Alert archive / Mississippi / Flash Flood Warnings in 2021

Flash Flood Warning 52, NWS New Orleans, LA

June 19, 2021Pearl River County, Mississippi

NWS New Orleans, LA issued this flash flood warning at Jun 19, 2021, 1:52 AM CDT for Pearl River County, Mississippi. It was in force for 4 hr. 1 report 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
Jun 19, 2021, 1:52 AM CDT (06:52 UTC)
Expired
Jun 19, 2021, 5:45 AM CDT
In force
4 hr
Issued by
NWS New Orleans, LA
Area
Storm-based polygon
Flood severity
None

County Pearl River County, MS

What was reported inside it

TimeReportWhereRemark
Jun 19, 3:00 AM CDTFLASH FLOODPoplarville, MSNUMEROUS ROADWAYS IMPASSABLE ACROSS PEARL RIVER COUNTY. FLOODED VEHICLES ALSO REPORTED.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 6.9 hours before the alert went out and 79 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, Slidell Radar S, LA at 00:00Z on 2021-06-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 174 joules per kilogram.LCLLFCEL10008507005003002001001 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, Slidell Radar S, LA at 00:00Z on 2021-06-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 108 square meters per square second.193958Sfc1 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
174 J/kg
Mixed-layer CIN
-29 J/kg
Mixed-layer LCL
572 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
108 m²/s²
0-3 km storm-relative helicity
124 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

As transmitted.

605 
WGUS54 KLIX 190652
FFWLIX
MSC109-191045-
/O.NEW.KLIX.FF.W.0052.210619T0652Z-210619T1045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service New Orleans LA
152 AM CDT Sat Jun 19 2021

The National Weather Service in New Orleans has issued a

* Flash Flood Warning for...
  Pearl River County in southern Mississippi...

* Until 545 AM CDT.

* At 152 AM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1 and 3 inches of rain 
  have fallen. The expected rainfall rate is 1 to 2 inches in 1 
  hour. Additional rainfall amounts of 3 to 5 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...
  Poplarville and Mcneil.

This includes the following Interstates...
	Interstate 59 in Mississippi between mile markers 16 and 42.

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.

&&

LAT...LON 3065 8934 3066 8969 3100 8970 3100 8955
      3101 8955 3101 8950 3100 8950 3100 8948
      3098 8948 3098 8943 3101 8942 3101 8935
      3100 8935 3100 8934 3099 8934

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1-2 INCHES IN 1 HOUR

$$

TE
1 follow-up statement
629 
WGUS74 KLIX 191002
FFSLIX

Flash Flood Statement
National Weather Service New Orleans LA
502 AM CDT Sat Jun 19 2021

MSC109-191045-
/O.CON.KLIX.FF.W.0052.000000T0000Z-210619T1045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Pearl River MS-
502 AM CDT Sat Jun 19 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 545 AM CDT EARLY THIS 
MORNING FOR EAST CENTRAL PEARL RIVER COUNTY...

At 502 AM CDT, Doppler radar indicated thunderstorms producing heavy 
rain across the warned area. Between 4 and 7 inches of rain have 
fallen. The expected rainfall rate is 0.25 to 0.5 inches in 30 
minutes. Additional rainfall amounts up to 1 inch 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...
  mainly rural areas of East Central Pearl River County

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.

&&

LAT...LON 3065 8934 3066 8949 3093 8941 3093 8934
      3091 8934 3084 8934 3082 8934 3076 8934
      3075 8934 3074 8934

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...0.25-0.5 INCHES IN 30 MINUTES

$$

TE

The office that day

Everything else NWS New Orleans, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 18, 9:52 PM CDTAreal Flood AdvisoryLIXHancock, Harrison30 min
Jun 18, 10:22 PM CDTFlash Flood WarningLIXHancock, Harrison5 hr
Jun 18, 11:23 PM CDTTornado WarningLIXHancock, Harrison22 min
Jun 18, 11:39 PM CDTTornado WarningLIXHarrison, Jackson9 min
Jun 18, 11:40 PM CDTAreal Flood AdvisoryLIXHancock, Harrison, Jackson, Pearl River64 min
Jun 18, 11:46 PM CDTTornado WarningLIXHancock14 min
Jun 19, 12:37 AM CDTTornado WarningLIXHancock, Harrison23 min
Jun 19, 12:44 AM CDTFlash Flood WarningLIXHancock, Harrison, Jackson, Pearl River4 hr
Jun 19, 12:52 AM CDTAreal Flood AdvisoryLIXPearl River4 hr
Jun 19, 12:53 AM CDTTornado WarningLIXHarrison8 min
Jun 19, 2:56 AM CDTRiver Flood WarningLIXHancock41 hr
Jun 19, 3:37 AM CDTFlash Flood WarningLIXJackson4 hr
Jun 19, 5:08 AM CDTTornado WarningLIXJackson37 min

Nearby

Flash Flood Warnings in Mississippi, 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.