could someone tell me

[storms in NC]

Okay I would like to know what and how they say TD#8 will curve to the E. I Am learning here. And no I am not a kid I am 50 thank for any help

[Brent]

From the NHC discussion:

THERE ARE A COUPLE OF WEAK 500 MB
SHORT-WAVE TROUGHS IN THE WESTERLIES THAT SHOULD HELP TO NUDGE THE
CYCLONE NORTHEASTWARD OVER THE NEXT COUPLE OF DAYS.

[senorpepr]

From the NHC discussion:

THERE ARE A COUPLE OF WEAK 500 MB
SHORT-WAVE TROUGHS IN THE WESTERLIES THAT SHOULD HELP TO NUDGE THE
CYCLONE NORTHEASTWARD OVER THE NEXT COUPLE OF DAYS.

To further elaborate on that for you, storms in NC, check out these 500mb Vorticity Charts (GFS).

500mb is considered mid-tropospheric or about 18,000 ft above sea level. From what the NHC's discussion said, a short-wave trough, or a weak "dip" of lower-pressure found only around the 500mb level will be caught up in the westerlies.

"Westerlies" are usually applied to the broad patterns of persistent winds with a westerly component. It is the dominant persistent atmospheric motion, centered over the mid-latitudes of each hemisphere. Near the earth's surface, the westerlies extend from approximately 35 to 65 degrees latitude, while in the upper levels they extend further polarward and equatorward.

So, this mid-troposheric area of lower pressure will act as a kicker and since it's currently west of Eight-L and since it's in the westerlies, the general movement is from the west. In other words, the trough is moving toward the east. This will kick 08L northeasterly with it.

Hopefully this helps.

-Mike

[storms in NC]

thank you very much that helped to understand.

[Tommedic]

That was a most informative response. Thanks for sharing with us all. As I don't ask a lot of questions, probably should, and I just kinda monitor, this helped me a lot. I came from old school with just a tracking chart, some historical data, and mostly a lot of "gut" feeling. Your continued input is a blessing.