A Pacific storm is bringing areas of low elevation rain, moderate to heavy mountain snow, and high winds to the Northwest. Strong Santa Ana winds and very dry conditions are producing elevated to critical fire weather conditions in southern California. Isolated strong to severe thunderstorms are possible through early Wednesday morning across parts of northeast Texas into western Tennessee. Read More >
Jackson, Mississippi
Weather Forecast Office
The drought index may be computed for any desired level of mean annual rainfall. But to simplify the computations, five tables of drought factors were made up. Each table covers a specified range of mean annual rainfall. The measurements needed for the drought index are the (1) the maximum air temperature (or the drybulb temperature at time of standard observation) and (2) the total rainfall for the past 24 hours.
| Index | Stage |
|---|---|
| 99 | 0 |
| 199 | 1 |
| 299 | 2 |
| 399 | 3 |
| 499 | 4 |
| 599 | 5 |
| 699 | 6 |
| 800 | 7 |
US Dept of Commerce
National Oceanic and Atmospheric Administration
National Weather Service
Jackson, Mississippi
234 Weather Service Dr.
Flowood, MS 39232
601-936-2189
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