Hurricane and Tropical Cyclones

Tropical Storm

Tropical Storm Gretchen

Storm Activity: Sep 11, 1966 - Sep 12, 1966

Peak Wind

40 mph

Lowest Pressure

--

Duration

18 hours

Last Position

13 N 142.5 W

Storm Track

Sep 11 – Sep 12

Storm Category

1. Tropical Depression < 39 mph
2. Tropical Storm Peak 39-73 mph
3. Category 1 74-95 mph
4. Category 2 96-110 mph
5. Category 3 111-129 mph
6. Category 4 130-156 mph
7. Category 5 157+ mph

Intensity

Sustained wind at each observation

Peak wind

40 mph

Peak category

Tropical Storm

Lowest pressure

--

Sep 12 · 00:00 GMT 30 mph -- Tropical Depression

39

74

111

157

Sep 11Sep 12

Storm Track Statistics

Date↓	Time	Lat	Lon	Wind	Pressure	Storm Type	Category
Sep 12	00:00 GMT	13	-142.5	30 mph	--	Tropical Depression	--
Sep 11	21:00 GMT	13.23	-142.16	30 mph	--	Tropical Depression	--
Sep 11	18:00 GMT	13.5	-141.8	30 mph	--	Tropical Depression	--
Sep 11	15:00 GMT	13.84	-141.43	30 mph	--	Tropical Depression	--
Sep 11	12:00 GMT	14.2	-141.1	35 mph	--	Tropical Depression	--
Sep 11	09:00 GMT	14.56	-140.87	35 mph	--	Tropical Depression	--
Sep 11	06:00 GMT	14.9	-140.7	40 mph	--	Tropical Storm	--

Learn more about Tropical Storm Gretchen and the 1966 Central Pacific hurricane season in our hurricane archive.

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