| 1. | United States hurricanes are still classified by central pressure from 1921 1979;
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| 2. | Estimated minimum central pressure is 970 mb . . . 28.64 inches.
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| 3. | Its central pressure bottomed out near towards 0000 UTC on June 30.
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| 4. | Estimated minimum central pressure is 994 mb or 29 . 35 inches.
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| 5. | Estimated minimum central pressure is 989 mb . . . 29.21 inches.
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| 6. | By the 24th, it had a minimum central pressure of 992 mbar.
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| 7. | Estimated minimum central pressure is 1001 mb . . . 29.56 inches.
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| 8. | Its minimum central pressure deepened to, and correspondingly, maximum sustained winds increased.
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| 9. | A minimum central pressure was read of 990 millibars within the storm.
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| 10. | The estimated central pressure at landfall was 980 mbar ( 28.95 inHg ).
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