Excessive Heat in Texas, September 11 to 14, 2011

Name: Excessive Heat in Texas, September 11 to 14, 2011
Start: 2011-09-11T00:00
End: 2011-09-14T23:59
Location: Texas

September 11 to 14, 2011 · NWS SHV · 21 events in 21 counties and zones

Westerly winds in the lower levels of the atmosphere and a strong ridge of high pressure aloft allowed for triple digit temperatures once again across Northeast Texas during the middle portion of September. This was the conclusion of a record breaking year when it came to heat across Northeast Texas.

Where it happened

Every event with a place to put it; 21 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

Tornadoes
Tropical storms and surge
Floods
Wind
Hail
Winter weather
Heat and drought
Cold
Fire, smoke and dust
Marine and coastal
Other

Open the live radar over this ground

The toll

Deaths: 0
Injuries: 0
Property damage: None recorded
Crop damage: None recorded
Events: 21

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS SHV wrote it up.

While the detailed summer heat wave across Northeast Texas can be found in the August 2011 storm data summary, this is a summary of triple digit temperatures for the year for a few locations across Northeast Texas ending during the month of September.

Tyler, Texas saw 81 triple digit temperatures in 2011. |Longview, Texas saw 73 triple digit temperatures in 2011.|Lufkin, Texas saw 62 triple digit temperatures in 2011.

What forecasters said that day

The local office's own words before the first event, 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 the first event at Sep 10, 11:13 PM CST, 47 minutes earlier.

Area forecast discussion, Sep 10, 11:13 PM CST, 47 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SHREVEPORT LA
1213 AM CDT SUN SEP 11 2011

.DISCUSSION...
SHOWERS ARE FALLING FROM 12KFT...TOPS ARE TO 15KFT. THIS MAY
AMOUNT TO A TRACE OR COUPLE OF HUNDRETHS IN A FEW SPOTS BETWEEN
NOW AND DAYBREAK/12Z. MID EVENING UPDATE ONLY CARRIED 20 POPS THROUGH
06Z. THE UPPER LOW WILL CONTINUE TO THE SOUTHEAST OVERNIGHT.
HOPEFULLY IT WON/T BE TOO FAR EAST FOR HEATING WHEN WE COULD SEE
SOME HEAVIER RAINFALL. /24/

&&

.PREV DISCUSSION... /ISSUED 956 PM CDT SAT SEP 10 2011/

DISCUSSION...
UPPER LOW OVER NE OK IS THE REMNANT OF LEE WHICH IS DRIFTING THIS
WAY. WE WILL CONTINUE A SLIGHT CHANCE IN THE THE POP/WX GRIDS FOR
THIS NORTHERN TIER...BUT THE T/TD SPREADS ARE BIG...MAYBE SOME
SPRINKLES CHANGING OVER TO DRIZZLE OR LIGHT RAIN BRIEFLY FOR A
COUPLE MORE HOURS. ON THE BIG PICTURE...TO NOTE MOST OF THE
THUNDERSTORMS TODAY WERE ON THE NE QUAD OF THIS LOW WHICH MAY WORK
OUT BETTER FOR OUR AREA TO SEE SOME ACTUAL RAINFALL SCATTERED
AROUND DURING THE MID AFTERNOON THROUGH MID EVENING HOURS ON
SUNDAY WITH THE UPPER LOW DROPPING SLOWLY SE NOW. GFS HAS SOME
SUPER LIGHT QPF AND EURO HAS A NICKEL OUT EAST...BUT HPC IS ZERO.
SO HELD OFF ON ADDING POPS FOR TOMORROW AT THIS TIME...AND WE/LL
SEE IF GFS TRENDS WETTER QPF WISE WITH THIS 11/00Z RUN. LITTLE CHANGE
TO SKY GRIDS WITH CERTAINLY SOME CLOUDINESS ALONG AND NORTH OF
I-20. THIS WILL MAKE FOR SLIGHTLY WARMER TEMPS THAN WE HAVE SEEN
OVER THE LAST FEW NIGHTS. LOADED IN THE NEW NAM WINDS WHICH
INITIALIZED WITH MLU SE BETTER AND LIGHT NORTHERLY FLOW OVER I-30.
HOWEVER...THE NEW NAM WINDS ARE A LITTLE STRONGER OVER NE TX FOR
TOMORROW AND SHOULD BEAR WATCHING. /24/

