Alert archive / Arkansas / Flash Flood Warnings in 2010

Flash Flood Warning 39, NWS Memphis, TN

May 1, 20105 counties in Arkansas; 5 counties in Tennessee

NWS Memphis, TN issued this flash flood warning at May 1, 2010, 2:21 AM CDT for 5 counties in Arkansas; 5 counties in Tennessee. It was in force for 12 hr. 40 reports 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
May 1, 2010, 2:21 AM CDT (07:21 UTC)
Expired
May 1, 2010, 2:15 PM CDT
In force
12 hr
Issued by
NWS Memphis, TN
Area
Storm-based polygon
Emergency
Flash flood emergency
Flood severity
None

Counties Crittenden County, AR, Cross County, AR, Mississippi County, AR, Poinsett County, AR, St. Francis County, AR, Fayette County, TN, Haywood County, TN, Lauderdale County, TN, Shelby County, TN, Tipton County, TN

The radar

The Memphis radar (KNQA), 32 km from the middle of the area, began a volume at 07:21 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

TimeReportWhereRemark
May 1, 4:45 AM CDTHEAVY RAIN 3.822 E Munford, TN3.82 INCHES IN ONE HOUR.
May 1, 4:59 AM CDTFLASH FLOODAtoka, TNWIDESPREAD FLOODING IN ATOKA. 3.82 INCHES OF RAIN FELL FROM 4 AM CDT TO 459 AM CDT.
May 1, 5:15 AM CDTFLASH FLOOD3 N Bartlett, TNMINOR FLOODING. 1.55 INCHES FROM 445 AM TO 515 AM CDT.
May 1, 5:15 AM CDTFLASH FLOOD9 Ssw Millington, TN*** 1 FATAL *** FLASH FLOODING IN THE RALEIGH AREA. VEHICLE BECAME DISABLED IN FLOOD WATERS RESULTING IN ONE FATALITY.
May 1, 5:25 AM CDTFLASH FLOOD1 E Downtown Memphis, TNWATER ON MCLEMORE AVE REACHING WHEEL WELLS ON CARS.
May 1, 5:25 AM CDTFLASH FLOOD1 Nw Bartlett, TNSEVERAL LOCATIONS ALONG AUSTIN PEAY HWY IN RALEIGH AREA FLOODED. 14 INCHES OF WATER AT AUSTIN PEAY AND JAMES ROAD ALSO IN FRONT OF BROADMOOR BAPTIST ON AUSTIN PEAY HWY.ROADS ALMOST IMPASSABLE. AUSTIN PEAY AND COVINGTON PIKE AREA FLOODED.
May 1, 5:30 AM CDTFLASH FLOOD1 S Atoka, TN2 FEET OF WATER ON HWY 51 JUST SOUTH OF ATOKA.
May 1, 5:45 AM CDTFLASH FLOOD8 S Bartlett, TNWELLS STATION AND MACON ROADS HIGH WATER UP TO WHEEL WELLS
May 1, 5:45 AM CDTFLASH FLOODBartlett, TNWATER UP TO WINDSHIELDS ON ENGLISH HILL ROAD NEAR BILLY MAHER ROAD.THIS HAPPENED IN HOURS WORTH OF RAINFALL.
May 1, 5:50 AM CDTFLASH FLOOD4 E Downtown Memphis, TN2 FEET OF WATER AROUND OVERPASS AT WALNUT GROVE ROAD WHERE IT TURNS INTO UNION AVENUE.
May 1, 5:55 AM CDTFLASH FLOODMason, TNNUMEROUS ROADS IN TOWN FLOODED WITH 6 TO 10 INCHES WATER. ALSO HWY 59 SOUTH FLOODED. ALL IMPASSABLE.
May 1, 5:55 AM CDTHEAVY RAIN 2.795 E Munford, TN2.79 INCHES IN LAST TWO HOURS
May 1, 6:00 AM CDTFLASH FLOOD2 W Bartlett, TNCOLEMAN ROAD AND STAGE ROAD FLOODED
May 1, 6:00 AM CDTFLASH FLOOD3 Ne Bartlett, TNWHESTBROOK ROAD FLOODED AT LEAST 6 INCHES OF WATER.
May 1, 6:00 AM CDTFLASH FLOODDowntown Memphis, TNLEWIS STREET FLOODED WATER UP TO DOORWAYS
May 1, 6:00 AM CDTFLASH FLOODW Bartlett, TNAREAS AROUND YALE AND COVINGTON PIKE FLOODED... LYNCHBURG ST...SCRIVNER DRIVE. WATER UP TO MAILBOXES AND DOORWAYS. VEHICLES ALMOST COMPLETELY SUBMERGED.
May 1, 6:50 AM CDTFLASH FLOODMason, TNTRACY AND MEADE LAKE ROADS FLOODED
May 1, 8:00 AM CDTFLASH FLOODMillington, TNSLEDGE RD. NEARLY IMPASSABLE. HOUSES FLOODED ALL AROUND MILLINGTON AND FRAYSER.
May 1, 8:00 AM CDTFLASH FLOODMunford, TNRETIRED NWS EMPLOYEE MEASURED 10.45 INCHES OF RAIN
May 1, 8:19 AM CDTFLASH FLOOD4 E Downtown Memphis, TNUNION AVENUE AROUND AVALON ST FLOODED
May 1, 8:25 AM CDTFLASH FLOODBartlett, TNFLOODING UP TO WHEEL WELLS ON VEHICLES AT ST. ELMO RD.
May 1, 8:38 AM CDTFLASH FLOODMason, TNCOUNTY WIDE SEVERE FLOODING OVERWHELMING EMERGENCY AGENCIES.NUMEROUS CARS COMPLETLY SUBMERGED.MOST ROADS IMPASSABLE.
May 1, 8:40 AM CDTFLASH FLOOD4 N Bartlett, TN8.81 INCHES OF RAIN SO FAR WITH 1.60 INCHES IN LAST 30 MINUTES.
May 1, 8:54 AM CDTFLASH FLOOD3 N Bartlett, TN9.3 INCHES MEASURED IN RAIN GAUGE. BROWNSVILLE SUBDIVISION...2 BLOCKS EAST OF NEW BROWNSVILLE ROAD...OR 1 MILE NORTH OF YALE ROAD
May 1, 9:13 AM CDTFLASH FLOOD3 Nw Bartlett, TNHOUSES ON HOPSON ROAD FLOODED.
May 1, 9:19 AM CDTFLASH FLOOD3 Nw Bartlett, TNROADS AND HOUSES FLOODED 3 TO 4 FEET DEEP ON RIDGEMONT AND NEW ALLEN ROADS
May 1, 9:30 AM CDTFLASH FLOODStanton, TNFIRE DEPARTMENT RESCUED WOMAN FROM HOUSE.
May 1, 9:40 AM CDTFLASH FLOODBartlett, TNWATER UP TO THE FRONT DOORS OF CARS AT COVINGTON PK AND BLUEFIELD RD.
May 1, 9:47 AM CDTFLASH FLOODAtoka, TNBRIDGE OUT AT MEAD LAKE RD. NEAREST ATOKA.
May 1, 9:50 AM CDTFLASH FLOODCovington, TNNORTH BOUND LANES OF HWY 51 FLOODED SOUTH OF COVINGTON.
May 1, 10:00 AM CDTFLASH FLOOD5 Ne Mason, TNRIVER OUT OF BANKS ON HWY 59 BETWEEN JACK POND RD. AND PICKENS STORE RD. TWO CARS SUBMERGED ON THE BRIDGE BLOCKING HWY.
May 1, 10:10 AM CDTFLASH FLOOD1 S Munford, TNHWY 51 NORTHBOUND LANES FLOODED. TRAFFIC DIVERTED TO SOUTHBOUND LANES.
May 1, 10:15 AM CDTFLASH FLOOD8 E Brighton, TNHOUSE AND BARN FLOODED WITH 4-5 FT. OF WATER. A FORD EXPLORER IN THE DRIVEWAY IS COMPLETELY SUBMERGED WITH ONLY LUGGAGE RACK VISIBLE. HWY 14 IS IMPASSABLE.
May 1, 10:30 AM CDTFLASH FLOOD8 E Brighton, TNHWY 59 IS UNDER 4 TO 5 FT OF WATER JUST NORTH OF HWY 14.
May 1, 11:20 AM CDTFLASH FLOODMason, TNHWY 70 IN MASON FLOODED.
May 1, 11:20 AM CDTFLASH FLOODStanton, TNHWY 179 FLOODED.
May 1, 11:45 AM CDTFLASH FLOOD3 N Germantown, TNHOUSTON LEVEE RD. AT PALM CREEK FLOODED.
May 1, 12:00 PM CDTFLASH FLOOD4 W Oakland, TNROADS COVERED WITH 6 TO 8 INCHES IN TOWN OF HICKORY WITHE.
May 1, 12:00 PM CDTFLASH FLOODMunford, TN11.60 INCHES OF RAIN MEASURED SO FAR AS OF NOON.
May 1, 12:46 PM CDTFLASH FLOODMillington, TNRALIEGH-MILLINGTON RD BRIDGE OVER LOOSAHATCHIE CLOSED.

