UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120912.upa.cvt Date: 1200Z 9 DEC 25 Searching for U1946... Searching the city database file for: U1946 ... Date:1200Z 9 DEC 25 Station: U1946 WMO ident: 21946 Latitude: 70.62 Longitude: 147.90 ------------------------------------------------------------------------------- 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 1016 47 -36.9 -40.6 68 3.7 -37.0 260 7 235.2 235.2 235.1 235.5 0.11 1 1000 157 -35.1 -38.9 68 3.8 -35.3 265 7 238.1 238.1 237.9 238.4 0.13 2 943 571 -28.3 -31.8 72 3.5 -28.6 276 12 249.0 249.0 248.4 249.8 0.28 3 942 579 -24.9 -28.4 73 3.5 -25.2 276 12 252.5 252.6 251.8 253.6 0.39 4 925 711 -24.9 -29.0 69 4.1 -25.3 280 13 253.8 253.9 252.8 254.9 0.38 5 884 1040 -25.3 -30.3 63 5.0 -25.8 267 18 256.7 256.8 255.2 257.7 0.35 6 850 1323 -27.3 -34.3 51 7.0 -27.8 255 23 257.5 257.6 255.7 258.3 0.25 7 825 1537 -28.1 -35.1 51 7.0 -28.6 253 24 258.9 258.9 256.8 259.6 0.23 8 753 2196 -25.3 -33.3 47 8.0 -26.1 249 25 268.8 268.8 264.4 269.7 0.31 9 700 2724 -26.9 -34.9 47 8.0 -27.6 245 27 272.7 272.7 267.1 273.6 0.28 10 592 3918 -32.5 -41.5 40 9.0 -33.1 243 34 279.6 279.6 271.2 280.1 0.17 11 500 5090 -39.5 -50.5 30 11.0 -39.9 240 42 284.9 284.9 274.1 285.1 0.07 12 470 5509 -42.1 -54.1 26 12.0 -42.5 237 43 286.7 286.7 275.0 286.9 0.05 13 400 6580 -49.1 -61.1 23 12.0 -49.3 230 46 291.2 291.2 277.3 291.3 0.03 14 349 7467 -54.7 -64.7 28 10.0 -54.8 232 41 295.2 295.2 279.2 295.3 0.02 15 302 8388 -57.9 -67.9 27 10.0 -58.0 235 36 303.2 303.2 282.7 303.2 0.01 16 300 8430 -57.7 -67.7 27 10.0 -57.8 235 36 304.0 304.0 283.0 304.1 0.01 17 268 9141 -59.1 -68.1 30 9.0 -59.2 226 34 311.9 311.9 286.0 312.0 0.01 18 250 9580 -57.1 -66.1 31 9.0 -57.2 220 33 321.2 321.2 289.1 321.3 0.02 19 234 10000 -54.7 -63.7 32 9.0 -54.9 217 31 330.9 331.0 292.0 331.1 0.03 20 200 11000 -55.3 -65.3 28 10.0 -55.5 210 27 345.2 345.2 295.6 345.3 0.03 21 198 11064 -55.5 -65.5 28 10.0 -55.7 210 27 345.9 345.9 295.7 346.0 0.03 22 150 12850 -52.1 -64.1 22 12.0 -52.5 205 33 380.3 380.3 302.3 380.5 0.05 23 141 13251 -51.1 -65.1 17 14.0 -51.6 204 34 388.8 388.9 303.6 389.1 0.04 24 100 15470 -54.1 -70.1 12 16.0 -54.6 200 40 423.2 423.2 308.1 423.4 0.03 25 70 17750 -54.9 -72.9 9 18.0 -55.6 210 44 466.9 466.9 312.4 467.1 0.03 26 65 18223 -55.5 -74.5 8 19.0 -56.2 211 45 475.6 475.6 313.1 475.8 0.02 27 57 19060 -55.1 -74.1 8 19.0 -55.9 213 46 494.7 494.7 314.6 494.9 0.03 28 52 19643 -57.9 -76.9 7 19.0 -58.6 214 48 501.4 501.4 315.1 501.5 0.02 29 50 19890 -57.3 -77.3 6 20.0 -58.0 215 48 508.4 508.5 315.5 508.6 0.02 30 43 20844 -56.9 -76.9 6 20.0 -57.8 212 56 531.8 531.9 317.1 532.0 0.03 31 37 21797 -56.5 -77.5 5 21.0 -57.6 209 64 556.2 556.2 318.5 556.4 0.03 32 30 23120 -59.1 -79.1 6 20.0 -60.1 205 75 583.5 583.5 319.9 583.7 0.03 33 26 24020 -57.7 -78.5 5 20.8 -59.0 210 81 611.9 611.9 321.2 612.2 0.03 34 25 24268 -57.3 -78.3 5 21.0 -58.7 619.9 619.9 321.5 620.2 0.03 35 22 25076 -57.3 -78.3 5 21.0 -58.9 643.0 643.0 322.4 643.3 0.04 TRP 302 8388 -57.9 -67.9 27 10.0 -58.0 235 36 303.2 303.2 282.7 303.2 0.01 WND 26 24020 -57.7 -78.5 5 20.8 -59.0 210 81 611.9 611.9 321.2 612.2 0.03 Sounding variables and indices 1000-500 mb thick: 4933.