Severe thunderstorms and heavy rain will pose a risk of scattered wind damage and flash flooding from the Mid-Atlantic States to the Deep South on Sunday from mid-afternoon to early evening. Dangerous heat and humidity will continue over parts of the Southern High Plains and the central Gulf Coast. Life-threatening surf and rip currents continue along the East Coast. Read More >
Pacific ENSO Applications Climate Services
National Division
Monthly Precipitation Anomalies |
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Figure 3 |
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Figure 4 |
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Both Fig. 3 and Fig.4 show the deviation from the monthly total precipitation relative to historical average given in Fig. 2. and Table 1. However, the information in Fig. 3 is in unit of inches, while that in Fig. 4 is presented by percentage. |
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The monthly total precipitations at all six stations are slightly more than historical average during the El Niño year. However, from January to June of the year after an El Niño event, there is deficient precipitation. The maximum difference could reach as much as 3 inches (around 80%) less than its historical average amount at one station. During a La Niña event, on the other hand, moderate deficient precipitation took place in the first half of the La Niña year. While from October to the end of the next year there is more precipitation. Usually, there is 1-2 inches, or 20-40%, more than the historical average. |
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US Dept of Commerce
National Oceanic and Atmospheric Administration
National Weather Service
Pacific ENSO Applications Climate Services
Pacific ENSO Applications Climate Services
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