Alert archive / Mississippi / Flash Flood Warnings in 1987

Flash Flood Warning 2, NWS Mobile, AL

March 17, 1987Forrest County, Perry County, Mississippi

NWS Mobile, AL issued this flash flood warning at Mar 17, 1987, 10:25 PM CST for Forrest County, Perry County, Mississippi. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Mar 17, 1987, 10:25 PM CST (04:25 UTC)
Expired
Mar 18, 1987, 1:00 AM CST
In force
3 hr
Issued by
NWS Mobile, AL
Area
Whole counties

Counties Forrest County, MS, Perry County, MS

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 4.4 hours before the alert went out and 156 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 00:00Z on 1987-03-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 83 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jackson, MS at 00:00Z on 1987-03-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 554 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
83 J/kg
Mixed-layer CIN
-15 J/kg
Mixed-layer LCL
622 m above ground
0-6 km bulk shear
76 kt
0-1 km storm-relative helicity
554 m²/s²
0-3 km storm-relative helicity
785 m²/s²
Significant tornado parameter
0.0
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 Mobile, AL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 17, 9:45 PM CSTSevere Thunderstorm WarningMOBHancock, Pearl River60 min
Mar 17, 10:30 PM CSTSevere Thunderstorm WarningMOBHarrison, Stone45 min
Mar 17, 11:30 PM CSTSevere Thunderstorm WarningMOBGeorge, Jackson60 min
Mar 18, 1:32 AM CSTSevere Thunderstorm WarningMOBJackson48 min

Nearby

Flash Flood Warnings in Mississippi, 1987Every flash flood warning in 1987

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.