UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2026011700.upa.cvt Date: 0000Z 17 JAN 26 Searching for U1946... Searching the city database file for: U1946 ... Date:0000Z 17 JAN 26 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 1023 48 -36.3 -39.9 69 3.6 -36.4 250 9 235.3 235.3 235.3 235.6 0.12 1 1011 130 -30.5 -34.7 67 4.2 -30.7 255 11 241.9 241.9 241.7 242.4 0.20 2 1000 208 -28.7 -33.0 66 4.3 -29.0 260 13 244.4 244.5 244.2 245.1 0.24 3 963 481 -19.5 -23.5 71 4.0 -20.0 279 12 256.4 256.5 255.5 258.0 0.60 4 925 779 -19.3 -27.3 49 8.0 -20.3 300 11 259.6 259.6 257.8 260.8 0.44 5 875 1193 -17.9 -32.9 26 15.0 -19.6 280 16 265.2 265.2 261.7 266.0 0.27 6 865 1279 -18.5 -34.5 23 16.0 -20.2 276 17 265.4 265.5 261.9 266.1 0.24 7 850 1409 -18.7 -36.7 19 18.0 -20.5 270 19 266.6 266.6 262.6 267.1 0.19 8 737 2467 -20.7 -44.7 10 24.0 -22.7 277 25 275.5 275.5 268.5 275.8 0.10 9 700 2846 -22.9 -42.9 14 20.0 -24.5 280 27 277.1 277.1 269.6 277.5 0.12 10 535 4769 -34.1 -53.1 13 19.0 -34.9 272 44 285.9 285.9 274.6 286.1 0.05 11 500 5240 -36.3 -53.3 16 17.0 -37.0 270 48 288.8 288.8 276.1 289.0 0.05 12 405 6677 -43.5 -57.5 20 14.0 -43.9 275 65 297.4 297.4 280.3 297.5 0.04 13 400 6760 -44.1 -58.1 20 14.0 -44.5 275 66 297.7 297.7 280.4 297.8 0.04 14 306 8514 -54.3 -66.5 21 12.1 -54.5 275 73 307.0 307.0 284.2 307.1 0.02 15 300 8640 -55.1 -67.1 21 12.0 -55.2 275 73 307.7 307.7 284.5 307.7 0.02 16 273 9238 -58.3 -69.3 23 11.0 -58.4 275 71 311.5 311.5 285.9 311.5 0.01 17 250 9790 -60.5 -71.5 22 11.0 -60.6 275 69 316.1 316.1 287.5 316.2 0.01 18 234 10204 -61.7 -72.7 22 11.0 -61.8 280 62 320.3 320.3 288.9 320.4 0.01 19 200 11190 -59.1 -70.1 23 11.0 -59.2 275 42 339.2 339.2 294.1 339.2 0.02 20 150 13010 -55.3 -67.3 21 12.0 -55.6 260 21 374.8 374.8 301.4 374.9 0.03 21 142 13360 -53.3 -66.3 19 13.0 -53.7 256 22 384.2 384.2 302.9 384.4 0.04 22 118 14545 -55.3 -69.3 16 14.0 -55.7 242 25 401.4 401.4 305.4 401.6 0.03 23 100 15610 -50.7 -65.7 15 15.0 -51.4 230 27 429.8 429.8 308.9 430.1 0.06 24 74 17568 -51.1 -69.1 10 18.0 -52.1 234 30 467.6 467.6 312.4 467.8 0.05 25 70 17930 -49.9 -67.9 10 18.0 -51.1 235 31 477.6 477.6 313.3 478.0 0.06 26 64 18519 -46.7 -66.7 8 20.0 -48.4 234 33 497.1 497.1 314.8 497.5 0.08 27 61 18838 -45.7 -65.7 9 20.0 -47.7 233 35 506.2 506.2 315.4 506.7 0.09 28 52 19892 -49.3 -70.3 7 21.0 -51.0 231 39 521.4 521.4 316.4 521.8 0.06 29 50 20150 -47.9 -69.9 6 22.0 -49.8 230 40 530.6 530.6 317.0 531.0 0.06 30 48 20419 -47.7 -69.7 6 22.0 -49.8 537.3 537.3 317.4 537.7 0.07 TRP 234 10204 -61.7 -72.7 22 11.0 -61.8 280 62 320.3 320.3 288.9 320.4 0.01 WND 306 8514 -54.3 -66.5 21 12.1 -54.5 275 73 307.0 307.0 284.2 307.1 0.02 Sounding variables and indices 1000-500 mb thick: 5032.