Alert archive / Arkansas / Flash Flood Warnings in 2007

Flash Flood Warning 21, NWS Memphis, TN

January 14, 2007Clay County, Greene County, Arkansas

NWS Memphis, TN issued this flash flood warning at Jan 14, 2007, 8:41 PM CST for Clay County, Greene County, Arkansas. It was in force for 4 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
Jan 14, 2007, 8:41 PM CST (02:41 UTC)
Expired
Jan 15, 2007, 12:45 AM CST
In force
4 hr
Issued by
NWS Memphis, TN
Area
Whole counties

Counties Clay County, AR, Greene County, AR

The radar

The Memphis radar (KNQA), 114 km from the middle of the area, began a volume at 02:45 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

Little Rock, AR (KLZK), launched 00:00Z, 2.7 hours before the alert went out and 164 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 2007-01-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Little Rock, AR at 00:00Z on 2007-01-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 343 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
495 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
343 m²/s²
0-3 km storm-relative helicity
408 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KMEG 150243
FFWMEG
ARC021-055-150645-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
841 PM CST SUN JAN 14 2007

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CLAY COUNTY IN EASTERN ARKANSAS
  GREENE COUNTY IN EASTERN ARKANSAS

* UNTIL 1245 AM CST

* AT 749 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  THAT VERY HEAVY RAIN WILL MOVE INTO THE WARNED AREA. 1 TO 3 INCHES 
  OF RAINFALL IS LIKELY TO OCCUR IN THE NEXT FEW HOURS WHICH         
  COULD RESULT IN FLASH FLOODING.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WALCOTT...
  SUCCESS...REYNO...RECTOR...POLLARD...PIGGOTT...PEACH ORCHARD...
  PARAGOULD...OAK GROVE HEIGHTS...MCDOUGAL...MARMADUKE...LAFE...
  KNOBEL...HICKORIA...GREENWAY...EVENING STAR...DELAPLAINE...DATTO...
  CORNING AND BEECH GROVE

.BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED...
ACT QUICKLY. TURN AROUND, DONT DROWN

LAT...LON 3651 9018 3630 9010 3598 9039 3600 9079
      3652 9077

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 14, 7:51 PM CSTFlash Flood WarningMEGLawrence, Randolph4 hr
Jan 14, 11:30 PM CSTFlash Flood WarningMEGLawrence, Randolph2 hr
Jan 15, 12:48 AM CSTFlash Flood WarningMEGClay, Greene117 min
Jan 15, 1:37 AM CSTFlash Flood WarningMEGLawrence, Randolph113 min
Jan 15, 1:53 AM CSTFlash Flood WarningMEGCraighead, Cross, Poinsett2 hr
Jan 15, 2:59 AM CSTFlash Flood WarningMEGClay, Greene2 hr
Jan 15, 3:42 AM CSTFlash Flood WarningMEGLawrence, Randolph2 hr
Jan 15, 5:16 AM CSTFlash Flood WarningMEGClay, Greene119 min
Jan 15, 6:01 AM CSTFlash Flood WarningMEGLawrence, Randolph119 min

Nearby

Flash Flood Warnings in Arkansas, 2007Every flash flood warning 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.