Alert archive / Mississippi / Flash Flood Warnings in 2017

Flash Flood Warning 29, NWS Jackson, MS

April 22, 2017Lauderdale County, Mississippi

NWS Jackson, MS issued this flash flood warning at Apr 22, 2017, 6:07 PM CDT for Lauderdale County, Mississippi. It was in force for 3 hr. 6 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
Apr 22, 2017, 6:07 PM CDT (23:07 UTC)
Expired
Apr 22, 2017, 9:00 PM CDT
In force
3 hr
Issued by
NWS Jackson, MS
Area
Storm-based polygon
Flood severity
None

County Lauderdale County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 129 km from the middle of the area, began a volume at 23:10 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

TimeReportWhereRemark
Apr 22, 6:35 PM CDTFLASH FLOOD1 Se Meridian, MSBASEMENT OF AN APARTMENT FLOODED.
Apr 22, 6:35 PM CDTFLASH FLOOD1 Se Meridian, MSCAR SUBMERGED BY FLOOD WATERS AT THE INTERSECTION OF 14TH STREET AND 24TH AVE.
Apr 22, 6:35 PM CDTFLASH FLOOD1 Sw Meridian, MSNUMEROUS REPORTS OF STREET FLOODING IN THE COLLEGE PARK AND HIGHWAY 19 AREA.
Apr 22, 6:35 PM CDTFLASH FLOOD2 Ese Meridian, MSSTREET FLOODING AT THE INTERSECTION OF FRONT STREET AND HWY 45/39.
Apr 22, 6:35 PM CDTFLASH FLOOD2 Ssw Meridian, MSSTREET FLOODING AT THE INTERSECTION OF 5TH STREET AND 45TH AVE.
Apr 22, 6:55 PM CDTFLASH FLOOD1 Se Meridian, MSSTREET FLOODING ONGOING ON 5TH STREET IN FRONT OF METRO AMBULANCE.

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

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 11.1 hours before the alert went out and 138 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, Jackson, MS at 12:00Z on 2017-04-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 23 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, Jackson, MS at 12:00Z on 2017-04-22The 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
23 J/kg
Mixed-layer CIN
-257 J/kg
Mixed-layer LCL
919 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
108 m²/s²
0-3 km storm-relative helicity
120 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

840 
WGUS54 KJAN 222307
FFWJAN
MSC075-230200-
/O.NEW.KJAN.FF.W.0029.170422T2307Z-170423T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Jackson MS
607 PM CDT SAT APR 22 2017

The National Weather Service in Jackson has issued a

* Flash Flood Warning for...
  Lauderdale County in east central Mississippi...

* Until 900 PM CDT

* At 605 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Two to three inches of rain 
  have fallen. Flash flooding has been reported in Meridian.

* Some locations that will experience flooding include...
  Lauderdale, Meridian, Meridian Station, Marion, Zero, Increase,
  Martin, Meehan, Toomsuba, Savoy, Suqualena, Kewanee, Nellieburg,
  Alamucha and Daleville.

Additional rainfall amounts of two to three 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.

&&

LAT...LON 3223 8843 3223 8891 3258 8891 3258 8839

$$

DC
2 follow-up statements
839 
WGUS74 KJAN 230027
FFSJAN

Flash Flood Statement
National Weather Service Jackson MS
727 PM CDT SAT APR 22 2017

MSC075-230200-
/O.CON.KJAN.FF.W.0029.000000T0000Z-170423T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Lauderdale MS-
727 PM CDT SAT APR 22 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR
LAUDERDALE COUNTY...

At 725 PM CDT, emergency management reported flash flooding in 
Meridian where some cars were becoming flooded. Up to 3 inches of 
rain have fallen. Flash flooding is already occurring.

Some locations that will experience flooding include...
Lauderdale, Meridian, Meridian Station, Marion, Zero, Increase,
Martin, Meehan, Toomsuba, Savoy, Suqualena, Kewanee, Nellieburg,
Alamucha and Daleville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3223 8843 3223 8891 3258 8891 3258 8839

$$

DC
412 
WGUS74 KJAN 230151
FFSJAN

Flash Flood Statement
National Weather Service Jackson MS
851 PM CDT SAT APR 22 2017

MSC075-230200-
/O.EXP.KJAN.FF.W.0029.000000T0000Z-170423T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Lauderdale MS-
851 PM CDT SAT APR 22 2017

...THE FLASH FLOOD WARNING FOR LAUDERDALE COUNTY WILL EXPIRE AT 900
PM CDT...

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

LAT...LON 3223 8843 3223 8891 3258 8891 3258 8839

$$

DC

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 22, 2:37 PM CDTSpecial Weather StatementJANHumphreys23 min
Apr 22, 2:59 PM CDTSevere Thunderstorm WarningJANHolmes, Humphreys, Yazoo46 min
Apr 22, 3:17 PM CDTSevere Thunderstorm WarningJANAttala, Holmes, Leake, Madison43 min
Apr 22, 3:38 PM CDTSevere Thunderstorm WarningJANMadison, Yazoo21 min
Apr 22, 3:55 PM CDTSevere Thunderstorm WarningJANLeake, Neshoba50 min
Apr 22, 4:00 PM CDTSpecial Weather StatementJANYazoo45 min
Apr 22, 4:07 PM CDTSpecial Weather StatementJANLowndes23 min
Apr 22, 4:16 PM CDTSpecial Weather StatementJANMadison44 min
Apr 22, 4:28 PM CDTSpecial Weather StatementJANNeshoba47 min
Apr 22, 4:41 PM CDTSevere Thunderstorm WarningJANKemper, Lauderdale, Neshoba, Newton49 min
Apr 22, 4:57 PM CDTSevere Thunderstorm WarningJANHinds, Madison, Rankin40 min
Apr 22, 5:06 PM CDTSpecial Weather StatementJANKemper39 min
Apr 22, 5:20 PM CDTSevere Thunderstorm WarningJANKemper, Lauderdale40 min
Apr 22, 5:36 PM CDTSpecial Weather StatementJANCopiah39 min
Apr 22, 5:52 PM CDTSevere Thunderstorm WarningJANLauderdale38 min
Apr 22, 6:13 PM CDTSpecial Weather StatementJANSimpson, Smith47 min
Apr 22, 6:18 PM CDTSevere Thunderstorm WarningJANClarke27 min
Apr 22, 6:32 PM CDTSpecial Weather StatementJANLauderdale13 min
Apr 22, 6:37 PM CDTSpecial Weather StatementJANLawrence, Lincoln38 min
Apr 22, 6:38 PM CDTSevere Thunderstorm WarningJANJasper, Smith52 min
Apr 22, 6:52 PM CDTSevere Thunderstorm WarningJANLawrence, Lincoln38 min

Nearby

Flash Flood Warnings in Mississippi, 2017Every flash flood warning in 2017

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.