31.   A weak high pressure center north of Hispaniola to move southeast directly over Puerto Rico through Sunday.

32.   It weakened Thursday to a tropical depression and then became a low pressure center before regaining strength.

33.   Low pressure center southeast of Puerto Rico will move slowly north through Friday.

34.   Scattered showers and thunderstorms were expected from southern Arizona into the southern Plains, as a low pressure center over the Gulf of California continued to cycle in moisture.

35.   The high pressure center northeast of the Caribbean will continue to produce gusty east winds over the islands this afternoon.

36.   This moisture combined with local factors and an upper-level low pressure center over the Hispaniola to produce the showers and thunderstorms mentioned before.

37.   Weak high pressure centers across the west and the central Atlantic are producing light southeast winds across the northeast Caribbean.

38.   Forecasters said a low pressure center could send Hortense spinning to the north late Wednesday.

39.   Opal then dissipated into a simple low pressure center that meandered north into Canada with rain and modest winds.