Alert archive / Louisiana / Flash Flood Warnings in 2016

Flash Flood Warning 21, NWS Shreveport, LA

March 9, 20166 parishes in Louisiana

NWS Shreveport, LA issued this flash flood warning at Mar 9, 2016, 10:40 AM CST for 6 parishes in Louisiana. It was in force for 23 hr. 9 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Mar 9, 2016, 10:40 AM CST (16:40 UTC)
Expired: Mar 10, 2016, 9:45 AM CST
In force: 23 hr
Issued by: NWS Shreveport, LA
Area: Storm-based polygon
Flood severity: None

Counties Caldwell Parish, LA, Grant Parish, LA, Natchitoches Parish, LA, Red River Parish, LA, Sabine Parish, LA, Winn Parish, LA

The radar

The Ft Polk radar (KPOE), 66 km from the middle of the area, began a volume at 16:39 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 was reported inside it

Time	Report	Where	Remark
Mar 9, 2:12 PM CST	FLASH FLOOD	3 W Natchez, LA	HIGHWAY 478 EAST OF INTERSTATE 49 IN NATCHITOCHES PARISH IS CLOSED DUE TO HIGH WATER...
Mar 9, 3:30 PM CST	FLASH FLOOD	5 Sw Winnfield, LA	HWY 1228 AT HURRICANE BRANCH CLOSED DUE TO FLOODING
Mar 9, 3:30 PM CST	FLASH FLOOD	5 Wsw Dodson, LA	HWY 505 CLOSED
Mar 9, 3:45 PM CST	FLASH FLOOD	4 S Florien, LA	HIGHWAY 171 AT THE TORO BRIDGE SOUTH OF FLORIEN TO THE VERNON PARISH LINE IS CLOSED DUE TO FLOODING.
Mar 9, 3:45 PM CST	FLASH FLOOD	Colfax, LA	ROADS FLOODED BETWEEN COLFAX AND MONTGOMERY... PARISH ROADS... S HARGIS... NEW BRIDGE RD... AND VARTIGO RD.
Mar 9, 4:00 PM CST	FLASH FLOOD	Florien, LA	NUMEROUS ROADS FLOODED AND CLOSED IN AND NEAR FLORIEN.
Mar 9, 4:15 PM CST	HEAVY RAIN 3.24	Natchitoches, LA	HEAVY RAIN 3-3.24 IN 5 HOURS... STORM TOTAL 8.50 INCHES AS OF 402 PM... WIDESPREAD FLOODING THROUGH TOWN
Mar 9, 8:54 PM CST	FLASH FLOOD	7 E Winnfield, LA	WATER IN HOME IN WINN PARISH...AND COVERING HIGHWAY 124...
Mar 9, 9:00 PM CST	FLASH FLOOD	Fisher, LA	TWO HIGH WATER RESCUES WERE NEEDED NEAR THE FISHER COMMUNITY AND ONE NEAR TOLEDO BEND LAKE. NUMEROUS HOMES WERE FLOODED.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 4.7 hours before the alert went out and 183 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1619 J/kg
Mixed-layer CIN: -35 J/kg
Mixed-layer LCL: 458 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 320 m²/s²
0-3 km storm-relative helicity: 415 m²/s²
Significant tornado parameter: 3.6
Supercell composite: 21.6

Open this sounding in Storm Lab

The text

As transmitted.

728 
WGUS54 KSHV 091640
FFWSHV
LAC021-043-069-081-085-127-092145-
/O.NEW.KSHV.FF.W.0021.160309T1640Z-160309T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
1040 AM CST WED MAR 9 2016

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WESTERN CALDWELL PARISH IN NORTH CENTRAL LOUISIANA...
  NATCHITOCHES PARISH IN NORTHWESTERN LOUISIANA...
  WINN PARISH IN NORTH CENTRAL LOUISIANA...
  SOUTHEASTERN RED RIVER PARISH IN NORTHWESTERN LOUISIANA...
  CENTRAL GRANT PARISH IN NORTH CENTRAL LOUISIANA...
  SOUTHEASTERN SABINE PARISH IN NORTHWESTERN LOUISIANA...

* UNTIL 345 PM CST
    
* AT 1039 AM CST...DOPPLER RADAR INDICATED A CLUSTER OF TRAINING
  THUNDERSTORMS PRODUCING HEAVY RAINFALL ACROSS THE WARNED AREA.
  FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  NATCHITOCHES...WINNFIELD...COLUMBIA...COLFAX...CAMPTI...MONTGOMERY...
  FLORIEN...PROVENCAL...NATCHEZ...CLARENCE...DRY PRONG...GOLDONNA...DODSON...
  ASHLAND...CALVIN...FISHER...ROBELINE...ATLANTA...POWHATAN AND SIKES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW! ACT QUICKLY TO PROTECT YOUR LIFE.

