courtesy of the Parks College Parachute Research Group, www.pcprg.com
written by Gary Peek, peek@pcprg.com
Based on data from 2918Z, valid from 3000Z, for use from 2000-0300Z (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 01/29/2015 at 2219Z (UTC), 01/29/2015 at 1719 EST
| . | Reporting Station BOS | Reporting Station BDL | Reporting Station BML | ||||||
| Altitude | Direction | Speed | Temp. | Direction | Speed | Temp. | Direction | Speed | Temp. |
| 30000 |  | 35 Knots 40.2 MPH | -48 C -54.4 F |  | 42 Knots 48.3 MPH | -49 C -56.2 F | | 36 Knots 41.4 MPH | -49 C -56.2 F |
| 24000 | | 25 Knots 28.7 MPH | -33 C -27.4 F |  | 28 Knots 32.2 MPH | -32 C -25.6 F | | 30 Knots 34.5 MPH | -33 C -27.4 F |
| 18000 | | 22 Knots 25.3 MPH | -21 C -5.8 F | | 28 Knots 32.2 MPH | -20 C -4.0 F |  | 28 Knots 32.2 MPH | -21 C -5.8 F |
| 12000 | | 22 Knots 25.3 MPH | -11 C 12.2 F |  | 35 Knots 40.2 MPH | -9 C 15.8 F | | 29 Knots 33.3 MPH | -10 C 14.0 F |
| 9000 | | 25 Knots 28.7 MPH | -6 C 21.2 F |  | 32 Knots 36.8 MPH | -6 C 21.2 F | | 33 Knots 37.9 MPH | -8 C 17.6 F |
| 6000 | | 21 Knots 24.1 MPH | -3 C 26.6 F | | 31 Knots 35.6 MPH | -5 C 23.0 F |  | 33 Knots 37.9 MPH | -4 C 24.8 F |
| 3000 |  | 20 Knots 23.0 MPH | N/R | | 30 Knots 34.5 MPH | N/R |  | 28 Knots 32.2 MPH | N/R |