Alert archive / Mississippi / Special Weather Statements in 2011

Special Weather Statement, NWS Jackson, MS

June 24, 2011Grenada County, Mississippi

NWS Jackson, MS issued this special weather statement at Jun 24, 2011, 2:09 PM CDT for Grenada County, Mississippi. It was in force for 71 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 24, 2011, 2:09 PM CDT (19:09 UTC)
Expired: Jun 24, 2011, 3:20 PM CDT
In force: 71 min
Issued by: NWS Jackson, MS

County Grenada County, MS

The radar

The Columbus AFB radar (KGWX), 126 km from the middle of the area, began a volume at 19:09 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

Little Rock, AR (KLZK), launched 12:00Z, 7.2 hours before the alert went out and 117 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: 2424 J/kg
Mixed-layer CIN: -104 J/kg
Mixed-layer LCL: 1313 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 71 m²/s²
0-3 km storm-relative helicity: 64 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.

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What forecasters said that day

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

NWS Jackson, MS wrote its last area forecast discussion before this special weather statement went out at Jun 24, 11:04 AM CDT, 3 hours 5 minutes earlier.

Area forecast discussion, Jun 24, 11:04 AM CDT, 3 hours 5 minutes before

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Hazardous weather outlook, Jun 24, 4:33 AM CDT, 9 hours 36 minutes before

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In the hours before

Special weather statement, Jun 24, 2:09 PM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
209 PM CDT FRI JUN 24 2011

MSZ026-029-242020-
GRENADA MS-WEBSTER MS-
209 PM CDT FRI JUN 24 2011

...STRONG TO SEVERE THUNDERSTORMS MOVING ACROSS NORTH CENTRAL
MISSISSIPPI...

AT 205 PM...A LARGE AREA OF STRONG TO SEVERE THUNDERSTORMS WAS
ACROSS NORTHERN MISSISSIPPI FROM ABOUT 15 MILES NORTHEAST OF TUPELO
TO NEAR LAMBERT. THESE STORMS WERE MOVING SOUTHEAST AT 25 MPH...AND
ARE EXPECTED TO MAINTAIN THEIR INTENSITY AS THEY MOVE SOUTHEAST
ACROSS NORTH CENTRAL MISSISSIPPI THIS AFTERNOON.

DAMAGING WINDS IN EXCESS OF 60 MPH...LARGE HAIL...AND CONTINUOUS
CLOUD TO GROUND LIGHTNING WILL BE POSSIBLE WITH THESE STORMS. THE
STORMS SHOULD REACH NORTHERN PARTS OF GRENADA AND WEBSTER COUNTIES
BETWEEN 3 AND 4 PM.

PEOPLE IN WEBSTER AND GRENADA COUNTIES SHOULD MONITOR THESE STORMS
CLOSELY.

LAT...LON 3388 8976 3387 8951 3373 8949 3373 8919
      3375 8918 3375 8910 3366 8904 3369 9012
      3380 9014 3381 9012 3381 8999 3383 8998
      3383 8994 3390 8992 3390 8977
TIME...MOT...LOC 1905Z 309DEG 17KT 3406 9035

AEG

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 24, 2:58 PM CDT	Special Weather Statement	JAN	Leflore	57 min
Jun 24, 3:23 PM CDT	Severe Thunderstorm Warning	JAN	Leflore, Sunflower	52 min
Jun 24, 3:24 PM CDT	Severe Thunderstorm Warning	JAN	Carroll, Grenada	66 min
Jun 24, 3:59 PM CDT	Severe Thunderstorm Warning	JAN	Lowndes	46 min
Jun 24, 4:07 PM CDT	Severe Thunderstorm Warning	JAN	Carroll, Leflore	42 min
Jun 24, 4:22 PM CDT	Severe Thunderstorm Warning	JAN	Attala, Carroll, Choctaw, Montgomery, Oktibbeha, Winston	53 min
Jun 24, 5:03 PM CDT	Severe Thunderstorm Warning	JAN	Attala, Leake, Neshoba, Noxubee, Winston	57 min
Jun 24, 5:46 PM CDT	Severe Thunderstorm Warning	JAN	Leake, Madison	43 min
Jun 24, 5:51 PM CDT	Special Weather Statement	JAN	Kemper, Lauderdale, Newton	59 min
Jun 24, 6:04 PM CDT	Severe Thunderstorm Warning	JAN	Kemper, Lauderdale, Newton, Scott	50 min
Jun 24, 6:08 PM CDT	Special Weather Statement	JAN	Forrest	47 min
Jun 24, 6:37 PM CDT	Special Weather Statement	JAN	Clarke, Jasper, Rankin, Simpson, Smith	58 min
Jun 24, 5:52 PM CDT	Special Weather Statement	JAN	Chicot	28 min

Nearby

Special Weather Statements in Mississippi, 2011 Every special weather statement in 2011

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.