UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042512.upa.cvt Date: 1200Z 25 APR 25 Searching for U0744... Searching the city database file for: U0744 ... Date:1200Z 25 APR 25 Station: U0744 WMO ident: 20744 Latitude: 72.37 Longitude: 52.73 ------------------------------------------------------------------------------- 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 1009 21 -4.3 -9.3 68 5.0 -5.8 180 1 268.2 268.5 266.8 273.3 1.87 1 1000 91 -4.9 -13.9 49 9.0 -7.2 195 1 268.2 268.5 265.9 271.9 1.30 2 998 107 -4.9 -14.9 45 10.0 -7.4 198 1 268.4 268.6 265.8 271.8 1.20 3 925 697 -10.3 -16.3 61 6.0 -11.6 310 5 268.8 269.0 266.0 272.0 1.16 4 913 797 -11.3 -17.3 61 6.0 -12.6 308 6 268.8 268.9 265.8 271.8 1.08 5 850 1343 -13.3 -22.3 47 9.0 -15.0 295 13 272.2 272.3 267.6 274.4 0.75 6 847 1370 -13.1 -22.1 47 9.0 -14.8 294 13 272.7 272.8 268.0 274.9 0.77 7 805 1755 -15.7 -25.7 42 10.0 -17.3 284 14 273.9 274.0 268.4 275.7 0.59 8 757 2215 -18.7 -27.7 45 9.0 -20.0 271 15 275.5 275.6 269.4 277.1 0.52 9 700 2792 -24.1 -32.1 48 8.0 -25.0 255 17 275.8 275.9 269.2 276.9 0.37 10 690 2897 -24.9 -32.9 47 8.0 -25.8 253 17 276.0 276.1 269.4 277.1 0.35 11 600 3898 -33.1 -41.1 45 8.0 -33.6 237 21 277.8 277.8 270.1 278.4 0.17 12 500 5160 -40.9 -47.9 47 7.0 -41.2 215 25 283.2 283.2 273.2 283.5 0.10 13 476 5493 -42.1 -49.1 46 7.0 -42.3 212 27 285.7 285.7 274.6 286.0 0.09 14 400 6650 -48.9 -56.9 39 8.0 -49.1 200 33 291.4 291.4 277.4 291.6 0.04 15 381 6967 -50.5 -59.5 34 9.0 -50.7 195 35 293.4 293.4 278.4 293.5 0.03 16 311 8300 -45.1 -57.1 25 12.0 -45.5 208 23 318.5 318.5 288.3 318.7 0.05 17 300 8540 -45.1 -58.1 22 13.0 -45.5 210 21 321.8 321.8 289.3 322.0 0.05 18 250 9760 -43.3 -62.3 11 19.0 -44.0 210 15 341.7 341.7 294.8 341.8 0.04 19 224 10503 -42.3 -64.3 7 22.0 -43.2 222 11 354.1 354.1 297.5 354.3 0.03 20 200 11270 -43.5 -68.5 5 25.0 -44.4 235 7 363.9 363.9 299.5 364.0 0.02 21 155 12972 -44.5 -69.5 5 25.0 -45.6 235 5 389.7 389.7 303.8 389.8 0.02 22 150 13190 -45.3 -69.3 5 24.0 -46.3 235 5 392.0 392.0 304.1 392.1 0.02 23 100 15890 -47.5 -71.5 5 24.0 -48.7 195 3 435.9 436.0 309.5 436.1 0.02 24 70 18240 -48.9 -72.9 4 24.0 -50.3 130 5 479.8 479.8 313.4 479.9 0.03 25 50 20450 -48.9 -72.9 4 24.0 -50.7 105 7 528.2 528.2 316.8 528.5 0.04 26 37 22418 -51.7 -74.7 5 23.0 -53.5 102 18 568.6 568.6 319.1 568.8 0.04 27 30 23790 -48.5 -72.5 5 24.0 -51.3 100 25 612.4 612.4 321.2 613.0 0.07 28 25 24987 -49.1 -73.1 4 24.0 -52.2 98 28 643.5 643.5 322.4 644.1 0.08 29 20 26460 -45.9 -69.9 5 24.0 -50.5 95 31 695.7 695.7 324.3 697.0 0.16 30 19 26802 -45.7 -69.7 5 24.0 -50.5 706.6 706.7 324.7 708.1 0.17 31 15 28373 -46.7 -70.7 5 24.0 -51.9 752.7 752.8 326.1 754.4 0.18 32 12 29860 -44.7 -69.7 4 25.0 -51.5 809.4 809.5 327.5 812.0 0.27 TRP 381 6967 -50.5 -59.5 34 9.0 -50.7 195 35 293.4 293.4 278.4 293.5 0.03 WND Sounding variables and indices 1000-500 mb thick: 5069.