Alert archive / Arkansas / Flash Flood Warnings in 2026

Flash Flood Warning 3, NWS Memphis, TN

April 28, 2026Mississippi County, Poinsett County, Arkansas

NWS Memphis, TN issued this flash flood warning at Apr 28, 2026, 9:01 PM CDT for Mississippi County, Poinsett County, Arkansas. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Apr 28, 2026, 9:01 PM CDT (02:01 UTC)
Expired: Apr 29, 2026, 12:00 AM CDT
In force: 3 hr
Issued by: NWS Memphis, TN
Area: Storm-based polygon
Flood severity: None

Counties Mississippi County, AR, Poinsett County, AR

The radar

The Memphis radar (KNQA), 30 km from the middle of the area, began a volume at 02:03 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

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

Jackson, MS (KJAN), launched 00:00Z, 2.0 hours before the alert went out and 359 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: 1602 J/kg
Mixed-layer CIN: -31 J/kg
Mixed-layer LCL: 720 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 244 m²/s²
0-3 km storm-relative helicity: 467 m²/s²
Significant tornado parameter: 4.6
Supercell composite: 24.2

Open this sounding in Storm Lab

The text

As transmitted.

880 
WGUS54 KMEG 290201
FFWMEG
ARC093-111-290500-
/O.NEW.KMEG.FF.W.0003.260429T0201Z-260429T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Memphis TN
901 PM CDT Tue Apr 28 2026

The National Weather Service in Memphis has issued a

* Flash Flood Warning for...
  Southwestern Mississippi County in eastern Arkansas...
  Poinsett County in eastern Arkansas...

* Until midnight CDT tonight.

* At 901 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1 and 1.5 inches of 
  rain have fallen. The expected rainfall rate is 1.5 to 3 inches in 
  1 hour. Additional rainfall amounts of 1 to 2 inches are possible 
  in the warned area. Flash flooding is ongoing or expected to begin 
  shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Osceola, Trumann, Marked Tree, Harrisburg, Lepanto, Wilson, 
  Tyronza, Keiser, Weiner, Joiner, Dyess, Bassett, Marie, 
  Waldenburg, Greenfield, Fisher, Birdsong, Judd Hill, Cassidy and 
  Payneway.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

&&

LAT...LON 3569 8996 3565 8992 3566 8985 3563 8986
      3559 8996 3556 8994 3555 8991 3551 8992
      3556 8998 3555 9004 3551 9005 3544 9003
      3539 9005 3547 9007 3548 9009 3548 9012
      3544 9014 3544 9104 3571 9104

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...1.5-3 INCHES IN 1 HOUR

$$

AEH

1 follow-up statement

514 
WGUS74 KMEG 290453
FFSMEG

Flash Flood Statement
National Weather Service Memphis TN
1153 PM CDT Tue Apr 28 2026

ARC093-111-290503-
/O.EXP.KMEG.FF.W.0003.000000T0000Z-260429T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Mississippi AR-Poinsett AR-
1153 PM CDT Tue Apr 28 2026

...FLASH FLOOD WARNING WILL EXPIRE AT MIDNIGHT CDT TONIGHT FOR 
SOUTHWESTERN MISSISSIPPI AND POINSETT COUNTIES...

The heavy rain has ended. Flooding is no longer expected to pose a 
threat. Please continue to heed remaining road closures.

&&

LAT...LON 3569 8996 3565 8992 3566 8985 3563 8986
      3559 8996 3556 8994 3555 8991 3551 8992
      3556 8998 3555 9004 3551 9005 3544 9003
      3539 9005 3547 9007 3548 9009 3548 9012
      3544 9014 3544 9104 3571 9104

$$

AEH

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 Apr 28, 6:40 PM CDT, 2 hours 21 minutes earlier. Its key messages:

Issued at 640 PM CDT Tue Apr 28 2026
Another round of severe weather is expected this afternoon into the late evening hours. All hazards will be on the table, particularly damaging winds.
Another chance for showers and thunderstorms arrives on Friday with a weak reinforcing cold front. Otherwise, generally dry and progressively cooler weather is expected through the weekend.

Area forecast discussion, Apr 28, 6:40 PM CDT, 2 hours 21 minutes before

Area Forecast Discussion...UPDATED
National Weather Service Memphis TN
640 PM CDT Tue Apr 28 2026

...New AVIATION...

.KEY MESSAGES...
Issued at 640 PM CDT Tue Apr 28 2026

- Another round of severe weather is expected this afternoon into
  the late evening hours. All hazards will be on the table,
  particularly damaging winds.

- Another chance for showers and thunderstorms arrives on Friday
  with a weak reinforcing cold front. Otherwise, generally dry and
  progressively cooler weather is expected through the weekend.

&&

.DISCUSSION...
(This evening through next Monday)
Issued at 111 PM CDT Tue Apr 28 2026

A very brief lull in convection is underway this late morning
across the Mid-South. There will be a messy convective scheme
unraveling over the next 2-3 hours as a strong cold front makes
its final approach. Severe thunderstorms are ongoing over NW AR
and SW MO, which will become our main focus for this afternoon.
According to the latest CAMs, convective mode will be
multicellular with a high potential for bowing segments,
especially across the Mississippi Delta. These bowing segments
will feature our highest damaging wind threat - most likely in
the 3-7PM time frame today. It's worth noting that there continue
to be considerable timing discrepancies even in the highest
resolution models this afternoon. The grand ensemble of the HREF
attempts to smooth out these inconsistencies, but the HRRR has
handled the observed convection best so far and it favors an
earlier solution by 2-3 hours compared to the remaining CAMs.

