Alert archive / Texas / Flash Flood Watches in 2007
Flash Flood Watch 4, NWS Shreveport, LA
NWS Shreveport, LA issued this flash flood watch at Jun 16, 2007, 3:32 PM CDT for 18 counties in Texas; Sabine Parish, Louisiana. It was in force for 24 hr.
The area
The counties it named.
The facts
- Issued
- Jun 16, 2007, 3:32 PM CDT (20:32 UTC)
- Expired
- Jun 17, 2007, 3:29 PM CDT
- In force
- 24 hr
- Issued by
- NWS Shreveport, LA
- Flood severity
- None
Counties Sabine Parish, LA, Angelina County, TX, Camp County, TX, Cherokee County, TX, Franklin County, TX, Gregg County, TX, Harrison County, TX, Marion County, TX, Morris County, TX, Nacogdoches County, TX, Panola County, TX, Rusk County, TX, Sabine County, TX, San Augustine County, TX, Shelby County, TX, Smith County, TX, Titus County, TX, Upshur County, TX, Wood County, TX
The radar
The Shreveport radar (KSHV), 78 km from the middle of the area, began a volume at 20:35 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 nearest sounding before it
Shreveport, LA (KSHV), launched 12:00Z, 8.5 hours before the alert went out and 87 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.
- Mixed-layer CAPE
- 1020 J/kg
- Mixed-layer CIN
- -22 J/kg
- Mixed-layer LCL
- 505 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 13 m²/s²
- 0-3 km storm-relative helicity
- 45 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this flash flood watch 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 flash flood watch went out at Jun 16, 3:17 PM CDT, 15 minutes earlier.
Area forecast discussion, Jun 16, 3:17 PM CDT, 15 minutes before
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</html>Hazardous weather outlook, Jun 16, 12:00 PM CDT, 3 hours 32 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SHREVEPORT LA 1200 PM CDT SAT JUN 16 2007 ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077-TXZ096- 097-108>112-124>126-136>138-149>153-165>167-170000- ANGELINA-BIENVILLE-BOSSIER-BOWIE-CADDO-CALDWELL-CAMP-CASS-CHEROKEE- CLAIBORNE-COLUMBIA-DE SOTO-FRANKLIN-GRANT-GREGG-HARRISON-HEMPSTEAD- HOWARD-JACKSON-LA SALLE-LAFAYETTE-LINCOLN-LITTLE RIVER-MARION- MCCURTAIN-MILLER-MORRIS-NACOGDOCHES-NATCHITOCHES-NEVADA-OUACHITA- PANOLA-RED RIVER LA-RED RIVER TX-RUSK-SABINE LA-SABINE TX- SAN AUGUSTINE-SEVIER-SHELBY-SMITH-TITUS-UNION AR-UNION LA-UPSHUR- WEBSTER-WINN-WOOD- 1200 PM CDT SAT JUN 16 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST OKLAHOMA...NORTHEAST TEXAS...SOUTHWEST ARKANSAS...NORTHWEST AND NORTH CENTRAL LOUISIANA. .DAY ONE...THIS AFTERNOON AND TONIGHT... AFTERNOON SHOWERS AND THUNDERSTORMS WILL AGAIN BE POSSIBLE ACROSS MUCH OF THE FOUR STATE REGION...AS AN UPPER LEVEL LOW PRESSURE SYSTEM REMAINS STATIONARY ACROSS NORTH CENTRAL TEXAS. IN ADDITION...THE AIR MASS OVER THE FOUR STATE AREA REMAINS SATURATED... ADDING TO THE INCREASED RISK OF LOCALLY HEAVY RAINFALL. ANY NEW THUNDERSTORMS THAT DEVELOP WILL LIKELY BE SLOW MOVING...PRODUCING RAINFALL AMOUNTS OF ONE TO TWO INCHES IN SHORT PERIODS OF TIME. THUS...LOCALIZED FLOODING MAY RESULT...ESPECIALLY IN LOW LYING AND POOR DRAINAGE AREAS. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY... SCATTERED THUNDERSTORMS WILL PERSIST SUNDAY AND MONDAY...AS THE UPPER LOW PRESSURE AREA REMAINS ANCHORED OVER NORTH CENTRAL TEXAS OVER THE NEXT DAY OR SO. THIS SYSTEM SHOULD WEAKEN AND SLOWLY EJECT NORTHEAST INTO OKLAHOMA AND WESTERN ARKANSAS MONDAY...BUT ADDITIONAL SHOWERS AND THUNDERSTORMS WILL LIKELY DEVELOP OVER ALL THE FOUR STATE REGION THROUGH TUESDAY. SOME ISOLATED STORMS MAY BRIEFLY BECOME SEVERE...WITH DAMAGING WINDS AND LARGE HAIL POSSIBLE. HOWEVER...LOCALLY HEAVY RAINFALL WILL CONTINUE TO BE THE MAIN THREAT...WHICH COULD PRODUCE FLOODING OF LOW LYING...POOR DRAINAGE AREAS. THIS THREAT WILL BEGIN TO END LATE TUESDAY...AS THE REMNANTS OF THIS SYSTEM DRIFT SOUTH AND EAST OF THE REGION. .SPOTTER INFORMATION STATEMENT... THE ACTIVATION OF SKYWARN SPOTTERS...EMERGENCY MANAGERS...AND HAM RADIO OPERATORS...SHOULD NOT BE MAY BE NEEDED THIS AFTERNO0N AND TONIGHT. 11
In the hours before
Local storm report, Jun 16, 9:37 AM CDT, 5 hours 55 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
937 AM CDT SAT JUN 16 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0928 AM FLASH FLOOD 1 N GLADEWATER 32.56N 94.95W
06/16/2007 UPSHUR TX TRAINED SPOTTER
FLOODING ACROSS US 80 WITH MINOR SIDESTREET FLOODING IN
NORTH PART OF CITY
&&
12Local storm report, Jun 16, 11:48 AM CDT, 3 hours 44 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
1148 AM CDT SAT JUN 16 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1120 AM FLASH FLOOD 3 S GLADEWATER 32.50N 94.95W
06/16/2007 GREGG TX LAW ENFORCEMENT
TX 135 NEAR FM 2207 CLOSED DUE TO HIGH WATER
1120 AM FLASH FLOOD 5 E GLADEWATER 32.54N 94.86W
06/16/2007 GREGG TX LAW ENFORCEMENT
WATER OVER US 271...MCCOMIC RD...AND MULTIPLE SECONDARY
ROADS IN NORTHWEST PART OF COUNTY
1123 AM FLASH FLOOD 5 S LINDALE 32.43N 95.41W
06/16/2007 SMITH TX LAW ENFORCEMENT
WATER OVER MULTIPLE SECONDARY ROADS IN NORTHERN PART OF
SMITH CO.
&&
12Local storm report, Jun 16, 1:09 PM CDT, 2 hours 23 minutes before
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</html>Local storm report, Jun 16, 2:15 PM CDT, 1 hour 17 minutes before
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</html>The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 16, 7:53 AM CDT | Flash Flood Warning | SHV | Upshur | 3 hr |
| Jun 16, 9:50 AM CDT | Flash Flood Warning | SHV | Smith | 3 hr |
| Jun 16, 11:24 AM CDT | Flash Flood Warning | SHV | Gregg, Upshur | 4 hr |
| Jun 16, 12:49 PM CDT | Flash Flood Warning | SHV | Smith | 86 min |
Nearby
Flash Flood Watches in Texas, 2007Flash Flood Watches in Louisiana, 2007Every flash flood watch in 2007
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.