Alert archive / Tennessee / Flash Flood Warnings in 2011

Flash Flood Warning 130, NWS Memphis, TN

June 25, 2011Gibson County, Tennessee

NWS Memphis, TN issued this flash flood warning at Jun 25, 2011, 7:27 AM CDT for Gibson County, Tennessee. It was in force for 68 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jun 25, 2011, 7:27 AM CDT (12:27 UTC)
Expired: Jun 25, 2011, 8:35 AM CDT
In force: 68 min
Issued by: NWS Memphis, TN
Area: Storm-based polygon
Flood severity: None

County Gibson County, TN

The radar

The Paducah radar (KPAH), 108 km from the middle of the area, began a volume at 12:30 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.

What was reported inside it

Time	Report	Where	Remark
Jun 25, 7:35 AM CDT	FLASH FLOOD	3 Nne Bradford, TN	WATER CROSSING HIGHWAY 45E ALONG THE OBION RIVER.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this flash flood warning; the first came 8 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 0.5 hours before the alert went out and 174 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2769 J/kg
Mixed-layer CIN: -70 J/kg
Mixed-layer LCL: 776 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: -43 m²/s²
0-3 km storm-relative helicity: -41 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -2.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

574 
WGUS54 KMEG 251227
FFWMEG
TNC053-251530-
/O.NEW.KMEG.FF.W.0130.110625T1227Z-110625T1530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
727 AM CDT SAT JUN 25 2011

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHEASTERN GIBSON COUNTY IN NORTHWEST TENNESSEE...

* UNTIL 1030 AM CDT

* AT 727 AM CDT...DOPPLER RADAR ESTIMATES 1 TO 3 INCHES OF RAINFALL
  HAS OCCURRED OVER THE PAST HOUR.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO            
  BRADFORD... AND RURAL AREAS OF NORTHEASTERN GIBSON COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

.STAY TUNED TO THIS BROADCAST FOR THE LATEST UPDATES AND INFORMATION.
TO REPORT FLASH FLOODING ONLY...CALL 1 800 4 3 2 0 8 7 5.

&&

LAT...LON 3614 8884 3612 8882 3611 8875 3607 8869
      3603 8870 3597 8876 3610 8900 3618 8894

$$

1 follow-up statement

358 
WGUS74 KMEG 251335
FFSMEG

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
835 AM CDT SAT JUN 25 2011

TNC053-251345-
/O.CAN.KMEG.FF.W.0130.000000T0000Z-110625T1530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GIBSON TN-
835 AM CDT SAT JUN 25 2011

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR NORTHEASTERN GIBSON
COUNTY...

THE HEAVY RAINFALL WHICH PROMPTED THE WARNING HAS DIMINISHED ACROSS
THE WARNED AREA. THUS THE FLASH FLOOD WARNING HAS BEEN CANCELLED.

.STAY TUNED TO THIS BROADCAST FOR THE LATEST UPDATES AND INFORMATION.
TO REPORT SEVERE WEATHER ONLY...CALL 1 800 4 3 2 0 8 7 5.

LAT...LON 3614 8884 3612 8882 3611 8875 3607 8869
      3603 8870 3597 8876 3610 8900 3618 8894

$$

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 Memphis, TN wrote its last area forecast discussion before this flash flood warning went out at Jun 25, 6:07 AM CDT, 1 hour 20 minutes earlier.

Area forecast discussion, Jun 25, 6:07 AM CDT, 1 hour 20 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MEMPHIS TN
607 AM CDT SAT JUN 25 2011

.PREV DISCUSSION... /ISSUED 454 AM CDT SAT JUN 25 2011/

AT 4 AM...TEMPERATURES ACROSS THE REGION RANGE FROM THE MID 60S
TO THE MID 70S. SHOWERS AND THUNDERSTORMS HAVE DEVELOPED ALONG A
WARM FRONT THAT STRETCHES FROM NORTHERN MISSOURI TO NORTHERN
ALABAMA. THESE STORMS WILL GENERALLY MOVE TO THE SOUTHEAST ALONG
THE FRONT. A LARGE COMPLEX OF SHOWERS AND THUNDERSTORMS HAD
DEVELOPED ACROSS SOUTHERN NEBRASKA AND SHOULD ALSO MOVE TO THE
SOUTHEAST.