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.05 inches Sfc-500 mean rel hum: 48.62 % Est. max temperature: -14.81 C = 5.34 F Sfc-Lift cond lev (LCL): 952.90 mb = 497.45 m = 1632.05 ft T: -29.51 C 700-500 lapse rate: 5.33 C/km ThetaE index: 0.00 C Layer 1016.0- 0.0 mb Conv cond level (CCL): 1000.00 mb = 157.00 m = 515.09 ft Mean mixing ratio: 0.24 g/kg Conv temperature: -31.71 C = -25.08 F Cap Strength: 29.03 C Lifted Index: 31.96 C Risk: None Lifted Index @300 mb: 41.19 C Lifted Index @700 mb: 24.35 C Showalter Index: 21.89 C Risk: None Total Totals Index: 17.40 C Risk: None Vertical Totals Index: 12.20 C Cross Totals Index: 5.20 C K Index: -30.10 Risk: None Sweat Index: 88.00 Risk: None Energy Index: 5.76 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 68.83 J/kg Max Up Vert Vel: 11.73 m/s Conv Inhibition (B-): 59411.45 J/kg Cap Strength: 31.96 C Lift Cond Lev (LCL): 920.70 mb = 744.84 m = 2443.66 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 275 at 22 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 1016 47 260 7 6.9 1.2 | 101 15 -15.0 3.0 1 1000 157 265 7 7.0 0.6 | 99 15 -15.0 2.4 2 925 711 280 13 12.8 -2.3 | 87 9 -9.1 -0.5 3 850 1323 255 23 22.2 6.0 | 182 8 0.3 7.7 4 700 2724 245 27 24.5 11.4 | 191 13 2.5 13.2 5 500 5090 240 42 36.4 21.0 | 212 27 14.4 22.8 6 400 6580 230 46 35.2 29.6 | 203 34 13.3 31.3 7 302 8388 235 36 29.5 20.6 | 199 24 7.6 22.4 8 300 8430 235 36 29.5 20.6 | 199 24 7.6 22.4 9 250 9580 220 33 21.2 25.3 | 178 27 -0.7 27.0 10 200 11000 210 27 13.5 23.4 | 161 27 -8.4 25.1 11 150 12850 205 33 13.9 29.9 | 166 33 -8.0 31.7 12 100 15470 200 40 13.7 37.6 | 168 40 -8.2 39.3 13 70 17750 210 44 22.0 38.1 | 180 40 0.1 39.9 14 50 19890 215 48 27.5 39.3 | 188 41 5.6 41.1 15 30 23120 205 75 31.7 68.0 | 188 70 9.8 69.7 Wind Parameters Mean winds (0-6000m): 244.6 at 29.3 knts Storm direction: 274.6 at 22.0 knts Shear (0-3000m) pos: 0.8 neg: 3.5 tot: 4.3 10-3/s Storm rel Dir Shear (0-3000m): 95.3 deg Storm rel helicity (0-3000m) pos: 22.2 neg: -8.5 tot: 13.6 m^2/s^2 ave: 4.5 10^-3 m/s^2 rel: 0.33 Storm rel vorticity (0-3000m) horiz: 4.8 stream: 1.6 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 1.09 Bulk Shear: 63.08 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 ------------------------------------------------------------------------------- 500 270 9 98 13| 5.0 0.0 5.0| 0.0 -6.1 -6.1 -12.3 -0.34| 5.3 -1.8 1000 273 12 97 10| 2.5 3.9 6.4| 6.4 -8.5 -2.2 -2.2 0.11| 7.0 0.8 1500 265 15 114 8| 1.7 4.8 6.4| 14.1 -8.5 5.5 3.7 0.33| 7.1 2.3 2000 260 17 134 7| 1.2 4.0 5.3| 15.7 -8.5 7.1 3.6 0.33| 5.9 1.9 2500 257 19 151 7| 1.0 3.6 4.6| 16.8 -8.5 8.2 3.3 0.31| 5.1 1.6 3000 254 20 162 8| 0.8 3.5 4.3| 22.2 -8.5 13.6 4.5 0.33| 4.8 1.6 4000 250 23 180 10| 0.6 3.4 4.1| 37.1 -8.5 28.6 7.1 0.36| 4.4 1.6 5000 247 26 192 12| 0.5 3.4 3.9| 49.8 -8.5 41.2 8.2 0.36| 4.2 1.5 6000 245 29 198 15| 0.4 3.2 3.6| 49.8 -32.2 17.6 2.9 0.25| 4.0 1.0 Wrote GIF file: /home/apache/climate/data/raob//U1946/skewt/U1946.skewt.20251209.12.gif