IF YOU ENCOUNTER FLOODED ROADS...TURN AROUND...DON'T DROWN! MOST FLOOD
DEATHS OCCUR IN VEHICLES.

PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU
CAN DO SO SAFELY.

&&

LAT...LON 3219 9198 3193 9231 3142 9264 3140 9269
      3152 9272 3135 9295 3136 9339 3128 9344
      3128 9353 3117 9359 3118 9359 3132 9366
      3168 9332 3215 9308 3215 9231 3228 9231
      3227 9199 3219 9201 3220 9197

$$

12

3 follow-up statements

845 
WGUS54 KSHV 092138
FFWSHV
LAC021-043-069-081-085-127-100345-
/O.EXT.KSHV.FF.W.0021.000000T0000Z-160310T0345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
338 PM CST WED MAR 9 2016

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  WESTERN CALDWELL PARISH IN NORTH CENTRAL LOUISIANA...
  NATCHITOCHES PARISH IN NORTHWESTERN LOUISIANA...
  WINN PARISH IN NORTH CENTRAL LOUISIANA...
  SOUTHEASTERN RED RIVER PARISH IN NORTHWESTERN LOUISIANA...
  CENTRAL GRANT PARISH IN NORTH CENTRAL LOUISIANA...
  SOUTHEASTERN SABINE PARISH IN NORTHWESTERN LOUISIANA...

* UNTIL 945 PM CST WEDNESDAY

* AT 338 PM CST...WIDESPREAD FLASH FLOODING CONTINUES ACROSS THE
  WARNED AREA...WITH NUMEROUS ROADS WASHED OUT AND CLOSED.
  ADDITIONAL RAINFALL OVER THE NEXT SEVERAL HOURS WILL WORSEN THE
  ONGOING FLOODING. 

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  NATCHITOCHES...WINNFIELD...COLUMBIA...COLFAX...CAMPTI...MONTGOMERY...
  FLORIEN...PROVENCAL...NATCHEZ...CLARENCE...DRY PRONG...GOLDONNA...DODSON...
  ASHLAND...CALVIN...FISHER...ROBELINE...ATLANTA...POWHATAN AND SIKES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ENCOUNTER FLOODED ROADS...TURN AROUND...DON'T DROWN! MOST FLOOD
DEATHS OCCUR IN VEHICLES.

PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU
CAN DO SO SAFELY.

&&

LAT...LON 3219 9198 3193 9231 3142 9264 3140 9269
      3152 9272 3135 9295 3136 9339 3128 9344
      3128 9353 3117 9359 3118 9359 3132 9366
      3168 9332 3215 9308 3215 9231 3228 9231
      3227 9199 3219 9201 3220 9197

$$

12

595 
WGUS54 KSHV 100329
FFWSHV
LAC021-043-069-081-085-127-100945-
/O.EXT.KSHV.FF.W.0021.000000T0000Z-160310T0945Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
929 PM CST WED MAR 9 2016

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  WESTERN CALDWELL PARISH IN NORTH CENTRAL LOUISIANA...
  NATCHITOCHES PARISH IN NORTHWESTERN LOUISIANA...
  WINN PARISH IN NORTH CENTRAL LOUISIANA...
  SOUTHEASTERN RED RIVER PARISH IN NORTHWESTERN LOUISIANA...
  CENTRAL GRANT PARISH IN NORTH CENTRAL LOUISIANA...
  SOUTHEASTERN SABINE PARISH IN NORTHWESTERN LOUISIANA...

* UNTIL 345 AM CST THURSDAY
    
* AT 928 PM CST...DOPPLER RADAR CONTINUED TO INDICATE THUNDERSTORMS
  PRODUCING HEAVY RAIN ACROSS THE WARNED AREA. FLASH FLOODING IS
  EXPECTED TO CONTINUE OVER THE NEXT SEVERAL HOURS.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  NATCHITOCHES...WINNFIELD...COLUMBIA...COLFAX...CAMPTI...MONTGOMERY...
  FLORIEN...PROVENCAL...NATCHEZ...CLARENCE...DRY PRONG...GOLDONNA...DODSON...
  ASHLAND...CALVIN...FISHER...ROBELINE...ATLANTA...POWHATAN AND SIKES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW! ACT QUICKLY TO PROTECT YOUR LIFE.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

STAY AWAY OR BE SWEPT AWAY. RIVER BANKS AND CULVERTS CAN BECOME
UNSTABLE AND UNSAFE.

