Alert archive / Mississippi / Flash Flood Warnings in 2023

Flash Flood Warning 30, NWS Memphis, TN

July 4, 2023DeSoto County, Marshall County, Mississippi; Fayette County, Tennessee

NWS Memphis, TN issued this flash flood warning at Jul 4, 2023, 7:00 PM CDT for DeSoto County, Marshall County, Mississippi; Fayette County, Tennessee. 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 counties it named.

The facts

Issued: Jul 4, 2023, 7:00 PM CDT (00:00 UTC)
Expired: Jul 4, 2023, 9:47 PM CDT
In force: 3 hr
Issued by: NWS Memphis, TN
Area: Storm-based polygon
Flood severity: None

Counties DeSoto County, MS, Marshall County, MS, Fayette County, TN

The radar

The Memphis radar (KNQA), 49 km from the middle of the area, began a volume at 00:02 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

Nashville Metro, TN (KBNA), launched 00:00Z, 0.0 hours before the alert went out and 305 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: 1354 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 1415 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 1 m²/s²
0-3 km storm-relative helicity: 49 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.1

Open this sounding in Storm Lab

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 Jul 4, 6:30 PM CDT, 30 minutes earlier.

Area forecast discussion, Jul 4, 6:30 PM CDT, 30 minutes before

Area Forecast Discussion...UPDATED
National Weather Service Memphis TN
630 PM CDT Tue Jul 4 2023

...New AVIATION...

.SYNOPSIS...
Issued at 243 PM CDT Tue Jul 4 2023

Showers and thunderstorms, mainly during the afternoon hours,
will be possible each day this week. The most likely chance for
severe storms will be Wednesday afternoon. Damaging winds and
large hail will be the primary threats with any of the stronger
storms. Temperatures will be close to normal for much of the week.

&&

.DISCUSSION...
(This evening through next Monday)
Issued at 243 PM CDT Tue Jul 4 2023

Scattered thunderstorms were moving across portions of north
Mississippi this afternoon; otherwise, skies were mostly sunny.
Temperatures are currently in the 80s to around 90 degrees. The
thunderstorms over our region are north of a warm front which is
lifting slowly north across central Mississippi.

The warm front will continue to lift north tonight and should
start to fall apart overnight. The boundary will help provide a
little additional lift for thunderstorms to develop early this
evening but it looks like the chance of rain will gradually
diminish by late tonight and during the overnight hours.
Temperatures will be near normal for early July with lows
Wednesday morning in the lower 70s.

On Wednesday, a cold front will be moving slowly across Missouri
and Oklahoma. Thunderstorms are expected to develop ahead of the
front and across the Mid-South. Some of the thunderstorms could be
strong to severe with the most likely area for severe weather
across portions of northeast Arkansas, the Missouri bootheel and
into extreme northwest Tennessee. Temperatures will be close to
normal with highs in the upper 80s to lower 90s. The cold front
will make its way into northwest Arkansas Wednesday night with
more thunderstorms expected to move across the region.

The cold front will move into the region on Thursday and continue
to push south into north Mississippi for Thursday night. More
thunderstorms are expected for Thursday and into Thursday evening.
High pressure will try to build into the region late Thursday
night with most areas having dry weather overnight.

The cold front will stall out across central Mississippi for
Friday and Saturday with scattered thunderstorms still possible
across much of the Mid-South. With the frontal boundary to our
south, temperatures will be a couple of degrees cooler. The front
will start to move slowly back north on Sunday and Monday with
more showers and thunderstorms expected across the region.

&&

.AVIATION...
(00Z TAFS)
Issued at 629 PM CDT Tue Jul 4 2023

Cluster of TSRA will affect MEM through at least 01z. Expect
stabilization from widespread TSRA outflow to reduce TS potential
by the start of the late evening inbounds.

TSRA chances will arrive late Wednesday evening, in advance of a
surface cold front. Will likely also see a intervening chance of
TSRA, during the afternoon, in a similar setup to the past several
days.

PWB

&&

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

PUBLIC FORECAST...ARS
AVIATION...PWB

In the hours before

Special weather statement, Jul 4, 6:26 PM CDT, 34 minutes before

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Special weather statement, Jul 4, 6:32 PM CDT, 28 minutes before

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  <meta name="viewport" content="width=device-width, initial-scale=1">
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<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
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      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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Special weather statement, Jul 4, 6:39 PM CDT, 21 minutes before

Special Weather Statement
National Weather Service Memphis TN
639 PM CDT Tue Jul 4 2023

TNZ053-090-091-050015-
Hardeman TN-Chester TN-McNairy TN-
639 PM CDT Tue Jul 4 2023

...A strong thunderstorm will impact portions of northeastern
Hardeman, northwestern McNairy and southwestern Chester Counties
through 715 PM CDT...

At 639 PM CDT, Doppler radar was tracking a strong thunderstorm near
Chickasaw State Forest, moving east at 10 mph.

