Soil Moisture

Plant Available Water

1-day Average 4-inch Plant Available Water learn more

1-day Average 4-inch Plant Available Water

The 1-day Average 4-inch Plant Available Water map is based on the 24-hour-averaged plant available water for the top 4 inches (10 cm) of soil under the existing vegetation at each Mesonet site for the previous day. Plant available water under other vegetation types may differ. Plant available water is the amount of water in the soil that is potentially available for plant uptake. Technically, it is calculated as the amount of soil water at matric potentials above -1500 kPa. The maximum possible plant available water varies between sites due to soil differences. Most plants experience water stress when less than 50% of the maximum plant available water remains in the active root zone. This map is updated once each day between 7 and 8 AM.
1-day Average 16-inch Plant Available Water learn more

1-day Average 16-inch Plant Available Water

The 1-day Average 16-inch Plant Available Water map is based on the 24-hour-averaged plant available water for the top 16 inches (40 cm) of soil under the existing vegetation at each Mesonet site for the previous day. Plant available water under other vegetation types may differ. Plant available water is the amount of water in the soil that is potentially available for plant uptake. Technically, it is calculated as the amount of soil water at matric potentials above -1500 kPa. The maximum possible plant available water varies between sites due to soil differences. Most plants experience water stress when less than 50% of the maximum plant available water remains in the active root zone. This map is updated once each day between 7 and 8 AM.
1-day Average 32-inch Plant Available Water learn more

1-day Average 32-inch Plant Available Water

The 1-day Average 32-inch Plant Available Water map is based on the 24-hour-averaged plant available water for the top 32 inches (80 cm) of soil under the existing vegetation at each Mesonet site for the previous day. Plant available water under other vegetation types may differ. Plant available water is the amount of water in the soil that is potentially available for plant uptake. Technically, it is calculated as the amount of soil water at matric potentials above -1500 kPa. The maximum possible plant available water varies between sites due to soil differences. Most plants experience water stress when less than 50% of the maximum plant available water remains in the active root zone. This map is updated once each day between 7 and 8 AM.
1-day Average 4-inch Percent Plant Available Water learn more

1-day Average 4-inch Percent Plant Available Water

The 1-day Average 4-inch Percent Plant Available Water map is derived by dividing the current daily 4-inch Plant Available Water value by the theoretical maximum 4-inch plant available water amount for each individual Mesonet site. The percent reported is for the soil column from the soil surface down to the 4-inch depth. Percents may go above 100% or below 0% due to variation between individual sensors and sensor locations. The theoretical maximum plant available water was calculated from depth specific soil analysis for each Mesonet site. Plant Available Water values are 24-hour averages, updated each day after midnight. Most plants experience water stress when less than 50% of the maximum plant available water remains in the active root zone.
1-day Average 16-inch Percent Plant Available Water learn more

1-day Average 16-inch Percent Plant Available Water

The 1-day Average 16-inch Percent Plant Available Water map is derived by dividing the current daily 16-inch Plant Available Water value by the theoretical maximum 16-inch plant available water amount for each individual Mesonet site. The percent reported is for the soil column from the soil surface down to the 16-inch depth. Percents may go above 100% or below 0% due to variation between individual sensors and sensor locations. The theoretical maximum plant available water was calculated from depth specific soil analysis for each Mesonet site. Plant Available Water values are 24-hour averages, updated each day after midnight. Most plants experience water stress when less than 50% of the maximum plant available water remains in the active root zone.
1-day Average 32-inch Percent Plant Available Water learn more

1-day Average 32-inch Percent Plant Available Water

The 1-day Average 32-inch Percent Plant Available Water map is derived by dividing the current daily 32-inch Plant Available Water value by the theoretical maximum 32-inch plant available water amount for each individual Mesonet site. The percent reported is for the soil column from the soil surface down to the 32-inch depth. Percents may go above 100% or below 0% due to variation between individual sensors and sensor locations. The theoretical maximum plant available water was calculated from depth specific soil analysis for each Mesonet site. Plant Available Water values are 24-hour averages, updated each day after midnight. Most plants experience water stress when less than 50% of the maximum plant available water remains in the active root zone.

Fractional Water Index under vegetative cover

1-day Average 2-inch Fractional Water Index learn more

1-day Average 2-inch Fractional Water Index

The 1-day Average 2-inch Fractional Water Index map displays the 24-hour-averaged soil moisture at 2 inches (5 cm) under native sod for the previous day. Fractional water index ranges from 0 (completely dry) to 1.0 (completely saturated). Soil moisture can not be measured if the soils are frozen. This may cause our maps to have large areas of missing data during the winter months. This map is updated once each day between 7 and 8 AM.
1-day Average 4-inch Fractional Water Index learn more

1-day Average 4-inch Fractional Water Index

The 1-day Average 4-inch Fractional Water Index map displays the 24-hour-averaged soil moisture at 4 inches (10 cm) under native sod for the previous day. Fractional water index ranges from 0 (completely dry) to 1.0 (completely saturated). Soil moisture can not be measured if the soils are frozen. This may cause our maps to have large areas of missing data during the winter months. This map is updated once each day between 7 and 8 AM.
1-day Average 10-inch Fractional Water Index learn more

1-day Average 10-inch Fractional Water Index

The 1-day Average 10-inch Fractional Water Index map displays the 24-hour-averaged soil moisture at 10 inches (25 cm) under native sod for the previous day. Fractional water index ranges from 0 (completely dry) to 1.0 (completely saturated). Soil moisture can not be measured if the soils are frozen. This may cause our maps to have large areas of missing data during the winter months. This map is updated once each day between 7 and 8 AM.
1-day Average 24-inch Fractional Water Index learn more

1-day Average 24-inch Fractional Water Index

The 1-day Average 24-inch Fractional Water Index map displays the 24-hour-averaged soil moisture at 24 inches (60 cm) under native sod for the previous day. Fractional water index ranges from 0 (completely dry) to 1.0 (completely saturated). This map is updated once each day between 7 and 8 AM.
7-day 10-inch Fractional Water Index Change learn more

7-day 10-inch Fractional Water Index Change

The 7-day 10-inch Fractional Water Index Change map displays the change in soil moisture at 10 inches (25 cm) over the past week Positive numbers indicate an increase in soil moisture, while negative numbers indicate a decrease in soil moisture. This map is updated once each day between 7 and 8 AM.
Soil Moisture Graph learn more

Soil Moisture Graph

The Soil Moisture Graph plots the Fractional Water Index for a station through time. The user can pick either a 7, 15, 30, 60, or 90 day period. Fractional Water Index varies from 0 (wilting point) to 1 (saturation).

Fractional Water Index under bare soil

1-day Average 4-inch Bare Soil Fractional Water Index learn more

1-day Average 4-inch Bare Soil Fractional Water Index

The 1-day Average 4-inch Bare Soil Fractional Water Index map displays the 24-hour-averaged soil moisture at 4 inches (10 cm) under bare soil for the previous day. Fractional water index ranges from 0 (completely dry) to 1.0 (completely saturated). Soil moisture can not be measured if the soils are frozen. This may cause our maps to have large areas of missing data during the winter months. This map is updated once each day between 7 and 8 AM.