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 U2271... Searching the city database file for: U2271 ... Date:1200Z 25 APR 25 Station: U2271 WMO ident: 22271 Latitude: 67.88 Longitude: 44.13 ------------------------------------------------------------------------------- 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 1013 11 -0.5 -3.4 81 2.9 -1.6 250 7 271.6 272.1 270.9 279.6 2.93 1 1000 114 -1.3 -4.8 77 3.5 -2.6 250 11 271.9 272.3 270.6 279.1 2.67 2 925 729 -5.7 -11.7 63 6.0 -7.4 270 15 273.5 273.8 270.1 278.2 1.68 3 905 900 -7.3 -14.3 57 7.0 -9.1 270 16 273.5 273.8 269.6 277.5 1.39 4 850 1385 -11.5 -17.5 61 6.0 -12.9 270 17 274.1 274.3 269.5 277.4 1.14 5 700 2840 -22.7 -28.7 58 6.0 -23.5 275 13 277.3 277.4 270.5 278.9 0.51 6 654 3334 -26.9 -31.9 63 5.0 -27.5 273 17 278.0 278.1 270.7 279.3 0.40 7 500 5220 -39.1 -43.7 62 4.6 -39.4 265 31 285.4 285.4 274.5 285.9 0.16 8 467 5686 -42.5 -46.9 62 4.4 -42.7 267 33 286.8 286.8 275.2 287.2 0.12 9 413 6509 -47.9 -52.7 58 4.8 -48.0 269 35 290.1 290.1 276.8 290.3 0.07 10 400 6720 -48.5 -53.4 57 4.9 -48.6 270 36 292.0 292.0 277.7 292.2 0.07 11 355 7500 -51.7 -56.7 55 5.0 -51.8 275 36 297.8 297.8 280.4 298.0 0.05 12 353 7537 -51.7 -56.7 55 5.0 -51.8 275 36 298.3 298.3 280.7 298.5 0.05 13 300 8600 -48.7 -54.7 50 6.0 -48.9 265 33 316.7 316.7 287.8 317.0 0.08 14 285 8939 -46.5 -53.5 45 7.0 -46.8 262 33 324.5 324.6 290.2 324.9 0.09 15 250 9810 -46.5 -55.5 35 9.0 -46.9 255 33 336.9 337.0 293.6 337.3 0.08 16 200 11290 -45.1 -58.1 22 13.0 -45.7 260 27 361.4 361.4 299.0 361.7 0.07 17 150 13210 -44.9 -59.9 17 15.0 -45.8 260 25 392.7 392.7 304.2 393.1 0.08 18 148 13299 -44.7 -59.7 17 15.0 -45.6 260 25 394.5 394.6 304.5 394.9 0.08 19 100 15890 -48.9 -64.9 14 16.0 -49.8 265 17 433.2 433.3 309.2 433.6 0.06 20 81 17265 -51.9 -67.9 13 16.0 -52.7 262 13 454.0 454.0 311.3 454.3 0.05 21 70 18210 -52.1 -68.1 13 16.0 -53.0 260 11 472.9 472.9 312.9 473.3 0.06 22 64 18793 -51.1 -68.1 11 17.0 -52.2 272 9 487.4 487.4 314.1 487.8 0.06 23 50 20390 -54.3 -70.3 12 16.0 -55.3 305 3 515.5 515.5 316.0 515.9 0.06 24 38 22147 -55.3 -71.3 12 16.0 -56.4 222 5 555.1 555.1 318.4 555.5 0.07 25 30 23660 -54.5 -70.5 12 16.0 -56.0 150 7 596.1 596.1 320.5 596.8 0.09 26 20 26280 -51.3 -69.3 10 18.0 -54.1 95 15 679.1 679.2 323.8 680.6 0.17 27 19 26613 -51.3 -69.3 10 18.0 -54.2 689.2 689.3 324.1 690.7 0.18 28 12 29649 -43.9 -62.9 10 19.0 -50.4 812.2 812.5 327.7 819.1 0.68 TRP 355 7500 -51.7 -56.7 55 5.0 -51.8 275 36 297.8 297.8 280.4 298.0 0.05 WND Sounding variables and indices 1000-500 mb thick: 5106.