Alert archive / Louisiana / River Flood Warnings in 2019

River Flood Warning 64, NWS Shreveport, LA

April 11, 2019Bossier Parish, Webster Parish, Louisiana

NWS Shreveport, LA issued this river flood warning at Apr 11, 2019, 10:16 AM CDT for Bossier Parish, Webster Parish, Louisiana. It took effect at Apr 12, 2019, 5:00 PM CDT. It was in force for 79 days.

The area

The counties it named.

The facts

Issued
Apr 11, 2019, 10:16 AM CDT (15:16 UTC)
In effect from
Apr 12, 2019, 5:00 PM CDT
Expired
Jun 30, 2019, 12:41 PM CDT
In force
79 days
Issued by
NWS Shreveport, LA
Area
Storm-based polygon
Flood severity
Minor

Counties Bossier Parish, LA, Webster Parish, LA

The radar

The Shreveport radar (KSHV), 44 km from the middle of the area, began a volume at 15:19 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The river

Written for the forecast point Bayou Bodcau at Bayou Bodcau Lake (LBBL1).

Action stage
171.5 ft
Minor stage
172 ft
Moderate stage
192 ft
Major stage
198 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 07349650, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What forecasters said that day

The local office's own words before this river flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Shreveport, LA wrote its last area forecast discussion before this river flood warning went out at Apr 11, 9:59 AM CDT, 17 minutes earlier.

Area forecast discussion, Apr 11, 9:59 AM CDT, 17 minutes before
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Hazardous weather outlook, Apr 11, 6:45 AM CDT, 3 hours 31 minutes before
Hazardous Weather Outlook
National Weather Service Shreveport LA
645 AM CDT Thu Apr 11 2019

ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077-
TXZ096-097-108>112-124>126-136>138-149>153-165>167-121145-
Sevier-Howard-Little River-Hempstead-Nevada-Miller-Lafayette-
Columbia-Union-Caddo-Bossier-Webster-Claiborne-Lincoln-De Soto-
Red River-Bienville-Jackson-Ouachita-Sabine-Natchitoches-Winn-
Grant-Caldwell-La Salle-McCurtain-Bowie-Franklin-Titus-Camp-
Morris-Cass-Wood-Upshur-Marion-Smith-Gregg-Harrison-Cherokee-Rusk-
Panola-Nacogdoches-Shelby-Angelina-San Augustine-
645 AM CDT Thu Apr 11 2019

This Hazardous Weather Outlook is for portions of south central
Arkansas, southwest Arkansas, north central Louisiana, northwest
Louisiana, southeast Oklahoma, east Texas and northeast Texas.

.DAY ONE...Today and Tonight...

Strong southerly winds will create hazardous boating conditions
across much of the region through this afternoon ahead of a cold
front. Therefore, a Lake Wind Advisory is in effect for nearly all
of the region today. As the cold front shifts across the area, a
few thunderstorms may develop across parts of deep east Texas and
eastward into much of north Louisiana and south Arkansas. However,
no organized hazardous weather is expected.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday...

By Friday night through Saturday, the threat for thunderstorms
will expand to include all of the region as a strong upper level
storm system lifts northeastward across the southern Plains. The
resulting increase in shear and instability will lead to a higher
potential for strong to severe thunderstorms late Saturday morning
and especially during the hours of afternoon peak heating. Storms
may continue through early evening before gradually diminishing as
a cold front shifts across the region. All modes of severe weather
will be in play including a few strong tornadoes. In addition, an
isolated flash flooding threat will exist with as much as two to
four inches of rainfall possible through early Sunday morning.

The next chance of thunderstorms will return on Wednesday with the
threat of severe weather possible yet again as another very strong
upper level storm system shifts east from the Rockies across the
southern Plains.

.SPOTTER INFORMATION STATEMENT...

Activation of emergency managers, spotter networks, and amateur
radio operators will not be required through Friday morning.

19

The office that day

Everything else NWS Shreveport, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 11, 4:23 AM CDTLake Wind AdvisorySHVBowie, Camp, Cass, Cherokee, Franklin, Gregg and 10 more11 hr
Apr 11, 10:11 AM CDTRiver Flood WarningSHVCass, Marion37 days
Apr 11, 1:07 PM CDTLake Wind AdvisorySHVBowie, Camp, Cass, Cherokee, Franklin, Gregg and 10 more2 hr
Apr 11, 6:28 AM CDTRiver Flood WarningSHVBienville, Bossier, Red River, Webster21 days

Nearby

River Flood Warnings in Louisiana, 2019Every river flood warning in 2019

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.