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 38 storm reports to this flash flood warning; the first came 157 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 00:00Z, 7.4 hours before the alert went out and 65 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, Little Rock, AR at 00:00Z on 2010-05-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3037 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, Little Rock, AR at 00:00Z on 2010-05-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 188 square meters per square second.1939587897Sfc1 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
3037 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
525 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
188 m²/s²
0-3 km storm-relative helicity
226 m²/s²
Significant tornado parameter
4.6
Supercell composite
15.8

Open this sounding in Storm Lab

The text

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

672 
WGUS54 KMEG 010722
FFWMEG
ARC035-037-093-111-123-TNC047-075-097-157-167-011315-
/O.NEW.KMEG.FF.W.0039.100501T0722Z-100501T1315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
221 AM CDT SAT MAY 1 2010

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CRITTENDEN COUNTY IN EASTERN ARKANSAS...
  CROSS COUNTY IN EASTERN ARKANSAS...
  SOUTHERN MISSISSIPPI COUNTY IN EASTERN ARKANSAS...
  SOUTHEASTERN POINSETT COUNTY IN EASTERN ARKANSAS...
  NORTHEASTERN ST. FRANCIS COUNTY IN EASTERN ARKANSAS...
  NORTHWESTERN FAYETTE COUNTY IN SOUTHWEST TENNESSEE...
  SOUTHWESTERN HAYWOOD COUNTY IN SOUTHWEST TENNESSEE...
  LAUDERDALE COUNTY IN SOUTHWEST TENNESSEE...
  SHELBY COUNTY IN SOUTHWEST TENNESSEE...
  TIPTON COUNTY IN SOUTHWEST TENNESSEE...

* UNTIL 815 AM CDT

* AT 221 AM CDT...DOPPLER RADAR ESTIMATES 1 TO 3 INCHES OF RAINFALL
  HAS OCCURRED OVER THE PAST HOUR. SHOWERS AND THUNDERSTORMS WILL
  PRODUCE AN ADDITIONAL 1 TO 3 INCHES OF RAIN OVER THE NEXT HOUR.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO EARLE...
  FORREST CITY...KEISER...LEPANTO...LUXORA...MADISON...MARION...
  MARKED TREE...OSCEOLA...PARKIN...TYRONZA...WEST MEMPHIS...
  WILSON...MEMPHIS AND WYNNE.

 THIS WARNING ALSO INCLUDES AREAS NEAR BRANDYWINE LAKE...CHISHOLM
  LAKE...CORONEE LAKE...LAKE MCKELLAR...OPEN LAKE...ROBCO LAKE...SUNK
  LAKE...THE CHUTE AND WAPANOCCA LAKE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

.BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

.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 3539 9100 3593 8966 3550 8918 3502 8970
      3498 9083

$$


TLSJR
6 follow-up statements
306 
WGUS74 KMEG 010808
FFSMEG

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
307 AM CDT SAT MAY 1 2010

ARC035-037-093-111-123-TNC047-075-097-157-167-011315-
/O.CON.KMEG.FF.W.0039.000000T0000Z-100501T1315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CROSS AR-MISSISSIPPI AR-ST. FRANCIS AR-CRITTENDEN AR-POINSETT AR-
LAUDERDALE TN-FAYETTE TN-SHELBY TN-HAYWOOD TN-TIPTON TN-
307 AM CDT SAT MAY 1 2010

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 815 AM CDT FOR
TIPTON...SOUTHWESTERN HAYWOOD...SHELBY...NORTHWESTERN FAYETTE...
LAUDERDALE...SOUTHEASTERN POINSETT...CRITTENDEN...NORTHEASTERN ST.
FRANCIS...SOUTHERN MISSISSIPPI AND CROSS COUNTIES...

AT 307 AM CDT...DOPPLER RADAR ESTIMATES 1 TO 3 INCHES OF RAINFALL HAS
OCCURRED OVER THE PAST HOUR. SHOWERS AND THUNDERSTORMS WILL PRODUCE
AN ADDITIONAL 1 TO 3 INCHES OF RAIN OVER THE NEXT HOUR.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO 
EARLE...FORREST CITY...KEISER...MARION...MARKED TREE... 
OSCEOLA...PARKIN...TYRONZA...WEST MEMPHIS...WILSON...WYNNE... 
BARTLETT...COLLIERVILLE...COVINGTON...GERM ANTOWN...MIDTOWN 
MEMPHIS...MILLINGTON...RIPLEY...CORDOVA...AND VILLAGE CREEK STATE 
PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

.BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

.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 3539 9100 3593 8966 3550 8918 3502 8970
      3498 9083

$$


TLSJR
989 
WGUS74 KMEG 011012
FFSMEG

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
510 AM CDT SAT MAY 1 2010

ARC035-037-093-111-123-TNC047-075-097-157-167-011315-
/O.CON.KMEG.FF.W.0039.000000T0000Z-100501T1315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CROSS AR-MISSISSIPPI AR-ST. FRANCIS AR-CRITTENDEN AR-POINSETT AR-
LAUDERDALE TN-FAYETTE TN-SHELBY TN-HAYWOOD TN-TIPTON TN-
510 AM CDT SAT MAY 1 2010

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 815 AM CDT FOR
TIPTON...SOUTHWESTERN HAYWOOD...SHELBY...NORTHWESTERN FAYETTE...
LAUDERDALE...SOUTHEASTERN POINSETT...CRITTENDEN...NORTHEASTERN ST.
FRANCIS...SOUTHERN MISSISSIPPI AND CROSS COUNTIES...

AT 510 AM CDT...THE PUBLIC REPORTED 3.8 INCHES OF RAIN IN ATOKA IN 
TIPTON COUNTY TENNESSEE.  SHOWERS AND THUNDERSTORMS WILL PRODUCE 
AN ADDITIONAL 2 TO 4 INCHES OF RAIN OVER THE NEXT 3 HOURS.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO EARLE...
FORREST CITY...KEISER...LEPANTO...LUXORA...MADISON...MARION...MARKED
TREE...OSCEOLA...PARKIN...TYRONZA...WEST MEMPHIS...WILSON...WYNNE...
BARTLETT...COLLIERVILLE...COVINGTON...GERMANTOWN...MIDTOWN MEMPHIS...
MILLINGTON...RIPLEY...CORDOVA...FORT PILLOW STATE PARK...MEEMAN
SHELBY FOREST STATE PARK AND VILLAGE CREEK STATE PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

.FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS
OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED
BRIDGES...DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING
STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP
TO HIGHER GROUND.

