UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042912.upa.cvt Date: 1200Z 29 APR 25 Searching for U9231... Searching the city database file for: U9231 ... Date:1200Z 29 APR 25 Station: U9231 WMO ident: 29231 Latitude: 58.30 Longitude: 82.88 ------------------------------------------------------------------------------- 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 -17 SFC 989 77 15.8 4.8 48 11.0 9.9 210 5 289.9 290.8 283.6 305.5 5.45 2 941 496 12.8 2.8 51 10.0 7.7 210 11 291.0 291.8 283.5 305.3 4.97 3 925 639 10.8 1.8 54 9.0 6.3 210 13 290.4 291.2 283.0 303.9 4.71 4 886 998 6.8 -1.2 57 8.0 3.1 213 18 289.8 290.5 281.8 301.3 3.95 5 850 1339 4.2 -2.8 60 7.0 1.1 215 23 290.5 291.2 281.8 301.2 3.66 6 790 1927 -1.7 -6.0 72 4.3 -3.4 215 31 290.4 290.9 281.1 299.4 3.09 7 757 2266 -1.7 -5.0 78 3.3 -3.1 215 36 293.9 294.6 283.1 304.3 3.48 8 727 2586 -3.7 -4.4 95 0.7 -4.0 215 40 295.2 295.9 284.0 306.4 3.79 9 700 2883 -5.5 -6.3 94 0.8 -5.8 215 44 296.4 297.0 284.0 306.6 3.41 10 500 5450 -21.3 -24.3 77 3.0 -22.0 205 68 307.1 307.3 285.5 310.6 1.07 11 457 6106 -25.5 -30.5 63 5.0 -26.3 205 75 309.8 309.9 286.1 312.1 0.66 12 412 6844 -33.5 -40.5 49 7.0 -34.1 205 83 308.8 308.9 285.2 309.8 0.27 13 400 7050 -34.5 -41.5 49 7.0 -35.1 205 85 310.2 310.2 285.7 311.0 0.25 14 337 8229 -41.4 -51.4 33 10.0 -41.9 215 91 316.3 316.3 287.6 316.7 0.10 15 300 9010 -46.1 -58.1 24 12.0 -46.5 220 87 320.4 320.4 288.9 320.6 0.05 16 262 9904 -50.1 -65.1 15 15.0 -50.4 220 81 327.2 327.2 290.9 327.3 0.02 17 250 10210 -50.5 -66.5 13 16.0 -50.8 220 79 331.0 331.0 292.0 331.1 0.02 18 231 10722 -51.5 -67.5 13 16.0 -51.8 220 72 337.0 337.0 293.6 337.1 0.02 19 200 11660 -48.1 -66.1 11 18.0 -48.6 220 58 356.6 356.6 298.0 356.7 0.03 20 176 12504 -47.3 -66.3 10 19.0 -48.0 224 48 371.2 371.2 300.8 371.3 0.03 21 150 13550 -52.1 -72.1 7 20.0 -52.6 230 35 380.3 380.3 302.3 380.4 0.02 22 140 13994 -54.1 -74.1 7 20.0 -54.5 234 33 384.4 384.4 302.9 384.4 0.01 23 126 14675 -50.3 -70.3 8 20.0 -51.0 241 29 403.0 403.0 305.6 403.1 0.02 24 100 16170 -53.9 -74.9 6 21.0 -54.5 255 21 423.6 423.6 308.2 423.7 0.01 25 94 16567 -54.1 -74.1 7 20.0 -54.7 257 22 430.8 430.8 308.9 430.8 0.02 26 70 18450 -55.7 -75.7 7 20.0 -56.3 265 25 465.2 465.2 312.3 465.3 0.02 27 61 19325 -56.3 -76.3 6 20.0 -57.0 482.6 482.6 313.7 482.7 0.02 TRP 262 9904 -50.1 -65.1 15 15.0 -50.4 220 81 327.2 327.2 290.9 327.3 0.02 WND 337 8229 -41.4 -51.4 33 10.0 -41.9 215 91 316.3 316.3 287.6 316.7 0.10 Sounding variables and indices 1000-500 mb thick: 5467.00 m Freezing level: 807.29 mb = 1757.36 m = 5765.56 ft Wetbulb zero: 834.93 mb = 1482.60 m = 4864.10 ft Precipitable water: 0.67 inches Sfc-500 mean rel hum: 76.27 % Est. max temperature: 16.46 C = 61.63 F Sfc-Lift cond lev (LCL): 838.28 mb = 1450.50 m = 4758.80 ft T: 3.08 C 700-500 lapse rate: 6.16 C/km ThetaE index: 6.03 C Layer 941.0- 757.0 mb Conv cond level (CCL): 809.92 mb = 1726.76 m = 5665.15 ft Mean mixing ratio: 4.83 g/kg Conv temperature: 16.38 C = 61.49 F Cap Strength: 1.57 C Lifted Index: 4.75 C Risk: None Lifted Index @300 mb: 11.60 C Lifted Index @700 mb: 1.57 C Showalter Index: 6.81 C Risk: None Total Totals Index: 44.00 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 25.50 C Cross Totals Index: 18.50 C K Index: 21.90 Risk: 20-40 % chance of thunderstorms Sweat Index: 114.00 Risk: None Energy Index: 1.92 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 8.65 J/kg Max Up Vert Vel: 4.16 m/s Conv Inhibition (B-): 4.64 J/kg Cap Strength: 4.74 C Lift Cond Lev (LCL): 811.13 mb = 1714.84 m = 5626.04 ft Lev Free Conv (LFC): 806.13 mb = 1764.48 m = 5788.91 ft Equ Level (EL): 776.13 mb = 2067.43 m = 6782.84 ft B at Equ Level: 8.19 J/kg Max Parcel Lev (MPL): 746.13 mb = 2380.11 m = 7808.66 ft Wind level data Storm motion: 240 at 33 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 ---------------------------------------------------------- 0 989 77 210 5 2.5 4.3 | 65 28 -25.7 -12.2 1 925 639 210 13 6.5 11.3 | 76 22 -21.7 -5.3 2 850 1339 215 23 13.2 18.8 | 99 15 -15.0 2.3 3 700 2883 215 44 25.2 36.0 | 171 20 -3.0 19.5 4 500 5450 205 68 28.7 61.6 | 181 45 0.5 45.1 5 400 7050 205 85 35.9 77.0 | 187 61 7.7 60.5 6 337 8229 215 91 52.2 74.5 | 202 63 24.0 58.0 7 300 9010 220 87 55.9 66.6 | 209 57 27.7 50.1 8 262 9904 220 81 52.1 62.0 | 208 51 23.9 45.5 9 250 10210 220 79 50.8 60.5 | 207 49 22.6 44.0 10 200 11660 220 58 37.3 44.4 | 198 29 9.1 27.9 11 150 13550 230 35 26.8 22.5 | 167 6 -1.4 6.0 12 100 16170 255 21 20.3 5.4 | 36 14 -7.9 -11.1 13 70 18450 265 25 24.9 2.2 | 13 15 -3.3 -14.3 Wind Parameters Mean winds (0-6000m): 209.6 at 43.6 knts Storm direction: 239.6 at 32.7 knts Shear (0-3000m) pos: 2.4 neg: 4.6 tot: 7.0 10-3/s Storm rel Dir Shear (0-3000m): 108.9 deg Storm rel helicity (0-3000m) pos: 149.2 neg: 0.0 tot: 149.2 m^2/s^2 ave: 49.7 10^-3 m/s^2 rel: 0.78 Storm rel vorticity (0-3000m) horiz: 7.0 stream: 5.5 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.05 Bulk Shear: 162.54 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 ------------------------------------------------------------------------------- 500 210 9 69 26| 0.0 7.3 7.3| 30.4 0.0 30.4 60.9 0.63| 7.3 4.6 1000 211 12 74 23| 3.7 3.7 7.4| 56.7 0.0 56.7 56.7 0.66| 7.4 4.8 1500 213 16 80 20| 4.9 2.4 7.3| 80.9 0.0 80.9 53.9 0.72| 7.3 5.3 2000 214 19 88 18| 3.7 3.6 7.2|105.4 0.0 105.4 52.7 0.78| 7.2 5.7 2500 214 23 98 16| 2.9 4.3 7.2|130.0 0.0 130.0 52.0 0.80| 7.2 5.8 3000 214 26 111 14| 2.4 4.6 7.0|149.2 0.0 149.2 49.7 0.78| 7.0 5.5 4000 213 32 135 15| 1.8 4.7 6.5|166.7 0.0 166.7 41.7 0.68| 6.6 4.5 5000 212 38 152 18| 1.5 4.7 6.2|174.2 0.0 174.2 34.8 0.58| 6.3 3.6 6000 210 44 163 22| 1.2 4.8 6.0|206.7 -0.3 206.4 34.4 0.53| 6.1 3.3 Wrote GIF file: /home/apache/climate/data/raob//U9231/skewt/U9231.skewt.20250429.12.gif