UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041800.upa.cvt Date: 0000Z 18 APR 25 Searching for U1946... Searching the city database file for: U1946 ... Date:0000Z 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 1002 42 -17.1 -19.5 82 2.4 -17.5 50 3 255.9 256.0 255.5 258.1 0.81 1 1000 57 -16.1 -18.8 80 2.7 -16.6 45 3 257.0 257.2 256.6 259.4 0.86 2 999 65 -14.3 -17.4 77 3.1 -14.9 44 3 258.9 259.1 258.3 261.6 0.98 3 998 72 -9.7 -13.6 73 3.9 -10.6 43 3 263.6 263.8 262.7 267.2 1.34 4 925 658 -9.7 -14.4 69 4.7 -10.8 310 7 269.4 269.6 266.8 273.2 1.35 5 850 1309 -10.7 -18.7 52 8.0 -12.5 315 7 274.9 275.1 269.9 277.9 1.03 6 842 1382 -10.7 -19.7 48 9.0 -12.6 315 7 275.7 275.8 270.2 278.5 0.95 7 700 2782 -18.1 -34.1 23 16.0 -20.1 320 17 282.4 282.5 273.1 283.4 0.30 8 686 2932 -19.1 -36.1 21 17.0 -21.1 319 16 283.0 283.0 273.3 283.8 0.25 9 681 2987 -19.5 -35.5 23 16.0 -21.4 319 16 283.1 283.2 273.5 284.0 0.27 10 641 3434 -20.9 -31.9 37 11.0 -22.4 317 14 286.5 286.5 275.5 287.8 0.41 11 614 3751 -21.3 -33.3 33 12.0 -22.9 316 12 289.6 289.6 277.0 290.8 0.38 12 500 5230 -32.5 -47.5 21 15.0 -33.4 310 5 293.4 293.4 278.5 293.8 0.10 13 493 5329 -33.3 -48.3 21 15.0 -34.1 308 5 293.6 293.6 278.6 294.0 0.10 14 400 6760 -44.5 -53.5 36 9.0 -44.8 275 7 297.2 297.2 280.2 297.4 0.07 15 335 7931 -53.5 -61.5 37 8.0 -53.6 244 13 300.3 300.3 281.5 300.4 0.03 16 310 8430 -55.9 -63.9 36 8.0 -56.0 230 15 303.7 303.7 282.9 303.8 0.02 17 307 8492 -55.7 -63.7 36 8.0 -55.8 230 15 304.8 304.8 283.4 304.9 0.02 18 300 8640 -54.1 -62.1 37 8.0 -54.2 230 15 309.1 309.1 285.0 309.2 0.03 19 287 8924 -51.7 -59.7 38 8.0 -51.9 226 15 316.5 316.5 287.6 316.6 0.04 20 250 9820 -47.9 -58.9 27 11.0 -48.3 215 15 334.9 334.9 293.1 335.1 0.05 21 245 9953 -46.9 -57.9 27 11.0 -47.3 215 15 338.3 338.3 294.0 338.5 0.06 22 200 11300 -45.5 -63.5 11 18.0 -46.2 215 15 360.7 360.7 298.9 360.9 0.04 23 150 13220 -44.7 -69.7 4 25.0 -45.7 210 17 393.0 393.0 304.2 393.1 0.02 24 139 13728 -44.9 -70.9 4 26.0 -46.0 214 16 401.3 401.3 305.4 401.4 0.02 25 110 15284 -46.7 -72.7 4 26.0 -47.9 225 12 425.7 425.7 308.4 425.8 0.02 26 100 15910 -50.7 -75.7 4 25.0 -51.5 230 11 429.8 429.8 308.8 429.8 0.01 27 70 18240 -51.9 -76.9 3 25.0 -52.9 240 15 473.4 473.4 312.9 473.4 0.02 28 68 18428 -51.3 -76.3 4 25.0 -52.4 478.6 478.6 313.4 478.7 0.02 TRP 310 8430 -55.9 -63.9 36 8.0 -56.0 230 15 303.7 303.7 282.9 303.8 0.02 WND Sounding variables and indices 1000-500 mb thick: 5173.