Alert archive / Arkansas / Flash Flood Warnings in 2021
Flash Flood Warning 15, NWS Memphis, TN
NWS Memphis, TN issued this flash flood warning at Mar 17, 2021, 7:39 PM CDT for Dunklin County, Missouri; Clay County, Craighead County, Greene County, Arkansas. It was in force for 2 hr. 2 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
- Mar 17, 2021, 7:39 PM CDT (00:39 UTC)
- Expired
- Mar 17, 2021, 9:45 PM CDT
- In force
- 2 hr
- Issued by
- NWS Memphis, TN
- Area
- Storm-based polygon
- Flood severity
- None
Counties Clay County, AR, Craighead County, AR, Greene County, AR, Dunklin County, MO
The radar
The Memphis radar (KNQA), 109 km from the middle of the area, began a volume at 00:42 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 |
|---|---|---|---|
| Mar 17, 8:00 PM CDT | FLASH FLOOD | Paragould, AR | FLOODING IN PARAGOULD WAS CAUSING CARS TO STALL. TIME IS APPROXIMATE. |
| Mar 17, 8:22 PM CDT | HEAVY RAIN 3.37 | Paragould, AR |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Little Rock, AR (KLZK), launched 00:00Z, 0.7 hours before the alert went out and 162 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.
- Mixed-layer CAPE
- 959 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 873 m above ground
- 0-6 km bulk shear
- 71 kt
- 0-1 km storm-relative helicity
- 133 m²/s²
- 0-3 km storm-relative helicity
- 134 m²/s²
- Significant tornado parameter
- 0.8
- Supercell composite
- 4.3
The text
As transmitted.
416
WGUS54 KMEG 180039
FFWMEG
ARC021-031-055-MOC069-180345-
/O.NEW.KMEG.FF.W.0015.210318T0039Z-210318T0345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Memphis TN
739 PM CDT Wed Mar 17 2021
The National Weather Service in Memphis has issued a
* Flash Flood Warning for...
Eastern Clay County in eastern Arkansas...
Northeastern Craighead County in eastern Arkansas...
Central Greene County in eastern Arkansas...
Southwestern Dunklin County in southeastern Missouri...
* Until 1045 PM CDT.
* At 739 PM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 2 inches of rain
have fallen. Flash flooding is ongoing or expected to begin
shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Doppler radar.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other
drainage and low lying areas.
* Some locations that will experience flash flooding include...
Paragould, Piggott, Rector, Marmaduke, Oak Grove Heights,
Cardwell, Lafe, Pollard, Greenway, Crockett, Heubner, Mounds,
Halliday, Fritz, Cotton Belt, Bard, Brighton, Bertig, Noxburn and
Leonard.
Additional rainfall amounts of 1 to 2 inches are possible in the
warned area.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
A Flash Flood Warning means that flooding is imminent or occurring.
If you are in the warned area move to higher ground immediately.
Residents living along streams and creeks should take immediate
precautions to protect life and property.
&&
LAT...LON 3646 9028 3643 9016 3634 9012 3622 9018
3595 9037 3596 9070
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1-2 INCHES IN 2 HOURS
$$
TLSJr1 follow-up statement
624
WGUS74 KMEG 180245
FFSMEG
Flash Flood Statement
National Weather Service Memphis TN
945 PM CDT Wed Mar 17 2021
ARC021-031-055-MOC069-180255-
/O.CAN.KMEG.FF.W.0015.000000T0000Z-210318T0345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Clay AR-Craighead AR-Greene AR-Dunklin MO-
945 PM CDT Wed Mar 17 2021
...FLASH FLOOD WARNING IS CANCELLED FOR EASTERN CLAY, NORTHEASTERN
CRAIGHEAD, CENTRAL GREENE AND SOUTHWESTERN DUNKLIN COUNTIES...
Flood waters have receded. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.
LAT...LON 3646 9028 3643 9016 3634 9012 3622 9018
3595 9037 3596 9070
$$
TLSJrThe office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 18, 12:58 PM CDT | River Flood Warning | MEG | New Madrid, Pemiscot | 21 days |
Nearby
Flash Flood Warnings in Arkansas, 2021Flash Flood Warnings in Missouri, 2021Every flash flood warning in 2021
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.