courtesy of the Parks College Parachute Research Group, www.pcprg.com
written by Gary Peek, peek@pcprg.com
Based on data from 1900Z, valid from 1906Z, for use from 0200-0900Z (UTC)
Winds aloft data changes only four times per day.
There is no need to check winds aloft more often than that.
See http://aviationweather.gov/products/nws/winds/info.php
Currently 05/19/2013 at 0240Z (UTC), 05/18/2013 at 2140 EST
| . | Reporting Station BOS | Reporting Station BDL | Reporting Station BML | ||||||
| Altitude | Direction | Speed | Temp. | Direction | Speed | Temp. | Direction | Speed | Temp. |
| 30000 |  | 106 Knots 121.9 MPH | -44 C -47.2 F | | 92 Knots 105.8 MPH | -42 C -43.6 F | | 88 Knots 101.2 MPH | -46 C -50.8 F |
| 24000 |  | 57 Knots 65.5 MPH | -32 C -25.6 F | | 73 Knots 83.9 MPH | -27 C -16.6 F | | 55 Knots 63.2 MPH | -33 C -27.4 F |
| 18000 |  | 44 Knots 50.6 MPH | -21 C -5.8 F | | 40 Knots 46.0 MPH | -19 C -2.2 F | | 44 Knots 50.6 MPH | -22 C -7.6 F |
| 12000 | | 17 Knots 19.5 MPH | -9 C 15.8 F | | 19 Knots 21.8 MPH | -5 C 23.0 F | | 19 Knots 21.8 MPH | -11 C 12.2 F |
| 9000 |  | 10 Knots 11.5 MPH | -3 C 26.6 F | | 6 Knots 6.9 MPH | -1 C 30.2 F | | 15 Knots 17.2 MPH | -4 C 24.8 F |
| 6000 |  | 5 Knots 5.8 MPH | 4 C 39.2 F |  | 5 Knots 5.8 MPH | 5 C 41.0 F | | 7 Knots 8.0 MPH | 4 C 39.2 F |
| 3000 | | 17 Knots 19.5 MPH | N/R |  | 22 Knots 25.3 MPH | N/R |  | <5 Knots <6 MPH | N/R |