UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025121200.upa.cvt Date: 0000Z 12 DEC 25 Searching for U4641... Searching the city database file for: U4641 ... Date:0000Z 12 DEC 25 Station: U4641 WMO ident: 24641 Latitude: 63.77 Longitude: 121.62 ------------------------------------------------------------------------------- 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 1003 111 -43.1 -46.3 71 3.2 -43.2 20 1 229.9 229.9 229.8 230.0 0.06 1 1000 131 -43.3 -46.3 72 3.0 -43.3 20 1 229.9 229.9 229.8 230.0 0.06 2 984 240 -42.9 -45.9 72 3.0 -43.0 359 1 231.3 231.3 231.2 231.5 0.06 3 971 331 -34.7 -38.0 72 3.3 -34.8 342 1 240.5 240.5 240.2 240.9 0.15 4 964 381 -33.1 -36.5 71 3.4 -33.3 333 1 242.6 242.6 242.3 243.1 0.17 5 925 672 -32.3 -35.8 71 3.5 -32.5 280 1 246.3 246.3 245.7 246.8 0.19 6 879 1033 -31.1 -34.6 71 3.5 -31.3 235 5 251.1 251.2 250.2 251.8 0.23 7 850 1270 -31.7 -35.2 71 3.5 -31.9 205 7 252.9 253.0 251.7 253.6 0.23 8 784 1841 -32.3 -35.8 71 3.5 -32.5 220 9 258.2 258.2 256.2 258.9 0.23 9 700 2634 -35.7 -39.1 71 3.4 -35.9 240 13 263.0 263.0 259.9 263.5 0.18 10 653 3116 -37.7 -41.1 70 3.4 -37.9 243 13 266.0 266.0 262.1 266.5 0.16 11 500 4920 -47.3 -50.8 67 3.5 -47.4 255 11 275.4 275.4 268.4 275.6 0.07 12 400 6370 -54.3 -57.9 64 3.6 -54.4 250 9 284.4 284.4 273.8 284.6 0.04 13 378 6732 -55.7 -59.3 64 3.6 -55.8 240 9 287.2 287.2 275.3 287.3 0.03 14 337 7462 -57.1 -60.8 63 3.7 -57.2 255 7 294.9 294.9 279.1 295.0 0.03 15 300 8200 -56.9 -60.6 63 3.7 -56.9 270 5 305.1 305.1 283.5 305.3 0.04 16 250 9360 -56.1 -59.9 62 3.8 -56.2 270 3 322.7 322.7 289.6 322.9 0.05 17 209 10492 -57.3 -61.2 61 3.9 -57.4 274 5 337.7 337.8 293.8 337.9 0.05 18 200 10770 -56.5 -60.4 61 3.9 -56.6 275 5 343.3 343.3 295.1 343.5 0.06 19 150 12590 -58.3 -62.3 60 4.0 -58.4 230 9 369.6 369.6 300.5 369.9 0.06 20 100 15120 -59.7 -63.8 59 4.1 -59.8 210 17 412.4 412.4 306.9 412.7 0.07 21 70 17340 -62.7 -67.0 56 4.3 -62.9 215 27 450.2 450.3 310.9 450.6 0.07 22 55 18810 -64.7 -69.1 55 4.4 -64.8 183 33 477.8 477.8 313.3 478.2 0.06 23 50 19390 -63.9 -68.4 54 4.5 -64.1 170 35 492.9 492.9 314.5 493.4 0.08 24 34 21774 -60.3 -65.2 52 4.9 -60.7 189 55 559.8 559.9 318.7 561.1 0.18 25 32 22153 -59.1 -64.1 52 5.0 -59.6 192 59 572.9 572.9 319.4 574.4 0.22 26 30 22560 -56.5 -61.5 53 5.0 -57.1 195 62 590.6 590.7 320.3 593.0 0.32 27 26 23469 -55.9 -60.9 53 5.0 -56.6 185 87 617.1 617.3 321.5 620.2 0.41 28 23 24251 -55.3 -60.3 54 5.0 -56.2 640.8 641.0 322.5 644.7 0.49 TRP 378 6732 -55.7 -59.3 64 3.6 -55.8 240 9 287.2 287.2 275.3 287.3 0.03 WND 26 23469 -55.9 -60.9 53 5.0 -56.6 185 87 617.1 617.3 321.5 620.2 0.41 Sounding variables and indices 1000-500 mb thick: 4789.