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1/9/2024
WT Staff
HAPPENING NOW
NWS Wind advisory in effect
Bogue Falaya, Tchefuncte River flooding at Covington
Water news for Tuesday, January 9, 2024 - last updated 320 pm CST
Flooding and Streamflow Situation from USGS real time streamflow monitoring stations around the eight watersheds of the state
Tchefuncte River breached flood stage near Covington at 5 am, as of afternoon still running above flood stage.
Region 7 Bogue Falaya began flooding at Boston Street in Covington, running over 6 ft at 1230 am this morning. As of the last measurement provided, 530 am, Bogue Falaya was running 8.83 ft deep and rising rapidly. Upstream near Camp Covington in St Tammany Parish, Bogue Falaya reached 45 ft deep and began flooding at 315 am, running 47.62 ft deep by 6am. As of 2 pm CST, Bogue Falaya is running 46.95 ft where flood stage is 45 ft. In Covington, Boston St, Bogue Falaya is running 10.76 ft deep where flood starts at 6 ft.this update, the The water level is rising rapidly.
By 7 am, a number of stations are reporting above seasonal normal flows with a 96th percentile flow recorded on Bayou Lafourche at Thibodaux, flood stage is not given for this location. WTLA continues to monitor for flooding, SMS flood alerts are sent to subscribers and posted to our map here.
As of this update, there are no extreme low flows reported anywhere in LA.
See the black tags for flood, red-brown tags on the map for the low flow details.
National Weather Service Hazardous weather conditions statement updated 444 am CST Jan 9
Impacting Pointe Coupee-West Feliciana-East Feliciana-St. Helena-Washington-Iberville-West Baton Rouge-East Baton Rouge-Assumption-St. James-St. John The Baptist-Upper Lafourche-St. Charles-
Upper St. Bernard-Upper Terrebonne-Lower Terrebonne-Lower Lafourche-Coastal Jefferson Parish-Lower Plaquemines-Lower St. Bernard-Northern Tangipahoa-Southeast St. Tammany-Western Orleans-Eastern Orleans-Northern St. Tammany-
Southwestern St. Tammany-Central Tangipahoa-Lower Tangipahoa-Northern Livingston-Southern Livingston-Western Ascension-Eastern Ascension-Upper Jefferson-Lower Jefferson-Upper Plaquemines-Central Plaquemines Parishes
WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING...West winds 25 to 35 mph with gusts up to 45 mph in portions of southeast Louisiana and southern Mississippi. IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.
PRECAUTIONARY/PREPAREDNESS ACTIONS...Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects.
Boil Water Advisories:
Alexandria issued a precautionary boil water advisory for customers on Detroit Street after repairs to a 6-inch water main yesterday.
City of Ruston BWA issued yesterday due to possible microbiological contamination. The precautionary order will remain in effect until lab tests determine the safety.
Oberlin has issued a BWA due to a loss of water pressure from repairs being made to water lines yesterday.
Refer to yellow tags on the map for more BWAs in effect in the state of Louisiana. Also see the latest EPA Safe Drinking Water Act list of Serious Violators under the SDWA button to the right of the map.
Drought Map from USGS 7-day average streamflows compared to historic averages
Drought continues to release northwest LA into Tuesday as we see Region 4's west deSoto and most of Sabine Parish back to normal, having no drought rating. Extreme drought claims just one territory by Tuesday, watershed Region 4 following the Calcasieu River through northeast Vernon, southwest Rapides, central Allen, central Beauregard, east Calcasieu and west Jefferson Davis Parishes.
Severe drought continues to claim territory in Region 3 including central Morehouse, East Carrol, Madison and Tensas Parishes. Severe drought sticks on two river channels in Region 7, Tangipahoa and Pearl River, covering east Washington, east St Tammany and most of Tangipahoa. Moderate drought occurs through Morehouse, Richland and Franklin Parishes in Region 3 west of the Tensas River, the lower portion of Region 4 beginning at south central Sabine Parish through Cameron Parish to the Gulf Coast. Region 5 is rated mostly moderate drought, excluding the area of Evangeline and Acadia Parishes, rated below normal. Region 7 is rated below normal on the west side up to St Helena and Livingston Parishes, with the west side of Tangipahoa Parish being unrated as of Tuesday. West Washington and west St Tammany Parishes are rated below normal.
Watershed regions 6 and 8 are clear of the drought map Tuesday.
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 8 is mostly cloud obscured, taken at a low wind speed 2.9 mph. No HABs are detected in the very limited view of Lake Pontchartrain. All other water bodies are completely cloud obscured. The previous image was captured January 7 at a slightly higher wind speed, over 6 mph, showing extensive HAB activity in Lake Pontchartrain. Lake Maurepas appeared in the Jan 7 image HAB free. Lake Verret, Lake Palourde, Lac des Allemands and Bayou Fortier were completely cloud obscured Jan 7 as they are also obscured Jan 8 image. On Jan 7, Lake Cataouache was cloud obscured, Lake Salvador is cloud blocked in the north, clear in the south. Lake Lery presented Jan 7 with lakewide bloom 500 thousand cells per 100 ml, Lake Lery is totally cloud obscured in the image we are looking at today. Check back daily for an interpretation of the latest satellite image of the southeast water bodies.
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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