UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101823.upa.cvt Date: 2300Z 18 OCT 25 Searching for DTTA... Searching the city database file for: DTTA ... Date:2300Z 18 OCT 25 Station: DTTA WMO ident: 60715 Latitude: 36.83 Longitude: 10.23 Elevation: 4.00 ------------------------------------------------------------------------------- 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 1019 4 18.6 15.8 84 2.8 16.8 320 3 290.2 292.2 289.2 321.5 11.14 1 1007 117 19.4 14.5 73 4.9 16.3 61 3 292.0 293.8 289.2 321.4 10.36 2 1000 184 19.0 14.0 73 5.0 15.8 120 3 292.1 293.9 289.0 320.8 10.09 3 929 811 13.6 10.5 82 3.1 11.7 30 9 292.9 294.4 287.9 317.5 8.61 4 925 847 13.8 10.3 79 3.5 11.7 25 9 293.4 294.9 288.1 317.9 8.53 5 910 985 13.2 9.9 80 3.3 11.2 14 8 294.2 295.7 288.2 318.5 8.44 6 850 1555 9.2 6.6 84 2.6 7.8 330 6 295.8 297.1 287.6 316.7 7.21 7 768 2390 4.2 2.5 89 1.7 3.3 280 7 299.1 300.2 287.7 316.8 5.97 8 717 2950 2.8 -0.3 80 3.1 1.3 247 7 303.5 304.5 288.5 319.3 5.22 9 700 3144 1.8 -1.3 80 3.1 0.3 235 7 304.5 305.4 288.6 319.6 4.97 10 678 3400 0.0 -3.3 78 3.3 -1.6 235 7 305.3 306.1 288.3 318.8 4.42 11 630 3983 -4.5 -6.3 87 1.8 -5.3 237 7 306.6 307.3 288.2 318.4 3.79 12 600 4366 -6.1 -9.2 79 3.1 -7.4 237 7 309.1 309.7 288.5 319.1 3.17 13 554 4986 -9.9 -12.8 79 2.9 -10.9 238 8 311.7 312.2 288.8 320.0 2.58 14 500 5770 -14.9 -17.8 78 2.9 -15.8 240 8 314.9 315.2 289.1 321.1 1.89 15 429 6911 -23.5 -25.6 83 2.1 -23.9 257 13 318.0 318.2 289.3 321.8 1.11 16 400 7420 -27.5 -30.1 78 2.6 -27.9 265 15 319.2 319.4 289.3 322.0 0.78 17 323 8920 -39.9 -44.0 65 4.1 -40.2 250 22 322.2 322.3 289.7 323.1 0.24 18 300 9420 -44.3 -48.9 60 4.6 -44.5 245 25 322.9 322.9 289.8 323.5 0.15 19 255 10492 -51.7 -57.7 49 6.0 -51.9 249 30 327.3 327.4 291.0 327.6 0.06 20 250 10620 -52.7 -58.7 48 6.0 -52.8 250 31 327.7 327.7 291.1 327.9 0.06 21 228 11209 -54.9 -60.9 47 6.0 -55.0 254 32 333.1 333.1 292.6 333.3 0.05 22 215 11582 -56.1 -62.1 47 6.0 -56.2 257 33 336.9 336.9 293.6 337.1 0.04 23 200 12040 -56.5 -62.5 47 6.0 -56.6 260 34 343.3 343.3 295.1 343.5 0.04 24 192 12299 -57.5 -64.5 41 7.0 -57.6 257 32 345.7 345.7 295.7 345.9 0.03 25 172 12992 -59.7 -66.7 40 7.0 -59.8 250 28 353.1 353.1 297.3 353.3 0.03 26 150 13850 -59.1 -66.1 40 7.0 -59.2 265 27 368.3 368.3 300.3 368.4 0.04 27 149 13892 -59.1 -66.1 40 7.0 -59.2 265 27 369.0 369.0 300.4 369.1 0.04 28 143 14150 -57.3 -65.3 36 8.0 -57.5 263 26 376.5 376.5 301.7 376.7 0.04 29 131 14699 -59.9 -67.9 34 8.0 -60.0 260 25 381.4 381.4 302.5 381.5 0.03 30 125 14992 -59.5 -67.5 35 8.0 -59.7 258 24 387.2 387.3 303.4 387.4 0.03 31 117 15403 -61.1 -75.1 14 14.0 -61.3 256 23 391.7 391.7 304.0 391.7 0.01 32 108 15901 -59.7 -75.7 11 16.0 -60.0 253 22 403.4 403.4 305.7 403.5 0.01 33 106 16017 -59.9 -75.9 11 16.0 -60.2 252 22 405.2 405.2 305.9 405.2 0.01 34 101 16318 -60.5 -77.5 9 17.0 -60.7 250 21 409.7 409.7 306.5 409.7 0.01 35 100 16380 -60.3 -78.3 8 18.0 -60.6 250 21 411.2 411.2 306.7 411.3 0.01 36 88 17172 -62.1 254 25 422.9 37 70 18590 -60.3 260 31 455.4 38 65 19050 -61.3 262 32 463.0 39 56 19976 -60.1 267 34 485.8 40 50 20680 -61.1 270 35 499.5 41 40 22069 -62.1 266 39 529.9 42 37 22553 -61.7 264 40 542.9 43 30 23870 -57.3 260 44 588.4 44 25 25025 -56.5 622.2 45 24 25284 -55.9 631.3 TRP 172 12992 -59.7 -66.7 40 7.0 -59.8 250 