Alert archive / Mississippi / Special Weather Statements in 2015

Special Weather Statement, NWS Jackson, MS

August 20, 2015Newton County, Mississippi

NWS Jackson, MS issued this special weather statement at Aug 20, 2015, 3:33 PM CDT for Newton County, Mississippi. It was in force for 42 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: Aug 20, 2015, 3:33 PM CDT (20:33 UTC)
Expired: Aug 20, 2015, 4:15 PM CDT
In force: 42 min
Issued by: NWS Jackson, MS

County Newton County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 80 km from the middle of the area, began a volume at 20:37 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, 8.6 hours before the alert went out and 88 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: 474 J/kg
Mixed-layer CIN: -53 J/kg
Mixed-layer LCL: 844 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 67 m²/s²
0-3 km storm-relative helicity: 111 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 Aug 20, 11:11 AM CDT, 4 hours 22 minutes earlier.

Area forecast discussion, Aug 20, 11:11 AM CDT, 4 hours 22 minutes before

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Hazardous weather outlook, Aug 20, 2:03 PM CDT, 1 hour 30 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE JACKSON MS
203 PM CDT THU AUG 20 2015

ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>066-072>074-
211915-
ASHLEY-CHICOT-MOREHOUSE-WEST CARROLL-EAST CARROLL-RICHLAND-
MADISON-FRANKLIN-CATAHOULA-TENSAS-CONCORDIA-BOLIVAR-SUNFLOWER-
LEFLORE-GRENADA-CARROLL-MONTGOMERY-WEBSTER-CLAY-LOWNDES-CHOCTAW-
OKTIBBEHA-WASHINGTON-HUMPHREYS-HOLMES-ATTALA-WINSTON-NOXUBEE-
ISSAQUENA-SHARKEY-YAZOO-LEAKE-NESHOBA-KEMPER-WARREN-HINDS-RANKIN-
SCOTT-NEWTON-LAUDERDALE-CLAIBORNE-COPIAH-SIMPSON-SMITH-JASPER-
CLARKE-JEFFERSON-ADAMS-LINCOLN-LAWRENCE-JEFFERSON DAVIS-COVINGTON-
JONES-MARION-LAMAR-FORREST-
203 PM CDT THU AUG 20 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST
ARKANSAS...NORTHEAST LOUISIANA...CENTRAL MISSISSIPPI...NORTH
CENTRAL MISSISSIPPI...AND SOUTH CENTRAL MISSISSIPPI.

.DAY ONE...TONIGHT AND FRIDAY

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.DAYS TWO THROUGH SEVEN...FRIDAY NIGHT THROUGH WEDNESDAY

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER CALL TO ACTION STATEMENT...
THE ACTIVATION OF STORM SPOTTERS...HAM RADIO OPERATORS...AND
EMERGENCY MANAGEMENT PERSONNEL IN SUPPORT OF SEVERE WEATHER
OPERATIONS IS NOT EXPECTED THROUGH NEXT WEDNESDAY.

2

&&

...HAZARD LEGEND...

NO SHORT TERM HAZARDS EXPECTED.

...USEFUL WEATHER WEB PAGES (URLS)...

NWS JAN HOME PAGE...
   WWW.WEATHER.GOV/JAN
STAY AWARE, STAY SAFE NWS JAN BRIEFING PAGE...
   WWW.SRH.NOAA.GOV/JAN/?N=SAFE
NWS JAN TROPICAL PAGE...
   WWW.SRH.NOAA.GOV/JAN/?N=TROPICAL
NATIONAL HURRICANE CENTER HOME PAGE...
   WWW.NHC.NOAA.GOV/
FIND NWS JAN ON FACEBOOK...
   WWW.FACEBOOK.COM/NWSJACKSONMS
FOLLOW NWS JAN ON TWITTER...
   @NWSJACKSONMS

   PLEASE CONVERT ALL WEB ADDRESSES TO LOWER CASE BEFORE ENTERING!

In the hours before

Special weather statement, Aug 20, 2:12 PM CDT, 1 hour 21 minutes before

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Special weather statement, Aug 20, 2:15 PM CDT, 1 hour 18 minutes before

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Special weather statement, Aug 20, 3:10 PM CDT, 23 minutes before

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Local storm report, Aug 20, 3:13 PM CDT, 20 minutes before

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Special weather statement, Aug 20, 3:26 PM CDT, 7 minutes before

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Special weather statement, Aug 20, 3:33 PM CDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 20, 2:12 PM CDT	Special Weather Statement	JAN	Marion	48 min
Aug 20, 2:15 PM CDT	Special Weather Statement	JAN	Forrest	45 min
Aug 20, 2:32 PM CDT	Severe Thunderstorm Warning	JAN	Forrest	47 min
Aug 20, 3:10 PM CDT	Special Weather Statement	JAN	Covington	50 min
Aug 20, 3:26 PM CDT	Special Weather Statement	JAN	Rankin	49 min
Aug 20, 3:43 PM CDT	Special Weather Statement	JAN	Scott	47 min
Aug 20, 4:03 PM CDT	Special Weather Statement	JAN	Newton	42 min
Aug 20, 4:05 PM CDT	Special Weather Statement	JAN	Kemper	40 min
Aug 20, 4:18 PM CDT	Special Weather Statement	JAN	Rankin	27 min
Aug 20, 4:25 PM CDT	Flash Flood Warning	JAN	Newton, Scott	3 hr
Aug 20, 4:47 PM CDT	Special Weather Statement	JAN	Rankin	43 min
Aug 20, 4:48 PM CDT	Special Weather Statement	JAN	Clarke	42 min
Aug 20, 5:11 PM CDT	Special Weather Statement	JAN	Jasper	49 min
Aug 20, 5:13 PM CDT	Special Weather Statement	JAN	Lauderdale	47 min
Aug 20, 5:20 PM CDT	Special Weather Statement	JAN	Noxubee	40 min
Aug 20, 5:35 PM CDT	Special Weather Statement	JAN	Lauderdale	25 min
Aug 20, 5:45 PM CDT	Special Weather Statement	JAN	Clarke	45 min
Aug 20, 6:07 PM CDT	Special Weather Statement	JAN	Lauderdale	38 min
Aug 20, 6:17 PM CDT	Flash Flood Warning	JAN	Rankin, Scott	3 hr

Nearby

Special Weather Statements in Mississippi, 2015 Every special weather statement in 2015

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.