Alert archive / Louisiana / River Flood Warnings in 2015

River Flood Warning 53, NWS Shreveport, LA

March 12, 2015Bossier Parish, Louisiana

NWS Shreveport, LA issued this river flood warning at Mar 12, 2015, 1:52 PM CDT for Bossier Parish, Louisiana. It was in force for 7 days.

The area

The counties it named.

The facts

Issued: Mar 12, 2015, 1:52 PM CDT (18:52 UTC)
Expired: Mar 19, 2015, 1:52 PM CDT
In force: 7 days
Issued by: NWS Shreveport, LA
Area: Storm-based polygon
Flood severity: Minor

County Bossier Parish, LA

The radar

The Shreveport radar (KSHV), 34 km from the middle of the area, began a volume at 18:53 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.

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 Mar 12, 10:09 AM CDT, 3 hours 43 minutes earlier.

Area forecast discussion, Mar 12, 10:09 AM CDT, 3 hours 43 minutes before

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Hazardous weather outlook, Mar 12, 12:01 PM CDT, 1 hour 51 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SHREVEPORT LA
1201 PM CDT THU MAR 12 2015

ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-TXZ097-112-
126-138-149>153-165>167-131715-
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-BOWIE-CASS-MARION-HARRISON-CHEROKEE-RUSK-
PANOLA-NACOGDOCHES-SHELBY-ANGELINA-SAN AUGUSTINE-
1201 PM CDT THU MAR 12 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL
ARKANSAS...SOUTHWEST ARKANSAS...NORTH CENTRAL LOUISIANA...
NORTHWEST LOUISIANA...TEXAS AND NORTHEAST TEXAS.

.DAY ONE...THIS AFTERNOON AND TONIGHT
...FLASH FLOOD WATCH IN EFFECT THROUGH 7 AM FRIDAY MORNING...
WIDESPREAD SHOWERS AND SCATTERED THUNDERSTORMS WILL PRODUCE
LOCALLY HEAVY RAINFALL AMOUNTS OF TWO TO FOUR INCHES THROUGH
TONIGHT AS A SURFACE LOW AND WARM FRONT ADVANCE NORTH FROM THE
GULF ACROSS OUR REGION...ALONG WITH AN UPPER LEVEL TROUGH SHIFTING
NORTH ACROSS THE REGION. VERY HEAVY RAINFALL OF TWO TO FOUR INCHES
HAS ALREADY FALLEN ACROSS PORTIONS OF THE AREA SINCE THE PREDAWN
HOURS THIS MORNING. RAINFALL MAY PRODUCE SOME MINOR FLOODING OF
LOW LYING AND POOR DRAINAGE AREAS WHERE PREVIOUS RAINS HAVE
ALREADY SATURATED SOILS...WITH MORE SIGNIFICANT FLOODING POSSIBLE
WHERE PROLONGED HEAVY RAINFALL OCCURS...ESPECIALLY IN URBAN AREAS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY
RAIN WILL TAPER OFF FRIDAY...WITH SCATTERED SHOWERS RETURNING
SATURDAY AS A WEAK COLD FRONT MOVES BACK ACROSS THE REGION. SHOWERS
AND THUNDERSTORMS WILL RETURN LATE TUESDAY INTO WEDNESDAY NEXT
WEEK. HOWEVER...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...
DUE TO LOCALIZED NATURE OF ANY POSSIBLE FLOODING...ACTIVATION OF
EMERGENCY MANAGEMENT PERSONNEL...AMATEUR RADIO OPERATORS...AND
STORM SPOTTERS IS NOT ANTICIPATED AT THIS TIME...THROUGH TONIGHT.

OKZ077-TXZ096-108>111-124-125-136-137-131715-
MCCURTAIN-RED RIVER-FRANKLIN-TITUS-CAMP-MORRIS-WOOD-UPSHUR-SMITH-
GREGG-
1201 PM CDT THU MAR 12 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST
OKLAHOMA AND NORTHEAST TEXAS.

