UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120200.upa.cvt Date: 0000Z 2 DEC 25 Searching for U4688... Searching the city database file for: U4688 ... Date:0000Z 2 DEC 25 Station: U4688 WMO ident: 24688 Latitude: 63.27 Longitude: 143.15 ------------------------------------------------------------------------------- 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 253 SFC 934 741 -32.9 -35.4 78 2.5 -33.0 50 1 245.0 245.0 244.6 245.5 0.20 2 927 794 -30.9 -34.5 71 3.6 -31.1 62 3 247.6 247.6 247.0 248.2 0.22 3 925 810 -31.1 -34.7 71 3.6 -31.3 65 3 247.5 247.5 246.9 248.1 0.22 4 893 1058 -29.1 -32.9 70 3.8 -29.4 92 6 252.1 252.1 251.1 252.8 0.27 5 850 1413 -22.5 -25.9 74 3.4 -22.9 130 11 262.6 262.7 260.3 264.1 0.54 6 815 1725 -17.7 -21.0 75 3.3 -18.3 139 11 270.8 271.0 266.9 273.4 0.88 7 770 2151 -17.3 -20.2 78 2.9 -17.9 150 11 275.7 275.9 270.3 278.6 1.00 8 700 2859 -22.5 -25.3 78 2.8 -22.9 170 11 277.6 277.7 270.9 279.7 0.70 9 581 4203 -30.7 -33.8 74 3.1 -31.0 170 10 283.2 283.2 273.6 284.4 0.38 10 500 5250 -39.1 -42.3 72 3.2 -39.3 170 9 285.4 285.4 274.5 286.0 0.18 11 450 5961 -45.5 -48.7 70 3.2 -45.6 182 19 286.1 286.1 274.8 286.4 0.10 12 400 6740 -48.5 -51.8 68 3.3 -48.6 195 31 292.0 292.0 277.7 292.2 0.08 13 383 7024 -49.9 -53.3 67 3.4 -50.0 198 36 293.8 293.8 278.6 294.0 0.07 14 304 8498 -60.1 -63.5 64 3.4 -60.2 215 60 299.5 299.5 281.1 299.6 0.02 15 300 8580 -60.7 -64.1 64 3.4 -60.7 215 58 299.8 299.8 281.3 299.9 0.02 16 285 8899 -63.5 -67.0 62 3.5 -63.5 215 53 300.2 300.2 281.4 300.3 0.02 17 282 8965 -63.7 -67.2 62 3.5 -63.7 215 52 300.8 300.8 281.7 300.9 0.02 18 250 9710 -63.1 -66.6 62 3.5 -63.1 200 38 312.3 312.3 286.2 312.3 0.02 19 200 11080 -61.1 -64.6 63 3.5 -61.2 185 33 336.0 336.0 293.3 336.1 0.03 20 150 12880 -59.5 -63.3 61 3.8 -59.6 180 33 367.6 367.6 300.2 367.8 0.05 21 144 13134 -59.9 -63.7 61 3.8 -60.0 181 33 371.2 371.2 300.8 371.4 0.05 22 132 13682 -55.7 -59.5 62 3.8 -55.8 182 33 388.0 388.1 303.6 388.5 0.10 23 101 15368 -59.5 -63.4 60 3.9 -59.6 185 33 411.6 411.6 306.7 412.0 0.08 24 100 15430 -59.7 -63.6 60 3.9 -59.8 185 33 412.4 412.4 306.9 412.8 0.07 25 88 16234 -56.5 -60.2 63 3.7 -56.7 183 36 434.1 434.2 309.3 434.8 0.13 26 70 17680 -58.1 -62.0 61 3.9 -58.3 180 42 460.1 460.1 311.8 460.8 0.13 27 50 19800 -58.5 -62.4 61 3.9 -58.7 175 42 505.6 505.7 315.4 506.7 0.17 28 43 20749 -58.7 -62.7 60 4.0 -59.0 175 46 527.4 527.5 316.8 528.7 0.19 29 37 21699 -56.5 -60.2 63 3.7 -56.9 175 49 556.2 556.3 318.5 558.4 0.31 30 34 22241 -52.1 -56.0 63 3.9 -52.8 175 51 581.4 581.6 319.9 585.5 0.57 31 30 23050 -53.3 -57.3 62 4.0 -54.0 175 54 599.3 599.5 320.7 603.4 0.55 32 25 24224 -54.7 -58.6 62 3.9 -55.4 182 64 627.4 627.6 322.0 631.7 0.56 33 20 25680 -47.1 -50.9 65 3.8 -48.6 190 77 692.0 692.8 324.7 706.9 1.79 34 18 26384 -43.5 -47.5 65 4.0 -45.4 192 81 724.5 725.8 325.9 749.9 2.92 35 17 26769 -43.7 -47.8 64 4.1 -45.7 192 83 735.8 737.2 326.3 762.3 3.00 36 10 30400 -35.7 -39.8 66 4.1 -38.8 200 103 886.3 892.9 331.5 1019.2 12.23 37 9.1 31058 -34.1 -38.2 66 4.1 -37.4 916.6 925.5 332.6 1098.3 15.94 38 8.4 31617 -35.5 -39.6 66 4.1 -38.8 932.4 940.9 332.7 1105.6 14.93 TRP 282 8965 -63.7 -67.2 62 3.5 -63.7 215 52 300.8 300.8 281.7 300.9 0.02 WND 304 8498 -60.1 -63.5 64 3.4 -60.2 215 60 299.5 299.5 281.1 299.6 0.02 Sounding variables and indices 1000-500 mb thick: 4997.