Alert archive / Mississippi / Flash Flood Warnings in 1991

Flash Flood Warning 29, NWS Memphis, TN

May 26, 1991Alcorn County, Mississippi

NWS Memphis, TN issued this flash flood warning at May 26, 1991, 8:18 PM CDT for Alcorn County, Mississippi. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued
May 26, 1991, 8:18 PM CDT (01:18 UTC)
Expired
May 27, 1991, 8:00 AM CDT
In force
12 hr
Issued by
NWS Memphis, TN
Area
Whole counties

County Alcorn County, MS

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 1.3 hours before the alert went out and 227 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, Nashville Metro, TN at 00:00Z on 1991-05-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 45 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, Nashville Metro, TN at 00:00Z on 1991-05-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 45 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
45 J/kg
Mixed-layer CIN
-24 J/kg
Mixed-layer LCL
1195 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
45 m²/s²
0-3 km storm-relative helicity
72 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

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 Memphis, TN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 26, 8:39 PM CDTFlash Flood WarningMEGItawamba, Prentiss, Tishomingo10 hr
May 26, 8:39 PM CDTFlash Flood WarningMEGMonroe10 hr
May 27, 12:38 AM CDTFlash Flood WarningMEGLee, Monroe4 hr
May 27, 9:29 AM CDTFlash Flood WarningMEGLee, Monroe6 hr
May 27, 3:48 PM CDTFlash Flood WarningMEGLee, Monroe9 hr

Nearby

Flash Flood Warnings in Mississippi, 1991Every flash flood warning in 1991

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.