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1/18/2024
WT Staff
HAPPENING NOW
NWS Hard Freeze Warning
Power outages, burst pipes and BWAs
Water news for Thursday, January 18, 2024 - last updated 1036 am CST
National Weather Service Urgent Weather Message issued 325 am CST Jan 18
Impacting Pointe Coupee-West Feliciana-East Feliciana-St. Helena-Washington-
Iberville-West Baton Rouge-East Baton Rouge-Northern Tangipahoa-Southeast St. Tammany-Northern St. Tammany-
Southwestern St. Tammany-Central Tangipahoa-Lower Tangipahoa-Northern Livingston-Southern Livingston-Western Ascension-Eastern Ascension
HARD FREEZE WATCH IN EFFECT FROM LATE FRIDAY NIGHT THROUGH SATURDAY MORNING...Sub-freezing temperatures as low as 21 possible in portions of southeast Louisiana and southern Mississippi. Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.
Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above-ground pipes to protect them from freezing.
Drinking Water Matters
Dozens of water facilities have issued boil advisories following the hard freeze and loss of water pressure caused by taps left open to avoid freezing. Another hard freeze is expected tomorrow.
See yellow tags on the map for BWAs
Streamflow Situation from USGS real time streamflow monitoring stations around the eight watersheds of the state
Much below normal flows creep from west Louisiana into the southeast Thursday with six stations recording extreme low flows. Tangipahoa River is back on the low flow radar showing an extreme low at Robert.
Drought Map from USGS 7-day average streamflows compared to historic averages
Severe drought hangs on the Sabine River channel in Region 4 Thursday with the remaining area of Regions 4 and 5 at moderate hydrologic drought. Region 5's Acadia and Evangeline Parishes are rated below normal this morning after a lengthy period away from the drought map.
In the northwest, Region 1's west Bossier, south Caddo, all of deSoto and Sabine Parishes and west Natchitoches are showing up rated below normal Thursday. Saline Bayou channel through Bienville, east Natchitoches and Winn Parishes is rated below normal as yesterday. Region 2 Grant and LaSalle Parishes remain at moderate drought. Region 3 appears back on the drought map with a narrow strip along either side of the Tensas River below normal.
Watershed regions 6, 7 and 8 remain clear of the drought map again, with extreme low flow readings on Tangipahoa River, expect to see Region 7 with drought rated area in the coming days.
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.
HABs Report from National Centers for Coastal Ocean Science (NCCOS) satellite monitoring program
NCCOS image captured Jan 17 is a clear view of southeast LA, taken at wind speed 10.4 mph. No HAB activity is evident on Lake Pontchartrain, Irish Bayou, Lake Pontchartrain, Lake Maurepas, Lake Verret, Lake Palourde, Catouache or Salvador. Lake Lery and Black Bay inland water bodies appear with lakewide HABs at a lower concentration than previous pictures 100 thousand cells per 100 ml.
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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