7.4 5.6 2000 270 10 199 10| 3.5 0.0 3.5| 68.8 -2.8 66.0 33.0 0.77| 6.1 4.7 2500 275 11 205 9| 3.1 0.0 3.1| 73.4 -2.8 70.6 28.2 0.79| 5.4 4.2 3000 279 12 211 8| 2.8 0.0 2.8| 76.6 -2.8 73.8 24.6 0.80| 4.8 3.8 4000 285 13 223 8| 2.4 0.0 2.4| 80.8 -2.8 78.0 19.5 0.79| 3.9 3.1 5000 289 14 236 8| 2.2 0.0 2.2| 85.3 -2.8 82.5 16.5 0.79| 3.4 2.7 6000 291 15 244 8| 1.8 0.2 2.0| 85.9 -9.0 76.9 12.8 0.68| 3.1 2.1 Wrote GIF file: /home/apache/climate/data/raob//U1946/skewt/U1946.skewt.20250418.12.gif