AVIATION...
CONTINUATION OF VFR CONDITIONS ACROSS FOUR STATE REGION FOR THE
NEXT 24 HOUR FORECAST PERIOD ENDING AT 12/06 UTC. EXPECTING CLOUDS
ACROSS THE AREA DUE TO MOISTURE ASSOCIATED WITH DISTURBANCES
ROTATING AROUND AN UPPER LOW OVER THE OHIO VALLEY AND TROUGH
EXTENDING SOUTHWEST INTO OKLAHOMA AND NORTH TEXAS. SCATTERED TO
BROKEN CLOUDS BETWEEN 5 KFT TO 13 KFT OVERNIGHT AND INTO SUNDAY.
CAN NOT RULE OUT A FEW SHOWERS OR ISOLATED THUNDERSTORMS AS
DISTURBANCES MOVE OVER THE FOUR STATE REGION MAINLY ALONG AND
NORTH OF INTERSTATE 20 SUNDAY. WILL OMIT MENTION IN TERMINAL
FORECAST SITES SINCE CHANCE LOW. WINDS WILL BE LIGHT AND VARIABLE
THROUGH 11/15 UTC WHEN WINDS INCREASE TO WEST AND NORTHWEST 6 TO
11 KNOTS. WINDS DROP TO LIGHT AND VARIABLE AFTER 12/00 UTC. /06/

PREV DISCUSSION... /ISSUED 237 PM CDT SAT SEP 10 2011/

DISCUSSION...
UPPER-LEVEL LOW ACROSS THE OHIO VALLEY PRODUCING SHOWERS ACROSS
CENTRAL AND SOUTHERN ARKANSAS THIS AFTERNOON. THESE SHOWERS
EXPECTED TO PERSIST THROUGH SUNSET BEFORE DIMINISHING. UPPER-LOW
TO SWING EAST ON BY EARLY MONDAY MORNING...ALLOWING UPPER-LEVEL RIDGE
TO BUILD ACROSS THE REGION. WITH UPPER-RIDGE IN
PLACE...TEMPERATURES FORECAST TO GRADUALLY CLIMB INTO THE MID TO
UPPER 90S FROM MONDAY THROUGH WEDNESDAY.

WEAK FRONTAL BOUNDARY STALLS ACROSS THE REGION LATE THURSDAY NIGHT
INTO FRIDAY...ALLOWING FOR INCREASED CLOUD-COVER WHICH WILL KEEP
HIGH TEMPERATURES IN THE LOW TO MID 90S LATE IN THE WORK WEEK. AREAS
BEHIND THE FRONT...SUCH AS THE INTERSTATE 30 CORRIDOR...COULD
POTENTIALLY SEE HIGH TEMPERATURES IN THE UPPER 80S LATE IN THE
WEEK.

UPPER-LEVEL RIDGE BUILDS ACROSS THE GULF OF MEXICO NEXT
WEEKEND...WITH ZONAL WESTERLY FLOW SETTING-UP ACROSS THE REGION.
MOISTURE TRAPPED BENEATH THE RIDGE MAY ALLOW FOR SUFFICIENT CLOUD-
COVER... ALONG WITH INCREASED CHANCES OF AFTERNOON
PRECIPITATION...TO MAINTAIN HIGH TEMPERATURES IN THE LOWER 90S.
/05/

AVIATION...
CONTINUATION OF VFR CONDITIONS ACROSS FOUR STATE REGION FOR THE NEXT
24 HOUR FORECAST PERIOD. EXPECT SCT TO BKN CLOUDS 5 TO 8 KFT MAINLY
NORTH OF INTERSTATE 30 WITH ISOLATED SHOWERS THIS AFTERNOON AND
EARLY EVENING. SURFACE WIND NORTHWEST AROUND 10 KTS WITH GUSTS AS
HIGH AS 20 KTS ACROSS EAST TEXAS...SOUTHWEST ARKANSAS AND SOUTHEAST
OKLAHOMA...DIMINISHING AFTER 23Z. WIND ACROSS NORTHWEST AND
NORTHCENTRAL LOUISIANA SOUTHWEST 5 TO 10 KTS WITH GUST TO 15 KTS.
WIND MOSTLY LIGHT AND VARIABLE AREA WIDE DURING THE NIGHTTIME HOURS
AND EARLY SUNDAY MORNING. /14/

&&

.PRELIMINARY POINT TEMPS/POPS...
SHV  64  94  67  97  70 /  10  10  10  10  10
MLU  63  93  65  94  67 /  10  10  10  10  10
DEQ  58  92  60  96  68 /  10  10  10  10  20
TXK  62  92  65  96  70 /  10  10  10  10  10
ELD  61  92  62  95  68 /  10  10  10  10  20
TYR  63  96  67  98  70 /  10  10  10  10  10
GGG  61  95  66  97  70 /  10  10  10  10  10
LFK  62  97  67  97  68 /  10  10  10  10  10

