| |
Rules of thumb for estimating wind speed and direction based on local pressure gradients: |
|
(UIL-BLI) x 10 |
=
|
Use if gradient is positive. Results in west wind thru the Strait of Juan De Fuca. |
|
(UIL-BLI) x 5 |
= |
Use if gradient is negative. Results in east wind thru the Strait. |
|
(OTH-SEA) |
= |
South wind at SEA if gradient is
positive. North wind if gradient is negative. |
|
(PDX-BLI) x 5
|
=
|
South wind at SEA if gradient positive.
North wind if gradient negative. |
|
(OLM-BLI) x 10 |
= |
South wind at SEA if gradient positive.
North wind if gradient negative. |
|
(SEA-EAT) |
= |
Westerly component at SEA if gradient positive. Easterly if gradient negative. |
|
(SEA-GEG) |
= |
Westerly component at SEA if gradient positive. Easterly if gradient negative. |
|
(SEA-SMP) |
= |
Westerly component at SEA if gradient positive. Easterly if gradient negative. |