IF YOU ENCOUNTER FLOODED ROADS...TURN AROUND...DON'T DROWN! MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 3219 9198 3193 9231 3142 9264 3140 9269
      3152 9272 3135 9295 3136 9339 3128 9344
      3128 9353 3117 9359 3118 9359 3132 9366
      3168 9332 3215 9308 3215 9231 3228 9231
      3227 9199 3219 9201 3220 9197

$$

19

446 
WGUS54 KSHV 100939
FFWSHV
LAC021-043-069-081-085-127-101545-
/O.EXT.KSHV.FF.W.0021.000000T0000Z-160310T1545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
339 AM CST THU MAR 10 2016

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  WESTERN CALDWELL PARISH IN NORTH CENTRAL LOUISIANA...
  NATCHITOCHES PARISH IN NORTHWESTERN LOUISIANA...
  WINN PARISH IN NORTH CENTRAL LOUISIANA...
  SOUTHEASTERN RED RIVER PARISH IN NORTHWESTERN LOUISIANA...
  CENTRAL GRANT PARISH IN NORTH CENTRAL LOUISIANA...
  SOUTHEASTERN SABINE PARISH IN NORTHWESTERN LOUISIANA...

* UNTIL 945 AM CST THURSDAY
    
* AT 337 AM CST...DOPPLER RADAR CONTINUED TO INDICATE MODERATE RAINFALL 
  ACROSS MUCH OF THE WARNED AREA. RAINFALL OVER THE LAST 24 HOURS HAVE EXCEEDED 
  6 INCHES ACROSS MANY LOCATIONS WITH SOME LOCATIONS HAVING EXCEEDED 10 INCHES. 
  AN ADDITIONAL ONE TO THREE INCHES OF RAINFALL WILL BE POSSIBLE ACROSS THE
  WARNED AREA THIS MORNING. MANY ROAD SURFACES ARE INUNDATED WITH HIGH WATER
  AND REMAIN CLOSED AT THIS TIME ACROSS THE WARNED AREA AS WELL. 

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  NATCHITOCHES...WINNFIELD...COLUMBIA...COLFAX...CAMPTI...MONTGOMERY...
  FLORIEN...PROVENCAL...NATCHEZ...CLARENCE...DRY PRONG...GOLDONNA...DODSON...
  ASHLAND...CALVIN...FISHER...ROBELINE...ATLANTA...POWHATAN AND SIKES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW! ACT QUICKLY TO PROTECT YOUR LIFE.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

STAY AWAY OR BE SWEPT AWAY. RIVER BANKS AND CULVERTS CAN BECOME
UNSTABLE AND UNSAFE.

&&

LAT...LON 3219 9198 3193 9231 3142 9264 3140 9269
      3152 9272 3135 9295 3136 9339 3128 9344
      3128 9353 3117 9359 3118 9359 3132 9366
      3168 9332 3215 9308 3215 9231 3228 9231
      3227 9199 3219 9201 3220 9197

