In Alaska, light to moderate precipitation (0.3 to 1 inch) fell on portions of the south-central and southeastern coasts, and on west-central interior sections. Locally, 2 to 4 inches of rain was observed on Kodiak Island and on the eastern Kenai Peninsula, but amounts were not large enough to eliminate long-term deficits. In the short-term (30- to 90-days), precipitation in southwestern and southeastern Alaska is close to or above-normal, however, in the long-term (since September 1, 2010, the start of the cold season), much larger deficits have accumulated. This included departures of -10 to -30 inches since September 1 along the normally wetter coastal locations. Accordingly, the D0(H) area was slightly modified to depict the larger long-term deficits.
Looking Ahead: During the next 5 days (May 26-30), a cold front will gradually push eastward out of the Nation’s midsection and off the East Coast later this week, bringing showers and thunderstorms to the eastern third of the Nation. Meanwhile, a series of Pacific storm systems will impact the Northwest and track into the northern Plains and upper Midwest, dropping light to moderate precipitation across the northern third of the U.S. Unfortunately, the southern tier of States will see little or no precipitation, although the Southeast may receive some light rain from the frontal passage. Shower activity may increase over the weekend in southern Florida. Above-normal readings will gradually spread from the southern Plains and South and push northward into the Midwest and East, while the West remains cool. Highs near 100 deg F may occur in parts of the Southeast by May 31.
The 6-10 day CPC outlook (May 31-June 4) calls for enhanced odds of subnormal precipitation from the central and southern Rockies across the south-central Plains and eastward throughout most of the Southeast and Atlantic Coast States. Above-normal precipitation is expected in the Northwest and upper Midwest. Subnormal temperatures are forecast for the Far West while unseasonable warmth envelops the eastern half of the Nation. In Alaska, wetter and warmer weather is probable in the southwest while drier and cooler conditions are expected in the east.
Author: David Miskus, NOAA/NWS/NCEP/CPC
D0 ... Abnormally Dry ... used for areas showing dryness but not yet in drought, or for areas recovering from drought.
Drought Intensity Categories
D1 ... Moderate Drought
D2 ... Severe Drought
D3 ... Extreme Drought
D4 ... Exceptional Drought
Drought or Dryness Types
A ... Agricultural
H ... Hydrological