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.15 inches Sfc-500 mean rel hum: 39.20 % Est. max temperature: 1.79 C = 35.22 F Sfc-Lift cond lev (LCL): 963.46 mb = 343.80 m = 1127.93 ft T: -9.70 C 700-500 lapse rate: 5.88 C/km ThetaE index: 0.00 C Layer 1002.0-584860314976236483507101602781593600.0 mb Conv cond level (CCL): 1000.00 mb = 57.00 m = 187.01 ft Mean mixing ratio: 1.32 g/kg Conv temperature: -13.62 C = 7.49 F Cap Strength: 17.00 C Lifted Index: 18.81 C Risk: None Lifted Index @300 mb: 27.21 C Lifted Index @700 mb: 11.82 C Showalter Index: 13.07 C Risk: None Total Totals Index: 35.60 C Risk: None Vertical Totals Index: 21.80 C Cross Totals Index: 13.80 C K Index: -12.90 Risk: None Sweat Index: 19.00 Risk: None Energy Index: 3.36 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 23.26 J/kg Max Up Vert Vel: 6.82 m/s Conv Inhibition (B-): 31994.38 J/kg Cap Strength: 18.75 C Lift Cond Lev (LCL): 884.87 mb = 999.48 m = 3279.08 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 347 at 7 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 1002 42 50 3 -2.3 -1.9 | 142 6 -3.9 5.0 1 1000 57 45 3 -2.1 -2.1 | 142 6 -3.7 4.8 2 925 658 310 7 5.4 -4.5 | 237 4 3.7 2.4 3 850 1309 315 7 4.9 -4.9 | 240 4 3.3 2.0 4 700 2782 320 17 10.9 -13.0 | 303 11 9.3 -6.1 5 500 5230 310 5 3.8 -3.2 | 211 4 2.2 3.7 6 400 6760 275 7 7.0 -0.6 | 220 8 5.4 6.3 7 310 8430 230 15 11.5 9.6 | 211 19 9.9 16.6 8 300 8640 230 15 11.5 9.6 | 211 19 9.9 16.6 9 250 9820 215 15 8.6 12.3 | 200 20 7.0 19.2 10 200 11300 215 15 8.6 12.3 | 200 20 7.0 19.2 11 150 13220 210 17 8.5 14.7 | 198 23 6.9 21.6 12 100 15910 230 11 8.4 7.1 | 206 16 6.8 14.0 13 70 18240 240 15 13.0 7.5 | 218 18 11.4 14.4 Wind Parameters Mean winds (0-6000m): 316.8 at 9.5 knts Storm direction: 346.8 at 7.1 knts Shear (0-3000m) pos: 1.4 neg: 1.4 tot: 2.9 10-3/s Storm rel Dir Shear (0-3000m): 157.8 deg Storm rel helicity (0-3000m) pos: 12.9 neg: -2.4 tot: 10.6 m^2/s^2 ave: 3.5 10^-3 m/s^2 rel: 0.45 Storm rel vorticity (0-3000m) horiz: 3.6 stream: 1.6 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 4.38 Bulk Shear: 5.31 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 ------------------------------------------------------------------------------- 500 352 5 157 3| 0.0 6.7 6.7| 1.6 -0.8 0.8 1.6 0.37| 7.5 2.8 1000 322 6 218 3| 0.0 4.1 4.1| 2.2 -0.8 1.4 1.4 0.35| 5.0 1.8 1500 319 6 229 3| 0.6 2.7 3.3| 3.9 -0.8 3.1 2.1 0.43| 4.0 1.7 2000 318 7 245 4| 1.3 2.0 3.3| 7.4 -0.8 6.6 3.3 0.50| 3.9 1.9 2500 319 9 263 4| 1.7 1.6 3.4| 11.3 -0.8 10.5 4.2 0.50| 3.8 1.9 3000 319 10 276 5| 1.4 1.4 2.9| 12.9 -2.4 10.6 3.5 0.45| 3.6 1.6 4000 319 11 281 6| 1.1 0.7 1.8| 12.9 -8.8 4.2 1.0 0.24| 3.3 0.8 5000 318 10 278 5| 0.9 0.5 1.4| 12.9 -14.3 -1.4 -0.3 0.06| 3.2 0.2 6000 317 9 270 5| 0.7 0.6 1.3| 14.0 -15.3 -1.3 -0.2 0.05| 2.9 0.1 Wrote GIF file: /home/apache/climate/data/raob//U1946/skewt/U1946.skewt.20250418.00.gif