|
CURRENT CONDITIONS
|
|
1.
|
Montana County Drought Status
map and county table.
|
|
2.
|
U.S. Drought Monitor map updated weekly includes text
summary.
|
|
3.
|
U.S. Drought Monitor Current Condition maps of
indices on one page.
|
|
4.
|
Current Year Water Data
|
|
5.
|
Montana Snow and Water maps 2001-2008
of Mountain Snow Water Equivalents, Monthly Stream Flow Prospects,
and Surface Water Supply
Index.
|
|
6.
|
U.S. Soil Moisture Monitoring
|
|
7.
|
Stream flow
in Montana
|
|
8.
|
Surface Water
in Montana
|
|
9.
|
Montana Bureau of Mines and Geology Ground Water-Information Center
|
|
10.
|
Montana Moisture Status
|
|
11.
|
Drought
Information-Billings, MT
area
|
|
12.
|
Drought
Information-Great Falls, MT
area
|
|
|
|
|
DROUGHT
STATISTICS/MEASUREMENTS
|
|
1.
|
Palmer Drought Severity Index (PDSI)
is a water balance index that considers water supply (precipitation), demand (evapotranspiration) and loss (runoff).
|
|
2.
|
Standardized Precipitation Index (SPI)
is a probability index that considers only precipitation.
|
|
3.
|
Crop Moisture Index (CMI) measures moisture supply in the short term across major crop-producing regions and is not intended to assess long-term droughts.
|
|
4.
|
Surface Water Supply Index
(SWSI)
maps produced by NRIS/NRCS.
|
|
6.
|
National Fire Danger Rating
(NFDRS)
for Dead Fuel Moisture maps that display ambient environmental conditions to determine fire potential.
|
|
7.
|
Keetch-Byram Drought Index (KBDI)
is a drought index for fire potential assessment representing the net effect of evapotranspiration and precipitation in producing cumulative moisture deficiency in deep duff and upper soil layers.
|
|
|
|
|
FUTURE FORECASTS
|
|
|
U.S. Drought Monitor Forecast maps for climate, drought, stream flow, Palmer Drought Severity Index, Soil Moisture, etc.
|
|
|
|
