Tropical Storm in Louisiana, August 30, 2017

Name: Tropical Storm in Louisiana, August 30, 2017
Start: 2017-08-30T16:45
End: 2017-08-30T22:30
Location: Louisiana

August 30, 2017 · NWS SHV · 3 events in 3 counties and zones

Where it happened

Every event with a place to put it; 3 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

Tornadoes
Tropical storms and surge
Floods
Wind
Hail
Winter weather
Heat and drought
Cold
Fire, smoke and dust
Marine and coastal
Other

Open the live radar over this ground

The toll

Deaths: 0
Injuries: 0
Property damage: None recorded
Crop damage: None recorded
Events: 3

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS SHV wrote it up.

Tropical Storm Harvey emerged back over the Northwest Gulf of Mexico during the morning hours of August 28th, and intensified slightly as drifted northwest just off the Southeast Texas coast, eventually making a 3rd landfall near Cameron, Louisiana during the early morning hours of August 30th. After Harvey made landfall in far Southwest Louisiana during the early morning hours of August 30th, the more concentrated bands of heavy rain and the stronger squalls were concentrated on the northwest side of the center, which slowly drifted northeast into Central Louisiana during the afternoon and evening hours. Thus, in addition to significant flash flooding across Westcentral Louisiana, reports of downed trees and power lines were received over portions of Northcentral Louisiana, as some of the stronger squalls produced wind gusts to 35-40 mph with locally higher gusts atop already saturated grounds.

In Sabine Parish, trees were blown down on power lines on LA 1215 west of LA 191 about 6 miles south southwest of Zwolle. Another tree was also blown down on Highway 120 about 4 miles north of Zwolle, where water was also high in this area. In Natchitoches Parish, a large tree was blown down across Highway 9 near Creston Baptist Church, blocking the road. In Union Parish, a large limb fell through the roof of a home about 3 miles northwest of Farmerville, causing structural damage and water to come into the home.

What forecasters said that day

The local office's own words before the first event, 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 the first event at Aug 30, 3:09 PM CST, 1 hour 36 minutes earlier.

Area forecast discussion, Aug 30, 3:09 PM CST, 1 hour 36 minutes before

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Hazardous weather outlook, Aug 30, 11:16 AM CST, 5 hours 29 minutes before

Hazardous Weather Outlook
National Weather Service Shreveport LA
1216 PM CDT Wed Aug 30 2017

LAZ001>006-010>014-017>022-TXZ151>153-165>167-311730-
Caddo-Bossier-Webster-Claiborne-Lincoln-Union-De Soto-Red River-
Bienville-Jackson-Ouachita-Sabine-Natchitoches-Winn-Grant-
Caldwell-La Salle-Panola-Nacogdoches-Shelby-Angelina-
San Augustine-
1216 PM CDT Wed Aug 30 2017

This Hazardous Weather Outlook is for portions of north central
Louisiana, northwest Louisiana, east Texas and northeast Texas.

.DAY ONE...This Afternoon and Tonight...

Areas of moderate to intermittently heavy rainfall will increase
northward across the area today as Tropical Storm Harvey shifts
northeast into central Louisiana this afternoon. With average
rainfall amounts expected of 3 to 6 inches through the overnight
with isolated higher amounts near 8 inches south of Interstate 20,
expect any major flash flooding to be confined across deep east
Texas and adjacent areas of northwest Louisiana. Expecting winds
to gust to 20 to 30 mph at times as well this afternoon and this
evening. Also, there remains a threat of brief and very isolated
tornadoes associated with the spiral bands of heavier rain with
Tropical Storm Harvey.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday...

Ongoing rainfall is expected Thursday morning. However, this
rainfall will taper off later in the day, with mostly dry weather
for the Labor Day Holiday Weekend, although areas of high water
remain possible at a few locations through at least Thursday.
Scattered showers and thunderstorms will return to the area by
early next week.

.SPOTTER INFORMATION STATEMENT...

Activation of emergency management personnel...amateur radio
operators and storm spotters may possibly be required at a few
locations this afternoon and evening.

ARZ050-051-059>061-070>073-OKZ077-TXZ096-097-108>112-124>126-
136>138-149-150-311730-
Sevier-Howard-Little River-Hempstead-Nevada-Miller-Lafayette-
Columbia-Union-McCurtain-Red River-Bowie-Franklin-Titus-Camp-
Morris-Cass-Wood-Upshur-Marion-Smith-Gregg-Harrison-Cherokee-Rusk-
1216 PM CDT Wed Aug 30 2017

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

.DAY ONE...This Afternoon and Tonight...

Areas of mainly light to occasionally moderate and heavy rainfall
can be expected today and tonight. However, flooding and strong
storms do not appear to be a significant threat at this time for
this area, associated with Tropical Storm Harvey moving inland.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday...

Rainfall will taper off during the day Thursday. Mostly dry
weather expected for the Labor Day Holiday Weekend with scattered
showers and thunderstorms returning to the area by early next
week.

.SPOTTER INFORMATION STATEMENT...

Activation of emergency management personnel...amateur radio
operators and storm spotters is not anticipated through tonight.

19

In the hours before

Local storm report, Aug 30, 3:02 PM CST, 1 hour 43 minutes before

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Local storm report, Aug 30, 3:27 PM CST, 1 hour 18 minutes before

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Local storm report, Aug 30, 3:28 PM CST, 1 hour 17 minutes before

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Local storm report, Aug 30, 3:39 PM CST, 1 hour 6 minutes before

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Local storm report, Aug 30, 3:44 PM CST, 1 hour 1 minute before

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Local storm report, Aug 30, 4:31 PM CST, 14 minutes before

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The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

3 tropical storm. Local standard time, as filed.

Tropical Storm, Sabine

When: August 30, 4:45 PM CST to 10:30 PM CST
Where: Sabine forecast zone
Reported by: Law Enforcement
Coordinates: 31.564, -93.555 (the zone’s center; the record gives no point)

Tropical Storm, Natchitoches

When: August 30, 4:45 PM CST to 10:30 PM CST
Where: Natchitoches forecast zone
Reported by: Law Enforcement
Coordinates: 31.724, -93.096 (the zone’s center; the record gives no point)

Tropical Storm, Union

When: August 30, 4:45 PM CST to 10:30 PM CST
Where: Union forecast zone
Reported by: Law Enforcement
Coordinates: 32.832, -92.375 (the zone’s center; the record gives no point)

What these are

Tropical Storm: A tropical cyclone with sustained winds of 34 to 63 knots (39 to 73 mph).

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

Every storm in Louisiana in 2017 Every state in 2017 This day in weather history Warnings in Louisiana, August 2017 The 2017 hurricane season

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-30. Each event’s entry at NCEI: 714375, 714376, 714377.