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.21 inches Sfc-500 mean rel hum: 62.05 % Est. max temperature: 1.84 C = 35.30 F Sfc-Lift cond lev (LCL): 968.03 mb = 370.31 m = 1214.90 ft T: -3.13 C 700-500 lapse rate: 6.89 C/km ThetaE index: 2.23 C Layer 1000.0- 700.0 mb Conv cond level (CCL): 881.37 mb = 1104.67 m = 3624.19 ft Mean mixing ratio: 2.18 g/kg Conv temperature: 1.65 C = 34.97 F Cap Strength: 1.03 C Lifted Index: 5.88 C Risk: None Lifted Index @300 mb: 26.98 C Lifted Index @700 mb: 0.95 C Showalter Index: 6.88 C Risk: None Total Totals Index: 49.20 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 27.60 C Cross Totals Index: 21.60 C K Index: 4.10 Risk: None Sweat Index: 69.00 Risk: None Energy Index: 1.74 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 3.38 J/kg Max Up Vert Vel: 2.60 m/s Conv Inhibition (B-): 64918.60 J/kg Cap Strength: 5.60 C Lift Cond Lev (LCL): 896.65 mb = 971.67 m = 3187.84 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 298 at 15 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 1013 11 250 7 6.6 2.4 | 145 12 -6.7 9.5 1 1000 114 250 11 10.3 3.8 | 165 11 -2.9 10.8 2 925 729 270 15 15.0 -0.0 | 194 7 1.7 7.1 3 850 1385 270 17 17.0 -0.0 | 208 8 3.7 7.1 4 700 2840 275 13 13.0 -1.1 | 177 6 -0.3 5.9 5 500 5220 265 31 30.9 2.7 | 241 20 17.6 9.8 6 400 6720 270 36 36.0 -0.0 | 253 24 22.7 7.1 7 355 7500 275 36 35.9 -3.1 | 260 23 22.6 3.9 8 300 8600 265 33 32.9 2.9 | 243 22 19.6 9.9 9 250 9810 255 33 31.9 8.5 | 230 24 18.6 15.6 10 200 11290 260 27 26.6 4.7 | 229 18 13.3 11.8 11 150 13210 260 25 24.6 4.3 | 225 16 11.3 11.4 12 100 15890 265 17 16.9 1.5 | 203 9 3.7 8.5 13 70 18210 260 11 10.8 1.9 | 165 9 -2.5 9.0 14 50 20390 305 3 2.5 -1.7 | 116 12 -10.8 5.3 15 30 23660 150 7 -3.5 6.1 | 128 21 -16.8 13.1 16 20 26280 95 15 -14.9 1.3 | 107 29 -28.2 8.4 Wind Parameters Mean winds (0-6000m): 268.0 at 20.1 knts Storm direction: 298.0 at 15.0 knts Shear (0-3000m) pos: 1.4 neg: 0.0 tot: 1.4 10-3/s Storm rel Dir Shear (0-3000m): 44.5 deg Storm rel helicity (0-3000m) pos: 28.6 neg: -6.1 tot: 22.5 m^2/s^2 ave: 7.5 10^-3 m/s^2 rel: 0.47 Storm rel vorticity (0-3000m) horiz: 3.0 stream: 1.4 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.31 Bulk Shear: 10.79 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 ------------------------------------------------------------------------------- 500 256 12 168 10| 7.1 0.0 7.1| 19.4 0.0 19.4 38.8 0.88| 8.0 7.1 1000 264 13 179 9| 4.9 0.0 4.9| 24.6 0.0 24.6 24.6 0.87| 5.6 4.8 1500 266 14 187 8| 3.6 0.0 3.6| 26.7 -0.4 26.2 17.5 0.83| 4.2 3.5 2000 267 15 191 8| 2.4 0.0 2.4| 26.7 -2.6 24.1 12.1 0.66| 3.5 2.3 2500 269 15 191 8| 1.7 0.0 1.7| 26.7 -4.8 21.9 8.8 0.52| 3.1 1.6 3000 269 15 190 7| 1.4 0.0 1.4| 28.6 -6.1 22.5 7.5 0.47| 3.0 1.4 4000 270 15 197 7| 1.1 1.0 2.1| 40.0 -6.1 33.9 8.5 0.55| 3.2 1.8 5000 269 18 210 9| 0.9 1.6 2.5| 48.7 -6.1 42.6 8.5 0.49| 3.4 1.6 6000 268 20 221 10| 1.1 1.3 2.4| 63.1 -6.1 57.0 9.5 0.50| 3.2 1.6 Wrote GIF file: /home/apache/climate/data/raob//U2271/skewt/U2271.skewt.20250425.12.gif