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.13 inches Sfc-500 mean rel hum: 47.70 % Est. max temperature: -0.75 C = 30.65 F Sfc-Lift cond lev (LCL): 932.20 mb = 636.75 m = 2089.04 ft T: -9.75 C 700-500 lapse rate: 7.09 C/km ThetaE index: 1.50 C Layer 1000.0- 925.0 mb Conv cond level (CCL): 766.94 mb = 2117.66 m = 6947.60 ft Mean mixing ratio: 1.20 g/kg Conv temperature: 2.76 C = 36.96 F Cap Strength: 5.67 C Lifted Index: 9.41 C Risk: None Lifted Index @300 mb: 35.33 C Lifted Index @700 mb: 4.83 C Showalter Index: 7.45 C Risk: None Total Totals Index: 46.20 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 27.60 C Cross Totals Index: 18.60 C K Index: -2.70 Risk: None Sweat Index: 51.00 Risk: None Energy Index: 1.89 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1.13 J/kg Max Up Vert Vel: 1.50 m/s Conv Inhibition (B-): 67251.03 J/kg Cap Strength: 9.07 C Lift Cond Lev (LCL): 848.74 mb = 1354.29 m = 4443.15 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 268 at 13 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 1009 21 180 1 0.0 1.0 | 92 13 -13.0 0.5 1 1000 91 195 1 0.3 1.0 | 92 13 -12.8 0.5 2 925 697 310 5 3.8 -3.2 | 68 10 -9.2 -3.7 3 850 1343 295 13 11.8 -5.5 | 12 6 -1.2 -6.0 4 700 2792 255 17 16.4 4.4 | 221 5 3.4 3.9 5 500 5160 215 25 14.3 20.5 | 184 20 1.3 20.0 6 400 6650 200 33 11.3 31.0 | 177 31 -1.7 30.5 7 381 6967 195 35 9.1 33.8 | 173 34 -4.0 33.3 8 300 8540 210 21 10.5 18.2 | 172 18 -2.5 17.7 9 250 9760 210 15 7.5 13.0 | 156 14 -5.5 12.5 10 200 11270 235 7 5.7 4.0 | 116 8 -7.3 3.6 11 150 13190 235 5 4.1 2.9 | 105 9 -8.9 2.4 12 100 15890 195 3 0.8 2.9 | 101 12 -12.2 2.4 13 70 18240 130 5 -3.8 3.2 | 99 17 -16.9 2.8 14 50 20450 105 7 -6.8 1.8 | 94 20 -19.8 1.4 15 30 23790 100 25 -24.6 4.3 | 96 38 -37.6 3.9 16 20 26460 95 31 -30.9 2.7 | 93 44 -43.9 2.2 Wind Parameters Mean winds (0-6000m): 238.0 at 17.4 knts Storm direction: 268.0 at 13.0 knts Shear (0-3000m) pos: 1.6 neg: 2.4 tot: 4.0 10-3/s Storm rel Dir Shear (0-3000m): 123.3 deg Storm rel helicity (0-3000m) pos: 1.6 neg: -34.9 tot: -33.3 m^2/s^2 ave: -11.1 10^-3 m/s^2 rel: -0.73 Storm rel vorticity (0-3000m) horiz: 4.9 stream: -3.5 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.04 Bulk Shear: 31.04 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 ------------------------------------------------------------------------------- 500 258 2 90 11| 4.2 0.0 4.2| 1.6 -4.6 -3.0 -5.9 -0.27| 4.8 -1.3 1000 302 4 74 10| 4.9 0.0 4.9| 1.6 -18.9 -17.3 -17.3 -0.64| 5.9 -3.8 1500 297 7 64 8| 3.3 1.7 5.0| 1.6 -27.0 -25.3 -16.9 -0.71| 5.8 -4.1 2000 291 9 55 6| 2.5 2.0 4.5| 1.6 -29.7 -28.1 -14.0 -0.72| 5.3 -3.8 2500 283 10 50 4| 2.0 2.3 4.2| 1.6 -32.4 -30.7 -12.3 -0.75| 5.1 -3.8 3000 276 11 50 2| 1.6 2.4 4.0| 1.6 -34.9 -33.3 -11.1 -0.73| 4.9 -3.5 4000 263 13 186 1| 1.2 2.5 3.8| 1.6 -41.8 -40.2 -10.0 -0.67| 4.5 -3.0 5000 249 15 195 5| 1.0 2.6 3.6| 1.6 -57.7 -56.0 -11.2 -0.64| 4.4 -2.8 6000 238 17 191 9| 0.8 2.7 3.6| 1.6 -69.8 -68.1 -11.4 -0.58| 4.3 -2.5 Wrote GIF file: /home/apache/climate/data/raob//U0744/skewt/U0744.skewt.20250425.12.gif