UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025121112.upa.cvt Date: 1200Z 11 DEC 25 Searching for U1946... Searching the city database file for: U1946 ... Date:1200Z 11 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 ------------------------------------------------------------------------------- 0 1000 30 60 15 SFC 998 45 -19.1 -21.4 82 2.3 -19.4 60 15 254.2 254.3 253.8 256.1 0.69 2 949 420 -19.9 -23.2 75 3.3 -20.4 67 22 257.1 257.2 256.1 258.8 0.62 3 928 587 -15.1 -18.1 78 3.0 -15.7 70 25 263.6 263.8 262.0 266.4 0.99 4 925 612 -15.3 -18.2 78 2.9 -15.9 70 25 263.7 263.8 262.0 266.4 0.98 5 873 1048 -15.1 -17.4 83 2.3 -15.6 77 24 268.3 268.5 265.6 271.4 1.12 6 850 1249 -16.1 -18.6 81 2.5 -16.6 80 23 269.3 269.4 266.1 272.2 1.04 7 747 2214 -20.1 -22.5 81 2.4 -20.5 73 24 275.1 275.2 269.6 277.5 0.84 8 700 2692 -23.3 -26.2 77 2.9 -23.7 70 25 276.7 276.8 270.3 278.6 0.64 9 580 4047 -31.7 -34.4 77 2.7 -31.9 76 14 282.2 282.2 273.1 283.3 0.36 10 500 5080 -40.3 -43.9 68 3.6 -40.5 80 5 283.9 283.9 273.7 284.4 0.16 11 425 6158 -49.5 -53.8 61 4.3 -49.6 91 15 285.7 285.7 274.5 285.9 0.06 12 400 6550 -51.7 -55.9 61 4.2 -51.8 95 19 287.8 287.8 275.6 288.0 0.05 13 314 8094 -59.7 -64.0 57 4.3 -59.7 110 23 297.3 297.3 280.1 297.4 0.02 14 313 8114 -59.7 -64.0 57 4.3 -59.7 111 23 297.6 297.6 280.3 297.6 0.02 15 300 8380 -58.7 -63.1 57 4.4 -58.7 120 21 302.6 302.6 282.5 302.7 0.03 16 260 9282 -57.9 -62.5 56 4.6 -58.0 136 26 316.4 316.4 287.6 316.5 0.03 17 250 9530 -56.3 -60.8 57 4.5 -56.4 140 27 322.4 322.4 289.5 322.5 0.04 18 231 10034 -53.3 -58.2 55 4.9 -53.4 149 26 334.3 334.3 292.9 334.6 0.06 19 200 10960 -53.3 -59.3 48 6.0 -53.5 165 25 348.4 348.4 296.3 348.6 0.06 20 150 12820 -50.7 -58.7 38 8.0 -51.1 180 38 382.7 382.7 302.8 383.1 0.09 21 144 13087 -50.3 -58.3 38 8.0 -50.7 179 40 387.9 387.9 303.5 388.4 0.10 22 100 15460 -52.7 -64.7 22 12.0 -53.2 175 54 425.9 425.9 308.4 426.2 0.06 23 98 15590 -52.7 -64.7 22 12.0 -53.2 428.4 428.4 308.7 428.7 0.07 24 92 15997 -53.9 -65.9 22 12.0 -54.4 433.8 433.8 309.3 434.1 0.06 TRP 314 8094 -59.7 -64.0 57 4.3 -59.7 110 23 297.3 297.3 280.1 297.4 0.02 WND Sounding variables and indices 1000-500 mb thick: 5050.