.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 3539 9100 3593 8966 3550 8918 3502 8970
      3498 9083

$$
869 
WGUS74 KMEG 011042
FFSMEG

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
538 AM CDT SAT MAY 1 2010

ARC035-037-093-111-123-TNC047-075-097-157-167-011315-
/O.CON.KMEG.FF.W.0039.000000T0000Z-100501T1315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CROSS AR-MISSISSIPPI AR-ST. FRANCIS AR-CRITTENDEN AR-POINSETT AR-
LAUDERDALE TN-FAYETTE TN-SHELBY TN-HAYWOOD TN-TIPTON TN-
538 AM CDT SAT MAY 1 2010

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 815 AM CDT FOR
TIPTON...SOUTHWESTERN HAYWOOD...SHELBY...NORTHWESTERN FAYETTE...
LAUDERDALE...SOUTHEASTERN POINSETT...CRITTENDEN...NORTHEASTERN ST.
FRANCIS...SOUTHERN MISSISSIPPI AND CROSS COUNTIES...

AT 538 AM CDT...THE PUBLIC REPORTED IN SHELBY COUNTY THE ROAD AT 
AUSTIN PEAY HIGHWAY...NEAR BROADMORE BAPTIST CHURCH AND AREAS ALONG 
COVINGTON PIKE ROAD AND JAMES ROAD ARE BECOMING IMPASSIBLE.  2 TO 4 
INCHES OF RAINFALL HAS OCCURRED OVER THE PAST HOUR IN THE MEMPHIS 
METRO AREA. THIS WILL LEAD TO FLASH FLOODING. SHOWERS AND 
THUNDERSTORMS WILL PRODUCE AN ADDITIONAL 2 TO 4 INCHES OF RAIN OVER 
THE NEXT 2 HOURS.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO EARLE...
FORREST CITY...KEISER...LEPANTO...LUXORA...MADISON...MARION...MARKED
TREE...OSCEOLA...PARKIN...TYRONZA...WEST MEMPHIS...WILSON...WYNNE...
BARTLETT...COLLIERVILLE...COVINGTON...GERMANTOWN...MIDTOWN MEMPHIS...
MILLINGTON...RIPLEY...CORDOVA...FORT PILLOW STATE PARK...MEEMAN
SHELBY FOREST STATE PARK AND VILLAGE CREEK STATE PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

.FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS
OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED
BRIDGES...DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING
STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP
TO HIGHER GROUND.

.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 3539 9100 3593 8966 3550 8918 3502 8970
      3498 9083

$$
625 
WGUS74 KMEG 011152
FFSMEG

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
647 AM CDT SAT MAY 1 2010

ARC035-037-093-111-123-TNC047-075-097-157-167-011315-
/O.CON.KMEG.FF.W.0039.000000T0000Z-100501T1315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CROSS AR-MISSISSIPPI AR-ST. FRANCIS AR-CRITTENDEN AR-POINSETT AR-
LAUDERDALE TN-FAYETTE TN-SHELBY TN-HAYWOOD TN-TIPTON TN-
647 AM CDT SAT MAY 1 2010

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 815 AM CDT FOR
TIPTON...SOUTHWESTERN HAYWOOD...SHELBY...NORTHWESTERN FAYETTE...
LAUDERDALE...SOUTHEASTERN POINSETT...CRITTENDEN...NORTHEASTERN ST.
FRANCIS...SOUTHERN MISSISSIPPI AND CROSS COUNTIES...

AT 647 AM CDT...THE PUBLIC HAS REPORTED SIGNIFICANT FLASH FLOODING 
IN NORTHERN SHELBY AND SOUTHERN TIPTON COUNTIES.  WATER IS OVER MANY 
ROADS IN THAT AREA AND HOMES ARE REPORTED FLOODED.  4 TO 6 INCHES OF 
RAINFALL HAS OCCURRED AMD SHOWERS AND THUNDERSTORMS WILL PRODUCE AN 
ADDITIONAL 2 TO 4 INCHES OF RAIN OVER THE NEXT HOUR...ESPECIALLY IN 
SOUTHERN TIPTON AND NORTHERN SHELBY COUNTIES.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO EARLE...
FORREST CITY...KEISER...LEPANTO...LUXORA...MADISON...MARION...MARKED
TREE...OSCEOLA...PARKIN...TYRONZA...WEST MEMPHIS...WILSON...WYNNE...
BARTLETT...COLLIERVILLE...COVINGTON...GERMANTOWN...MIDTOWN MEMPHIS...
MILLINGTON...RIPLEY...CORDOVA...FORT PILLOW STATE PARK...MEEMAN
SHELBY FOREST STATE PARK AND VILLAGE CREEK STATE PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

.FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS
OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED
BRIDGES...DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING
STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP
TO HIGHER GROUND.

.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 3539 9100 3593 8966 3550 8918 3502 8970
      3498 9083

$$
920 
WGUS54 KMEG 011215
FFWMEG
ARC035-037-093-111-123-TNC047-075-097-157-167-011915-
/O.EXT.KMEG.FF.W.0039.000000T0000Z-100501T1915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
715 AM CDT SAT MAY 1 2010

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  CRITTENDEN COUNTY IN EASTERN ARKANSAS...
  CROSS COUNTY IN EASTERN ARKANSAS...
  SOUTHERN MISSISSIPPI COUNTY IN EASTERN ARKANSAS...
  SOUTHEASTERN POINSETT COUNTY IN EASTERN ARKANSAS...
  NORTHEASTERN ST. FRANCIS COUNTY IN EASTERN ARKANSAS...
  NORTHWESTERN FAYETTE COUNTY IN SOUTHWEST TENNESSEE...
  SOUTHWESTERN HAYWOOD COUNTY IN SOUTHWEST TENNESSEE...
  LAUDERDALE COUNTY IN SOUTHWEST TENNESSEE...
  SHELBY COUNTY IN SOUTHWEST TENNESSEE...
  TIPTON COUNTY IN SOUTHWEST TENNESSEE...

* UNTIL 215 PM CDT SATURDAY

* AT 715 AM CDT...DOPPLER RADAR ESTIMATES 4 TO 6 INCHES OF RAINFALL
  HAS OCCURRED OVER THE PAST 3 HOURS. SHOWERS AND THUNDERSTORMS WILL
  PRODUCE AN ADDITIONAL 2 TO 4 INCHES OF RAIN OVER THE NEXT 2 HOURS.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO EARLE...
  FORREST CITY...KEISER...LEPANTO...LUXORA...MADISON...MARION...
  MARKED TREE...OSCEOLA...PARKIN...TYRONZA...WEST MEMPHIS...WILSON
  AND WYNNE.

 THIS WARNING ALSO INCLUDES AREAS NEAR BRANDYWINE LAKE...CHISHOLM
  LAKE...CORONEE LAKE...LAKE MCKELLAR...OPEN LAKE...ROBCO LAKE...SUNK
  LAKE...THE CHUTE AND WAPANOCCA LAKE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

.FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS
OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED
BRIDGES...DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING
STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP
TO HIGHER GROUND.

.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 3539 9100 3593 8966 3550 8918 3502 8970
      3498 9083

$$
272 
WGUS74 KMEG 011356
FFSMEG

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
852 AM CDT SAT MAY 1 2010

ARC035-037-093-111-123-TNC047-075-097-157-167-011915-
/O.CON.KMEG.FF.W.0039.000000T0000Z-100501T1915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CROSS AR-MISSISSIPPI AR-ST. FRANCIS AR-CRITTENDEN AR-POINSETT AR-
LAUDERDALE TN-FAYETTE TN-SHELBY TN-HAYWOOD TN-TIPTON TN-
852 AM CDT SAT MAY 1 2010

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 215 PM CDT FOR
TIPTON...SOUTHWESTERN HAYWOOD...SHELBY...NORTHWESTERN FAYETTE...
LAUDERDALE...SOUTHEASTERN POINSETT...CRITTENDEN...NORTHEASTERN ST.
FRANCIS...SOUTHERN MISSISSIPPI AND CROSS COUNTIES...

...FLASH FLOOD EMERGENCY FOR NORTHERN SHELBY AND TIPTON COUNTIES...

AT 852 AM CDT...SPOTTER REPORTS INDICATE 8 TO 10 INCHES OF RAINFALL 
HAS OCCURRED IN TIPTON AND NORTHERN SHELBY COUNTIES OVER THE PAST 6 
HOURS. WATER IS OVER MANY ROADS AND HOMES ARE FLOODED.  RESCUES HAVE 
BEEN REPORTED IN TIPTON COUNTY. SHOWERS AND THUNDERSTORMS WILL 
PRODUCE AN ADDITIONAL 1 TO 3 INCHES OF RAIN OVER THE NEXT 2 HOURS.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO EARLE...
FORREST CITY...KEISER...LEPANTO...LUXORA...MADISON...MARION...MARKED
TREE...OSCEOLA...PARKIN...TYRONZA...WEST MEMPHIS...WILSON...WYNNE...
BARTLETT...COLLIERVILLE...COVINGTON...GERMANTOWN...MIDTOWN MEMPHIS...
MILLINGTON...RIPLEY...CORDOVA...FORT PILLOW STATE PARK...MEEMAN
SHELBY FOREST STATE PARK AND VILLAGE CREEK STATE PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

.DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.

.FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS
OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED
BRIDGES...DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING
STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP
TO HIGHER GROUND.

.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 3539 9100 3593 8966 3550 8918 3502 8970
      3498 9083

$$

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 May 1, 12:26 AM CDT, 1 hour 55 minutes earlier.

Area forecast discussion, May 1, 12:26 AM CDT, 1 hour 55 minutes before
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE MEMPHIS TN
1226 AM CDT SAT MAY 1 2010

.UPDATE...
UPDATED FOR AVIATION.

&&

.PREV DISCUSSION... /ISSUED 923 PM CDT FRI APR 30 2010/

DISCUSSION...

QUITE A BUSY NIGHT ALREADY WITH SEVERAL TORNADIC STORMS OVER IN
CENTRAL ARKANSAS. NEW TORNADO WATCH HAS JUST BEEN ISSUED WHICH
COVERS OUR COUNTIES WEST OF THE MISSISSIPPI RIVER UNTIL 4 AM. SOME
OTHER THUNDERSTORMS HAVE DEVELOPED OVER PORTIONS OF NORTHEAST
MISSISSIPPI. THUNDERSTORMS WILL CONTINUE TO CREEP SLOWLY IN INTO
PARTS OF EAST ARKANSAS DURING THE REMAINDER OF THE EVENING. HAVE
JUST UPDATED ZONES WITH NEW TORNADO WATCH WITH NO OTHER CHANGES
NEEDED AT THIS TIME.

ARS

PREV DISCUSSION... /ISSUED 735 PM CDT FRI APR 30 2010/

DISCUSSION... /ISSUED 333 PM CDT FRI APR 30 2010/

DISCUSSION...FORECAST FOCUS ON COMPLEX HEAVY RAIN/SEVERE WEATHER
EVENT THIS WEEKEND...THEN ON A BIG WARM UP NEXT WEEK.

SHORT TERM...TONIGHT THROUGH SUNDAY NIGHT.

AT 1930Z...RADAR INDICATED SCATTERED THUNDERSTORMS STARTING TO
DEVELOP ACROSS NORTHERN MISSISSIPPI IN RESPONSE TO DEEP MOISTURE
ADVECTION AND ISENTROPIC LIFT. THIS TREND WILL CONTINUE THROUGH
THE REST OF THE LATE AFTERNOON AND EARLY EVENING. SOME OF THESE
STORMS MAY BECOME SEVERE...BUT THE THREAT SHOULD BE ISOLATED AWAY
FROM THE MAIN FRONT. MEANWHILE ACROSS EASTERN OKLAHOMA AND WESTERN
ARKANSAS...MORE NUMEROUS THUNDERSTORMS HAVE BEEN DEVELOPING ALONG
THE COLD FRONT. THIS FRONT WILL PUSH EAST SLOWLY THIS EVENING AND
OVERNIGHT. THE BEST FORCING TONIGHT WILL BE CONFINED TO NEAR THIS
FRONT...WHICH BEGINS TO STALL LATE. THEREFORE...EXPECT THE BEST
THREAT FOR HEAVY RAIN TO REMAIN ALONG AND WEST OF THE RIVER
TONIGHT. PUSHED BACK THE START OF THE FFA EAST OF HERE TO 12Z
SATURDAY AND LEFT IT AS IS WEST.

AS THE MAIN BATCH OF THUNDERSTORMS ASSOCIATED WITH THE FRONT
PUSHES EAST...IT WILL CONTINUE TO ENCOUNTER FAVORABLE CONDITIONS
TO MAINTAIN THEIR SEVERITY AT LEAST TO THE MISSISSIPPI RIVER. IN
FACT...AS I'M WRITING THIS A MODERATE RISK HAS BEEN POSTED FOR
PORTIONS OF EASTERN ARKANSAS. LATE TONIGHT THE EASTWARD
PROGRESSION OF THE STORMS WILL END AND THE ATMOSPHERE WILL TEND TO
BE WORKED OVER. THUS...THE SEVERE THREAT SHOULD DIMINISH TOWARD
DAWN.

SATURDAY COULD BE INTERESTING AS A SURFACE LOW TRACKS ACROSS
WESTERN ARKANSAS SATURDAY AFTERNOON. THE COLD FRONT WILL PUSH
NORTH SLIGHTLY DURING THE AFTERNOON AND MODELS SHOW A LULL OF
PRECIP COVERAGE AROUND 18Z. FORECAST SOUNDINGS INDICATE NEARLY
2000 J/KG OF CAPE OVER MUCH OF THE AREA BY EARLY AFTERNOON DESPITE
LOW CLOUD COVER. IN ADDITION...BECAUSE OF THE SURFACE LOW
TRACK...WINDS WILL BE BACKED A BIT NEAR THE SURFACE. VERY LOW LCLS
WILL ALSO BE IN PLACE...AND WITH MORE 0-1 KM CAPE THAN LAST
WEEKEND. AS THE LOW EJECTS NORTHEASTWARD IN THE AFTERNOON...IT
APPEARS SEVERE THUNDERSTORMS WILL ERUPT FROM SOUTHWEST TO
NORTHEAST WITH ALL MODES OF SEVERE WEATHER POSSIBLE...INCLUDING
TORNADOES. THIS WILL NEED TO BE WATCHED CLOSELY. ADDED SEVERE BACK
TO THE GRIDS FOR SATURDAY AND SATURDAY EVENING.

THE STORMS THAT DEVELOP SATURDAY WILL TEND TO BECOME LINEARLY
FORCED ALONG THE SLOWLY MOVING COLD FRONT BY SATURDAY EVENING.
SATURDAY NIGHT THROUGH SUNDAY EVENING SHOULD BE THE BEST TIME FOR
TORRENTIAL RAINFALL. TRAINING THUNDERSTORMS AND PW/S AROUND 2
INCHES SHOULD ALLOW FOR TROPICAL RAINS AND FLASH FLOODING.

IF ENOUGH INSTABILITY CAN DEVELOP AHEAD OF THE LINE SUNDAY...MORE
SEVERE WEATHER WILL BE POSSIBLE. THIS IS A BIT MORE CONDITIONAL...
SO WILL NOT INCLUDE SEVERE IN THE GRIDS ATTM.

MODELS DIFFER ON HOW QUICKLY THE COLD FRONT EXITS THE AREA SUNDAY
EVENING. THE 12Z NAM IS THE SLOWEST AND IT NOW DOESN/T LEAVE THE
TN RIVER VALLEY UNTIL 12Z MONDAY. THE GFS AND ECMWF ARE SLIGHTLY
QUICKER. OVERALL...I WOULD NOT BE SURPRISED TO SEE THE NAM VERIFY
GIVEN THE PARALLEL FLOW ALONG THE FRONT...BUT FOR NOW I WON/T MAKE
TOO MANY DRASTIC CHANGES. THE 12Z NAM WOULD SPELL 7 TO 9 INCHES
ACROSS WESTERN TENNESSEE.

WILL KEEP THE PREVIOUSLY FORECASTED RAINFALL TOTALS OF 5 TO 8
INCHES OVER THE EAST AND 3 TO 5 INCHES WEST. LOCALLY HIGHER
AMOUNTS WILL OF COURSE BE POSSIBLE.

LONG TERM...MONDAY THROUGH NEXT FRIDAY.

HIGH PRESSURE WILL BUILD OVER THE LOWER MISSISSIPPI RIVER VALLEY
FOR MUCH OF NEXT WEEK. THE UPPER LEVEL DISTURBANCE THAT GAVE A
CHANCE FOR THUNDERSTORMS MONDAY NOW LOOKS NON-EXISTENT AND THE
SOUNDINGS LOOK MUCH TOO DRY TO SUPPORT ANY CAPE. THUS...REMOVED
RAIN CHANCES MONDAY AND TUESDAY.

THICKNESSES AND H5 HEIGHTS WILL BUILD THROUGH LATE NEXT WEEK.
MODELS DIFFER ON THE TIMING OF A POSSIBLE COLD FRONT LATE WEEK
WHICH WILL HAVE IMPLICATIONS ON TEMPERATURES THURSDAY AND/OR
FRIDAY. HOWEVER...THE GFS AND ECMWF ARE IN PRETTY GOOD AGREEMENT
WITH BUILDING 85 TO 90 DEGREE TEMPS OVER THE MIDSOUTH FOR MUCH OF
NEXT WEEK. DEPENDING UPON IF THE WET GROUND CAN ZAP SOME OF THE
INCOMING SOLAR RADIATION FROM BEING CONVERTED TO HEAT...WE COULD
SEE SOME LOWER 90S WEDNESDAY OR THURSDAY AS 925 MB TEMPS RISE INTO
THE +23C TO +24C RANGE.

BORGHOFF

&&

.AVIATION...
06Z TAFS

BROKEN TO SOLID LINE OF SEVERE THUNDERSTORMS EXTENDED FROM THE MO
BOOTHEEL TO JUST NORTH OF KAWM...TO KLIT. MOST INTENSE CELLS WERE
NORTHWEST OF KMEM...MOVING NORTHEAST. THIS LINE WILL NOT LIKELY
DIRECTLY IMPACT KMEM UNTIL AFTER 08Z...POSSIBLY LATER IF THE RUC
MODEL IS CORRECT. BUT ADDITIONAL THUNDERSTORMS WILL CONTINUE TO
DEVELOP IN THE UNSTABLE AIR OUT AHEAD OF THE MAIN CONVECTIVE LINE.
THESE DISCRETE CELLS WILL BE THE PRIMARY FORECAST CONCERN FOR KMEM
THROUGH 07Z. AIRPORT WEATHER WARNINGS MAY BE REQUIRED FOR FOR SOME
OF THE MORE INTENSE CELLS MOVING UP FROM THE SOUTHWEST.

FOR THE OUTBOUND PUSH... EXPECT SIMILAR CONDITIONS.

PWB

&&

.PRELIMINARY POINT TEMPS/POPS...
MEM  70  74  58  83 / 100 100  70  10
MKL  69  72  51  82 / 100 100  90  10
JBR  66  75  55  81 / 100  70  30  10
TUP  72  78  54  84 /  70 100 100  10

&&

.MEG WATCHES/WARNINGS/ADVISORIES...
AR...FLASH FLOOD WATCH THROUGH SUNDAY EVENING FOR CLAY-CRAIGHEAD-
     CRITTENDEN-CROSS-GREENE-LAWRENCE-LEE AR-MISSISSIPPI-
     PHILLIPS-POINSETT-RANDOLPH-ST. FRANCIS.

MO...FLASH FLOOD WATCH THROUGH SUNDAY EVENING FOR DUNKLIN-PEMISCOT.

MS...FLASH FLOOD WATCH THROUGH SUNDAY EVENING FOR COAHOMA-DESOTO-
     TUNICA.

     FLASH FLOOD WATCH FROM 7 AM CDT THIS MORNING THROUGH LATE SUNDAY
     NIGHT FOR ALCORN-BENTON MS-CALHOUN-CHICKASAW-ITAWAMBA-
     LAFAYETTE-LEE MS-MARSHALL-MONROE-PANOLA-PONTOTOC-PRENTISS-
     QUITMAN-TALLAHATCHIE-TATE-TIPPAH-TISHOMINGO-UNION-YALOBUSHA.

TN...FLASH FLOOD WATCH THROUGH SUNDAY EVENING FOR DYER-LAKE-
     LAUDERDALE-OBION-SHELBY-TIPTON.

     FLASH FLOOD WATCH FROM 7 AM CDT THIS MORNING THROUGH LATE SUNDAY
     NIGHT FOR CARROLL-CHESTER-CROCKETT-DECATUR-FAYETTE-GIBSON-
     HARDEMAN-HARDIN-HAYWOOD-HENDERSON-HENRY-MADISON-MCNAIRY-
     WEAKLEY.

&&
Hazardous weather outlook, Apr 30, 8:17 PM CDT, 6 hours 4 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE MEMPHIS TN
817 PM CDT FRI APR 30 2010

ARZ008-009-017-018-026>028-035-036-048-049-058-MOZ113-115-
MSZ001>017-020>024-TNZ001>004-019>021-048>055-088>092-020330-
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-
817 PM CDT FRI APR 30 2010

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

.DAY ONE...TONIGHT

THERE IS A HIGH RISK OF SEVERE WEATHER TONIGHT ACROSS PORTIONS OF
NORTHEAST ARKANSAS WEST OF A LINE FROM WYNNE TO CORNING. THERE IS
A MODERATE RISK OF SEVERE WEATHER TONIGHT ACROSS THE REMAINDER OF EAST
ARKANSAS AND THE MISSOURI BOOTHEEL. THERE IS A SLIGHT RISK OF
SEVERE WEATHER ACROSS MUCH OF WEST TENNESSEE AND NORTH MISSISSIPPI.
THUNDERSTORMS WILL APPROACH FROM THE WEST TONIGHT ALONG A FRONT...AND
AFFECT PRIMARILY AREAS ALONG AND WEST OF THE MISSISSIPPI RIVER.
SOME STRONG AND LONG-LIVED TORNADOES ARE POSSIBLE IN THE HIGH RISK
AREA. LARGE HAIL...DAMAGING WINDS AND TORNADOES WILL BE POSSIBLE...ESPECIALLY
IN THE MODERATE RISK AREA.

A FLASH FLOOD WATCH IS IN EFFECT WEST OF A LINE FROM UNION CITY TO
CLARKSDALE MISSISSIPPI TONIGHT. THE HEAVIEST RAINS WILL LIKELY OCCUR
OVER THESE AREAS TONIGHT.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER ALL OF THE
MIDSOUTH SATURDAY...AND OVER WEST TENNESSEE AND NORTH MISSISSIPPI ON
SUNDAY.  LARGE HAIL...DAMAGING WINDS...AND TORNADOES ARE
POSSIBLE...ESPECIALLY ON SATURDAY.

A FLASH FLOOD WATCH GOES INTO EFFECT FOR THE REMAINDER OF THE
MIDSOUTH SATURDAY AND CONTINUES THROUGH SUNDAY. THE MOST INTENSE
RAINFALL WILL LIKELY OCCUR ALONG A SLOW EASTWARD MOVING COLD FRONT.
AREAS ALONG AND EAST OF THE MISSISSIPPI RIVER WILL LIKELY BE AT THE
HIGHEST RISK OF FLASH FLOODING DURING THE DAY SUNDAY. CONSULT THE
FLASH FLOOD WATCH PRODUCT FOR ADDITIONAL INFORMATION.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL BE NEEDED TONIGHT THROUGH SUNDAY AFTERNOON.

In the hours before

Local storm report, May 1, 12:25 AM CDT, 1 hour 56 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE MEMPHIS TN
1225 AM CDT SAT MAY 01 2010

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

0915 PM     HAIL             2 W PICKWICK DAM        35.05N 88.29W
04/30/2010  E1.00 INCH       HARDIN             TN   PUBLIC

1105 PM     TORNADO          2 E SUCCESS             36.45N 90.69W
04/30/2010                   CLAY               AR   LAW ENFORCEMENT

            TORNADO SPOTTED BY SHERIFF DEPUTY ALONG HWY 328.

1117 PM     HAIL             10 WSW JONESBORO        35.77N 90.85W
04/30/2010  E0.75 INCH       CRAIGHEAD          AR   TRAINED SPOTTER

            HAIL IN CASH, ARKANSAS.

1125 PM     TSTM WND DMG     5 NNE WEINER            35.69N 90.87W
04/30/2010                   POINSETT           AR   PUBLIC

            1 BUILDING COLLAPSED...POWER LINES DOWN AND SOME SMALL
            TREES DOWN NEAR US 49 AND PUNKIN CENTER ROAD.

1140 PM     TSTM WND DMG     11 N PARAGOULD          36.22N 90.51W
04/30/2010                   GREENE             AR   TRAINED SPOTTER

            AT LEAST ONE TREE DOWN.

&&

TLSJR
Local storm report, May 1, 12:46 AM CDT, 1 hour 35 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE MEMPHIS TN
1246 AM CDT SAT MAY 01 2010

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

0915 PM     HAIL             2 W PICKWICK DAM        35.05N 88.29W
04/30/2010  E1.00 INCH       HARDIN             TN   PUBLIC

1105 PM     TORNADO          2 E SUCCESS             36.45N 90.69W
04/30/2010                   CLAY               AR   LAW ENFORCEMENT

            TORNADO SPOTTED BY SHERIFF DEPUTY ALONG HWY 328.

1117 PM     HAIL             10 WSW JONESBORO        35.77N 90.85W
04/30/2010  E0.75 INCH       CRAIGHEAD          AR   TRAINED SPOTTER

            HAIL IN CASH, ARKANSAS.

1125 PM     TSTM WND DMG     5 NNE WEINER            35.69N 90.87W
04/30/2010                   POINSETT           AR   PUBLIC

            1 BUILDING COLLAPSED...POWER LINES DOWN AND SOME SMALL
            TREES DOWN NEAR US 49 AND PUNKIN CENTER ROAD.

1140 PM     TSTM WND DMG     11 N PARAGOULD          36.22N 90.51W
04/30/2010                   GREENE             AR   TRAINED SPOTTER

            AT LEAST ONE TREE DOWN.

1155 PM     TSTM WND DMG     3 S CARAWAY             35.71N 90.33W
04/30/2010                   CRAIGHEAD          AR   FIRE DEPT/RESCUE

            TREES DAMAGED FROM US 135 TO MISSISSIPPI COUNTY LINE NEAR
            CR 884. TREE ON HOUSE AT CR 885 ALSO.

1225 AM     HAIL             MANILA                  35.88N 90.16W
05/01/2010  E1.00 INCH       MISSISSIPPI        AR   TRAINED SPOTTER

1225 AM     TSTM WND DMG     MANILA                  35.88N 90.16W
05/01/2010                   MISSISSIPPI        AR   TRAINED SPOTTER

            SHED BLOWN DOWNA AND POWER LINES DOWN. ALSO SOME POWER
            LINES TOWN SOUTH OF MANILLA.

&&

TLSJR
Local storm report, May 1, 12:54 AM CDT, 1 hour 27 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE MEMPHIS TN
1254 AM CDT SAT MAY 01 2010

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

0915 PM     HAIL             2 W PICKWICK DAM        35.05N 88.29W
04/30/2010  E1.00 INCH       HARDIN             TN   PUBLIC

1105 PM     TORNADO          2 E SUCCESS             36.45N 90.69W
04/30/2010                   CLAY               AR   LAW ENFORCEMENT

            TORNADO SPOTTED BY SHERIFF DEPUTY ALONG HWY 328.

1117 PM     HAIL             10 WSW JONESBORO        35.77N 90.85W
04/30/2010  E0.75 INCH       CRAIGHEAD          AR   TRAINED SPOTTER

            HAIL IN CASH, ARKANSAS.

1125 PM     TSTM WND DMG     5 NNE WEINER            35.69N 90.87W
04/30/2010                   POINSETT           AR   PUBLIC

            1 BUILDING COLLAPSED...POWER LINES DOWN AND SOME SMALL
            TREES DOWN NEAR US 49 AND PUNKIN CENTER ROAD.

1140 PM     TSTM WND DMG     11 N PARAGOULD          36.22N 90.51W
04/30/2010                   GREENE             AR   TRAINED SPOTTER

            AT LEAST ONE TREE DOWN.

1155 PM     TSTM WND DMG     3 S CARAWAY             35.71N 90.33W
04/30/2010                   CRAIGHEAD          AR   FIRE DEPT/RESCUE

            TREES DAMAGED FROM US 135 TO MISSISSIPPI COUNTY LINE NEAR
            CR 884. TREE ON HOUSE AT CR 885 ALSO.

1225 AM     TSTM WND DMG     MANILA                  35.88N 90.16W
05/01/2010                   MISSISSIPPI        AR   TRAINED SPOTTER

            SHED BLOWN DOWN AND POWER LINES DOWN. ALSO SOME POWER
            LINES TOWN SOUTH OF MANILLA.

1225 AM     HAIL             MANILA                  35.88N 90.16W
05/01/2010  E1.00 INCH       MISSISSIPPI        AR   TRAINED SPOTTER

&&

TLSJR
Local storm report, May 1, 1:49 AM CDT, 32 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE MEMPHIS TN
149 AM CDT SAT MAY 01 2010

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

0915 PM     HAIL             2 W PICKWICK DAM        35.05N 88.29W
04/30/2010  E1.00 INCH       HARDIN             TN   PUBLIC

1105 PM     TORNADO          2 E SUCCESS             36.45N 90.69W
04/30/2010                   CLAY               AR   LAW ENFORCEMENT

            TORNADO SPOTTED BY SHERIFF DEPUTY ALONG HWY 328.

1117 PM     HAIL             10 WSW JONESBORO        35.77N 90.85W
04/30/2010  E0.75 INCH       CRAIGHEAD          AR   TRAINED SPOTTER

            HAIL IN CASH, ARKANSAS.

1125 PM     TSTM WND DMG     5 NNE WEINER            35.69N 90.87W
04/30/2010                   POINSETT           AR   PUBLIC

            1 BUILDING COLLAPSED...POWER LINES DOWN AND SOME SMALL
            TREES DOWN NEAR US 49 AND PUNKIN CENTER ROAD.

1140 PM     TSTM WND DMG     11 N PARAGOULD          36.22N 90.51W
04/30/2010                   GREENE             AR   TRAINED SPOTTER

            AT LEAST ONE TREE DOWN.

1155 PM     TSTM WND DMG     3 S CARAWAY             35.71N 90.33W
04/30/2010                   CRAIGHEAD          AR   FIRE DEPT/RESCUE

            TREES DAMAGED FROM US 135 TO MISSISSIPPI COUNTY LINE NEAR
            CR 884. TREE ON HOUSE AT CR 885 ALSO.

1225 AM     HAIL             MANILA                  35.88N 90.16W
05/01/2010  E1.00 INCH       MISSISSIPPI        AR   TRAINED SPOTTER

1225 AM     TSTM WND DMG     MANILA                  35.88N 90.16W
05/01/2010                   MISSISSIPPI        AR   TRAINED SPOTTER

            SHED BLOWN DOWN AND POWER LINES DOWN. ALSO SOME POWER
            LINES TOWN SOUTH OF MANILLA.

0142 AM     HAIL             STANTON                 35.46N 89.40W
05/01/2010  E1.75 INCH       HAYWOOD            TN   AMATEUR RADIO

&&

TLSJR
Local storm report, May 1, 2:05 AM CDT, 16 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE MEMPHIS TN
205 AM CDT SAT MAY 01 2010

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

0915 PM     HAIL             2 W PICKWICK DAM        35.05N 88.29W
04/30/2010  E1.00 INCH       HARDIN             TN   PUBLIC

1105 PM     TORNADO          2 E SUCCESS             36.45N 90.69W
04/30/2010                   CLAY               AR   LAW ENFORCEMENT

            TORNADO SPOTTED BY SHERIFF DEPUTY ALONG HWY 328.

1117 PM     HAIL             10 WSW JONESBORO        35.77N 90.85W
04/30/2010  E0.75 INCH       CRAIGHEAD          AR   TRAINED SPOTTER

            HAIL IN CASH, ARKANSAS.

1125 PM     TSTM WND DMG     5 NNE WEINER            35.69N 90.87W
04/30/2010                   POINSETT           AR   PUBLIC

            1 BUILDING COLLAPSED...POWER LINES DOWN AND SOME SMALL
            TREES DOWN NEAR US 49 AND PUNKIN CENTER ROAD.

1140 PM     TSTM WND DMG     11 N PARAGOULD          36.22N 90.51W
04/30/2010                   GREENE             AR   TRAINED SPOTTER

            AT LEAST ONE TREE DOWN.

1155 PM     TSTM WND DMG     3 S CARAWAY             35.71N 90.33W
04/30/2010                   CRAIGHEAD          AR   FIRE DEPT/RESCUE

            TREES DAMAGED FROM US 135 TO MISSISSIPPI COUNTY LINE NEAR
            CR 884. TREE ON HOUSE AT CR 885 ALSO.

1225 AM     HAIL             MANILA                  35.88N 90.16W
05/01/2010  E1.00 INCH       MISSISSIPPI        AR   TRAINED SPOTTER

1225 AM     TSTM WND DMG     MANILA                  35.88N 90.16W
05/01/2010                   MISSISSIPPI        AR   TRAINED SPOTTER

            SHED BLOWN DOWN AND POWER LINES DOWN. ALSO SOME POWER
            LINES TOWN SOUTH OF MANILLA.

0142 AM     HAIL             STANTON                 35.46N 89.40W
05/01/2010  E1.75 INCH       HAYWOOD            TN   AMATEUR RADIO

0155 AM     HAIL             BROWNSVILLE             35.59N 89.25W
05/01/2010  E1.00 INCH       HAYWOOD            TN   PUBLIC

&&

TLSJR
Local storm report, May 1, 2:10 AM CDT, 11 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE MEMPHIS TN
210 AM CDT SAT MAY 01 2010

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

0915 PM     HAIL             2 W PICKWICK DAM        35.05N 88.29W
04/30/2010  E1.00 INCH       HARDIN             TN   PUBLIC

1105 PM     TORNADO          2 E SUCCESS             36.45N 90.69W
04/30/2010                   CLAY               AR   LAW ENFORCEMENT

            TORNADO SPOTTED BY SHERIFF DEPUTY ALONG HWY 328.

1117 PM     HAIL             10 WSW JONESBORO        35.77N 90.85W
04/30/2010  E0.75 INCH       CRAIGHEAD          AR   TRAINED SPOTTER

            HAIL IN CASH, ARKANSAS.

1125 PM     TSTM WND DMG     5 NNE WEINER            35.69N 90.87W
04/30/2010                   POINSETT           AR   PUBLIC

            1 BUILDING COLLAPSED...POWER LINES DOWN AND SOME SMALL
            TREES DOWN NEAR US 49 AND PUNKIN CENTER ROAD.

1140 PM     TSTM WND DMG     11 N PARAGOULD          36.22N 90.51W
04/30/2010                   GREENE             AR   TRAINED SPOTTER

            AT LEAST ONE TREE DOWN.

1155 PM     TSTM WND DMG     3 S CARAWAY             35.71N 90.33W
04/30/2010                   CRAIGHEAD          AR   FIRE DEPT/RESCUE

            TREES DAMAGED FROM US 135 TO MISSISSIPPI COUNTY LINE NEAR
            CR 884. TREE ON HOUSE AT CR 885 ALSO.

1225 AM     HAIL             MANILA                  35.88N 90.16W
05/01/2010  E1.00 INCH       MISSISSIPPI        AR   TRAINED SPOTTER

1225 AM     TSTM WND DMG     MANILA                  35.88N 90.16W
05/01/2010                   MISSISSIPPI        AR   TRAINED SPOTTER

            SHED BLOWN DOWN AND POWER LINES DOWN. ALSO SOME POWER
            LINES TOWN SOUTH OF MANILLA.

0142 AM     HAIL             STANTON                 35.46N 89.40W
05/01/2010  E1.75 INCH       HAYWOOD            TN   AMATEUR RADIO

0155 AM     HAIL             BROWNSVILLE             35.59N 89.25W
05/01/2010  E1.00 INCH       HAYWOOD            TN   PUBLIC

0200 AM     TSTM WND GST     MARTIN                  36.34N 88.86W
05/01/2010  M72.00 MPH       WEAKLEY            TN   TRAINED SPOTTER

