Alert archive / Mississippi / Flash Flood Warnings in 1991

Flash Flood Warning 47, NWS Memphis, TN

December 2, 1991Lee County, Monroe County, Mississippi

NWS Memphis, TN issued this flash flood warning at Dec 2, 1991, 3:22 PM CST for Lee County, Monroe County, Mississippi. It was in force for 8 min.

The area

The counties it named.

The facts

Issued
Dec 2, 1991, 3:22 PM CST (21:22 UTC)
Expired
Dec 2, 1991, 3:30 PM CST
In force
8 min
Issued by
NWS Memphis, TN
Area
Whole counties

Counties Lee County, MS, Monroe County, MS

The nearest sounding before it

Centreville/Bibb, AL (KCKL), launched 12:00Z, 9.4 hours before the alert went out and 184 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, Centreville/Bibb, AL at 12:00Z on 1991-12-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 502 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, Centreville/Bibb, AL at 12:00Z on 1991-12-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 126 square meters per square second.19395878Sfc1 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
502 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
539 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
126 m²/s²
0-3 km storm-relative helicity
212 m²/s²
Significant tornado parameter
0.3
Supercell composite
1.7

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
Dec 1, 10:08 PM CSTFlash Flood WarningMEGLee, Monroe4 hr
Dec 2, 2:11 AM CSTFlash Flood WarningMEGLee, Monroe13 hr
Dec 2, 10:30 AM CSTFlash Flood WarningMEGItawamba, Lee, Prentiss, Union10 hr
Dec 2, 10:30 AM CSTFlash Flood WarningMEGAlcorn, Tishomingo10 hr
Dec 2, 4:35 PM CSTSevere Thunderstorm WarningMEGItawamba25 min

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.