Invest #91L
Tropical Disturbance Summary
Invest #91L
Location: Central Atlantic     Lat: 13.1N Lon: 53.3W     Moving: WSW 15 mph (13 kts)     Pressure: 29.77 in (1008 mb)    
Invest #91L Track History
Date Position Moving Speed Pressure Winds
(UTC) Lat Lon mph (kts) in (mb) mph (kts)
1200 THU AUG 17 13.1N 53.3W WSW 15 (13) 29.77 (1008) 35 (30)
0600 THU AUG 17 13.4N 52.0W W 16 (14) 29.77 (1008) 29 (25)
0000 THU AUG 17 13.6N 50.6W W 18 (16) 29.83 (1010) 29 (25)
1800 WED AUG 16 13.6N 49.0W W 18 (16) 29.8 (1009) 29 (25)
1200 WED AUG 16 13.7N 47.4W W 18 (16) 29.83 (1010) 29 (25)
0600 WED AUG 16 13.7N 45.8W W 17 (15) 29.83 (1010) 29 (25)
0000 WED AUG 16 13.8N 44.3W W 17 (15) 29.85 (1011) 29 (25)
1800 TUE AUG 15 13.8N 42.8W W 19 (17) 29.85 (1011) 29 (25)
1200 TUE AUG 15 13.7N 41.1W W 20 (17) 29.85 (1011) 29 (25)
0600 TUE AUG 15 13.5N 39.3W W 23 (20) 29.85 (1011) 29 (25)
0000 TUE AUG 15 13.2N 37.3W W 19 (17) 29.85 (1011) 29 (25)
1800 MON AUG 14 12.9N 35.6W W 18 (16) 29.85 (1011) 29 (25)
1200 MON AUG 14 12.6N 34.0W W 19 (17) 29.85 (1011) 29 (25)
0600 MON AUG 14 12.4N 32.3W W 18 (16) 29.83 (1010) 29 (25)
0000 MON AUG 14 12.2N 30.7W W 19 (17) 29.83 (1010) 29 (25)
1800 SUN AUG 13 12.0N 29.0W W 18 (16) 29.83 (1010) 29 (25)
1200 SUN AUG 13 12.0N 27.4W - - 29.83 (1010) 29 (25)
What is a Tropical Invest?

A weather system for which a tropical cyclone forecast center (NHC, CPHC, or JTWC) is interested in collecting specialized data sets (e.g., microwave imagery) and/or running model guidance. Once a system has been designated as an invest, data collection and processing is initiated on a number of government and academic web sites, including the Naval Research Laboratory (NRL) and the University of Wisconsin Cooperative Institute for Meteorological Satellite Studies (UW-CIMSS). The designation of a system as an invest does not correspond to any particular likelihood of development of the system into a tropical cyclone; operational products such as the Tropical Weather Outlook or the JTWC/TCFA should be consulted for this purpose.

source: NHC/NOAA
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