Alert archive / Mississippi / Special Weather Statements in 2012

Special Weather Statement, NWS Jackson, MS

July 5, 2012Oktibbeha County, Mississippi

NWS Jackson, MS issued this special weather statement at Jul 5, 2012, 9:29 AM CDT for Oktibbeha County, Mississippi. It was in force for 61 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
Jul 5, 2012, 9:29 AM CDT (14:29 UTC)
Expired
Jul 5, 2012, 10:30 AM CDT
In force
61 min
Issued by
NWS Jackson, MS

County Oktibbeha County, MS

The radar

The Columbus AFB radar (KGWX), 70 km from the middle of the area, began a volume at 14:29 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, 2.5 hours before the alert went out and 170 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-pSkew-T log-p diagram, Jackson, MS at 12:00Z on 2012-07-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1329 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jackson, MS at 12:00Z on 2012-07-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 12 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
1329 J/kg
Mixed-layer CIN
-97 J/kg
Mixed-layer LCL
1002 m above ground
0-6 km bulk shear
4 kt
0-1 km storm-relative helicity
12 m²/s²
0-3 km storm-relative helicity
28 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.

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

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 Jul 5, 3:18 AM CDT, 6 hours 11 minutes earlier.

Area forecast discussion, Jul 5, 3:18 AM CDT, 6 hours 11 minutes before
<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>
Hazardous weather outlook, Jul 5, 4:42 AM CDT, 4 hours 47 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE JACKSON MS
442 AM CDT THU JUL 5 2012

ARZ074-075-LAZ007>009-015-016-023-MSZ018-019-025>052-060945-
ASHLEY-CHICOT-MOREHOUSE-WEST CARROLL-EAST CARROLL-RICHLAND-
MADISON LA-FRANKLIN LA-BOLIVAR-SUNFLOWER-LEFLORE-GRENADA-CARROLL-
MONTGOMERY-WEBSTER-CLAY-LOWNDES-CHOCTAW-OKTIBBEHA-WASHINGTON-
HUMPHREYS-HOLMES-ATTALA-WINSTON-NOXUBEE-ISSAQUENA-SHARKEY-YAZOO-
MADISON MS-LEAKE-NESHOBA-KEMPER-WARREN-HINDS-RANKIN-SCOTT-NEWTON-
LAUDERDALE-
442 AM CDT THU JUL 5 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EXTREME SOUTHEAST ARKANSAS AND
PORTIONS OF NORTHEAST LOUISIANA AND CENTRAL ALONG AND NORTH OF
INTERSTATE TWENTY.

.DAY ONE...TODAY AND TONIGHT

ISOLATED STRONG TO SEVERE THUNDERSTORMS ARE EXPECTED TO DEVELOP LATE
THIS AFTERNOON INTO THIS EVENING AS A WEAK DISTURBANCE MOVES ACROSS
THE AREA. WIND GUSTS OF 50 TO 60 MPH WILL BE POSSIBLE WITH THE MOST
INTENSE STORMS...AS WELL AS HAIL UP TO NICKEL OR QUARTER SIZE.

IN ADDITION...HOT AND HUMID CONDITIONS WILL CONTINUE TODAY BEFORE
STORMS DEVELOP LATE IN THE AFTERNOON. HIGH TEMPERATURES WILL BE IN
THE UPPER 90S WITH PEAK HEAT INDICES RANGING BETWEEN 100 AND 105
DEGREES. THOSE SPENDING MUCH TIME OUTDOORS SHOULD BE SURE TO TAKE
FREQUENT BREAKS AND DRINK PLENTY OF NON-ALCOHOLIC FLUIDS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

HOT CONDITIONS WITH PEAK HEAT INDEX VALUES RANGING BETWEEN 100 AND
105 DEGREES ARE AGAIN ANTICIPATED FRIDAY WITH MORE STORMS ERUPTING IN
THE LATE AFTERNOON AND EVENING. SOME OF THESE STORMS COULD AGAIN BE
STRONG TO LOCALLY SEVERE...WITH DAMAGING WINDS THE MAIN RISK FROM THE
MOST INTENSE STORMS.