THE SHOWERS AND THUNDERSTORMS THAT HAVE DEVELOPED ACROSS SOUTHERN
MISSOURI AND WESTERN KENTUCKY THIS MORNING WILL MOVE INTO NORTHERN
PORTIONS OF THE MIDSOUTH. ADDITIONAL SHOWERS AND THUNDERSTORMS
ARE EXPECTED TO DEVELOP LATER THIS AFTERNOON ACROSS THE REGION. A
FEW STORMS COULD BECOME STRONG TO SEVERE WITH DAMAGING WINDS AND
LARGE HAIL AS THE MAIN THREATS. CLOUDS AND POSSIBLE RAINFALL
SHOULD KEEP TEMPERATURES DOWN...ESPECIALLY ACROSS NORTHWESTERN
TENNESSEE. TEMPERATURES WILL WARM INTO THE 90S IN AREAS THAT SEE
MORE SUN AND LITTLE OR NO RAINFALL.

THE MCS OVER SOUTHERN NEBRASKA WILL NEED TO BE WATCHED CLOSELY AS
REMNANT OUTFLOW BOUNDARIES FROM THAT COMPLEX COULD SPARK
ADDITIONAL THUNDERSTORMS LATER THIS EVENING THROUGH TOMORROW
ACROSS MAINLY NORTHERN PORTIONS OF THE MIDSOUTH. A FEW OF THESE
STORMS COULD BE STRONG AS WELL.

A STRONG RIDGE OF HIGH PRESSURE WILL BUILD INTO THE REGION BY
SUNDAY NIGHT. THIS WILL CAUSE THE THUNDERSTORMS THAT DEVELOP
ACROSS THE PLAINS SUNDAY AFTERNOON TO STAY TO THE NORTH AND MOVE
OVER THE OHIO VALLEY INSTEAD OF TAKING MORE OF A SOUTHEASTERLY
PATH INTO THE MIDSOUTH. TEMPERATURES WILL HEAT UP ON MONDAY...WITH
HIGH TEMPERATURES IN THE MID TO UPPER 90S ACROSS THE REGION. HEAT
ADVISORIES MAY BE NEEDED MONDAY THROUGH FRIDAY AS HEAT INDEX
VALUES MAY REACH OR EXCEED 105 DEGREES.

MODELS ARE INDICATING THAT A SMALL SHORTWAVE TROUGH WILL MOVE
ACROSS THE MIDDLE MISSISSIPPI VALLEY ON TUESDAY. THIS WILL BRING A
CHANCE OF PRECIPITATION AND TEMPORARY RELIEF FROM THE HEAT TO
NORTHERN SECTIONS OF THE MIDSOUTH. THE CENTER OF THE RIDGE OF HIGH
PRESSURE WILL MOVE INTO EASTERN OKLAHOMA AND WESTERN ARKANSAS ON
WEDNESDAY...CUTTING OFF CHANCES FOR RAIN ACROSS MOST OF THE
MIDSOUTH. DEPENDING ON THE POSITION AND STRENGTH OF THE HIGH
PRESSURE SYSTEM...NORTHERN MISSISSIPPI COULD HAVE A SLIGHT CHANCE
OF AFTERNOON SHOWERS AND THUNDERSTORMS ON WEDNESDAY THROUGH
FRIDAY. HOWEVER...CONFIDENCE WAS TOO LOW TO PUT INTO THE FORECAST
FOR THURSDAY AND FRIDAY.

RRH

&&

.AVIATION...

12Z TAF SET

MAINLY VFR CONDITIONS EXPECTED OVER NEXT 24 HOURS. TSRAS
CONTINUING TO DEVELOP OVER WESTERN KENTUCKY AND SOUTHEAST
MISSOURI. SOME OF THESE STORMS MAY DRIFT SOUTHEAST ALONG A STALLED
FRONT. KMKL SHOULD BE THE ONLY TAF SITE POSSIBLY AFFECTED. STORMS
WILL GENERALLY DIE OUT OVER THE NEXT COUPLE OF HOURS. LEFTOVER
CONVECTIVE BOUNDARIES AND THE STALLED FRONT WILL BE THE FOCUS OF
REDEVELOPMENT THIS AFTERNOON. AGAIN KMKL WILL BE LIKELY BE THE
ONLY TAF SITE AFFECTED. WILL CONTINUE MENTION OF VCTS OTHERWISE
WILL JUST MENTION CB AT OTHER TAF SITES. SW WINDS OF 8-10 KTS WILL
OCCUR LATER THIS MORNING INTO THIS AFTERNOON. WINDS WILL BECOME
LIGHT OVERNIGHT.

KRM

&&

&&

.PRELIMINARY POINT TEMPS/POPS...
MEM  93  76  96  77 /  30  10  20  10
MKL  90  71  93  73 /  30  20  30  10
JBR  92  73  96  75 /  30  20  20  10
TUP  92  73  95  74 /  30  10  20   0

&&

.MEG WATCHES/WARNINGS/ADVISORIES...
AR...NONE.
MO...NONE.
MS...NONE.
TN...NONE.
&&

Hazardous weather outlook, Jun 25, 4:21 AM CDT, 3 hours 6 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MEMPHIS TN
421 AM CDT SAT JUN 25 2011

ARZ008-009-017-018-026>028-035-036-048-049-058-MOZ113-115-
MSZ001>017-020>024-TNZ001>004-019>021-048>055-088>092-261130-
ALCORN-BENTON MS-CALHOUN-CARROLL-CHESTER-CHICKASAW-CLAY-COAHOMA-
CRAIGHEAD-CRITTENDEN-CROCKETT-CROSS-DESOTO-DECATUR-DUNKLIN-DYER-
FAYETTE-GIBSON-GREENE-HARDEMAN-HARDIN-HAYWOOD-HENDERSON-HENRY-
ITAWAMBA-LAFAYETTE-LAKE-LAUDERDALE-LAWRENCE-LEE AR-LEE MS-MADISON-
MARSHALL-MCNAIRY-MISSISSIPPI-MONROE-OBION-PANOLA-PEMISCOT-
PHILLIPS-POINSETT-PONTOTOC-PRENTISS-QUITMAN-RANDOLPH-SHELBY-
ST. FRANCIS-TALLAHATCHIE-TATE-TIPPAH-TIPTON-TISHOMINGO-TUNICA-
UNION-WEAKLEY-YALOBUSHA-
421 AM CDT SAT JUN 25 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST ARKANSAS...
THE MISSOURI BOOTHEEL...NORTH MISSISSIPPI...AND WEST TENNESSEE.

.DAY ONE...TODAY AND TONIGHT

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ALONG AND NORTH OF
A LINE FROM BOONEVILLE MISSISSIPPI TO HELENA ARKANSAS. THE MAIN
THREATS WITH THESE STORMS WILL BE DAMAGING WINDS AND LARGE HAIL.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

HEAT INDEX VALUES MAY REACH OR EXCEED 105 DEGREES FROM MONDAY
THROUGH FRIDAY.

A FEW STRONG STORMS ARE POSSIBLE ON SUNDAY ALONG AND NORTHEAST OF
A LINE FROM OXFORD MISSISSIPPI TO JONESBORO ARKANSAS.

.SPOTTER INFORMATION STATEMENT...

RRH

In the hours before

Special weather statement, Jun 25, 5:57 AM CDT, 1 hour 30 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
557 AM CDT SAT JUN 25 2011

TNZ001-002-251130-
LAKE TN-OBION TN-
557 AM CDT SAT JUN 25 2011

...THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY UNTIL 630 AM CDT FOR...

  LAKE COUNTY IN NORTHWEST TENNESSEE...
  WESTERN OBION COUNTY IN NORTHWEST TENNESSEE...

A STRONG THUNDERSTORM PRODUCING HAIL UP TO DIME SIZE AND WINDS TO
40 MPH WAS LOCATED 4 MILES WEST OF TIPTONVILLE AT 557 AM  CDT...
MOVING EAST AT 25 MPH.

PEOPLE IN LAKE AND OBION COUNTIES...INCLUDING LOCATIONS NEAR REELFOOT
LAKE STATE PARK...SHOULD MONITOR THIS STORM CLOSELY. THIS SIGNIFICANT
WEATHER ALERT ALSO INCLUDES REELFOOT LAKE.

&&

LAT...LON 3623 8920 3624 8960 3628 8955 3631 8961
      3635 8962 3635 8953 3640 8953 3646 8956
      3647 8953 3651 8953 3650 8949 3646 8949
      3645 8946 3651 8941 3651 8913
TIME...MOT...LOC 1057Z 273DEG 21KT 3639 8953

Special weather statement, Jun 25, 6:16 AM CDT, 1 hour 11 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
616 AM CDT SAT JUN 25 2011

TNZ003-020-251145-
GIBSON TN-WEAKLEY TN-
616 AM CDT SAT JUN 25 2011

...THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY UNTIL 645 AM CDT FOR...

  NORTHEASTERN GIBSON COUNTY IN NORTHWEST TENNESSEE...
  SOUTHERN WEAKLEY COUNTY IN NORTHWEST TENNESSEE...

A STRONG THUNDERSTORM PRODUCING PEA TO DIME SIZE HAIL AND WINDS TO
40 MPH WAS LOCATED 5 MILES SOUTHWEST OF SHARON AT 616 AM CDT...
MOVING SOUTHEAST AT 30 MPH.

PEOPLE IN GIBSON AND WEAKLEY COUNTIES SHOULD MONITOR THIS STORM
CLOSELY.

