Tropical Storm Peter
| Tropical Storm (SSHWS/NWS) | |
| File:Peter Dec 9 2003 1535Z.jpg Tropical Storm Peter at peak intensity on December 9 | |
| Formed | December 7 |
|---|---|
| Dissipated | December 11 |
| Highest winds | 1-minute sustained: 70 mph (110 km/h) |
| Lowest pressure | 990 mbar (hPa); 29.23 inHg |
| Fatalities | None |
| Damage | None |
| Areas affected | None |
| Part of the 2003 Atlantic hurricane season | |
Tropical Storm Peter was a short-lived tropical storm that formed after the end of the Atlantic hurricane season. It formed from an extratropical storm, and at first, it was a subtropical cyclone. However, as it moved over warmer waters, it began to gain strength. On December 9, 2003, it became a tropical cyclone.
Meteorological History
A large extratropical gale was located in the far eastern Atlantic on 5 December. The gale cut off from the westerlies and moved southward for two days. By 7 December, the gale began to develop some convection and it is estimated that it became a subtropical storm at 1800 UTC 7 December. As the cyclone moved farther south over warmer waters, the convection became concentrated near the center and it developed well-defined cyclonically-curved bands of showers suggesting that the cyclone had acquired tropical characteristics. It is estimated that Peter became a tropical storm at 0600 UTC 9 December and reached its maximum winds of 60 knots and a minimum pressure of 990 mb around 1800 UTC 9 December while located about 700 n mi west- northwest of the Cape Verde Islands. Figure 1 shows Tropical Storm Peter during its most impressive satellite presentation. By then, Peter was already moving northward ahead of a strong approaching cold front. This was the same frontal system that had absorbed Tropical Storm Odette a few days earlier. Thereafter, the effects of strong upper-level winds and cooler sea-surface temperatures caused a rather rapid weakening of the tropical cyclone. By 0000 UTC on 10 December, the satellite appearance had deteriorated significantly and by 1200 UTC Peter was a tight swirl of low clouds with estimated winds of 30 knots. Peter continued to move toward the north and north-northeastward over cooler waters and became an extratropical low by 0600 UTC 11 December. A few hours later, the system was absorbed by a cold front.
Impact
Peter stayed over the open Atlantic Ocean for its entire lifetime. It did not affect land. Because of this, there were no deaths or damages. The storm formed in the month of December, which is rare, since most storms in the Atlantic exist between June and November.
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