HAZARD...Winds in excess of 30 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Henderson, Bolivar, Chickasaw State Forest, Chickasaw State Park,
Silerton, Masseyville, Robertson, Toone, Hornsby, Rose Creek, Pine
Top, Woodville, Hickory Corners, Deanburg, Teague, Montezuma and
Shandy.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3522 8900 3541 8898 3543 8866 3516 8870
TIME...MOT...LOC 2339Z 276DEG 10KT 3532 8891

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...30 MPH

ARS

Local storm report, Jul 4, 6:42 PM CDT, 18 minutes before

Preliminary Local Storm Report
National Weather Service Memphis TN
642 PM CDT Tue Jul 4 2023

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

0638 PM     Rain             1 SSW Germantown        35.08N 89.80W
07/04/2023  M2.52 inch       Shelby             TN   Trained Spotter

            Trained spotter reporting 2.52 in of rain at
            poplar pike and hacks cross in Germantown
            since approx 4pm.

&&

DNM

Special weather statement, Jul 4, 6:43 PM CDT, 17 minutes before

Special Weather Statement
National Weather Service Memphis TN
643 PM CDT Tue Jul 4 2023

TNZ050-089-090-050015-
Hardeman TN-Fayette TN-Haywood TN-
643 PM CDT Tue Jul 4 2023

...A strong thunderstorm will impact portions of northeastern
Fayette, northwestern Hardeman and south central Haywood Counties
through 715 PM CDT...

At 643 PM CDT, Doppler radar was tracking a strong thunderstorm over
Somerville, or 21 miles west of Bolivar, moving east at 20 mph.

HAZARD...Winds in excess of 40 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Whiteville, Somerville, Hillville, Dancyville, Warren, Williston, Yum
Yum, Fayette Corners, Laconia, Cedar Chapel, Moorman, Taylor Chapel,
Lambert, Miller, Powers and Griffen.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3515 8945 3533 8952 3547 8916 3522 8906
TIME...MOT...LOC 2343Z 251DEG 18KT 3527 8940

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

ARS

Local storm report, Jul 4, 6:54 PM CDT, 6 minutes before

Preliminary Local Storm Report
National Weather Service Memphis TN
654 PM CDT Tue Jul 4 2023

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

0615 PM     Tstm Wnd Gst     1 S Eudora              34.82N 90.15W
07/04/2023  E45 MPH          DeSoto             MS   Public

            Photo on twitter: Near Hwy 301 & old Hwy
            304, public reports numerous limbs/branches
            down. Tine is radar estimated.

&&

DNM

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 4, 7:17 PM CDT	Areal Flood Advisory	MEG	DeSoto, Marshall, Tate	118 min
Jul 5, 6:45 PM CDT	Severe Thunderstorm Warning	MEG	DeSoto	45 min
Jul 4, 7:02 PM CDT	Special Weather Statement	MEG	Lauderdale	28 min
Jul 4, 7:04 PM CDT	Special Weather Statement	MEG	Chester	26 min
Jul 4, 7:13 PM CDT	Special Weather Statement	MEG	Lauderdale	32 min
Jul 4, 7:19 PM CDT	Special Weather Statement	MEG	Chester	26 min
Jul 4, 7:27 PM CDT	Special Weather Statement	MEG	Haywood	33 min
Jul 4, 7:39 PM CDT	Areal Flood Advisory	MEG	Chester, Hardeman, Henderson, Madison	2 hr
Jul 4, 7:58 PM CDT	Areal Flood Advisory	MEG	Haywood, Lauderdale, Tipton	3 hr
Jul 4, 7:59 PM CDT	Flash Flood Warning	MEG	Chester, Hardeman, Madison	3 hr
Jul 4, 8:11 PM CDT	Special Weather Statement	MEG	Hardeman	34 min
Jul 4, 8:29 PM CDT	Areal Flood Advisory	MEG	Chester, Decatur, Hardin, Henderson, McNairy	2 hr
Jul 4, 8:35 PM CDT	Special Weather Statement	MEG	Decatur	25 min
Jul 4, 9:01 PM CDT	Flash Flood Warning	MEG	Decatur, Hardin, Henderson	3 hr
Jul 4, 9:51 PM CDT	Areal Flood Advisory	MEG	Hardin	101 min
Jul 5, 5:27 PM CDT	Special Weather Statement	MEG	Lauderdale	33 min
Jul 5, 5:47 PM CDT	Special Weather Statement	MEG	Obion	28 min
Jul 5, 6:38 PM CDT	Special Weather Statement	MEG	Shelby	52 min
Jul 4, 8:33 PM CDT	Special Weather Statement	MEG	Poinsett	27 min
Jul 4, 8:42 PM CDT	Special Weather Statement	MEG	Craighead	18 min
Jul 5, 3:47 PM CDT	Special Weather Statement	MEG	Clay	43 min
Jul 5, 4:16 PM CDT	Severe Thunderstorm Warning	MEG	Clay	27 min
Jul 5, 4:30 PM CDT	Special Weather Statement	MEG	Poinsett	30 min
Jul 5, 5:01 PM CDT	Special Weather Statement	MEG	Poinsett	29 min
Jul 5, 5:57 PM CDT	Special Weather Statement	MEG	St. Francis	33 min

Nearby

Flash Flood Warnings in Mississippi, 2023 Flash Flood Warnings in Tennessee, 2023 Every flash flood warning in 2023

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.