UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042000.upa.cvt Date: 0000Z 20 APR 25 Searching for U4908... Searching the city database file for: U4908 ... Date:0000Z 20 APR 25 Station: U4908 WMO ident: 24908 Latitude: 60.33 Longitude: 102.27 ------------------------------------------------------------------------------- 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 129 SFC 983 261 -10.5 -11.7 91 1.2 -10.8 0 0 263.9 264.2 263.4 268.2 1.58 2 976 317 -6.1 -11.1 68 5.0 -7.5 339 2 268.9 269.2 267.0 273.5 1.67 3 954 496 -3.3 -9.3 63 6.0 -5.2 274 7 273.5 273.8 270.5 279.0 1.98 4 925 740 -5.1 -14.1 49 9.0 -7.5 185 15 274.1 274.3 269.9 278.0 1.39 5 890 1042 -6.7 -16.7 45 10.0 -9.2 203 17 275.5 275.7 270.4 278.8 1.16 6 883 1104 -7.1 -17.1 45 10.0 -9.5 207 17 275.7 275.9 270.5 279.0 1.13 7 850 1399 -9.5 -19.5 44 10.0 -11.7 225 19 276.2 276.4 270.5 279.0 0.96 8 700 2862 -22.3 -27.1 65 4.8 -23.0 260 25 277.8 277.9 270.9 279.6 0.59 9 679 3085 -24.3 -29.1 64 4.8 -24.9 260 25 278.0 278.1 270.8 279.5 0.51 10 531 4829 -37.7 -45.7 43 8.0 -38.1 256 27 282.2 282.2 272.6 282.6 0.12 11 500 5240 -41.5 -49.5 42 8.0 -41.8 255 27 282.4 282.5 272.7 282.7 0.08 12 440 6095 -48.3 -56.3 39 8.0 -48.5 226 25 284.4 284.4 273.8 284.5 0.04 13 400 6720 -49.9 -57.9 38 8.0 -50.1 205 23 290.1 290.1 276.8 290.3 0.04 14 334 7899 -50.9 -59.9 34 9.0 -51.1 189 34 304.1 304.1 283.1 304.3 0.04 15 300 8600 -49.9 -59.9 30 10.0 -50.1 180 40 315.0 315.0 287.1 315.2 0.04 16 250 9790 -48.3 -60.3 24 12.0 -48.7 185 33 334.3 334.3 292.9 334.4 0.05 17 223 10540 -48.9 -62.9 18 14.0 -49.3 195 31 344.4 344.5 295.4 344.6 0.04 18 207 11031 -45.9 -60.9 17 15.0 -46.5 202 30 356.6 356.6 298.1 356.8 0.05 19 200 11260 -45.7 -61.7 15 16.0 -46.4 205 29 360.4 360.4 298.8 360.6 0.05 20 150 13180 -45.9 -64.9 10 19.0 -46.8 190 13 391.0 391.0 304.0 391.2 0.04 21 131 14081 -44.1 -65.1 8 21.0 -45.3 207 13 409.6 409.6 306.5 409.9 0.05 22 111 15182 -46.9 -67.9 7 21.0 -48.0 227 13 424.3 424.3 308.2 424.5 0.04 23 106 15486 -48.7 -69.7 7 21.0 -49.7 233 13 426.5 426.5 308.4 426.6 0.03 24 100 15870 -45.9 -67.9 7 22.0 -47.2 240 13 439.0 439.1 309.8 439.3 0.04 25 99 15937 -45.9 -67.9 7 22.0 -47.2 238 13 440.3 440.3 309.9 440.5 0.04 26 80 17344 -49.3 -70.3 7 21.0 -50.4 206 21 461.0 461.0 311.9 461.2 0.04 27 70 18220 -48.5 -70.5 6 22.0 -49.9 185 25 480.6 480.6 313.5 480.9 0.04 28 50 20420 -49.3 -71.3 6 22.0 -51.0 230 17 527.3 527.3 316.8 527.6 0.05 29 30 23760 -52.3 -74.3 5 22.0 -54.3 195 5 602.1 602.1 320.7 602.5 0.05 30 20 26380 -51.7 -73.7 5 22.0 -54.5 55 1 677.9 678.0 323.7 678.7 0.09 31 19 26713 -51.9 -73.9 5 22.0 -54.8 687.3 687.4 324.0 688.1 0.09 TRP 400 6720 -49.9 -57.9 38 8.0 -50.1 205 23 290.1 290.1 276.8 290.3 0.04 WND Sounding variables and indices 1000-500 mb thick: 5111.