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.05 inches Sfc-500 mean rel hum: 70.20 % Est. max temperature: -20.18 C = -4.33 F Sfc-Lift cond lev (LCL): 947.69 mb = 501.46 m = 1645.18 ft T: -32.77 C 700-500 lapse rate: 5.07 C/km ThetaE index: 0.00 C Layer 1000.0- 984.0 mb Conv cond level (CCL): 1000.00 mb = 131.00 m = 429.78 ft Mean mixing ratio: 0.15 g/kg Conv temperature: -37.10 C = -34.77 F Cap Strength: 21.52 C Lifted Index: 27.62 C Risk: None Lifted Index @300 mb: 44.95 C Lifted Index @700 mb: 19.24 C Showalter Index: 17.90 C Risk: None Total Totals Index: 27.70 C Risk: None Vertical Totals Index: 15.60 C Cross Totals Index: 12.10 C K Index: -23.00 Risk: None Sweat Index: 25.00 Risk: None Energy Index: 4.68 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 79.77 J/kg Max Up Vert Vel: 12.63 m/s Conv Inhibition (B-): 55825.24 J/kg Cap Strength: 27.56 C Lift Cond Lev (LCL): 911.20 mb = 778.27 m = 2553.34 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 273 at 7 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 1003 111 20 1 -0.3 -0.9 | 86 7 -7.4 -0.6 1 1000 131 20 1 -0.3 -0.9 | 86 7 -7.4 -0.6 2 925 672 280 1 1.0 -0.2 | 92 6 -6.1 0.2 3 850 1270 205 7 3.0 6.3 | 149 8 -4.1 6.7 4 700 2634 240 13 11.3 6.5 | 212 8 4.2 6.9 5 500 4920 255 11 10.6 2.8 | 228 5 3.6 3.2 6 400 6370 250 9 8.5 3.1 | 202 4 1.4 3.4 7 378 6732 240 9 7.8 4.5 | 189 5 0.8 4.9 8 300 8200 270 5 5.0 -0.0 | 100 2 -2.0 0.4 9 250 9360 270 3 3.0 -0.0 | 95 4 -4.0 0.4 10 200 10770 275 5 5.0 -0.4 | 88 2 -2.1 -0.1 11 150 12590 230 9 6.9 5.8 | 179 6 -0.1 6.2 12 100 15120 210 17 8.5 14.7 | 186 15 1.5 15.1 13 70 17340 215 27 15.5 22.1 | 201 24 8.5 22.5 14 50 19390 170 35 -6.1 34.5 | 159 37 -13.1 34.8 15 30 22560 195 62 16.0 59.9 | 189 61 9.0 60.3 Wind Parameters Mean winds (0-6000m): 243.0 at 9.4 knts Storm direction: 273.0 at 7.0 knts Shear (0-3000m) pos: 1.1 neg: 1.6 tot: 2.8 10-3/s Storm rel Dir Shear (0-3000m): 129.1 deg Storm rel helicity (0-3000m) pos: 25.6 neg: -0.2 tot: 25.5 m^2/s^2 ave: 8.5 10^-3 m/s^2 rel: 0.76 Storm rel vorticity (0-3000m) horiz: 3.3 stream: 2.5 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 6.64 Bulk Shear: 12.02 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 ------------------------------------------------------------------------------- 500 338 1 85 7| 0.0 1.4 1.4| 1.0 -0.2 0.8 1.6 0.31| 1.6 0.5 1000 249 2 102 5| 0.0 3.3 3.3| 6.0 -0.2 5.9 5.9 0.66| 3.7 2.4 1500 215 4 124 6| 0.0 3.2 3.2| 11.0 -0.2 10.9 7.2 0.63| 3.9 2.5 2000 219 5 139 6| 0.8 2.4 3.2| 17.3 -0.2 17.2 8.6 0.71| 3.8 2.7 2500 227 7 154 5| 1.3 1.9 3.3| 24.5 -0.2 24.3 9.7 0.76| 3.7 2.8 3000 231 7 166 5| 1.1 1.6 2.8| 25.6 -0.2 25.5 8.5 0.76| 3.3 2.5 4000 237 9 182 5| 0.9 1.2 2.1| 27.1 -0.2 26.9 6.7 0.74| 2.6 1.9 5000 241 9 192 5| 0.7 1.0 1.7| 27.9 -0.4 27.5 5.5 0.70| 2.3 1.6 6000 243 9 196 5| 0.6 0.8 1.4| 27.9 -1.9 26.0 4.3 0.60| 2.0 1.2 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20251212.00.gif