&&

.SHV WATCHES/WARNINGS/ADVISORIES...
AR...NONE.
LA...NONE.
OK...NONE.
TX...NONE.
&&

24/99

Hazardous weather outlook, Sep 10, 10:45 AM CST, 13 hours 15 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SHREVEPORT LA
1145 AM CDT SAT SEP 10 2011

ARZ050-051-059>061-070>073-LAZ001>004-010>012-017-018-OKZ077-
TXZ096-097-108>112-124>126-136>138-149>153-165>167-111645-
SEVIER-HOWARD-LITTLE RIVER-HEMPSTEAD-NEVADA-MILLER-LAFAYETTE-
COLUMBIA-UNION AR-CADDO-BOSSIER-WEBSTER-CLAIBORNE-DE SOTO-
RED RIVER-BIENVILLE-SABINE LA-NATCHITOCHES-MCCURTAIN-BOWIE-
FRANKLIN-TITUS-CAMP-MORRIS-CASS-WOOD-UPSHUR-MARION-SMITH-GREGG-
HARRISON-CHEROKEE-RUSK-PANOLA-NACOGDOCHES-SHELBY-ANGELINA-
SAN AUGUSTINE-SABINE TX-
1145 AM CDT SAT SEP 10 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL
ARKANSAS...SOUTHWEST ARKANSAS...NORTHWEST LOUISIANA...SOUTHEAST
OKLAHOMA...EAST TEXAS AND NORTHEAST TEXAS.

.DAY ONE...THIS AFTERNOON AND TONIGHT...

ENHANCED FIRE DANGER WILL CONTINUE TODAY WITH RELATIVE HUMIDITY
VALUES RANGING FROM 15 TO 25 PERCENT ACROSS PARTS OF THE AREA.
NORTH WINDS AROUND 10 MPH ARE EXPECTED. WILDFIRES COULD STILL BE
DIFFICULT TO CONTAIN GIVEN THE CRITICAL RELATIVE HUMIDITY VALUES
AND ABUNDANCE OF DRY FUELS. IN ADDITION...SMOKE FROM ONGOING
WILDFIRES WILL REDUCE VISIBILITIES IN PLACES AND DEGRADE AIR
QUALITY...ESPECIALLY ACROSS PARTS OF EAST TEXAS.
OTHERWISE...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY...

ENHANCED FIRE DANGER CONDITIONS WILL LIKELY CONTINUE THROUGH THE
WEEKEND. VISIBILITY AND HEALTH ISSUES WITH LINGERING SMOKE MAY HANG
ON FOR SEVERAL MORE DAYS...EVEN IF WILDFIRES AREA ABLE TO
CONTAINED OR EXTINGUISHED.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED THIS AFTERNOON OR TONIGHT.

LAZ005-006-013-014-019>022-111645-
LINCOLN-UNION LA-JACKSON-OUACHITA-WINN-GRANT-CALDWELL-LA SALLE-
1145 AM CDT SAT SEP 10 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL
LOUISIANA.

.DAY ONE...THIS AFTERNOON AND TONIGHT...

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY...

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED THIS AFTERNOON OR TONIGHT.

05

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

21 excessive heat. Local standard time, as filed.

Excessive Heat, Angelina

When: September 11, 12:00 AM CST to September 14, 11:59 PM CST
Where: Angelina forecast zone
Reported by: Emergency Manager
Coordinates: 31.255, -94.612 (the zone’s center; the record gives no point)

Excessive Heat, Bowie

When: September 11, 12:00 AM CST to September 14, 11:59 PM CST
Where: Bowie forecast zone
Reported by: Emergency Manager
Coordinates: 33.446, -94.423 (the zone’s center; the record gives no point)

Excessive Heat, Camp

When: September 11, 12:00 AM CST to September 14, 11:59 PM CST
Where: Camp forecast zone
Reported by: Emergency Manager
Coordinates: 32.973, -94.978 (the zone’s center; the record gives no point)

Excessive Heat, Cass

When: September 11, 12:00 AM CST to September 14, 11:59 PM CST
Where: Cass forecast zone
Reported by: Emergency Manager
Coordinates: 33.078, -94.344 (the zone’s center; the record gives no point)

Excessive Heat, Cherokee

When: September 11, 12:00 AM CST to September 14, 11:59 PM CST
Where: Cherokee forecast zone
Reported by: Emergency Manager
Coordinates: 31.837, -95.165 (the zone’s center; the record gives no point)

