41.   The tropical moisture interacted with a frontal boundary to produce a large swath of rain in the northeastern United States.

42.   The stationary frontal boundary stretched from Texas into North Carolina.

43.   The southern end of a frontal boundary will remain over our area before weakening even this afternoon.

44.   The weak frontal boundary that has been affecting our local area for the past few days will remain stationary at least through tonight.

45.   The weakened frontal boundary will find its way into Puerto Rico late Thursday and the Virgin Islands early Friday.

46.   This frontal boundary is expected to reach the northwest coast of puerto rico around sunrise monday.

47.   This frontal boundary may pose a problem for Puerto Rico and the Virgin Islands Tuesday and Wednesday.

48.   Weak frontal boundary southwest to northeast across Virgin Islands today nearly stationary and slowly dissipating.

49.   Weak high pressure and mild northeast winds have built in across the local Atlantic behind the weak frontal boundary.

50.   Weakening cold frontal boundary across Puerto Rico this evening will remain nearly stationary tonight.

a. + boundary >>共 424
national 8.78%
political 3.71%
new 3.64%
frontal 3.51%
international 2.34%
maritime 2.34%
state 2.08%
geographical 1.69%
old 1.56%
traditional 1.50%
frontal + n. >>共 53
assault 17.06%
boundary 15.88%
system 13.24%
nudity 10.88%
trough 8.24%
attack 6.76%
crash 2.94%
zone 2.65%
collision 1.76%
cortex 1.76%
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