28 353.1 353.1 297.3 353.3 0.03 WND Sounding variables and indices 1000-500 mb thick: 5586.00 m Freezing level: 678.00 mb = 3400.49 m = 11156.34 ft Wetbulb zero: 696.92 mb = 3179.40 m = 10430.97 ft Precipitable water: 1.29 inches Sfc-500 mean rel hum: 81.29 % Est. max temperature: 23.71 C = 74.68 F Sfc-Lift cond lev (LCL): 977.71 mb = 375.83 m = 1233.01 ft T: 17.35 C 700-500 lapse rate: 6.36 C/km ThetaE index: 4.06 C Layer 1007.0- 925.0 mb Conv cond level (CCL): 877.77 mb = 1286.22 m = 4219.82 ft Mean mixing ratio: 9.48 g/kg Conv temperature: 23.48 C = 74.26 F Cap Strength: 1.64 C Lifted Index: 1.81 C Risk: Showers probable Lifted Index @300 mb: 2.97 C Lifted Index @700 mb: 1.60 C Showalter Index: 3.36 C Risk: None Total Totals Index: 45.60 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 24.10 C Cross Totals Index: 21.50 C K Index: 27.60 Risk: 40-60 % chance of thunderstorms Sweat Index: 99.20 Risk: None Energy Index: 0.86 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 6.39 J/kg Max Up Vert Vel: 3.57 m/s Conv Inhibition (B-): 34.51 J/kg Cap Strength: 1.78 C Lift Cond Lev (LCL): 912.37 mb = 962.91 m = 3159.12 ft Lev Free Conv (LFC): 787.37 mb = 2185.32 m = 7169.61 ft Equ Level (EL): 757.37 mb = 2503.87 m = 8214.70 ft B at Equ Level: 5.72 J/kg Max Parcel Lev (MPL): 727.37 mb = 2832.78 m = 9293.80 ft Wind level data Storm motion: 290 at 5 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 1019 4 320 3 1.9 -2.3 | 80 3 -3.0 -0.5 1 1000 184 120 3 -2.6 1.5 | 114 8 -7.5 3.3 2 925 847 25 9 -3.8 -8.2 | 54 11 -8.7 -6.4 3 850 1555 330 6 3.0 -5.2 | 30 4 -1.9 -3.4 4 700 3144 235 7 5.7 4.0 | 188 6 0.8 5.8 5 500 5770 240 8 6.9 4.0 | 199 6 2.0 5.8 6 400 7420 265 15 14.9 1.3 | 253 10 10.0 3.1 7 300 9420 245 25 22.7 10.6 | 235 22 17.7 12.4 8 250 10620 250 31 29.1 10.6 | 243 27 24.2 12.4 9 200 12040 260 34 33.5 5.9 | 255 30 28.5 7.7 10 172 12992 250 28 26.3 9.6 | 242 24 21.4 11.4 11 150 13850 265 27 26.9 2.4 | 259 22 22.0 4.1 12 100 16380 250 21 19.7 7.2 | 239 17 14.8 9.0 13 70 18590 260 31 30.5 5.4 | 254 27 25.6 7.2 14 50 20680 270 35 35.0 -0.0 | 267 30 30.1 1.8 15 30 23870 260 44 43.3 7.6 | 256 40 38.4 9.4 Wind Parameters Mean winds (0-6000m): 259.9 at 7.0 knts Storm direction: 289.9 at 5.3 knts Shear (0-3000m) pos: 1.3 neg: 2.2 tot: 3.5 10-3/s Storm rel Dir Shear (0-3000m): 113.8 deg Storm rel helicity (0-3000m) pos: 7.4 neg: -41.3 tot: -33.9 m^2/s^2 ave: -11.3 10^-3 m/s^2 rel: -0.46 Storm rel vorticity (0-3000m) horiz: 6.3 stream: -2.9 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.40 Bulk Shear: 15.85 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 87 4 100 9| 7.9 0.0 7.9| 7.4 -9.5 -2.1 -4.2 0.03| 12.4 0.3 1000 37 6 71 9| 3.9 3.9 7.8| 7.4 -32.8 -25.5 -25.5 -0.38| 10.8 -4.1 1500 20 6 60 8| 2.6 3.2 5.8| 7.4 -36.9 -29.5 -19.7 -0.38| 9.0 -3.4 2000 4 6 50 7| 2.0 2.9 4.8| 7.4 -38.2 -30.9 -15.4 -0.40| 7.6 -3.1 2500 348 6 39 6| 1.6 2.5 4.1| 7.4 -39.3 -32.0 -12.8 -0.45| 6.8 -3.1 3000 333 6 27 4| 1.3 2.2 3.5| 7.4 -41.3 -33.9 -11.3 -0.46| 6.3 -2.9 4000 296 7 317 1| 1.0 1.7 2.6| 7.9 -42.1 -34.2 -8.5 -0.45| 4.9 -2.2 5000 271 7 228 2| 0.7 1.3 2.0| 8.6 -42.1 -33.5 -6.7 -0.43| 4.0 -1.7 6000 260 7 213 4| 0.5 1.1 1.6| 10.9 -42.1 -31.2 -5.2 -0.38| 3.4 -1.3 Wrote GIF file: /home/apache/climate/data/raob//DTTA/skewt/DTTA.skewt.20251018.23.gif