Excessive Heat, Franklin

When: September 11, 12:00 AM CST to September 14, 11:59 PM CST
Where: Franklin forecast zone
Reported by: Emergency Manager
Coordinates: 33.176, -95.218 (the zone’s center; the record gives no point)

Excessive Heat, Gregg

When: September 11, 12:00 AM CST to September 14, 11:59 PM CST
Where: Gregg forecast zone
Reported by: Emergency Manager
Coordinates: 32.481, -94.817 (the zone’s center; the record gives no point)

Excessive Heat, Harrison

When: September 11, 12:00 AM CST to September 14, 11:59 PM CST
Where: Harrison forecast zone
Reported by: Emergency Manager
Coordinates: 32.548, -94.371 (the zone’s center; the record gives no point)

Excessive Heat, Marion

When: September 11, 12:00 AM CST to September 14, 11:59 PM CST
Where: Marion forecast zone
Reported by: Emergency Manager
Coordinates: 32.798, -94.357 (the zone’s center; the record gives no point)

Excessive Heat, Morris

When: September 11, 12:00 AM CST to September 14, 11:59 PM CST
Where: Morris forecast zone
Reported by: Emergency Manager
Coordinates: 33.114, -94.733 (the zone’s center; the record gives no point)

Excessive Heat, Nacogdoches

When: September 11, 12:00 AM CST to September 14, 11:59 PM CST
Where: Nacogdoches forecast zone
Reported by: Emergency Manager
Coordinates: 31.616, -94.616 (the zone’s center; the record gives no point)

Excessive Heat, Panola

When: September 11, 12:00 AM CST to September 14, 11:59 PM CST
Where: Panola forecast zone
Reported by: Emergency Manager
Coordinates: 32.162, -94.306 (the zone’s center; the record gives no point)

Excessive Heat, Red River

When: September 11, 12:00 AM CST to September 14, 11:59 PM CST
Where: Red River forecast zone
Reported by: Emergency Manager
Coordinates: 33.621, -95.050 (the zone’s center; the record gives no point)

Excessive Heat, Rusk

When: September 11, 12:00 AM CST to September 14, 11:59 PM CST
Where: Rusk forecast zone
Reported by: Emergency Manager
Coordinates: 32.108, -94.762 (the zone’s center; the record gives no point)

Excessive Heat, Sabine

When: September 11, 12:00 AM CST to September 14, 11:59 PM CST
Where: Sabine forecast zone
Reported by: Emergency Manager
Coordinates: 31.343, -93.852 (the zone’s center; the record gives no point)

Excessive Heat, San Augustine

When: September 11, 12:00 AM CST to September 14, 11:59 PM CST
Where: San Augustine forecast zone
Reported by: Emergency Manager
Coordinates: 31.394, -94.168 (the zone’s center; the record gives no point)

Excessive Heat, Shelby

When: September 11, 12:00 AM CST to September 14, 11:59 PM CST
Where: Shelby forecast zone
Reported by: Emergency Manager
Coordinates: 31.792, -94.145 (the zone’s center; the record gives no point)

Excessive Heat, Smith

When: September 11, 12:00 AM CST to September 14, 11:59 PM CST
Where: Smith forecast zone
Reported by: Emergency Manager
Coordinates: 32.375, -95.269 (the zone’s center; the record gives no point)

Excessive Heat, Titus

When: September 11, 12:00 AM CST to September 14, 11:59 PM CST
Where: Titus forecast zone
Reported by: Emergency Manager
Coordinates: 33.217, -94.966 (the zone’s center; the record gives no point)

Excessive Heat, Upshur

When: September 11, 12:00 AM CST to September 14, 11:59 PM CST
Where: Upshur forecast zone
Reported by: Emergency Manager
Coordinates: 32.736, -94.941 (the zone’s center; the record gives no point)

Excessive Heat, Wood

When: September 11, 12:00 AM CST to September 14, 11:59 PM CST
Where: Wood forecast zone
Reported by: Emergency Manager
Coordinates: 32.786, -95.382 (the zone’s center; the record gives no point)

What these are

Excessive Heat: Heat at or above the local excessive heat warning criteria, or heat that caused deaths.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

Every storm in Texas in 2011 Every state in 2011 This day in weather history Warnings in Texas, September 2011

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 339163, 339164, 339165, 339166, 339167, 339168, 339169, 339170, 339171, 339172, 339173, 339174, 339175, 339176, 339177, 339178, 339179, 339180, 339181, 339182, 339183.