Current Drought Monitor Map for Puerto Rico and the U.S. Virgin Islands
United States Drought Monitor
Summary for Puerto Rico this week
No changes were made this week for Puerto Rico.
U.S. Virgin Islands
Summary for the U.S. Virgin Islands this week
St. Thomas precipitation total for the week was 0.67 inch at the Cyril E. King Airport and 0.72 inch at the CoCoRaHS station at Anna’s Retreat. For the month-to-date, the airport had 2.10 inches of rain, which is 126.5% of normal January precipitation. The CoCoRaHS station was slightly higher at 3.47 inches of rain. SPI values at all levels indicated drought free conditions for St. Thomas.
St. Croix’s airport precipitation for the week was only 0.29 inch of rain; however, the CoCoRaHS station at Christiansted was higher at 1.02 inches. The month-to-date rainfall of 2.23 inches at the airport was 147.7% of normal January precipitation. The CoCoRAHS station had 2.5 inches of rain for the month-to-date. However, SPI values at the 3, 9, and 12 months indicated moderate drought conditions, while the 6 month SPI value (-1.44) indicated severe drought. For this week, moderate drought continued in St. Croix.
This week’s precipitation total was 1.47 inches at Windswept Beach. The month-to-date precipitation of 3.81 inches was 130.0% of normal precipitation and the wettest January since 2008 and, as of January 21, the sixth wettest January since 1993. January 1996 is the wettest January with 5.98 inches of rain for the month. SPI values at all levels indicate drought free conditions for this location. For this reason drought free conditions were unchanged for St. John this week.
About the Drought Classification
The Drought Monitor summary map identifies general areas of drought and labels them by intensity. D1 is the least intense level and D4 the most intense. Drought is defined as a moisture deficit bad enough to have social, environmental or economic effects.
D0 areas are not in drought, but are experiencing abnormally dry conditions that could turn into drought or are recovering from drought but are not yet back to normal.
We generally include a description on the map of what the primary physical effects are for short- and long-term drought.
- S = Drought typically less than 6 months (e.g. agriculture and grasslands)
- L = Drought typically more than 6 months (e.g. hydrology, ecology)
Source: United States Drought Monitor
The U.S. Drought Monitor is jointly produced by the National Drought Mitigation Center at the University of Nebraska-Lincoln, the United States Department of Agriculture, and the National Oceanic and Atmospheric Administration. Map courtesy of NDMC.