&&

LAT...LON 3616 8862 3606 8868 3606 8869 3605 8869
      3600 8872 3613 8901 3620 8897 3621 8896
      3622 8896 3630 8892
TIME...MOT...LOC 1116Z 294DEG 25KT 3617 8887

Local storm report, Jun 25, 6:42 AM CDT, 45 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEMPHIS TN
642 AM CDT SAT JUN 25 2011

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

0620 AM     HAIL             SAMBURG                 36.38N 89.35W
06/25/2011  E1.00 INCH       OBION              TN   PUBLIC

            QUARTER SIZE HAIL COVERING THE GROUND IN THE TOWN OF
            SAMBURG.

&&

RRH

Special weather statement, Jun 25, 6:49 AM CDT, 38 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
649 AM CDT SAT JUN 25 2011

TNZ002-003-251230-
WEAKLEY TN-OBION TN-
649 AM CDT SAT JUN 25 2011

...THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY UNTIL 730 AM CDT FOR...

  NORTHEASTERN OBION COUNTY IN NORTHWEST TENNESSEE...
  NORTHWESTERN WEAKLEY COUNTY IN NORTHWEST TENNESSEE...

A STRONG THUNDERSTORM PRODUCING HAIL UP TO PENNY SIZE AND WINDS TO
50 MPH WAS LOCATED 6 MILES WEST OF UNION CITY AT 649 AM CDT...MOVING
EAST AT 25 MPH.

PEOPLE IN OBION AND WEAKLEY COUNTIES...INCLUDING LOCATIONS NEAR
MARTIN AND UNION CITY...SHOULD MONITOR THIS STORM CLOSELY.

&&

LAT...LON 3650 8882 3650 8881 3634 8884 3643 8922
      3651 8921
TIME...MOT...LOC 1149Z 292DEG 22KT 3644 8913

Local storm report, Jun 25, 6:54 AM CDT, 33 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEMPHIS TN
654 AM CDT SAT JUN 25 2011

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

0653 AM     HAIL             TROY                    36.34N 89.16W
06/25/2011  E1.00 INCH       OBION              TN   LAW ENFORCEMENT

            NICKEL TO QUARTER SIZE HAIL IN THE TOWN OF TROY.

&&

RRH

Special weather statement, Jun 25, 6:55 AM CDT, 32 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
655 AM CDT SAT JUN 25 2011

TNZ003-020-251230-
GIBSON TN-WEAKLEY TN-
655 AM CDT SAT JUN 25 2011

...THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY UNTIL 730 AM CDT FOR...

  NORTHEASTERN GIBSON COUNTY IN NORTHWEST TENNESSEE...
  SOUTHWESTERN WEAKLEY COUNTY IN NORTHWEST TENNESSEE...

A STRONG THUNDERSTORM PRODUCING PENNY SIZE HAIL AND WINDS TO 50 MPH
WAS LOCATED OVER BRADFORD AT 655 AM CDT...MOVING EAST AT 20 MPH.

PEOPLE IN GIBSON AND WEAKLEY COUNTIES SHOULD MONITOR THIS STORM
CLOSELY.

&&

LAT...LON 3614 8863 3606 8867 3606 8869 3603 8869
      3596 8873 3608 8901 3623 8896
TIME...MOT...LOC 1155Z 288DEG 16KT 3609 8877

The office that day

Everything else NWS Memphis, TN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 25, 5:09 AM CDT	Special Weather Statement	MEG	Weakley	36 min
Jun 25, 5:43 AM CDT	Special Weather Statement	MEG	Weakley	47 min
Jun 25, 5:54 AM CDT	Special Weather Statement	MEG	Henry	36 min
Jun 25, 5:57 AM CDT	Special Weather Statement	MEG	Lake	33 min
Jun 25, 6:08 AM CDT	Severe Thunderstorm Warning	MEG	Lake, Obion	52 min
Jun 25, 6:16 AM CDT	Special Weather Statement	MEG	Weakley	29 min
Jun 25, 6:45 AM CDT	Severe Thunderstorm Warning	MEG	Gibson, Obion, Weakley	45 min
Jun 25, 6:49 AM CDT	Special Weather Statement	MEG	Obion	41 min
Jun 25, 6:55 AM CDT	Special Weather Statement	MEG	Gibson	35 min
Jun 25, 6:59 AM CDT	Severe Thunderstorm Warning	MEG	Carroll, Gibson, Weakley	46 min
Jun 25, 7:30 AM CDT	Special Weather Statement	MEG	Weakley	30 min
Jun 25, 7:40 AM CDT	Special Weather Statement	MEG	Henry	35 min
Jun 25, 7:46 AM CDT	Special Weather Statement	MEG	Carroll	44 min
Jun 25, 10:40 AM CDT	Special Weather Statement	MEG	Henry	65 min

Nearby

Flash Flood Warnings in Tennessee, 2011 Every flash flood warning in 2011

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.