.SPOTTER CALL TO ACTION STATEMENT...
THE ACTIVATION OF STORM SPOTTERS...HAM RADIO OPERATORS...AND
EMERGENCY MANAGEMENT PERSONNEL IN SUPPORT OF SEVERE WEATHER
OPERATIONS...MAY BE NEEDED THIS AFTERNOON AND EVENING AND AGAIN
FRIDAY AFTERNOON AND EVENING.

LAZ024>026-MSZ053>066-072>074-060945-
CATAHOULA-TENSAS-CONCORDIA-CLAIBORNE-COPIAH-SIMPSON-SMITH-JASPER-
CLARKE-JEFFERSON-ADAMS-FRANKLIN MS-LINCOLN-LAWRENCE-
JEFFERSON DAVIS-COVINGTON-JONES-MARION-LAMAR-FORREST-
442 AM CDT THU JUL 5 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHEAST LOUISIANA
AND CENTRAL MISSISSIPPI SOUTH OF INTERSTATE TWENTY.

.DAY ONE...TODAY AND TONIGHT

ISOLATED STRONG TO SEVERE THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON
INTO EARLY THIS EVENING AS A WEAK DISTURBANCE MOVES ACROSS THE AREA.
WIND GUSTS OF 50 TO 60 MPH WILL BE POSSIBLE WITH THE MOST INTENSE
STORMS...AS WELL AS HAIL UP TO NICKEL OR QUARTER SIZE.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

MORE STORMS ARE EXPECTED TO ERUPT FRIDAY AFTERNOON. SOME OF THESE
STORMS COULD AGAIN BE STRONG TO LOCALLY SEVERE...WITH DAMAGING WINDS
THE MAIN RISK FROM THE MOST INTENSE STORMS.

.SPOTTER CALL TO ACTION STATEMENT...
THE ACTIVATION OF STORM SPOTTERS...HAM RADIO OPERATORS...AND
EMERGENCY MANAGEMENT PERSONNEL IN SUPPORT OF SEVERE WEATHER
OPERATIONS...MAY BE NEEDED THIS AFTERNOON AND AGAIN FRIDAY AFTERNOON.

FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE AT
WWW.SRH.NOAA.GOV/JAN.

50

In the hours before

Special weather statement, Jul 5, 9:29 AM CDT, 0 minutes before
MSZ033-051530-
OKTIBBEHA MS-
929 AM CDT THU JUL 5 2012

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
929 AM CDT THU JUL 5 2012

A STRONG THUNDERSTORM CAPABLE OF PRODUCING 40 MPH WINDS WAS LOCATED
3 MILES EAST OF STARKVILLE AT 928 AM CDT...MOVING SOUTHWEST AT 10
MPH.

VERY HEAVY RAIN ALONG WITH CONTINUOUS CLOUD TO GROUND LIGHTNING ARE
ALSO POSSIBLE WITH THIS STORM.

HIGH WINDS CAN BRING DOWN TREES AND LARGE LIMBS RESULTING IN SERIOUS
INJURY OR PROPERTY DAMAGE. EXERCISE EXTREME CAUTION WHEN OUTDOORS
DURING SUCH STRONG WINDS...AND BE ESPECIALLY AWARE OF OLDER TREES.

PEOPLE IN OKTIBBEHA COUNTY SHOULD MONITOR THIS STORM CLOSELY.

LAT...LON 3328 8877 3328 8890 3337 8903 3357 8880
      3356 8876 3351 8867 3341 8867
TIME...MOT...LOC 1428Z 039DEG 11KT 3345 8877

19

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 4, 7:16 PM CDTSpecial Weather StatementJANMadison29 min
Jul 5, 1:20 PM CDTSevere Thunderstorm WarningJANMadison25 min
Jul 5, 1:42 PM CDTSevere Thunderstorm WarningJANLincoln33 min
Jul 5, 2:22 PM CDTSevere Thunderstorm WarningJANRankin, Scott23 min
Jul 5, 2:40 PM CDTSevere Thunderstorm WarningJANCovington, Smith23 min
Jul 5, 2:52 PM CDTSevere Thunderstorm WarningJANCopiah23 min
Jul 5, 3:34 PM CDTSevere Thunderstorm WarningJANSimpson, Smith30 min
Jul 5, 3:37 PM CDTSevere Thunderstorm WarningJANSimpson23 min
Jul 5, 3:58 PM CDTSevere Thunderstorm WarningJANSharkey, