UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120415.upa.cvt Date: 1500Z 4 DEC 25 Searching for KSTA... Searching the city database file for: KSTA ... Date:1500Z 4 DEC 25 Station: KSTA WMO ident: 69990 Latitude: 38.97 Longitude: -77.49 Elevation: 87.00 ------------------------------------------------------------------------------- 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 1010 87 4.0 -4.0 56 8.0 0.9 350 5 276.4 276.8 273.5 284.2 2.81 1 1000 167 2.6 -6.4 51 9.0 -0.6 330 5 275.8 276.1 272.5 282.3 2.36 2 925 794 0.0 -11.0 43 11.0 -3.6 280 21 279.3 279.6 273.7 284.4 1.78 3 850 1468 -1.5 -9.5 54 8.0 -4.3 295 42 284.6 285.0 277.1 290.9 2.18 4 700 2997 -8.3 -13.3 67 5.0 -9.9 260 36 293.3 293.6 281.0 299.2 1.96 5 500 5550 -20.3 -26.3 59 6.0 -21.5 265 83 308.3 308.5 285.8 311.3 0.89 6 400 7170 -30.7 -36.7 56 6.0 -31.4 270 113 315.1 315.2 287.6 316.6 0.41 7 300 9160 -42.5 -49.5 46 7.0 -42.9 270 156 325.5 325.5 290.6 326.0 0.14 8 250 10370 -50.1 -63.1 20 13.0 -50.4 265 168 331.6 331.6 292.2 331.7 0.03 9 207 11575 -58.2 -70.4 20 12.2 -58.4 265 177 337.2 337.2 293.6 337.3 0.01 10 200 11790 -59.7 -71.7 20 12.0 -59.8 265 173 338.2 338.2 293.9 338.3 0.01 11 183 12343 -62.3 -75.3 16 13.0 -62.4 270 161 342.7 342.7 295.0 342.7 0.01 12 150 13580 -60.3 -80.3 6 20.0 -60.5 265 103 366.2 366.2 299.9 366.2 0.00 13 100 16100 -63.1 -88.1 2 25.0 -63.3 260 98 405.8 405.8 306.0 405.8 0.00 TRP 183 12343 -62.3 -75.3 16 13.0 -62.4 270 161 342.7 342.7 295.0 342.7 0.01 WND 207 11575 -58.2 -70.4 20 12.2 -58.4 265 177 337.2 337.2 293.6 337.3 0.01 Sounding variables and indices 1000-500 mb thick: 5383.00 m Freezing level: 925.00 mb = 794.00 m = 2604.96 ft Wetbulb zero: 1004.10 mb = 134.09 m = 439.94 ft Precipitable water: 0.41 inches Sfc-500 mean rel hum: 58.79 % Est. max temperature: 11.50 C = 52.70 F Sfc-Lift cond lev (LCL): 892.24 mb = 1081.44 m = 3547.98 ft T: -0.64 C 700-500 lapse rate: 4.70 C/km ThetaE index: 1.82 C Layer 1000.0- 925.0 mb Conv cond level (CCL): 583.59 mb = 4376.99 m = 14360.02 ft Mean mixing ratio: 2.08 g/kg Conv temperature: 29.10 C = 84.37 F Cap Strength: 11.72 C Lifted Index: 20.75 C Risk: None Lifted Index @300 mb: 29.67 C Lifted Index @700 mb: 11.72 C Showalter Index: 15.25 C Risk: None Total Totals Index: 29.60 C Risk: None Vertical Totals Index: 18.80 C Cross Totals Index: 10.80 C K Index: 4.30 Risk: None Sweat Index: 167.00 Risk: None Energy Index: 4.24 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 10.06 J/kg Max Up Vert Vel: 4.49 m/s Conv Inhibition (B-): 19144.36 J/kg Cap Strength: 20.70 C Lift Cond Lev (LCL): 821.74 mb = 1734.28 m = 5689.82 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 299 at 36 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 1010 87 350 5 0.9 -4.9 | 113 33 -30.7 12.9 1 1000 167 330 5 2.5 -4.3 | 115 32 -29.1 13.5 2 925 794 280 21 20.7 -3.6 | 142 18 -10.9 14.2 3 850 1468 295 42 38.1 -17.7 | 269 6 6.5 0.1 4 700 2997 260 36 35.5 6.3 | 189 24 3.9 24.1 5 500 5550 265 83 82.7 7.2 | 244 57 51.1 25.1 6 400 7170 270 113 113.0 -0.0 | 258 83 81.4 17.9 7 300 9160 270 156 156.0 -0.0 | 262 126 124.4 17.9 8 250 10370 265 168 167.4 14.6 | 257 140 135.8 32.5 9 207 11575 265 177 176.3 15.4 | 257 149 144.7 33.3 10 200 11790 265 173 172.3 15.1 | 257 145 140.7 32.9 11 183 12343 270 161 161.0 -0.0 | 262 131 129.4 17.9 12 150 13580 265 103 102.6 9.0 | 249 76 71.0 26.8 13 100 16100 260 98 96.5 17.0 | 242 74 64.9 34.9 Wind Parameters Mean winds (0-6000m): 269.5 at 48.4 knts Storm direction: 299.5 at 36.3 knts Shear (0-3000m) pos: 2.0 neg: 5.6 tot: 7.6 10-3/s Storm rel Dir Shear (0-3000m): 79.9 deg Storm rel helicity (0-3000m) pos: 106.8 neg: -60.6 tot: 46.3 m^2/s^2 ave: 15.4 10^-3 m/s^2 rel: 0.18 Storm rel vorticity (0-3000m) horiz: 11.9 stream: 2.1 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.04 Bulk Shear: 225.91 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 ------------------------------------------------------------------------------- 500 307 9 117 27| 0.0 13.7 13.7| 28.5 -3.7 24.7 49.5 0.27| 14.3 3.9 1000 288 16 129 21| 0.0 14.5 14.5| 79.5 -3.7 75.8 75.8 0.50| 15.9 8.0 1500 291 23 134 14| 4.1 9.7 13.8| 97.1 -6.6 90.5 60.3 0.55| 15.6 8.5 2000 289 27 147 11| 3.1 7.4 10.5| 97.1 -22.0 75.1 37.5 0.35| 13.9 4.8 2500 286 30 163 10| 2.5 6.2 8.6| 97.1 -41.1 55.9 22.4 0.23| 12.7 2.9 3000 282 31 174 12| 2.0 5.6 7.6|106.8 -60.6 46.3 15.4 0.18| 11.9 2.1 4000 275 35 192 15| 3.7 4.2 7.9|224.5 -60.6 164.0 41.0 0.31| 11.3 3.6 5000 271 41 209 19| 4.8 3.3 8.2|350.9 -60.6 290.4 58.1 0.37| 11.0 4.0 6000 269 48 223 25| 5.6 2.8 8.4|505.9 -60.6 445.3 74.2 0.39| 10.8 4.2 Wrote GIF file: /home/apache/climate/data/raob//KSTA/skewt/KSTA.skewt.20251204.15.gif