.DAY ONE...THIS AFTERNOON AND TONIGHT
...FLASH FLOOD WATCH IN EFFECT THROUGH 7 AM FRIDAY MORNING
WIDESPREAD SHOWERS AND ISOLATED THUNDERSTORMS WILL PRODUCE LOCALLY
HEAVY RAINFALL AMOUNTS OF TWO TO FOUR INCHES THROUGH TONIGHT AS A
SURFACE LOW AND WARM FRONT ADVANCE NORTH FROM THE GULF ACROSS OUR
REGION...ALONG WITH AN UPPER LEVEL TROUGH SHIFTING NORTH ACROSS
THE REGION. RAINFALL MAY PRODUCE SOME MINOR FLOODING OF LOW LYING
AND POOR DRAINAGE AREAS WHERE PREVIOUS RAINS HAVE ALREADY
SATURATED SOILS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY
RAIN MAY BEGIN TO TAPER OFF FRIDAY...HOWEVER...ISOLATED TO
POSSIBLY SCATTERED SHOWERS RETURNING TO THE AREA SATURDAY AS A
WEAK COLD FRONT APPROACHES THE REGION. SHOWERS AND THUNDERSTORMS
WILL RETURN LATE TUESDAY INTO WEDNESDAY NEXT WEEK. HOWEVER...NO
HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...
ACTIVATION OF EMERGENCY MANAGEMENT PERSONNEL...AMATEUR RADIO
OPERATORS...AND STORM SPOTTERS REMAINS A POSSIBILITY IN CERTAIN
FLOOD PRONE AREAS...WHERE CONTINUED HEAVY RAINFALL BECOMES
CONCENTRATED...THROUGH TONIGHT.

VII

In the hours before

Local storm report, Mar 12, 7:54 AM CDT, 5 hours 58 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
754 AM CDT THU MAR 12 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0650 AM     FLASH FLOOD      8 NNW CONVERSE          31.89N  93.73W
03/12/2015                   DE SOTO            LA   LAW ENFORCEMENT

            DE SOTO PARISH SHERIFF REPORTS THAT THE INTERSECTION OF
            W.P.A ROAD AND WALKER ROAD WAS COMPLETELY UNDER WATER.

&&

EVENT NUMBER SHV1500250

20

Local storm report, Mar 12, 8:52 AM CDT, 5 hours before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
852 AM CDT THU MAR 12 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0820 AM     FLASH FLOOD      SHREVEPORT              32.47N  93.80W
03/12/2015                   CADDO              LA   BROADCAST MEDIA

            WIDESPREAD REPORTS OF STREET FLOODING THROUGHOUT THE
            CITY VIA SOCIAL MEDIA.

&&

EVENT NUMBER SHV1500252

20

Local storm report, Mar 12, 9:30 AM CDT, 4 hours 22 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
930 AM CDT THU MAR 12 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0820 AM     FLASH FLOOD      BOSSIER CITY            32.52N  93.66W
03/12/2015                   BOSSIER            LA   BROADCAST MEDIA

            WIDESPREAD REPORTS OF STREET FLOODING THROUGHTOUT THE
            CITY VIA SOCIAL MEDIA.

&&

EVENT NUMBER SHV1500252

20

Local storm report, Mar 12, 9:37 AM CDT, 4 hours 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
937 AM CDT THU MAR 12 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0920 AM     FLASH FLOOD      SHREVEPORT              32.47N  93.80W
03/12/2015                   CADDO              LA   BROADCAST MEDIA

            BROADCAST MEDIA REPORTS 20 STALLED VEHICLES ON YOUREE
            DRIVE FROM THE INTERSECTIONS OF SOUTHFIELD ROAD TO
            STONER AVENUE.

&&

EVENT NUMBER SHV1500254

20

Local storm report, Mar 12, 9:39 AM CDT, 4 hours 13 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
939 AM CDT THU MAR 12 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0920 AM     FLASH FLOOD      SHREVEPORT              32.47N  93.80W
03/12/2015                   CADDO              LA   BROADCAST MEDIA

            BROADCAST MEDIA REPORTS 20 STALLED VEHICLES ON YOUREE
            DRIVE FROM THE INTERSECTIONS OF SOUTHFIELD ROAD TO
            STONER AVENUE.

&&

EVENT NUMBER SHV1500255

20

Local storm report, Mar 12, 1:10 PM CDT, 42 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
110 PM CDT THU MAR 12 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1000 AM     FLASH FLOOD      MAGNOLIA                33.27N  93.24W
03/12/2015                   COLUMBIA           AR   LAW ENFORCEMENT

            SUE STREET WAS CLOSED DUE TO HIGH WATER.

&&

EVENT NUMBER SHV1500256

20

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 12, 8:52 AM CDT	Flash Flood Warning	SHV	Cass, Harrison, Marion, Panola	4 hr
Mar 12, 9:58 AM CDT	Flash Flood Watch	SHV	Angelina, Bowie, Camp, Cass, Cherokee, Franklin and 15 more	31 hr
Mar 12, 5:57 AM CDT	Areal Flood Advisory	SHV	De Soto, Sabine	63 min
Mar 12, 6:40 AM CDT	Flash Flood Warning	SHV	De Soto	95 min
Mar 12, 7:12 AM CDT	Areal Flood Advisory	SHV	Bossier, Caddo, De Soto	2 hr
Mar 12, 2:29 PM CDT	Flash Flood Warning	SHV	Bossier, Caddo, De Soto	4 hr

Nearby

River Flood Warnings in Louisiana, 2015 Every river flood warning in 2015

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.