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.16 inches Sfc-500 mean rel hum: 53.16 % Est. max temperature: 1.89 C = 35.40 F Sfc-Lift cond lev (LCL): 964.09 mb = 413.47 m = 1356.51 ft T: -4.59 C 700-500 lapse rate: 8.07 C/km ThetaE index: 0.98 C Layer 925.0- 890.0 mb Conv cond level (CCL): 781.74 mb = 2029.82 m = 6659.42 ft Mean mixing ratio: 1.52 g/kg Conv temperature: 2.46 C = 36.43 F Cap Strength: 4.35 C Lifted Index: 4.36 C Risk: None Lifted Index @300 mb: 26.57 C Lifted Index @700 mb: 2.23 C Showalter Index: 3.19 C Risk: None Total Totals Index: 54.00 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 32.00 C Cross Totals Index: 22.00 C K Index: 7.70 Risk: None Sweat Index: 252.50 Risk: None Energy Index: 0.76 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 27.19 J/kg Max Up Vert Vel: 7.37 m/s Conv Inhibition (B-): 54011.39 J/kg Cap Strength: 4.37 C Lift Cond Lev (LCL): 827.06 mb = 1605.20 m = 5266.33 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 276 at 17 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 ---------------------------------------------------------- 0 983 261 0 0 -0.0 -0.0 | 96 17 -16.9 1.7 1 925 740 185 15 1.3 14.9 | 137 23 -15.6 16.7 2 850 1399 225 19 13.4 13.4 | 167 16 -3.5 15.2 3 700 2862 260 25 24.6 4.3 | 232 10 7.7 6.1 4 500 5240 255 27 26.1 7.0 | 226 13 9.1 8.7 5 400 6720 205 23 9.7 20.8 | 162 24 -7.2 22.6 6 300 8600 180 40 0.0 40.0 | 158 45 -16.9 41.7 7 250 9790 185 33 2.9 32.9 | 158 37 -14.1 34.6 8 200 11260 205 29 12.3 26.3 | 171 28 -4.7 28.0 9 150 13180 190 13 2.3 12.8 | 135 21 -14.7 14.5 10 100 15870 240 13 11.3 6.5 | 145 10 -5.7 8.2 11 70 18220 185 25 2.2 24.9 | 151 30 -14.8 26.6 12 50 20420 230 17 13.0 10.9 | 163 13 -3.9 12.7 13 30 23760 195 5 1.3 4.8 | 113 17 -15.6 6.6 14 20 26380 55 1 -0.8 -0.6 | 94 18 -17.8 1.2 Wind Parameters Mean winds (0-6000m): 245.8 at 22.7 knts Storm direction: 275.8 at 17.0 knts Shear (0-3000m) pos: 4.4 neg: 2.6 tot: 6.9 10-3/s Storm rel Dir Shear (0-3000m): 134.9 deg Storm rel helicity (0-3000m) pos: 122.8 neg: -15.7 tot: 107.1 m^2/s^2 ave: 35.7 10^-3 m/s^2 rel: 0.55 Storm rel vorticity (0-3000m) horiz: 9.5 stream: 5.2 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 0.51 Bulk Shear: 53.36 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 ------------------------------------------------------------------------------- 500 185 8 120 19| 0.0 15.6 15.6| 29.4 -15.3 14.1 28.1 0.25| 28.6 7.2 1000 197 12 135 19| 4.7 7.8 12.5| 70.4 -15.3 55.0 55.0 0.40| 19.1 7.5 1500 211 15 147 17| 5.2 5.2 10.4| 91.0 -15.3 75.6 50.4 0.46| 14.8 6.8 2000 221 16 156 15| 5.1 3.9 9.0|105.7 -15.3 90.3 45.2 0.50| 12.4 6.2 2500 230 18 166 14| 5.0 3.1 8.1|119.9 -15.3 104.6 41.8 0.54| 11.0 6.0 3000 237 19 176 12| 4.4 2.6 6.9|122.8 -15.7 107.1 35.7 0.55| 9.5 5.2 4000 244 21 189 11| 3.3 2.1 5.4|122.8 -17.0 105.8 26.5 0.53| 7.3 3.8 5000 248 22 199 11| 2.6 1.8 4.4|122.8 -19.4 103.4 20.7 0.50| 6.0 3.0 6000 246 23 199 12| 2.2 2.5 4.7|122.8 -76.4 46.4 7.7 0.21| 6.3 1.3 Wrote GIF file: /home/apache/climate/data/raob//U4908/skewt/U4908.skewt.20250420.00.gif