Alert archive / Mississippi / Flash Flood Warnings in 2021

Flash Flood Warning 36, NWS Jackson, MS

June 9, 2021Grenada County, Mississippi

NWS Jackson, MS issued this flash flood warning at Jun 9, 2021, 1:27 AM CDT for Grenada County, Mississippi. 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
Jun 9, 2021, 1:27 AM CDT (06:27 UTC)
Expired
Jun 9, 2021, 4:30 AM CDT
In force
3 hr
Issued by
NWS Jackson, MS
Area
Storm-based polygon
Flood severity
None

County Grenada County, MS

The radar

The Columbus AFB radar (KGWX), 139 km from the middle of the area, began a volume at 06:30 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, 6.5 hours before the alert went out and 115 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 2021-06-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 69 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, Little Rock, AR at 00:00Z on 2021-06-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 89 square meters per square second.1939Sfc1 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
69 J/kg
Mixed-layer CIN
-185 J/kg
Mixed-layer LCL
917 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
89 m²/s²
0-3 km storm-relative helicity
146 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

100 
WGUS54 KJAN 090627
FFWJAN
MSC043-090930-
/O.NEW.KJAN.FF.W.0036.210609T0627Z-210609T0930Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Jackson MS
127 AM CDT Wed Jun 9 2021

The National Weather Service in Jackson has issued a

* Flash Flood Warning for...
  Grenada County in north central Mississippi...

* Until 430 AM CDT.

* At 125 AM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1 and 2 inches of rain 
  have fallen over the last couple of hours on top of the excessive 
  amounts that fell Tuesday.
  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...
  Grenada, Leflore, Bew Springs, Elliott, Holcomb, Gore Springs and 
  Misterton.

Additional rainfall amounts of 1 to 3 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.

Please report flooding to your local law enforcement agency when you 
can do so safely.

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 3368 8951 3368 9014 3381 9014 3381 8998
      3382 8998 3382 8993 3390 8993 3390 8977
      3386 8977 3386 8951

FLASH FLOOD...RADAR INDICATED

$$

22

The office that day

Everything else NWS Jackson, MS issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 8, 7:03 PM CDTFlash Flood WarningJANGrenada117 min
Jun 8, 9:58 PM CDTSevere Thunderstorm WarningJANChoctaw, Oktibbeha62 min
Jun 8, 11:12 PM CDTFlash Flood WarningJANBolivar, Sunflower3 hr
Jun 9, 4:03 AM CDTFlash Flood WatchJANAttala, Bolivar, Carroll, Choctaw, Clay, Grenada and 14 more39 hr
Jun 9, 10:07 AM CDTRiver Flood WarningJANYazoo18 days
Jun 9, 10:26 AM CDTRiver Flood WarningJANClay4 days
Jun 9, 11:50 AM CDTFlash Flood WarningJANBolivar, Sunflower3 hr
Jun 9, 12:52 PM CDTFlash Flood WarningJANGrenada, Leflore3 hr
Jun 9, 2:01 PM CDTFlash Flood WarningJANBolivar, Leflore, Sunflower, Washington3 hr
Jun 9, 2:30 PM CDTSevere Thunderstorm WarningJANIssaquena, Sharkey45 min
Jun 9, 2:36 PM CDTSpecial Weather StatementJANKemper24 min
Jun 9, 2:41 PM CDTSpecial Weather StatementJANAttala, Holmes49 min
Jun 9, 2:56 PM CDTSevere Thunderstorm WarningJANKemper, Noxubee49 min
Jun 9, 3:01 PM CDTSpecial Weather StatementJANYazoo29 min
Jun 9, 3:05 PM CDTSevere Thunderstorm WarningJANAttala, Holmes, Leake, Madison, Neshoba, Winston40 min
Jun 9, 3:26 PM CDTSevere Thunderstorm WarningJANYazoo33 min
Jun 9, 3:44 PM CDTSpecial Weather StatementJANLeake31 min
Jun 9, 3:58 PM CDTSpecial Weather StatementJANHolmes32 min
Jun 9, 4:18 PM CDTSpecial Weather StatementJANLeake27 min
Jun 9, 4:48 PM CDTSpecial Weather StatementJANHolmes, Humphreys27 min
Jun 9, 5:11 PM CDTSevere Thunderstorm WarningJANNewton, Scott20 min
Jun 9, 5:26 PM CDTSevere Thunderstorm WarningJANIssaquena, Sharkey, Yazoo49 min
Jun 9, 6:10 PM CDTSpecial Weather StatementJANJasper50 min
Jun 9, 6:26 PM CDTSpecial Weather StatementJANWarren34 min
Jun 9, 6:34 PM CDTSevere Thunderstorm WarningJANHinds, Warren41 min
Jun 9, 6:59 PM CDTSpecial Weather StatementJANClarke46 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.