Alert archive / Mississippi / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 277, NWS Jackson, MS

July 7, 2015Holmes County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Jul 7, 2015, 7:25 PM CDT for Holmes County, Mississippi. It was in force for 50 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: Jul 7, 2015, 7:25 PM CDT (00:25 UTC)
Expired: Jul 7, 2015, 8:15 PM CDT
In force: 50 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Holmes County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 94 km from the middle of the area, began a volume at 00:28 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 (KBYH), launched 00:00Z, 0.4 hours before the alert went out and 190 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: 1414 J/kg
Mixed-layer CIN: -4 J/kg
Mixed-layer LCL: 1238 m above ground
0-6 km bulk shear: 1 kt
0-1 km storm-relative helicity: -21 m²/s²
0-3 km storm-relative helicity: -80 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 Jackson, MS wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 7, 3:33 PM CDT, 3 hours 52 minutes earlier.

Area forecast discussion, Jul 7, 3:33 PM CDT, 3 hours 52 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JACKSON MS
333 PM CDT TUE JUL 7 2015

.DISCUSSION...MODERATE CU WAS PREVALENT OVER THE MAJORITY OF
FORECAST AREA THIS AFTERNOON WITH EVEN SOME ISOLATED SHOWERS AND
THUNDERSTORMS OVER THE SOUTHEASTERN TWO THIRDS. THIS ACTIVITY HAS
LIKELY BEEN ENHANCED BY LOW TO MID LEVEL SOUTHWESTERLY MOISTURE
INFUSION AS WELL AS 40-50 KNOT 300 MB JET STREAK PASSING OVER THE
AREA.

CONVECTIVE POTENTIAL WILL BECOME SOMEWHAT LIMITED THE NEXT FEW DAYS
AS SUBSIDENCE/WARMING INCREASES FROM THE EAST AS MID/UPPER LEVEL
RIDGE BUILDS IN. UPPER 60S DEWPOINTS LOOK TO MIX DOWN WEDNESDAY
WHICH WILL CAUSE PARCELS TO STRUGGLE MORE COMPARED TO TODAY...THUS
NOT EXPECTING ANY DEVELOPMENT. BY THURSDAY...LOW TO MID 70S
DEWPOINTS OVER EASTERN AND SOUTHERN SECTIONS WILL ALLOW FOR SOME
ISOLATED DEVELOPMENT.

SURFACE RIDGE AXIS WILL BECOME ORIENTED E-W ACROSS S MS BY THE
WEEKEND AND WILL LEAD TO LIGHT WINDS/LESS CONVERGENCE AND ONLY A
SLIGHT POTENTIAL FOR CONVECTION.

TEMPS WILL WARM INTO THE MID 90S OVER THE WEEKEND WITH HEAT INDICES
APPROACHING 105...ESPECIALLY ALONG AND NEAR RIVER CHANNELS WHERE
LOCALIZED DEWPOINTS WILL BE IN THE MID 70S.

MID/UPPER LEVEL RIDGE WILL CONTINUE WESTWARD INTO THE FIRST PART OF
NEXT WEEK AND ALLOW NW FLOW...INCREASING RAIN CHANCES AND SLIGHTLY
COOLER TEMPS TO RETURN./26/

&&

.AVIATION...SHOWERS AND THUNDERSTORMS DEVELOPED THIS AFTERNOON AND
MAY COME CLOSE TO JAN..HKS...MEI AND GWO BASED ON CURRENT TRENDS.
ADDED VCSH FOR A COUPLE HOURS THIS AFTERNOON...BUT WILL GO VCTS.
OTHERWISE...STILL EXPECTING SCATTERED CLOUDS WITH MOST CEILINGS
REMAINING ABOUT 3KFT THROUGH THE EARLY MORNING HOURS. MODELS
CONTINUE TO SUGGEST THERE WILL BE STRATUS ACROSS THE AREA LATE
TONIGHT./7/

&&

.PRELIMINARY POINT TEMPS/POPS...
JACKSON       74  93  73  93 /  11  10  11  13
MERIDIAN      72  93  72  93 /  12  10  10  17
VICKSBURG     74  93  73  93 /  11  10   8   9
HATTIESBURG   73  94  72  93 /  11  10   8  23
NATCHEZ       75  92  74  92 /  11  10   6  14
GREENVILLE    75  91  73  93 /  14  10  10   7
GREENWOOD     75  92  73  93 /  14  10   8  12

&&

.JAN WATCHES/WARNINGS/ADVISORIES...
MS...NONE.
LA...NONE.
AR...NONE.
&&

26/07

Hazardous weather outlook, Jul 7, 2:09 PM CDT, 5 hours 16 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE JACKSON MS
209 PM CDT TUE JUL 7 2015

ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>066-072>074-
081915-
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-
209 PM CDT TUE JUL 7 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 WEDNESDAY

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.DAYS TWO THROUGH SEVEN...WEDNESDAY NIGHT THROUGH MONDAY

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 MONDAY.

21

&&

...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, Jul 7, 5:46 PM CDT, 1 hour 39 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
546 PM CDT TUE JUL 7 2015

MSZ047-048-072315-
WARREN MS-HINDS MS-
546 PM CDT TUE JUL 7 2015

...A STRONG THUNDERSTORM WILL AFFECT EAST CENTRAL WARREN AND WEST
CENTRAL HINDS COUNTIES UNTIL 615 PM CDT...

AT 546 PM CDT...METEOROLOGISTS WERE TRACKING A STRONG THUNDERSTORM
NEAR NEWMAN...OR 8 MILES SOUTHEAST OF VICKSBURG...MOVING NORTHEAST AT
20 MPH.

DIME SIZE HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THIS STORM.

THIS STRONG THUNDERSTORM WILL BE NEAR...
  BOVINA AROUND 600 PM CDT.
  EDWARDS AROUND 610 PM CDT.

LAT...LON 3241 9077 3232 9055 3219 9072 3220 9073
      3222 9073 3221 9074 3221 9075 3224 9080
TIME...MOT...LOC 2246Z 213DEG 18KT 3227 9073

17

Special weather statement, Jul 7, 6:01 PM CDT, 1 hour 24 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
601 PM CDT TUE JUL 7 2015

MSZ048-049-072330-
HINDS MS-RANKIN MS-
601 PM CDT TUE JUL 7 2015

...A STRONG THUNDERSTORM WILL AFFECT SOUTHWESTERN RANKIN AND
SOUTHEASTERN HINDS COUNTIES UNTIL 630 PM CDT...

AT 601 PM CDT...METEOROLOGISTS WERE TRACKING A STRONG THUNDERSTORM
NEAR RICHLAND...MOVING NORTHEAST AT 20 MPH.

DIME SIZE HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THIS STORM.

THIS STRONG THUNDERSTORM WILL BE NEAR...
  RICHLAND AND MONTEREY AROUND 610 PM CDT.
  PEARL AROUND 620 PM CDT.

LAT...LON 3211 9014 3218 9028 3234 9024 3225 8997
TIME...MOT...LOC 2301Z 213DEG 18KT 3219 9018

17

Special weather statement, Jul 7, 6:20 PM CDT, 1 hour 5 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
620 PM CDT TUE JUL 7 2015

MSZ042-043-072345-
YAZOO MS-MADISON MS-
620 PM CDT TUE JUL 7 2015

...A STRONG THUNDERSTORM WILL AFFECT CENTRAL MADISON AND EAST CENTRAL
YAZOO COUNTIES UNTIL 645 PM CDT...

AT 617 PM CDT...METEOROLOGISTS WERE TRACKING A STRONG THUNDERSTORM
NEAR ANNANDALE...OR 10 MILES NORTHWEST OF MADISON...MOVING NORTHEAST
AT 20 MPH.

WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THIS STORM.

THIS STRONG THUNDERSTORM WILL BE NEAR...
  CANTON AROUND 630 PM CDT.

LAT...LON 3250 9015 3258 9031 3276 9021 3267 8994
TIME...MOT...LOC 2317Z 213DEG 16KT 3257 9021

17

Local storm report, Jul 7, 6:33 PM CDT, 52 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
633 PM CDT TUE JUL 07 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0625 PM     TSTM WND DMG     BOVINA                  32.35N 90.73W
07/07/2015                   WARREN             MS   LAW ENFORCEMENT

            REPORT OF A FEW TREES DOWN IN THE BOVINA AREA.

&&

DCOX

Special weather statement, Jul 7, 6:39 PM CDT, 46 minutes before

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Special weather statement, Jul 7, 6:57 PM CDT, 28 minutes before

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      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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      <p id="message2">
        Please try again in a few minutes.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 7, 7:14 PM CDT	Special Weather Statement	JAN	Holmes	31 min
Jul 7, 7:32 PM CDT	Special Weather Statement	JAN	Sharkey	28 min
Jul 7, 7:36 PM CDT	Special Weather Statement	JAN	Oktibbeha	24 min
Jul 7, 7:54 PM CDT	Special Weather Statement	JAN	Clay	36 min
Jul 8, 4:49 PM CDT	Special Weather Statement	JAN	Smith	26 min
Jul 8, 4:56 PM CDT	Special Weather Statement	JAN	Simpson	34 min
Jul 8, 5:25 PM CDT	Special Weather Statement	JAN	Scott	35 min
Jul 8, 5:28 PM CDT	Special Weather Statement	JAN	Marion	32 min
Jul 8, 5:41 PM CDT	Special Weather Statement	JAN	Smith	34 min
Jul 8, 5:04 PM CDT	Special Weather Statement	JAN	Concordia	26 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2015 Every severe thunderstorm warning 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.