Alert archive / Mississippi / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 62, NWS Memphis, TN

April 4, 2001Itawamba County, Mississippi

NWS Memphis, TN issued this severe thunderstorm warning at Apr 4, 2001, 1:46 PM CDT for Itawamba County, Mississippi. It was in force for 29 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued: Apr 4, 2001, 1:46 PM CDT (18:46 UTC)
Expired: Apr 4, 2001, 2:15 PM CDT
In force: 29 min
Issued by: NWS Memphis, TN
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Itawamba County, MS

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 6.8 hours before the alert went out and 152 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: 2589 J/kg
Mixed-layer CIN: -39 J/kg
Mixed-layer LCL: 473 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 121 m²/s²
0-3 km storm-relative helicity: 195 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 8.0

Open this sounding in Storm Lab

The text

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

064 
WUUS54 KMEG 041846
SVRMEM
MSC057-041915-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
146 PM CDT WED APR 4 2001

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  ITAWAMBA COUNTY IN NORTHEAST MISSISSIPPI

* UNTIL 215 PM CDT.

* AT 145 PM CDT...WEATHER RADAR INDICATED A SEVERE THUNDERSTORM
  OVER MANTACHIE...MOVING EAST AT 20 MPH.

* CITIES IN THE PATH OF THIS STORM THROUGH 215 PM CDT INCLUDE...
  MANTACHIE...
  FULTON...
  FAIRVIEW...TREMONT...

.IF CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A STRONG
BUILDING. DAMAGING WIND AND LARGE HAIL ARE LIKELY WITH THIS STORM.

.STAY TUNED TO THIS NATIONAL WEATHER SERVICE BROADCAST FOR THE LATEST
UPDATES AND INFORMATION.

LAT...LON 3438 8853 3421 8855 3416 8825 3438 8822

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Memphis, TN wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 4, 11:55 AM CDT, 1 hour 51 minutes earlier.

Area forecast discussion, Apr 4, 11:55 AM CDT, 1 hour 51 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MEMPHIS TN
1155 AM CDT WED APR 4 2001

ANALYSIS INDICATES THE SURFACE FRONT JUST S OF THE TN/MS BORDER. AN
OUTFLOW BOUNDARY FROM THE DEPARTING MCS HAS MERGED WITH THE FRONT
AND WILL BE THE FOCUS AREA FOR ADDITIONAL THUNDERSTORM DEVELOPMENT.

HAVE ALREADY UPDATED THE ZONES A FEW TIMES THIS MORNING TO ADJUST
THUNDERSTORM POPS. EXPECT ENOUGH CLOUDS THIS AFTERNOON TO KEEP THE
STORMS UNDER CONTROL. WILL CONTINUE TO MONITOR THE TRENDS.

.MEG...NONE.

012

In the hours before

Special weather statement, Apr 4, 11:00 AM CDT, 2 hours 46 minutes before

ARZ008-009-017-018-026>028-035-036-048-049-058-MOZ113-115-MSZ001>017-
020>024-TNZ001>004-019>021-048>055-088>092-041630-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
1100 AM CDT WED APR 4 2001

...SEVERE THUNDERSTORM WATCH EXPIRING...

THE SEVERE THUNDERSTORM WATCH WHICH WAS IN EFFECT FOR A PART OF
EAST ARKANSAS...WEST TENNESSEE AND NORTH MISSISSIPPI IS NOW
EXPIRING.

STAY TUNED FOR THE LATEST WEATHER INFORMATION.

012

The office that day

Everything else NWS Memphis, TN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 4, 5:35 AM CDT	Severe Thunderstorm Warning	MEG	Monroe	40 min
Apr 4, 12:51 PM CDT	Severe Thunderstorm Warning	MEG	Lee, Prentiss	39 min
Apr 4, 1:27 PM CDT	Severe Thunderstorm Warning	MEG	Lee	18 min
Apr 4, 1:57 PM CDT	Severe Thunderstorm Warning	MEG	Chickasaw	33 min
Apr 4, 2:23 PM CDT	Severe Thunderstorm Warning	MEG	Monroe	47 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2001 Every severe thunderstorm 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.