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1/22/2024
WT Staff
HAPPENING NOW
NWS: Rainfall warning for north LA
Flooding possible
Water news for Monday, January 22, 2024 - last updated 933 am CST
National Weather Service Hazardous Weather Outlook issued 456 am CST Jan 22
Impacting Lafayette-Columbia-Union-Caddo-Bossier-Webster-Claiborne-Lincoln-De Soto-Red River-Bienville-Jackson-Ouachita-Sabine-Natchitoches-Winn-Grant-Caldwell-La Salle-Franklin
DAY ONE...Today and tonight. Rainfall will continue increasing from the west, spreading areawide through today.
Periods of rain with a few embedded thunderstorms are expected to continue across the region through at least midweek, before diminishing by Thursday. Given the cold ground temperatures and wet soils in place, minor flooding will be possible.
Drinking Water Matters
Water facilities statewide are impacted by low water pressure resulting from connections left open to drip to avoid bursting pipes from the hard freeze. Drinking water impacted have posted boil water advisories, more to follow.
See yellow tags on the map for BWAs.
Streamflow Situation from USGS real time streamflow monitoring stations around the eight watersheds of the state
Below normal flows statewide over the weekend have led to the seven day average falling severely below seasonal normal.
Monday morning there are eight monitoring stations recording extreme low levels, updates in progress, more to follow.
Drought Map from USGS 7-day average streamflows compared to historic averages
Extreme drought ratings return to Louisiana Monday. Tensas River channel through watershed Region 3 and the Tangipahoa River channel including Tangipahoa Parish in Region 7 have taken on the most extreme drought rating again after weeks of normal conditions.
Regions 4 and 5 escalated to severe drought Friday, excepting Acadia and Evangeline Parishes in Region 5 trailing at moderate drought.
In the northwest, Regions 1, 2 and 3 retain areas of moderate hydrologic drought and below normal area as initially seen on Saturday. Caddo Parish in Region 1, Grant and LaSalle Parishes in Region 2 remain moderate drought rated as of this update.
Watershed regions 6 and 8 continue to avoid a drought rating.
See the Flood button to the right of the map for more information on streamflows. Red-brown tags on the map refer to extreme low flows.
Note WaterToday reports day-to-day changes recorded by USGS streamflow monitors on rivers and tributaries located in Louisiana, along with monitors upstream in the Mississippi River basin: Ohio, Georgia and southwest New York state. USGS creates a drought map from 7-day average streamflow readings, by comparing the average with the historic weekly normal flow value for each location. The drought ratings are below normal, moderate hydrologic drought, severe drought and extreme drought.
USGS Provisional Data Statement
Data are provisional and subject to revision until they have been thoroughly reviewed and received final approval. Current condition data relayed by satellite or other telemetry are automatically screened to not display improbable values until they can be verified.
Provisional data may be inaccurate due to instrument malfunctions or physical changes at the measurement site. Subsequent review based on field inspections and measurements may result in significant revisions to the data.
Data users are cautioned to consider carefully the provisional nature of the information before using it for decisions that concern personal or public safety or the conduct of business that involves substantial monetary or operational consequences. Information concerning the accuracy and appropriate uses of these data or concerning other hydrologic data may be obtained from the USGS.
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