UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2026011006.upa.cvt Date: 0600Z 10 JAN 26 Searching for DRRN... Searching the city database file for: DRRN ... Date:0600Z 10 JAN 26 Station: DRRN WMO ident: 61052 Latitude: 13.48 Longitude: 2.17 Elevation: 227.00 ------------------------------------------------------------------------------- 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 ------------------------------------------------------------------------------- 0 1000 136 SFC 989 227 20.8 1.8 28 19.0 10.9 80 17 294.9 295.7 284.5 307.8 4.40 2 850 1260 6.0 4.0 87 2.0 4.9 65 20 292.4 293.5 285.2 309.7 6.00 3 500 5390 -16.5 -17.2 94 0.7 -16.7 163 19 312.9 313.3 288.5 319.4 1.98 4 400 7010 20.0 18.7 92 1.3 18.9 381.0 389.2 316.6 526.0 35.40 TRP WND Sounding variables and indices 1000-500 mb thick: 5254.00 m Freezing level: 756.67 mb = 2361.33 m = 7747.06 ft Freezing level: 454.79 mb = 6122.33 m = 20086.14 ft Wetbulb zero: 770.22 mb = 2027.10 m = 6650.52 ft Precipitable water: 1.56 inches Sfc-500 mean rel hum: 83.31 % Est. max temperature: 18.87 C = 65.96 F Sfc-Lift cond lev (LCL): 744.67 mb = 2289.72 m = 7512.13 ft T: 0.39 C 700-500 lapse rate: 5.45 C/km ThetaE index: 0.00 C Layer 989.0- 0.0 mb Conv cond level (CCL): 720.46 mb = 2546.94 m = 8356.01 ft Mean mixing ratio: 4.94 g/kg Conv temperature: 24.80 C = 76.64 F Cap Strength: 1.99 C Lifted Index: 6.77 C Risk: None Lifted Index @700 mb: 2.61 C Showalter Index: 5.98 C Risk: None Total Totals Index: 43.00 C Risk: None Vertical Totals Index: 22.50 C Cross Totals Index: 20.50 C K Index: 24.98 Risk: 20-40 % chance of thunderstorms Sweat Index: 106.75 Risk: None Energy Index: 1.83 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 12.97 J/kg Max Up Vert Vel: 5.09 m/s Conv Inhibition (B-): 2242.82 J/kg Cap Strength: 6.70 C Lift Cond Lev (LCL): 771.98 mb = 2009.39 m = 6592.41 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 127 at 10 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 ---------------------------------------------------------- 0 989 227 80 17 -16.7 -3.0 | 44 13 -8.7 -9.1 1 980 305 55 18 -14.7 -10.3 | 22 18 -6.7 -16.4 2 946 610 85 26 -25.9 -2.3 | 65 20 -17.9 -8.4 3 913 914 65 20 -18.1 -8.5 | 35 18 -10.1 -14.6 4 881 1219 65 21 -19.0 -8.9 | 36 19 -11.0 -15.0 5 820 1829 65 19 -17.2 -8.0 | 33 17 -9.2 -14.2 6 791 2134 105 14 -13.5 3.6 | 65 6 -5.5 -2.5 7 764 2438 100 9 -8.9 1.6 | 10 5 -0.8 -4.6 8 737 2743 220 6 3.9 4.6 | 277 12 11.9 -1.5 9 662 3658 55 2 -1.6 -1.1 | 319 10 6.4 -7.3 10 617 4267 115 15 -13.6 6.3 | 92 6 -5.5 0.2 11 574 4877 90 10 -10.0 0.0 | 18 6 -2.0 -6.1 12 498 6096 165 19 -4.9 18.4 | 194 13 3.1 12.2 13 417 7620 200 15 5.1 14.1 | 239 15 13.2 8.0 Wind Parameters Mean winds (0-6000m): 97.3 at 13.5 knts Storm direction: 127.3 at 10.1 knts Shear (0-3000m) pos: 4.3 neg: 1.8 tot: 6.0 10-3/s Storm rel Dir Shear (0-3000m): -99.9 deg Storm rel helicity (0-3000m) pos: 93.6 neg: -79.0 tot: 14.6 m^2/s^2 ave: 4.9 10^-3 m/s^2 rel: -0.03 Storm rel vorticity (0-3000m) horiz: 12.5 stream: -0.4 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.83 Bulk Shear: 15.69 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 74 22 47 18| 0.0 7.0 7.0| 60.8 -36.1 24.7 49.4 0.17| 23.9 4.2 1000 71 21 43 18| 0.0 3.3 3.3| 63.0 -64.2 -1.2 -1.2 -0.04| 15.5 -0.7 1500 69 21 41 18| 0.0 1.8 1.8| 63.0 -68.1 -5.1 -3.4 -0.07| 10.9 -0.7 2000 72 20 41 16| 3.2 1.4 4.5| 82.2 -70.8 11.3 5.7 0.06| 11.8 0.7 2500 75 18 40 14| 5.1 1.1 6.2| 87.1 -79.0 8.0 3.2 -0.09| 13.5 -1.2 3000 77 16 37 12| 4.3 1.8 6.0| 93.6 -79.0 14.6 4.9 -0.03| 12.5 -0.4 4000 79 13 30 10| 2.9 1.8 4.7|122.0 -79.4 42.5 10.6 0.15| 11.8 1.7 5000 85 13 34 9| 2.6 1.7 4.4|127.5 -88.0 39.5 7.9 0.12| 10.6 1.2 6000 97 13 50 7| 3.5 1.4 5.0|152.9 -88.0 64.9 10.8 0.21| 10.3 2.2 Wrote GIF file: /home/apache/climate/data/raob//DRRN/skewt/DRRN.skewt.20260110.06.gif