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.15 inches Sfc-500 mean rel hum: 77.58 % Est. max temperature: -3.92 C = 24.95 F Sfc-Lift cond lev (LCL): 961.02 mb = 325.95 m = 1069.37 ft T: -19.70 C 700-500 lapse rate: 7.12 C/km ThetaE index: 0.00 C Layer 998.0- -0.2 mb Conv cond level (CCL): 689.69 mb = 2798.98 m = 9182.88 ft Mean mixing ratio: 0.80 g/kg Conv temperature: 3.82 C = 38.87 F Cap Strength: 17.73 C Lifted Index: 18.33 C Risk: None Lifted Index @300 mb: 29.02 C Lifted Index @700 mb: 14.18 C Showalter Index: 9.78 C Risk: None Total Totals Index: 45.90 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 24.20 C Cross Totals Index: 21.70 C K Index: 2.70 Risk: None Sweat Index: 51.00 Risk: None Energy Index: 2.60 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 55.13 J/kg Max Up Vert Vel: 10.50 m/s Conv Inhibition (B-): 25681.12 J/kg Cap Strength: 18.27 C Lift Cond Lev (LCL): 906.59 mb = 763.49 m = 2504.86 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 104 at 13 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 ---------------------------------------------------------- 0 998 45 60 15 -13.0 -7.5 | 1 11 -0.2 -10.7 1 925 612 70 25 -23.5 -8.6 | 42 16 -10.7 -11.7 2 850 1249 80 23 -22.7 -4.0 | 54 12 -9.9 -7.2 3 700 2692 70 25 -23.5 -8.6 | 42 16 -10.7 -11.7 4 500 5080 80 5 -4.9 -0.9 | 297 9 7.9 -4.0 5 400 6550 95 19 -18.9 1.7 | 76 6 -6.1 -1.5 6 314 8094 110 23 -21.6 7.9 | 118 10 -8.8 4.7 7 300 8380 120 21 -18.2 10.5 | 144 9 -5.4 7.3 8 250 9530 140 27 -17.4 20.7 | 165 18 -4.6 17.5 9 200 10960 165 25 -6.5 24.1 | 197 22 6.3 21.0 10 150 12820 180 38 0.0 38.0 | 200 37 12.8 34.8 11 100 15460 175 54 -4.7 53.8 | 189 51 8.1 50.6 Wind Parameters Mean winds (0-6000m): 74.0 at 17.6 knts Storm direction: 104.0 at 13.2 knts Shear (0-3000m) pos: 1.4 neg: 0.6 tot: 2.0 10-3/s Storm rel Dir Shear (0-3000m): 37.5 deg Storm rel helicity (0-3000m) pos: 41.6 neg: -14.1 tot: 27.5 m^2/s^2 ave: 9.2 10^-3 m/s^2 rel: 0.37 Storm rel vorticity (0-3000m) horiz: 3.8 stream: 1.4 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 39.97 Bulk Shear: 1.38 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 66 19 24 12| 9.6 0.0 9.6| 27.1 0.0 27.1 54.1 0.87| 9.6 8.4 1000 70 22 36 13| 5.3 0.0 5.3| 38.6 0.0 38.6 38.6 0.82| 7.0 5.7 1500 73 22 41 13| 3.5 0.0 3.5| 41.6 -1.8 39.7 26.5 0.72| 5.4 3.9 2000 74 23 43 13| 2.6 0.4 3.0| 41.6 -5.3 36.3 18.1 0.60| 4.5 2.7 2500 73 23 44 13| 2.1 0.7 2.8| 41.6 -9.2 32.3 12.9 0.49| 3.9 1.9 3000 73 23 43 14| 1.4 0.6 2.0| 41.6 -14.1 27.5 9.2 0.37| 3.8 1.4 4000 73 22 40 13| 0.9 0.4 1.4| 41.6 -26.5 15.1 3.8 0.10| 4.0 0.4 5000 73 19 32 11| 1.3 0.3 1.7| 41.6 -39.7 1.9 0.4 -0.12| 4.0 -0.5 6000 74 18 27 9| 0.9 0.3 1.2| 50.6 -39.7 10.9 1.8 0.05| 4.1 0.2 Wrote GIF file: /home/apache/climate/data/raob//U1946/skewt/U1946.skewt.20251211.12.gif