Alert archive / Texas / Flash Flood Warnings in 2010

Flash Flood Warning 6, NWS Shreveport, LA

June 10, 20105 counties in Texas

NWS Shreveport, LA issued this flash flood warning at Jun 10, 2010, 9:37 AM CDT for 5 counties in Texas. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 10, 2010, 9:37 AM CDT (14:37 UTC)
Expired
Jun 10, 2010, 3:30 PM CDT
In force
6 hr
Issued by
NWS Shreveport, LA
Area
Storm-based polygon
Flood severity
None

Counties Cherokee County, TX, Gregg County, TX, Rusk County, TX, Upshur County, TX, Wood County, TX

The radar

The Shreveport radar (KSHV), 110 km from the middle of the area, began a volume at 14:37 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, 2.6 hours before the alert went out and 119 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-pSkew-T log-p diagram, Shreveport, LA at 12:00Z on 2010-06-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 996 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Shreveport, LA at 12:00Z on 2010-06-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 44 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
996 J/kg
Mixed-layer CIN
-40 J/kg
Mixed-layer LCL
806 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
44 m²/s²
0-3 km storm-relative helicity
80 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash 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 flash flood warning went out at Jun 10, 4:23 AM CDT, 5 hours 14 minutes earlier.

Area forecast discussion, Jun 10, 4:23 AM CDT, 5 hours 14 minutes before
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Hazardous weather outlook, Jun 10, 8:40 AM CDT, 57 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE SHREVEPORT LA
840 AM CDT THU JUN 10 2010

TXZ096-097-108>112-124>126-136>138-149>153-165>167-111345-
RED RIVER-BOWIE-FRANKLIN-TITUS-CAMP-MORRIS-CASS-WOOD-UPSHUR-
MARION-SMITH-GREGG-HARRISON-CHEROKEE-RUSK-PANOLA-NACOGDOCHES-
SHELBY-ANGELINA-SAN AUGUSTINE-SABINE TX-
840 AM CDT THU JUN 10 2010

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

.DAY ONE...TODAY AND TONIGHT...

AN UPPER LEVEL LOW PRESSURE SYSTEM WILL MOVE SLOWLY ACROSS
NORTHEAST TEXAS INTO EXTREME SOUTHWEST ARKANSAS BY THIS EVENING.
ADDITIONAL RAINFALL AMOUNTS OF 4 TO OVER 6 INCHES WILL BE
POSSIBLE THROUGH THE EVENING HOURS...RESULTING IN SIGNIFICANT
FLOODING ACROSS PORTIONS OF THE AREA. AS A RESULT...A FLASH FLOOD
WATCH IS IN EFFECT UNTIL 7 AM FRIDAY MORNING. IN ADDITION TO THE
HEAVY RAIN...ISOLATED STRONGER STORMS MAY BE CAPABLE OF PRODUCING
STRONG GUSTY WINDS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY...

SHOWERS AND THUNDERSTORMS WILL LIFT NORTH OF THE AREA AND MOSTLY
DIMINISH ON FRIDAY.

.SPOTTER INFORMATION STATEMENT...

ACTIVATION OF STORM SPOTTERS...HAM RADIO OPERATORS AND EMERGENCY
MANAGEMENT PERSONNEL MAY BE NEEDED THROUGH TONIGHT...PRIMARILY
FOR FLOODING PROBLEMS.

ARZ073-LAZ004>006-012>014-018>022-111345-
UNION AR-CLAIBORNE-LINCOLN-UNION LA-BIENVILLE-JACKSON-OUACHITA-
NATCHITOCHES-WINN-GRANT-CALDWELL-LA SALLE-
840 AM CDT THU JUN 10 2010

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

.DAY ONE...TODAY AND TONIGHT...

ISOLATED TO SCATTERED SHOWERS THIS MORNING ARE EXPECTED TO
INCREASE...WITH SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS
EXPECTED TO DEVELOP BY THIS AFTERNOON AND EVENING ACROSS THE AREA.
STRONG TO SEVERE THUNDERSTORMS WILL BE POSSIBLE THIS AFTERNOON AND
INTO THIS EVENING AS AN UPPER LEVEL DISTURBANCE OVER DEEP EAST
TEXAS COMBINES WITH A MOIST AND UNSTABLE ATMOSPHERE. THE PRIMARY
THREAT WITH THE STRONGEST STORMS WILL BE DAMAGING WINDS.
HOWEVER...BRIEF ISOLATED TORNADOES WILL ALSO BE A CONCERN. THIS
SEVERE ACTIVITY SHOULD BEGIN TO DIE DOWN THIS EVENING.

IN ADDITION TO STRONG AND SEVERE STORMS...HEAVY RAIN WILL BE
POSSIBLE WITH ANY STORMS THAT DEVELOP. THIS MAY LEAD TO MINOR
FLOODING PROBLEMS INCLUDING PONDING OF WATER ON ROADWAYS AND IN
LOW LYING AREAS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY...

SHOWERS AND THUNDERSTORMS WILL LIFT NORTH OF THE AREA AND MOSTLY
DIMINISH ON FRIDAY.

.SPOTTER INFORMATION STATEMENT...

