Alert archive / Mississippi / Flash Flood Warnings in 1997

Flash Flood Warning 5, NWS New Orleans, LA

April 27, 1997Pike County, Mississippi

NWS New Orleans, LA issued this flash flood warning at Apr 27, 1997, 5:07 AM CDT for Pike County, Mississippi. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Apr 27, 1997, 5:07 AM CDT (10:07 UTC)
Expired: Apr 27, 1997, 7:15 AM CDT
In force: 2 hr
Issued by: NWS New Orleans, LA
Area: Whole counties

County Pike County, MS

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 10.1 hours before the alert went out and 123 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 96 J/kg
Mixed-layer CIN: -414 J/kg
Mixed-layer LCL: 887 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 100 m²/s²
0-3 km storm-relative helicity: 371 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KNEW 271027
FFWNEW
MSC113-271215-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
507 AM CDT SUN APR 27 1997
 
THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A
FLASH FLOOD WARNING    EFFECTIVE UNTIL  715 AM CDT
FOR RESIDENTS IN THE FOLLOWING LOCATION...
 
IN SOUTH MISSISSIPPI
 
   ...NORTHWESTERN PIKE COUNTY
 
LATEST NATIONAL WEATHER SERVICE DOPPLER RADAR RAINFALL ESTIMATES
INDICATE 2 TO 3 INCHES OF RAIN HAS FALLEN OVER THE NORTHWEST
PORTION OF PIKE COUNTY DURING THE LAST THREE HOURS. PIKE COUNTY
CIVIL DEFENSE HAS REPORTED NEARLY A FOOT OF WATER THREATENING
A GROCERY STORE IN THE TOWN OF SUMMIT AT THIS TIME. STREET
FLOODING HAS ALSO BEEN REPORTED WEST OF MCCOMB.
 
THUNDERSTORMS CONTINUE TO DEVELOP OVER SOUTH CENTRAL AND SOUTHEAST
LOUISIANA TRACKING NORTHEAST TOWARDS SOUTHWEST MISSISSIPPI. THESE
STORMS COULD PRODUCE UP TO 1.5 INCHES OF ADDITIONAL RAINFALL ACROSS
THE WARNED AREA DURING THE NEXT SEVERAL HOURS.
 
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY.  THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO
CROSS SAFELY.  VEHICLES CAUGHT IN RISING WATER SHOULD BE
ABANDONED QUICKLY.  MOVE TO HIGHER GROUND.
 
&

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 26, 11:40 PM CDT	Severe Thunderstorm Warning	LIX	Wilkinson	35 min
Apr 27, 2:08 AM CDT	Severe Thunderstorm Warning	LIX	Amite, Wilkinson	52 min
Apr 27, 3:09 AM CDT	Severe Thunderstorm Warning	LIX	Amite, Wilkinson	36 min
Apr 27, 3:43 AM CDT	Severe Thunderstorm Warning	LIX	Pike	32 min
Apr 27, 6:00 AM CDT	Severe Thunderstorm Warning	LIX	Walthall	15 min
Apr 27, 7:48 AM CDT	Flash Flood Warning	LIX	Pike	117 min
Apr 27, 10:04 AM CDT	Flash Flood Warning	LIX	Pike, Walthall	4 hr
Apr 27, 11:35 AM CDT	Flash Flood Warning	LIX	Pike, Walthall	4 hr

Nearby

Flash Flood Warnings in Mississippi, 1997 Every flash flood warning in 1997

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.