Alert archive / Mississippi / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 55, NWS Memphis, TN

April 7, 2000DeSoto County, Mississippi

NWS Memphis, TN issued this severe thunderstorm warning at Apr 7, 2000, 8:32 PM CDT for DeSoto County, Mississippi. It was in force for 48 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Apr 7, 2000, 8:32 PM CDT (01:32 UTC)
Expired: Apr 7, 2000, 9:20 PM CDT
In force: 48 min
Issued by: NWS Memphis, TN
Area: Whole counties

County DeSoto County, MS

The radar

The Memphis radar (KNQA), 53 km from the middle of the area, began a volume at 01:34 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

Time	Report	Where	Remark
Apr 7, 9:05 PM CDT	Hail 0.75	South Haven, MS

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 7, 6:15 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 1.5 hours before the alert went out and 6 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: 521 J/kg
Mixed-layer CIN: -33 J/kg
Mixed-layer LCL: 1505 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 61 m²/s²
0-3 km storm-relative helicity: 11 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.8

Open this sounding in Storm Lab

The text

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

762 
WUUS54 KMEG 080132
SVRMEM
MSC033-080220-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
832 PM CDT FRI APR 7 2000


THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  DE SOTO COUNTY IN NORTHWESTERN MISSISSIPPI

* UNTIL 920 PM CDT

* AT 830 PM CDT... DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  WITH LARGE HAIL AND DAMAGING WINDS 23 MILES NORTHWEST OF HERNANDO
  OR 9 MILES WEST OF LAKE CORMORANT... MOVING SOUTHEAST AT 35 MPH.
  THIS STORM PRODUCED GOLFBALL SIZED HAIL NORTH OF FORREST CITY IN
  ST FRANCIS COUNTY.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  SOUTHHAVEN BY 845 PM CDT
  LAKE CORMORANT BY 845 PM CDT
  WALLS BY 850 PM CDT
  EUDORA BY 855 PM CDT
  HERNANDO BY 905 PM CDT

.SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...
DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR
PROTECTION...MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.



 
N

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 7, 2:00 PM CDT, 6 hours 32 minutes earlier.

Area forecast discussion, Apr 7, 2:00 PM CDT, 6 hours 32 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MEMPHIS TN
200 PM CDT FRI APR 7 2000

SURFACE MAPS SHOW SHARPENING COLD FRONT TO OUR NORTHWEST. AT
19Z...THE FRONT EXTENDED FROM CENTRAL MO INTO EXTREME NORTHWEST AR
AND DOWN TO NORTH CENTRAL TX. STRONG PRESSURE RISES BEHIND THIS
FRONT OF 6 MB/3 HR INDICATE THIS FRONT WILL CONTINUE TO SHARPEN AND
MOVE RAPIDLY THROUGH THE MID SOUTH THIS EVENING. AT UPPER
LEVELS...ENERGY WILL MOVE FROM THE PLAINS DIGGING A TROF OVER THE
REGION BY SATURDAY MORNING...WHICH WILL THEN PROGRESS EAST OF THE
REGION THROUGH THE WEEKEND.

SEVER WEATHER STARTING TO DEVELOP IN SOUTHEAST MO AND THUNDERSTORM
DEVELOPMENT CRANKING UP AHEAD OF FRONT IN AR. THE GREATEST THREAT OF
SEVERE WEATHER WILL BE THE NORTH HALF OF OUR COVERAGE AREA. SEE SPC
DISCUSSIONS FOR DETAILS. INSTABILITY MODERATE...NOT EXPECTING A HUGE
OUTBREAK. WE DO EXPECT A BROKEN LINE OF CONVECTION WITH SCATTERED
SEVERE REPORTS...STRAIGHT LINE WINDS MOST LIKELY.

THE COLD FRONT WILL SWEEP THROUGH MOST OF OUR AREA BY
MIDNIGHT...FOLLOWED BY MORE GUSTY WINDS WITH VARIABLE CLOUDINESS.
MUCH COOLER AIR ON THE WAY FOR LATE TONIGHT AND SATURDAY.
FORECAST WILL BE A LITTLE ABOVE GUIDANCE NUMBERS. THIS TIME OF YEAR
IT IS HARD TO HAVE ANY SUNSHINE AND STAY UNDER 50 DEGREES. AREAS
NORTHEAST OF MEMPHIS MAY WELL HAVE LINGERING CLOUDINESS INTO
SATURDAY AND WILL BE IN THE COLDEST AIR...PROBABLY STRUGGLING TOWARD
50 DEGREES.

SATURDAY NIGHT COULD BE THE COLDEST NIGHT IN QUITE A WHILE.
DEPENDING ON HOW QUICKLY HIGH PRESSURE BUILDS OVER THE WINDS
DECOUPLE...A FREEZE WARNING MAY BE NEEDED.

NOT MUCH TIME TO LOOK AT EXTENDED...WILL GENERALLY FOLLOW NA)TIONAL
GUIDANCE.

.MEM...NONE.
SH

In the hours before

Special weather statement, Apr 7, 3:30 PM CDT, 5 hours 2 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>092-080100-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MEMPHIS TN
330 PM CDT FRI APR 7 2000

THIS SEVERE WEATHER OUTLOOK COVERS THE COUNTY WARNING AREA OF THE
NATIONAL WEATHER SERVICE FORECAST OFFICE IN MEMPHIS TENNESSEE...
INCLUDING WEST TENNESSEE...NORTH MISSISSIPPI...EAST ARKANSAS...AND
THE MISSOURI BOOTHEEL.

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS LATE THIS AFTERNOON
AND EVENING ACROSS EAST ARKANSAS...THE MISSOURI BOOTHEEL...WEST
TENNESSEE AND NORTHWEST MISSISSIPPI.

A FAST MOVING COLD FRONT WILL ENCOUNTER A WARM AND FAIRLY UNSTABLE
ATMOSPHERE AS IT CROSSES THE MID SOUTH THIS EVENING. A LINE OF
THUNDERSTORMS IS EXPECTED TO DEVELOP ALONG THIS FRONT.

LARGE HAIL AND DAMAGING WINDS WILL BE THE MAIN SEVERE WEATHER
THREATS. THE MOST LIKELY TIME FOR SEVERE WEATHER IN THE MID-SOUTH
WILL BE BETWEEN 6PM AND MIDNIGHT.

STORM SPOTTER GROUPS AND EMERGENCY MANAGEMENT PERSONNEL SHOULD BE
PREPARED FOR POSSIBLE ACTIVATION THIS AFTERNOON AND EVENING. MONITOR
NOAA WEATHER RADIO...COMMERCIAL RADIO...TELEVISION...AND CABLE
TELEVISION UFOR THE LATEST FORECASTS AND INFORMATION.

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 7, 8:50 PM CDT	Severe Thunderstorm Warning	MEG	Tunica	35 min
Apr 7, 9:23 PM CDT	Severe Thunderstorm Warning	MEG	Tate	47 min
Apr 7, 9:59 PM CDT	Severe Thunderstorm Warning	MEG	Panola	36 min
Apr 7, 10:10 PM CDT	Severe Thunderstorm Warning	MEG	Lafayette	50 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2000 Every severe thunderstorm warning in 2000

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.