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.15 inches Sfc-500 mean rel hum: 74.82 % Est. max temperature: -4.30 C = 24.27 F Sfc-Lift cond lev (LCL): 895.01 mb = 1042.61 m = 3420.58 ft T: -29.23 C 700-500 lapse rate: 6.94 C/km ThetaE index: 0.06 C Layer 925.0- 893.0 mb Conv cond level (CCL): 934.00 mb = 740.56 m = 2429.62 ft Mean mixing ratio: 0.37 g/kg Conv temperature: -28.96 C = -20.13 F Cap Strength: 23.13 C Lifted Index: 23.87 C Risk: None Lifted Index @300 mb: 30.80 C Lifted Index @700 mb: 19.55 C Showalter Index: 17.54 C Risk: None Total Totals Index: 29.80 C Risk: None Vertical Totals Index: 16.60 C Cross Totals Index: 13.20 C K Index: -12.10 Risk: None Sweat Index: 31.00 Risk: None Energy Index: 4.75 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 77.39 J/kg Max Up Vert Vel: 12.44 m/s Conv Inhibition (B-): 75334.70 J/kg Cap Strength: 23.86 C Lift Cond Lev (LCL): 843.31 mb = 1471.68 m = 4828.30 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 202 at 9 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 ---------------------------------------------------------- 0 934 741 50 1 -0.8 -0.6 | 25 10 -4.3 -9.3 1 925 810 65 3 -2.7 -1.3 | 32 12 -6.2 -9.9 2 850 1413 130 11 -8.4 7.1 | 82 12 -11.9 -1.6 3 700 2859 170 11 -1.9 10.8 | 112 6 -5.4 2.2 4 500 5250 170 9 -1.6 8.9 | 92 5 -5.1 0.2 5 400 6740 195 31 8.0 29.9 | 192 22 4.5 21.3 6 304 8498 215 60 34.4 49.1 | 217 51 30.9 40.5 7 300 8580 215 58 33.3 47.5 | 217 49 29.8 38.8 8 282 8965 215 52 29.8 42.6 | 218 43 26.3 33.9 9 250 9710 200 38 13.0 35.7 | 199 29 9.5 27.0 10 200 11080 185 33 2.9 32.9 | 179 24 -0.6 24.2 11 150 12880 180 33 0.0 33.0 | 172 25 -3.5 24.3 12 100 15430 185 33 2.9 32.9 | 179 24 -0.6 24.2 13 70 17680 180 42 0.0 42.0 | 174 34 -3.5 33.3 14 50 19800 175 42 -3.7 41.8 | 168 34 -7.2 33.2 15 30 23050 175 54 -4.7 53.8 | 170 46 -8.2 45.1 16 20 25680 190 77 13.4 75.8 | 188 68 9.9 67.2 17 10 30400 200 103 35.2 96.8 | 200 94 31.7 88.1 Wind Parameters Mean winds (0-6000m): 172.0 at 12.5 knts Storm direction: 202.0 at 9.4 knts Shear (0-3000m) pos: 1.9 neg: 0.1 tot: 2.0 10-3/s Storm rel Dir Shear (0-3000m): 80.6 deg Storm rel helicity (0-3000m) pos: 51.7 neg: -0.9 tot: 50.8 m^2/s^2 ave: 16.9 10^-3 m/s^2 rel: 0.75 Storm rel vorticity (0-3000m) horiz: 3.7 stream: 2.8 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 3.97 Bulk Shear: 19.48 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 98 5 48 12| 8.5 0.0 8.5| 28.3 0.0 28.3 56.6 0.91| 9.8 8.9 1000 124 8 67 11| 5.7 0.0 5.7| 44.3 0.0 44.3 44.3 0.90| 7.8 7.0 1500 133 9 75 10| 3.9 0.0 3.9| 48.4 0.0 48.4 32.2 0.85| 6.1 5.2 2000 141 9 82 10| 3.0 0.0 3.0| 51.2 0.0 51.2 25.6 0.81| 5.3 4.3 2500 147 10 87 9| 2.3 0.0 2.3| 51.7 -0.3 51.3 20.5 0.78| 4.4 3.4 3000 152 10 90 8| 1.9 0.1 2.0| 51.7 -0.9 50.8 16.9 0.75| 3.7 2.8 4000 157 10 93 7| 1.4 0.2 1.6| 51.7 -2.0 49.7 12.4 0.69| 2.9 2.0 5000 161 10 97 7| 1.9 0.2 2.1| 62.3 -2.5 59.7 11.9 0.71| 3.1 2.2 6000 172 12 125 6| 2.9 0.1 3.0|100.0 -2.5 97.4 16.2 0.67| 4.0 2.7 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20251202.00.gif