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.05 inches Sfc-500 mean rel hum: 23.10 % Est. max temperature: -6.18 C = 20.87 F Sfc-Lift cond lev (LCL): 961.27 mb = 494.72 m = 1623.06 ft T: -19.49 C 700-500 lapse rate: 5.60 C/km ThetaE index: 0.00 C Layer 1023.0--1821066112.0 mb Conv cond level (CCL): 1011.00 mb = 130.25 m = 427.33 ft Mean mixing ratio: 0.41 g/kg Conv temperature: -26.37 C = -15.47 F Cap Strength: 27.90 C Lifted Index: 29.72 C Risk: None Lifted Index @300 mb: 39.04 C Lifted Index @700 mb: 22.43 C Showalter Index: 17.88 C Risk: None Total Totals Index: 17.20 C Risk: None Vertical Totals Index: 17.60 C Cross Totals Index: -0.40 C K Index: -39.10 Risk: None Sweat Index: 86.00 Risk: None Energy Index: 4.63 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 80.86 J/kg Max Up Vert Vel: 12.72 m/s Conv Inhibition (B-): 46398.55 J/kg Cap Strength: 29.71 C Lift Cond Lev (LCL): 910.85 mb = 893.80 m = 2932.39 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 304 at 23 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 1023 48 250 9 8.5 3.1 | 146 19 -10.7 15.9 1 1000 208 260 13 12.8 2.3 | 157 16 -6.4 15.1 2 925 779 300 11 9.5 -5.5 | 127 12 -9.6 7.3 3 850 1409 270 19 19.0 -0.0 | 179 13 -0.2 12.8 4 700 2846 280 27 26.6 -4.7 | 222 11 7.4 8.2 5 500 5240 270 48 48.0 -0.0 | 246 32 28.8 12.8 6 400 6760 275 66 65.7 -5.8 | 261 47 46.6 7.1 7 306 8514 275 73 72.7 -6.4 | 263 54 53.6 6.5 8 300 8640 275 73 72.7 -6.4 | 263 54 53.6 6.5 9 250 9790 275 69 68.7 -6.0 | 262 50 49.6 6.8 10 234 10204 280 62 61.1 -10.8 | 267 42 41.9 2.1 11 200 11190 275 42 41.8 -3.7 | 248 24 22.7 9.2 12 150 13010 260 21 20.7 3.6 | 185 17 1.5 16.5 13 100 15610 230 27 20.7 17.4 | 183 30 1.5 30.2 14 70 17930 235 31 25.4 17.8 | 192 31 6.2 30.6 15 50 20150 230 40 30.6 25.7 | 197 40 11.5 38.6 Wind Parameters Mean winds (0-6000m): 273.8 at 30.7 knts Storm direction: 303.8 at 23.1 knts Shear (0-3000m) pos: 3.1 neg: 1.2 tot: 4.3 10-3/s Storm rel Dir Shear (0-3000m): 82.1 deg Storm rel helicity (0-3000m) pos: 71.9 neg: -21.2 tot: 50.7 m^2/s^2 ave: 16.9 10^-3 m/s^2 rel: 0.48 Storm rel vorticity (0-3000m) horiz: 5.8 stream: 2.8 10^-3/s Energy-Hel index: 0.03 Bulk Rich Number: 1.70 Bulk Shear: 47.60 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 ------------------------------------------------------------------------------- 500 267 12 152 15| 6.8 0.0 6.8| 14.6 -12.1 2.5 5.1 -0.02| 9.6 -0.2 1000 279 12 146 13| 4.7 0.0 4.7| 24.4 -21.2 3.2 3.2 0.03| 8.4 0.2 1500 276 14 154 13| 3.1 2.5 5.6| 44.1 -21.2 22.9 15.3 0.30| 8.2 2.5 2000 275 16 162 12| 3.1 1.8 4.9| 53.4 -21.2 32.2 16.1 0.38| 6.9 2.6 2500 276 17 170 11| 3.1 1.5 4.6| 62.6 -21.2 41.4 16.6 0.44| 6.2 2.7 3000 277 19 178 11| 3.1 1.2 4.3| 71.9 -21.2 50.7 16.9 0.48| 5.8 2.8 4000 277 22 196 11| 2.3 2.0 4.4| 87.8 -21.2 66.6 16.7 0.47| 5.5 2.6 5000 275 26 214 13| 1.9 2.6 4.5| 97.3 -21.2 76.1 15.2 0.41| 5.4 2.2 6000 274 31 227 16| 2.5 2.2 4.6|151.1 -21.2 129.9 21.7 0.43| 5.5 2.3 Wrote GIF file: /home/apache/climate/data/raob//U1946/skewt/U1946.skewt.20260117.00.gif