ACTIVATION OF STORM SPOTTERS...HAM RADIO OPERATORS AND EMERGENCY
MANAGEMENT PERSONNEL MAY BE NEEDED THIS AFTERNOON AND EVENING FOR
THE POSSIBILITY OF SEVERE STORMS.

ARZ050-051-059>061-070>072-LAZ001>003-010-011-017-OKZ077-111345-
SEVIER-HOWARD-LITTLE RIVER-HEMPSTEAD-NEVADA-MILLER-LAFAYETTE-
COLUMBIA-CADDO-BOSSIER-WEBSTER-DE SOTO-RED RIVER-SABINE LA-
MCCURTAIN-
840 AM CDT THU JUN 10 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST
ARKANSAS...NORTHWEST LOUISIANA AND SOUTHEAST OKLAHOMA.

.DAY ONE...TODAY AND TONIGHT...

AN UPPER LEVEL LOW PRESSURE SYSTEM WILL MOVE SLOWLY ACROSS
NORTHEAST TEXAS INTO EXTREME SOUTHWEST ARKANSAS BY THIS EVENING.
ADDITIONAL RAINFALL AMOUNTS OF 3 TO 5 INCHES WILL BE POSSIBLE
THROUGH THE EVENING HOURS...RESULTING IN SIGNIFICANT FLOODING
ACROSS PORTIONS OF THE AREA. AS A RESULT...A FLASH FLOOD WATCH IS
IN EFFECT UNTIL 7 AM FRIDAY MORNING.

IN ADDITION...STRONG TO SEVERE STORMS WILL BE POSSIBLE THIS
AFTERNOON AND EVENING AS THIS UPPER LEVEL DISTURBANCE COMBINES
WITH A MOIST AND UNSTABLE AIRMASS. THE PRIMARY THREAT WITH THE
STRONGEST STORMS WILL BE DAMAGING WINDS. HOWEVER...BRIEF ISOLATED
TORNADOES WILL ALSO BE A CONCERN. THIS SEVERE ACTIVITY SHOULD
BEGIN TO DIE DOWN THIS EVENING.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY...

SHOWERS AND THUNDERSTORMS WILL LIFT NORTH OF THE AREA AND MOSTLY
DIMINISH ON FRIDAY.

.SPOTTER INFORMATION STATEMENT...

ACTIVATION OF STORM SPOTTERS...HAM RADIO OPERATORS AND EMERGENCY
MANAGEMENT PERSONNEL MAY BE NEEDED THROUGH TONIGHT FOR BOTH
FLOODING CONCERNS AND SEVERE WEATHER.

In the hours before

Local storm report, Jun 10, 7:26 AM CDT, 2 hours 11 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
726 AM CDT THU JUN 10 2010

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

0724 AM     FLASH FLOOD      TYLER                   32.33N 95.30W
06/10/2010                   SMITH              TX   BROADCAST MEDIA

            SEVERAL STREETS IN DOWNTOWN TYLER EXPERIENCING FLOODING

&&

PO
Local storm report, Jun 10, 8:45 AM CDT, 52 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
845 AM CDT THU JUN 10 2010

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

0837 AM     FLASH FLOOD      TYLER                   32.33N 95.30W
06/10/2010                   SMITH              TX   BROADCAST MEDIA

            1-2 FEET OF WATER HAS TOPPED AN EARTHEN DAM FROM A NEARBY
            LAKE/DRAINAGE CANAL ON LAKE PLACID ROAD IN SOUTHWEST
            TYLER.

&&

15
Local storm report, Jun 10, 8:54 AM CDT, 43 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
854 AM CDT THU JUN 10 2010

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

0850 AM     FLASH FLOOD      TYLER                   32.33N 95.30W
06/10/2010                   SMITH              TX   BROADCAST MEDIA

            SPUR 364 NEAR THE LOOP IN TYLER IS UNDERWATER IN THE LOW
            LYING AREAS.

&&

15

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 10, 12:02 AM CDTFlash Flood WarningSHVCherokee, Gregg, Smith6 hr
Jun 10, 6:38 AM CDTFlash Flood Warning EmergencySHVCherokee, Smith4 hr
Jun 10, 10:03 AM CDTRiver Flood WarningSHVAnderson, Cherokee, Houston14 days
Jun 10, 10:27 AM CDTFlash Flood WarningSHVCherokee, Smith6 hr
Jun 10, 2:40 PM CDTAreal Flood AdvisorySHVCamp, Cass, Morris, Titus3 hr
Jun 10, 3:28 PM CDTFlash Flood WarningSHVGregg, Upshur, Wood4 hr
Jun 10, 3:57 PM CDTFlash Flood WarningSHVCherokee, Smith4 hr
Jun 10, 4:01 PM CDTSevere Thunderstorm WarningSHVFranklin, Red River, Titus59 min
Jun 10, 4:07 PM CDTFlash Flood WarningSHVCamp, Franklin, Titus4 hr
Jun 10, 5:35 PM CDTTornado WarningSHVCamp, Morris, Titus25 min

Nearby

Flash Flood Warnings in Texas, 2010Every flash flood warning in 2010

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.