Alert archive / Texas / River Flood Warnings in 2015
River Flood Warning 137, NWS Shreveport, LA
NWS Shreveport, LA issued this river flood warning at May 24, 2015, 9:15 AM CDT for Cass County, Harrison County, Marion County, Texas; Caddo Parish, Louisiana. It took effect at May 27, 2015, 7:00 AM CDT. It was in force for 42 hr.
The area
The counties it named.
The facts
- Issued
- May 24, 2015, 9:15 AM CDT (14:15 UTC)
- In effect from
- May 27, 2015, 7:00 AM CDT
- Expired
- May 29, 2015, 1:00 AM CDT
- In force
- 42 hr
- Issued by
- NWS Shreveport, LA
- Area
- Storm-based polygon
- Flood severity
- Minor
Counties Caddo Parish, LA, Cass County, TX, Harrison County, TX, Marion County, TX
The radar
The Shreveport radar (KSHV), 50 km from the middle of the area, began a volume at 14:18 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 Big Cypress Creek at Mooringsport (Caddo Lake) (LCOL1).
- Action stage
- 171.5 ft
- Minor stage
- 172 ft
- Moderate stage
- 174.5 ft
- Major stage
- 178 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 07346310, 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 May 24, 7:09 AM CDT, 2 hours 6 minutes earlier.
Area forecast discussion, May 24, 7:09 AM CDT, 2 hours 6 minutes before
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</html>Hazardous weather outlook, May 24, 6:17 AM CDT, 2 hours 58 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SHREVEPORT LA 617 AM CDT SUN MAY 24 2015 ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077- TXZ096-097-108>112-124>126-136>138-149>153-165>167-241700- 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- 617 AM CDT SUN MAY 24 2015 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... SHOWERS AND THUNDERSTORMS WILL INCREASE ACROSS THE REGION TODAY...AHEAD OF A STRONG UPPER LEVEL DISTURBANCE THAT WILL LIFT NORTHEAST ACROSS THE AREA THIS AFTERNOON AND TONIGHT. DAYTIME HEATING WILL HELP TO DESTABLIZE THE AIR MASS AHEAD OF THIS DISTURBANCE...ESPECIALLY OVER DEEP EAST TEXAS...NORTH LOUISIANA AND SOUTHWEST ARKANSAS...AS STRONG SHEAR AND FORCING ALOFT AHEAD OF THIS DISTURBANCE SPREADS INTO THE REGION. ISOLATED TO SCATTERED SEVERE THUNDERSTORMS ARE POSSIBLE...WITH DAMAGING WINDS AND ISOLATED TORNADOES POSSIBLE. HOWEVER...THE PRIMARY THREAT FROM THESE THUNDERSTORMS WILL BE LOCALLY HEAVY RAINFALL...WHICH WILL FALL OVER GROUNDS THAT STILL REMAIN SATURATED FROM EXCESSIVE RAINFALL THAT FELL EARLIER THIS PAST WEEK. ONE TO THREE INCHES OF RAIN...WITH ISOLATED HIGHER AMOUNTS...WILL BE POSSIBLE...WHICH WILL CONTRIBUTE TO INCREASED RUNOFF AND THE POTENTIAL FOR FLASH FLOODING. THE HEAVY RAIN AND ISOLATED SEVERE THUNDERSTORM THREAT WILL DIMINISH FROM WEST TO EAST THIS EVENING...ALTHOUGH SCATTERED SHOWERS AND THUNDERSTORMS WILL PERSIST OVERNIGHT MAINLY OVER DEEP EAST TEXAS AND NORTH LOUISIANA. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY... SHOWERS AND THUNDERSTORMS ARE EXPECTED TO INCREASE ONCE AGAIN MONDAY AFTERNOON AND EVENING OVER THE REGION...AHEAD OF ANOTHER STRONG UPPER LEVEL DISTURBANCE THAT WILL MOVE INTO THE SOUTHERN PLAINS. DAYTIME HEATING WILL CONTRIBUTE TO AIR MASS DESTABILIATION MONDAY AFTERNOON...SUCH THAT SCATTERED SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS AND ISOLATED TORNADOES WILL BE POSSIBLE OVER EAST TEXAS...SOUTHWEST ARKANSAS...AND NORTH LOUISIANA. HOWEVER...THE PRIMARY THREAT WILL AGAIN BE LOCALLY HEAVY RAINFALL...WITH ADDITIONAL AMOUNTS OF TWO TO IN EXCESS OF FOUR INCHES LIKELY. THIS WILL RESULT IN RAPID RUNOFF AND ENHANCE THE POTENTIAL FOR FLASH FLOODING OVER MUCH OF THE REGION. THE HEAVY RAINFALL THREAT WILL DIMINISH TUESDAY MORNING WITH THE DEPARTURE OF THIS DISTURBANCE. SCATTERED SHOWERS AND THUNDERSTORMS WILL REMAIN POSSIBLE WEDNESDAY THROUGH SATURDAY. .SPOTTER INFORMATION STATEMENT... ACTIVATION OF EMERGENCY MANAGERS...SKYWARN NETWORKS...AND AMATEUR RADIO OPERATORS...MAY BE NEEDED THIS AFTERNOON AND TONIGHT FOR THE POTENTIAL FOR ISOLATED SEVERE THUNDERSTORMS AND FLASH FLOODING...AS WELL AS RAINFALL REPORTS. 15
The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 24, 10:35 AM CDT | Special Weather Statement | SHV | Camp, Franklin, Gregg, Nacogdoches, Rusk, Smith and 2 more | 40 min |
| May 24, 11:57 AM CDT | Tornado Warning | SHV | Harrison, Marion | 34 min |
| May 24, 11:59 AM CDT | Tornado Warning | SHV | Harrison, Marion | 46 min |
| May 24, 12:31 PM CDT | Tornado Warning | SHV | Cass, Marion | 7 min |
| May 24, 12:49 PM CDT | Severe Thunderstorm Warning | SHV | Bowie, Cass | 56 min |
| May 24, 2:28 PM CDT | River Flood Warning | SHV | Bowie | 19 days |
| May 24, 3:18 PM CDT | River Flood Warning | SHV | Smith, Wood | 21 days |
| May 24, 5:53 PM CDT | Special Weather Statement | SHV | Gregg | 37 min |
| May 24, 5:57 PM CDT | Tornado Warning | SHV | Cherokee, Gregg, Rusk, Smith | 48 min |
| May 24, 12:20 PM CDT | Severe Thunderstorm Warning | SHV | Grant, Natchitoches, Red River, Winn | 55 min |
| May 24, 1:36 PM CDT | Severe Thunderstorm Warning | SHV | Claiborne, Lincoln, Union | 39 min |
| May 24, 2:28 PM CDT | River Flood Warning | SHV | Bossier, Caddo | 18 days |
| May 24, 2:39 PM CDT | Severe Thunderstorm Warning | SHV | Union | 66 min |
| May 24, 3:13 PM CDT | Severe Thunderstorm Warning | SHV | Caldwell, Ouachita, Union | 29 min |
| May 24, 2:00 PM CDT | Severe Thunderstorm Warning | SHV | Columbia, Union | 30 min |
| May 24, 2:59 PM CDT | River Flood Warning | SHV | Little River, Sevier | 5 days |
| May 24, 2:59 PM CDT | River Flood Warning | SHV | Howard, Little River, Sevier | 7 days |
Nearby
River Flood Warnings in Texas, 2015River Flood Warnings in Louisiana, 2015Every 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; the gauge from the NWS water service and the USGS.