&&

TLSJR

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 30, 9:46 PM CDTSevere Thunderstorm WarningMEGLawrence, Randolph59 min
Apr 30, 10:03 PM CDTFlash Flood WarningMEGLawrence, Randolph4 hr
Apr 30, 10:05 PM CDTTornado WarningMEGLawrence, Randolph40 min
Apr 30, 10:31 PM CDTTornado WarningMEGClay, Greene, Randolph44 min
Apr 30, 10:43 PM CDTTornado WarningMEGCraighead, Poinsett63 min
Apr 30, 10:58 PM CDTSevere Thunderstorm WarningMEGCross, Poinsett32 min
Apr 30, 11:13 PM CDTSevere Thunderstorm WarningMEGClay, Greene, Lawrence, Randolph47 min
Apr 30, 11:16 PM CDTFlash Flood WarningMEGClay, Craighead, Greene, Lawrence, Poinsett, Randolph4 hr
Apr 30, 11:24 PM CDTTornado WarningMEGPoinsett36 min
Apr 30, 11:27 PM CDTTornado WarningMEGClay, Greene48 min
Apr 30, 11:33 PM CDTSevere Thunderstorm WarningMEGCraighead, Greene, Mississippi, Poinsett57 min
Apr 30, 11:35 PM CDTFlash Flood WarningMEGCross3 hr
Apr 30, 11:37 PM CDTSevere Thunderstorm WarningMEGCross, Poinsett38 min
Apr 30, 11:47 PM CDTSevere Thunderstorm WarningMEGCraighead, Poinsett43 min
Apr 30, 11:51 PM CDTSevere Thunderstorm WarningMEGMississippi, Poinsett39 min
Apr 30, 11:54 PM CDTTornado WarningMEGCraighead, Mississippi, Poinsett51 min
Apr 30, 11:56 PM CDTTornado WarningMEGClay49 min
Apr 30, 11:59 PM CDTTornado WarningMEGCraighead, Greene, Mississippi46 min
May 1, 12:03 AM CDTSevere Thunderstorm WarningMEGCrittenden, Cross, Mississippi, Poinsett, St. Francis42 min
May 1, 12:11 AM CDTSevere Thunderstorm WarningMEGCross, Poinsett, St. Francis49 min
May 1, 12:21 AM CDTSevere Thunderstorm WarningMEGClay, Greene, Mississippi39 min
May 1, 12:21 AM CDTSevere Thunderstorm WarningMEGMississippi39 min
May 1, 12:35 AM CDTFlash Flood WarningMEGClay, Craighead, Greene, Mississippi, Poinsett3 hr
May 1, 12:42 AM CDTSevere Thunderstorm WarningMEGCrittenden, Cross, Mississippi, Poinsett48 min
May 1, 12:50 AM CDTSevere Thunderstorm WarningMEGMississippi40 min
May 1, 12:55 AM CDTSevere Thunderstorm WarningMEGMississippi50 min
May 1, 12:57 AM CDTSevere Thunderstorm WarningMEGCross, St. Francis48 min
May 1, 1:21 AM CDTFlash Flood WarningMEGMississippi3 hr
May 1, 1:26 AM CDTFlash Flood WarningMEGCrittenden3 hr
May 1, 1:28 AM CDTSevere Thunderstorm WarningMEGCrittenden, Cross, Mississippi, Poinsett, St. Francis47 min
May 1, 1:35 AM CDTSevere Thunderstorm WarningMEGCraighead, Cross, Mississippi, Poinsett40 min
May 1, 2:13 AM CDTSevere Thunderstorm WarningMEGCrittenden, Cross, Mississippi, Poinsett47 min
May 1, 2:23 AM CDTSevere Thunderstorm WarningMEGCross, Lee, St. Francis52 min
May 1, 3:00 AM CDTSevere Thunderstorm WarningMEGCrittenden, Cross, Mississippi, Poinsett, St. Francis45 min
May 1, 3:32 AM CDTFlash Flood WarningMEGCross, Lee, Phillips, St. Francis9 hr
May 1, 3:32 AM CDTSevere Thunderstorm WarningMEGCrittenden, Cross, Lee, St. Francis43 min
May 1, 3:43 AM CDTSevere Thunderstorm WarningMEGCrittenden, Mississippi47 min
May 1, 4:06 AM CDTTornado WarningMEGCrittenden, Lee, St. Francis39 min
May 1, 4:29 AM CDTSevere Thunderstorm WarningMEGCrittenden, Mississippi46 min
May 1, 4:47 AM CDTFlash Flood WarningMEGCrittenden, Lee, Phillips, St. Francis12 hr
May 1, 10:14 AM CDTFlash Flood WarningMEGPhillips4 hr
May 1, 11:27 AM CDTRiver Flood WarningMEGClay, Greene9 hr
May 1, 11:27 AM CDTRiver Flood WarningMEGSt. Francis9 hr
May 1, 11:27 AM CDTRiver Flood WarningMEGMississippi, Poinsett9 hr
May 1, 11:27 AM CDTRiver Flood WarningMEGLee, St. Francis9 hr
May 1, 3:10 PM CDTAreal Flood WarningMEGCraighead, Crittenden, Cross, Mississippi, Poinsett, St. Francis24 hr
May 1, 3:18 PM CDTAreal Flood WarningMEGCrittenden, Lee, St. Francis24 hr
May 1, 3:43 PM CDTFlash Flood Warning EmergencyMEGCrittenden2 hr
Apr 30, 8:51 PM CDTSevere Thunderstorm WarningMEGHardin, McNairy29 min
May 1, 1:13 AM CDTTornado WarningMEGLake, Obion26 min
May 1, 1:19 AM CDTSevere Thunderstorm WarningMEGFayette, Haywood, Shelby, Tipton41 min
May 1, 1:25 AM CDTSevere Thunderstorm WarningMEGCarroll, Crockett, Dyer, Gibson, Henry, Lake and 2 more50 min
May 1, 1:39 AM CDTSevere Thunderstorm WarningMEGCrockett, Gibson, Haywood, Lauderdale, Madison, Tipton51 min
May 1, 1:41 AM CDTFlash Flood WarningMEGDyer, Lake, Obion4 hr
May 1, 2:08 AM CDTSevere Thunderstorm WarningMEGCarroll, Crockett, Decatur, Gibson, Henderson, Henry and 3 more52 min
May 1, 2:19 AM CDTSevere Thunderstorm WarningMEGCrockett, Gibson, Haywood, Lauderdale, Madison, Tipton41 min
May 1, 2:47 AM CDTFlash Flood WarningMEGCarroll, Crockett, Dyer, Gibson, Haywood, Henry and 4 more10 hr
May 1, 2:52 AM CDTSevere Thunderstorm WarningMEGChester, Crockett, Fayette, Hardeman, Haywood, Henderson and 4 more53 min
May 1, 2:56 AM CDTSevere Thunderstorm WarningMEGCarroll, Decatur, Gibson, Henderson, Henry, Madison and 1 more49 min
May 1, 3:08 AM CDTTornado WarningMEGCrockett, Fayette, Hardeman, Haywood, Madison, Tipton52 min
May 1, 3:36 AM CDTTornado WarningMEGFayette, Hardeman, Haywood, Madison39 min
May 1, 3:54 AM CDTFlash Flood WarningMEGCarroll, Chester, Gibson, Hardeman, Haywood, Henderson and 2 more12 hr
May 1, 4:02 AM CDTSevere Thunderstorm WarningMEGFayette, Hardeman, Haywood, Lauderdale, Madison, Tipton43 min
May 1, 4:14 AM CDTTornado WarningMEGChester, Crockett, Fayette, Hardeman, Haywood, Madison35 min
May 1, 4:48 AM CDTSevere Thunderstorm WarningMEGCarroll, Chester, Gibson, Henderson, Madison27 min
May 1, 5:10 AM CDTSevere Thunderstorm WarningMEGCarroll, Chester, Decatur, Gibson, Henderson, Madison50 min
May 1, 5:34 AM CDTSevere Thunderstorm WarningMEGFayette, Hardeman, Haywood, Tipton41 min
May 1, 5:35 AM CDTFlash Flood WarningMEGChester, Decatur, Henderson6 hr
May 1, 6:23 AM CDTRiver Flood WarningMEGCrockett, Dyer, Lauderdale14 days
May 1, 7:19 AM CDTFlash Flood WarningMEGFayette, Hardeman, Haywood, Shelby4 hr
May 1, 7:23 AM CDTTornado WarningMEGFayette52 min
May 1, 7:53 AM CDTTornado WarningMEGFayette, Hardeman52 min
May 1, 8:30 AM CDTTornado WarningMEGChester, Hardeman, Madison45 min
May 1, 8:38 AM CDTSevere Thunderstorm WarningMEGChester, Decatur, Hardin, Henderson52 min
May 1, 8:50 AM CDTTornado WarningMEGDecatur, Henderson40 min
May 1, 9:08 AM CDTTornado WarningMEGChester, Henderson, Madison52 min
May 1, 9:14 AM CDTSevere Thunderstorm WarningMEGHaywood, Lauderdale, Tipton19 min
May 1, 9:18 AM CDTTornado WarningMEGFayette, Shelby16 min
May 1, 9:29 AM CDTRiver Flood WarningMEGMadison6 hr
May 1, 10:04 AM CDTTornado WarningMEGShelby41 min

Nearby

Flash Flood Warnings in Arkansas, 2010Flash Flood Warnings in Tennessee, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.