Alert archive / Mississippi / Severe Thunderstorm Warnings in 2005
Severe Thunderstorm Warning 190, NWS Memphis, TN
NWS Memphis, TN issued this severe thunderstorm warning at Aug 21, 2005, 3:42 PM CDT for Yalobusha County, Mississippi. It was in force for 33 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 21, 2005, 3:42 PM CDT (20:42 UTC)
- Expired
- Aug 21, 2005, 4:15 PM CDT
- In force
- 33 min
- Issued by
- NWS Memphis, TN
- Area
- Counties, with a storm outline in the text
County Yalobusha County, MS
The radar
The Columbus AFB radar (KGWX), 128 km from the middle of the area, began a volume at 20:42 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.
The nearest sounding before it
Jackson, MS (KJAN), launched 12:00Z, 8.7 hours before the alert went out and 193 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.
- Mixed-layer CAPE
- 1741 J/kg
- Mixed-layer CIN
- -65 J/kg
- Mixed-layer LCL
- 1294 m above ground
- 0-6 km bulk shear
- 5 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 48 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Aug 21, 3:35 PM CDT, 7 minutes earlier.
Area forecast discussion, Aug 21, 3:35 PM CDT, 7 minutes before
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</html>Hazardous weather outlook, Aug 21, 3:00 AM CDT, 12 hours 42 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MEMPHIS TN 300 AM CDT SUN AUG 21 2005 ARZ008-009-017-018-026>028-035-036-048-049-058-MOZ113-115-MSZ001>017- 020>024-TNZ001>004-019>021-048>055-088>092-221000- ALCORN-BENTON-CALHOUN-CARROLL-CHESTER-CHICKASAW-CLAY-COAHOMA- CRAIGHEAD-CRITTENDEN-CROCKETT-CROSS-DECATUR-DESOTO-DUNKLIN-DYER- FAYETTE-GIBSON-GREENE-HARDEMAN-HARDIN-HAYWOOD-HENDERSON-HENRY- ITAWAMBA-LAFAYETTE-LAKE-LAUDERDALE-LAWRENCE-LEE(AR)-LEE(MS)-MADISON- MARSHALL-MCNAIRY-MISSISSIPPI-MONROE-OBION-PANOLA-PEMISCOT-PHILLIPS- POINSETT-PONTOTOC-PRENTISS-QUITMAN-RANDOLPH-SHELBY-ST. FRANCIS- TALLAHATCHIE-TATE-TIPPAH-TIPTON-TISHOMINGO-TUNICA-UNION-WEAKLEY- YALOBUSHA- 300 AM CDT SUN AUG 21 2005 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST ARKANSAS...NORTH MISSISSIPPI...WEST TENNESSEE AND THE MISSOURI BOOTHEEL. .DAY ONE... A HEAT ADVISORY WILL CONTINUE ACROSS THE SOUTHERN HALF OF THE MID-SOUTH WITH HEAT INDICES REACHING 105 TO 111 DEGREES. THE ELDERLY AND THOSE WITH HEALTH PROBLEMS SHOULD REMAIN IN AN AIR CONDITIONED AREAS. IF OUTDOOR ACTIVITIES ARE PLANNED...TAKE FREQUENT BREAKS AND DRINK PLENTY OF WATER. A PRE-FRONTAL TROUGH OF LOW PRESSURE IS IN THE MID-SOUTH AND IT WILL TRIGGER SCATTERED THUNDERSTORMS ACROSS THE NORTHERN HALF OF THE AREA TODAY AND THIS EVENING. THE ATMOSPHERE WILL REMAIN UNSTABLE AND A FEW THUNDERSTORMS COULD APPROACH SEVERE LIMITS...WITH STRONG AND GUSTY WINDS POSSIBLE. ANY SEVERE THREAT SHOULD REMAIN LIMITED AND END LATER THIS EVENING WITH THE LOSS OF DAYTIME HEATING. .DAYS TWO THROUGH SEVEN... THE PRE-FRONTAL TROUGH WILL TRIGGER ADDITIONAL SCATTERED THUNDERSTORMS MONDAY. THE ATMOSPHERE WILL ONCE AGAIN BECOME UNSTABLE AND A FEW THUNDERSTORMS COULD AGAIN APPROACH SEVERE LIMITS...WITH STRONG AND GUSTY WINDS POSSIBLE. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION FOR WIDESPREAD SEVERE WEATHER IS NOT ANTICIPATED AT THIS TIME. JLH/WER
In the hours before
Local storm report, Aug 21, 3:03 PM CDT, 39 minutes before
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</html>Local storm report, Aug 21, 3:33 PM CDT, 9 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE MEMPHIS TN
333 PM CDT SUN AUG 21 2005
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0242 PM TSTM WND DMG HOUSTON 33.90N 89.00W
08/21/2005 CHICKASAW MS LAW ENFORCEMENT
SEVERAL TREES ACROSS ROADS THROUGHOUT CITY. POWER LINES
DOWN AS WELL.
0325 PM HAIL 9 E OXFORD 34.36N 89.37W
08/21/2005 0.75 INCH LAFAYETTE MS FIRE DEPT/RESCUE
&&
JRAThe office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 21, 2:39 PM CDT | Severe Thunderstorm Warning | MEG | Chickasaw | 36 min |
| Aug 21, 3:14 PM CDT | Severe Thunderstorm Warning | MEG | Lafayette | 31 min |
Nearby
Severe Thunderstorm Warnings in Mississippi, 2005Every severe thunderstorm warning in 2005
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; radar from the NEXRAD Level II archive.