Alert archive / Texas / Flash Flood Watches in 2007
Flash Flood Watch 9, NWS Shreveport, LA
NWS Shreveport, LA issued this flash flood watch at Jul 3, 2007, 5:02 AM CDT for 21 counties in Texas; 7 parishes in Louisiana; Lafayette County, Miller County, Arkansas. It took effect at Jul 3, 2007, 6:00 AM CDT. It was in force for 10 hr.
The area
The counties it named.
The facts
- Issued
- Jul 3, 2007, 5:02 AM CDT (10:02 UTC)
- In effect from
- Jul 3, 2007, 6:00 AM CDT
- Expired
- Jul 3, 2007, 3:45 PM CDT
- In force
- 10 hr
- Issued by
- NWS Shreveport, LA
- Flood severity
- None
All 30 counties
Lafayette County, AR, Miller County, AR, Bossier Parish, LA, Caddo Parish, LA, De Soto Parish, LA, Natchitoches Parish, LA, Red River Parish, LA, Sabine Parish, LA, Webster Parish, LA, Angelina County, TX, Bowie County, TX, Camp County, TX, Cass 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, Red River 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), 48 km from the middle of the area, began a volume at 10:03 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
Fort Worth, TX (KFWD), launched 00:00Z, 10.0 hours before the alert went out and 278 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
- 497 J/kg
- Mixed-layer CIN
- -38 J/kg
- Mixed-layer LCL
- 1125 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- 50 m²/s²
- 0-3 km storm-relative helicity
- 19 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 Jul 2, 10:17 PM CDT, 6 hours 45 minutes earlier.
Area forecast discussion, Jul 2, 10:17 PM CDT, 6 hours 45 minutes before
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</html>Hazardous weather outlook, Jul 2, 12:00 PM CDT, 17 hours 2 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SHREVEPORT LA 1200 PM CDT MON JUL 2 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>167-031100- 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 MON JUL 2 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST OKLAHOMA...NORTHEAST TEXAS...SOUTHWEST ARKANSAS...NORTHWEST AND NORTH CENTRAL LOUISIANA. .DAY ONE...TODAY AND TONIGHT... NUMEROUS THUNDERSTORMS ARE EXPECTED ACROSS THE FOUR STATE REGION THIS AFTERNOON INTO TONIGHT. DUE TO AN UNSTABLE AND VERY MOIST ATMOSPHERE...RAINFALL WILL BE HEAVY AT TIMES...WITH RAINFALL RATES UP TO TWO INCHES AN HOUR. ALSO...A FEW STORMS WILL BE CAPABLE OF PRODUCING WIND GUSTS UP TO 40 MPH AND FREQUENT AND POTENTIALLY DEADLY LIGHTNING. AREAS WHICH HAVE RECEIVED HEAVY RAINFALL OVER THE PAST WEEK OR SO...WHICH INCLUDES PARTS OF EAST NORTHEAST TEXAS...SOUTHWEST ARKANSAS...AND SOUTHEAST OKLAHOMA HAVE A HIGH POTENTIAL FOR FLASH FLOODING. THIS AREA IS GENERALLY ALONG AND NORTHWEST OF A LINE FROM WELLS TEXAS...TO MOUNT ENTERPRISE...MARSHALL...AND TEXARKANA...THEN NORTH TO NASHVILLE AND DIERKS ARKANSAS. A FLASH FLOOD WATCH IS IN EFFECT FOR THIS AREA UNTIL 4 AM TUESDAY MORNING. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY... THUNDERSTORMS WILL CONTINUE INTO THE WORKWEEK...MAINLY DURING THE AFTERNOON AND EARLY EVENING HOURS. SOME OF THE MORE INTENSE THUNDERSTORMS WILL BE CAPABLE OF GUSTY WINDS...FREQUENT LIGHTNING... AND HEAVY RAINFALL. .SPOTTER INFORMATION STATEMENT... ACTIVATION OF STORM SPOTTERS...HAM RADIO OPERATORS...AND EMERGENCY MANAGEMENT PERSONNEL MAY BE NEEDED...ESPECIALLY FOR SUPPORT IN THE EVENT FLASH FLOODING OCCURS.
Nearby
Flash Flood Watches in Texas, 2007Flash Flood Watches in Louisiana, 2007Flash Flood Watches in Arkansas, 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.