Alert archive / Mississippi / Flash Flood Warnings in 2001

Flash Flood Warning 33, NWS Jackson, MS

April 4, 2001Holmes County, Mississippi

NWS Jackson, MS issued this flash flood warning at Apr 4, 2001, 8:21 PM CDT for Holmes County, Mississippi. It was in force for 4 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 4, 2001, 8:21 PM CDT (01:21 UTC)
Expired: Apr 5, 2001, 12:15 AM CDT
In force: 4 hr
Issued by: NWS Jackson, MS
Area: Whole counties

County Holmes County, MS

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 1.4 hours before the alert went out and 89 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: 1845 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 1225 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 85 m²/s²
0-3 km storm-relative helicity: 282 m²/s²
Significant tornado parameter: 1.3
Supercell composite: 11.9

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KJAN 050128
FFWJAN
MSC051-050515-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON MS
821 PM CDT WED APR 4 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  HOLMES COUNTY IN CENTRAL MISSISSIPPI

* UNTIL 1215 AM CDT

* AT 821 PM CDT...SPOTTER REPORTS INDICATE FLASH FLOODING
  IS OCCURRING...ESPECIALLY IN AND NEAR THE CITY OF DURANT
  WHERE HIGHWAY 12 IS CLOSED DUE TO WATER COVERING THE ROAD
  IN MANY AREAS. RADAR HAS ESTIMATED THAT UPWARDS TO 10 TO
  12 INCHES OF RAIN HAS FALLEN IN THIS AREA OVER THE PAST
  3 TO 6 HOURS WITH ADDITIONAL AMOUNTS OF 2 TO 3 INCHES POSSIBLE
  THROUGH 1215 AM AS THUNDERSTORMS REDEVELOP OVER THE SAME
  AREAS THAT HAVE HAD THE PREVIOUS...TORRENTIAL RAINFALL. 

THIS IS A LIFE-THREATENING SITUATION. DO NOT DRIVE THROUGH
AREAS WHERE WATER COVERS THE ROAD AND ESPECIALLY CAUTIOUS AT 
NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS ZOF FLOODED
AREAS!! 

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. 
IT IS IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS
...OR CREEKS WHICH CAN BECOME KILLERS IN FLOODING SITUATIONS.

62

The office that day

Everything else NWS Jackson, MS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 4, 7:34 PM CDT	Flash Flood Warning	JAN	Leake	116 min
Apr 4, 8:51 PM CDT	Severe Thunderstorm Warning	JAN	Clarke	39 min
Apr 4, 9:20 PM CDT	Flash Flood Warning	JAN	Attala, Leake, Neshoba, Newton, Scott	3 hr
Apr 4, 9:26 PM CDT	Severe Thunderstorm Warning	JAN	Newton, Scott	49 min
Apr 4, 9:29 PM CDT	Severe Thunderstorm Warning	JAN	Rankin	16 min
Apr 4, 10:00 PM CDT	Severe Thunderstorm Warning	JAN	Smith	60 min
Apr 4, 10:16 PM CDT	Severe Thunderstorm Warning	JAN	Jasper, Newton, Scott, Smith	59 min
Apr 4, 11:13 PM CDT	Severe Thunderstorm Warning	JAN	Jasper, Smith	62 min

Nearby

Flash Flood Warnings in Mississippi, 2001 Every flash flood warning in 2001

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.