Hazard-wise, all threats are on the table today. As previously
alluded to, the convective mode favors a significant damaging
wind threat across north Mississippi this afternoon. While this
is the primary hazard, the low level shear profile is supportive
of embedded tornadoes, some of which could become strong (EF-2+).
Digging into some point soundings, there is noteworthy curvature
in the lowest level of the hodographs indicative of rotating
supercells. Midlevel lapse rates have been very impressive
throughout this multi-day event and will continue to support very
large hail this afternoon at over 7 degC/km. Somewhat of a
sleeper threat may be the heavy rainfall. While these storms will
be fairly progressive in their eastward movement, a training
situation may unfold across the southern half of our area. PWATs
are above the 97.5th percentile for this time of year, which will
support very efficient rainfall rates passing over the same areas
within a few hours of each other. Storm total QPF is manageable
for most of the area at around 1.5 inches through tomorrow, but
it creeps up to near 2.5 inches along our southernmost zones.
Especially with the Memphis metro, flooding will be a sneaky
hazard today.

After the convection moves through tonight, we should be all
clear of severe weather no later than 1AM. This is a very slow-
moving front and thus we'll still have some straggling post-
frontal showers over north MS for much of the day Wednesday.
Following this frontal passage and a weak reinforcing front on
Friday, cool high pressure will settle in nicely for the next few
days. Temperatures take a steady dive and end up about 10 degrees
below normal by this weekend with highs in the 60s. As southerly
flow returns on the back side of the exiting high pressure
system, we warm back up to near normal next week. However, the
long range forecast does favor a 30-40% chance of below normal
precipitation so we may be entering another mild pattern.

&&

.AVIATION...
(00Z TAFS)
Issued at 640 PM CDT Tue Apr 28 2026

Second round of TSRA formed quickly to the south of MEM, having
expanded in coverage as an upper level trough approached from the
southern plains and western Ozarks. This activity will likely
persist with the aid of a developing low level jet (winds around
FL020) increasing to 45kt over north MS by 03Z.

&&

.FIRE WEATHER...
Issued at 111 PM CDT Tue Apr 28 2026

Multiple rounds of showers and thunderstorms will move through
this afternoon and evening, resulting in 1-2" of rain areawide to
mitigate fire danger. Dry conditions with minRH values below 40%
will materialize on Thursday, before additional moisture returns
on Friday. The weekend looks dry again with minRH dipping back
below 40%.

&&

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

PUBLIC FORECAST...CAD
AVIATION...PWB

In the hours before

Local storm report, Apr 28, 5:54 PM CDT, 3 hours 7 minutes before

Preliminary Local Storm Report
National Weather Service Memphis TN
554 PM CDT Tue Apr 28 2026

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

0457 PM     Tstm Wnd Dmg     2 WSW Halls             35.87N 89.43W
04/28/2026                   Lauderdale         TN   911 Call Center

            Trees down off of Willow Run Ln.

&&

MJ

Local storm report, Apr 28, 5:56 PM CDT, 3 hours 5 minutes before

Preliminary Local Storm Report
National Weather Service Memphis TN
556 PM CDT Tue Apr 28 2026

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

0456 PM     Tstm Wnd Dmg     2 W Gates               35.84N 89.45W
04/28/2026                   Lauderdale         TN   911 Call Center

            Trees down on Highway 51 and Dry Hill Rd E.

&&

MJ

Local storm report, Apr 28, 5:57 PM CDT, 3 hours 4 minutes before

Preliminary Local Storm Report
National Weather Service Memphis TN
557 PM CDT Tue Apr 28 2026

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

0457 PM     Tstm Wnd Dmg     2 WNW Halls             35.89N 89.43W
04/28/2026                   Lauderdale         TN   911 Call Center

            Tree down on Highway 88 W.

&&

MJ

Local storm report, Apr 28, 6:03 PM CDT, 2 hours 58 minutes before

Preliminary Local Storm Report
National Weather Service Memphis TN
603 PM CDT Tue Apr 28 2026

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

0536 PM     Tstm Wnd Dmg     4 S Campbell            36.44N 90.09W
04/28/2026                   Dunklin            MO   Emergency Mngr

            Tree over the road south of Campbell.

&&

TAB

Local storm report, Apr 28, 7:17 PM CDT, 1 hour 44 minutes before

Preliminary Local Storm Report
National Weather Service Memphis TN
717 PM CDT Tue Apr 28 2026

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

0620 PM     Hail             3 NNE Coffeeville       34.01N 89.65W
04/28/2026  M0.75 Inch       Yalobusha          MS   Broadcast Media

&&

MJ

Local storm report, Apr 28, 8:46 PM CDT, 15 minutes before

Preliminary Local Storm Report
National Weather Service Memphis TN
846 PM CDT Tue Apr 28 2026

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

0844 PM     Flash Flood      West Memphis            35.14N 90.18W
04/28/2026                   Crittenden         AR   Emergency Mngr

            Several roads are being closed due to
            flooding.

&&

MJ

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 28, 7:07 PM CDT	Areal Flood Advisory	MEG	Crittenden, Cross, St. Francis	71 min
Apr 28, 7:51 PM CDT	Tornado Warning	MEG	Crittenden, Cross, St. Francis	39 min
Apr 28, 8:15 PM CDT	Flash Flood Warning	MEG	Crittenden, Cross, St. Francis	5 hr
Apr 28, 8:27 PM CDT	Areal Flood Advisory	MEG	Mississippi, Poinsett	34 min
Apr 28, 8:49 PM CDT	Severe Thunderstorm Warning	MEG	Crittenden	41 min

Nearby

Flash Flood Warnings in Arkansas, 2026 Every flash flood warning in 2026

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.