$$

13

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 8, 6:36 PM CST	Flash Flood Warning	SHV	Bienville, Claiborne, Lincoln, Union, Webster	16 hr
Mar 8, 6:57 PM CST	Flash Flood Warning	SHV	De Soto, Natchitoches, Red River, Sabine	6 hr
Mar 8, 7:14 PM CST	Tornado Warning	SHV	Natchitoches, Red River, Sabine	31 min
Mar 8, 7:29 PM CST	Flash Flood Warning	SHV	De Soto	6 hr
Mar 8, 7:42 PM CST	Flash Flood Warning	SHV	Bienville, De Soto, Natchitoches, Red River, Webster	6 hr
Mar 8, 7:45 PM CST	Tornado Warning	SHV	De Soto, Natchitoches, Red River	30 min
Mar 8, 7:48 PM CST	Severe Thunderstorm Warning	SHV	De Soto, Sabine	57 min
Mar 8, 8:04 PM CST	Flash Flood Warning	SHV	Bienville, Jackson, Lincoln, Natchitoches, Ouachita, Union and 1 more	6 hr
Mar 8, 8:15 PM CST	Tornado Warning	SHV	Bienville, Jackson, Natchitoches, Winn	45 min
Mar 8, 8:54 PM CST	Severe Thunderstorm Warning	SHV	Natchitoches, Red River, Sabine	66 min
Mar 8, 9:00 PM CST	Flash Flood Warning Emergency	SHV	Bossier, Caddo, De Soto, Red River, Webster	12 hr
Mar 8, 9:11 PM CST	Special Weather Statement	SHV	Lincoln	49 min
Mar 8, 9:14 PM CST	River Flood Warning	SHV	Webster	17 days
Mar 8, 9:14 PM CST	River Flood Warning	SHV	Bienville, Bossier, Webster	14 days
Mar 8, 9:19 PM CST	Tornado Warning	SHV	De Soto, Natchitoches, Red River, Sabine	41 min
Mar 8, 9:35 PM CST	Flash Flood Warning	SHV	Caldwell, Ouachita, Union	6 hr
Mar 8, 9:39 PM CST	River Flood Warning	SHV	Bienville, Bossier, Red River, Webster	18 days
Mar 8, 9:49 PM CST	River Flood Warning	SHV	Bienville, Bossier	20 days
Mar 8, 10:11 PM CST	River Flood Warning	SHV	De Soto	19 days
Mar 8, 10:22 PM CST	Special Weather Statement	SHV	Bienville	53 min
Mar 8, 10:29 PM CST	Tornado Warning	SHV	Bienville, Claiborne, Lincoln, Red River, Webster	61 min
Mar 8, 11:09 PM CST	Flash Flood Warning	SHV	Caddo, De Soto	34 hr
Mar 8, 11:10 PM CST	Tornado Warning	SHV	Bienville, Claiborne, Jackson, Lincoln	19 min
Mar 9, 1:44 AM CST	Flash Flood Warning	SHV	Bienville, Red River, Webster	8 hr
Mar 9, 3:28 AM CST	Areal Flood Warning	SHV	Bienville, Jackson, Lincoln, Ouachita, Union	3 hr
Mar 9, 4:58 AM CST	Flash Flood Warning	SHV	Caddo	5 hr
Mar 9, 7:39 AM CST	Flash Flood Warning Emergency	SHV	Bienville, Bossier, Caddo, De Soto, Red River, Webster	7 hr
Mar 9, 7:51 AM CST	River Flood Warning	SHV	Claiborne, Lincoln, Union	5 days
Mar 9, 7:56 AM CST	River Flood Warning	SHV	Lincoln, Ouachita, Union	8 days
Mar 9, 8:14 AM CST	Flash Flood Warning	SHV	Bienville, De Soto, Natchitoches, Red River, Sabine	4 hr
Mar 9, 9:18 AM CST	Flash Flood Warning	SHV	Bienville, Jackson, Lincoln, Ouachita, Red River, Union and 1 more	4 hr
Mar 9, 9:20 AM CST	Special Weather Statement	SHV	Jackson, Lincoln, Union	40 min
Mar 9, 10:06 AM CST	Special Weather Statement	SHV	Ouachita, Union	39 min
Mar 9, 10:07 AM CST	Special Weather Statement	SHV	Ouachita, Union	38 min
Mar 9, 10:26 AM CST	River Flood Warning	SHV	Caddo	19 days
Mar 9, 10:58 AM CST	Flash Flood Warning	SHV	Bienville, Claiborne, Lincoln, Union, Webster	4 hr
Mar 9, 11:08 AM CST	River Flood Warning	SHV	Caddo, De Soto	16 days
Mar 9, 11:47 AM CST	River Flood Warning	SHV	Bienville, Bossier, Caddo, Natchitoches, Red River	16 days
Mar 9, 11:47 AM CST	River Flood Warning	SHV	Grant, Natchitoches, Red River	19 days
Mar 9, 11:51 AM CST	River Flood Warning	SHV	Caldwell, Grant, LaSalle, Winn	13 days
Mar 9, 12:07 PM CST	Flash Flood Warning	SHV	Bienville, De Soto, Natchitoches, Red River, Sabine	23 hr
Mar 9, 1:15 PM CST	Flash Flood Warning	SHV	Bossier, Caddo, Webster	23 hr
Mar 9, 2:30 PM CST	Flash Flood Warning Emergency	SHV	Bienville, Bossier, Caddo, De Soto, Red River, Webster	23 hr
Mar 9, 2:30 PM CST	River Flood Warning	SHV	Caddo	6 days
Mar 9, 2:48 PM CST	Flash Flood Warning	SHV	Bienville, Caldwell, Jackson, Lincoln, Natchitoches, Ouachita and 4 more	12 hr
Mar 9, 2:52 PM CST	Flash Flood Warning	SHV	Bienville, Claiborne, Lincoln, Union, Webster	21 hr
Mar 9, 2:53 PM CST	Special Weather Statement	SHV	Bienville, Claiborne, Jackson, Lincoln, Natchitoches, Winn	52 min
Mar 9, 3:48 PM CST	Special Weather Statement	SHV	Jackson	57 min

Nearby

Flash Flood Warnings in Louisiana, 2016 Every flash flood warning in 2016

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.