Alert archive / Mississippi / Flash Flood Warnings in 1998

Flash Flood Warning 13, NWS New Orleans, LA

January 7, 1998Harrison County, Jackson County, Mississippi

NWS New Orleans, LA issued this flash flood warning at Jan 7, 1998, 7:30 AM CST for Harrison County, Jackson County, Mississippi. It was in force for 90 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jan 7, 1998, 7:30 AM CST (13:30 UTC)
Expired
Jan 7, 1998, 9:00 AM CST
In force
90 min
Issued by
NWS New Orleans, LA
Area
Whole counties

Counties Harrison County, MS, Jackson County, MS

The radar

The Mobile radar (KMOB), 64 km from the middle of the area, began a volume at 13:29 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

Slidell Radar S, LA (KSIL), launched 12:00Z, 1.5 hours before the alert went out and 84 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 12:00Z on 1998-01-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 146 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Slidell Radar S, LA at 12:00Z on 1998-01-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 91 square meters per square second.1939587897Sfc1 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
146 J/kg
Mixed-layer CIN
-51 J/kg
Mixed-layer LCL
508 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
91 m²/s²
0-3 km storm-relative helicity
-67 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.3

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 6, 9:57 PM CSTFlash Flood WarningLIXAmite4 hr
Jan 6, 9:57 PM CSTFlash Flood WarningLIXPike4 hr
Jan 6, 9:57 PM CSTFlash Flood WarningLIXWilkinson4 hr
Jan 7, 1:13 AM CSTSevere Thunderstorm WarningLIXHancock32 min
Jan 7, 1:42 AM CSTFlash Flood WarningLIXHancock, Pearl River3 hr
Jan 7, 3:42 AM CSTSevere Thunderstorm WarningLIXHarrison48 min
Jan 7, 4:25 AM CSTFlash Flood WarningLIXHarrison, Jackson3 hr
Jan 7, 5:09 AM CSTFlash Flood WarningLIXPearl River116 min

Nearby

Flash Flood Warnings in Mississippi, 1998Every flash flood warning in 1998

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.