For the second full week of October expect cool in the east (centered over the Ohio Valley), warm in the Pacific NW, and near normal temperatures elsewhere.

This week reinforces the pattern of a ridge in the west and a trough in the east. An upper low over the NE this morning will gradually head northeast and out of the region early in the week, to be replace by an upper low currently over the southern Gulf states. It too will lift NE toward the eastern Great Lakes early Wednesday, just as a strong cold front pushes into the Northern Plains. Quite cold conditions will spread from there into the Midwest and Ohio Valley during the latter half of the week. Out west the upper ridge will grow. Off the California coast. a weak upper low will form later this week with the ridge to its north. This is a very stable blocking pattern which means that it is likely the east will remain cool and west mild well through the middle of the month.

Reported NG injection should be near to a little below average this Thursday; next Thursday (the 11th) NG injections should drop as the effects of the cold pattern developing over the east intensify.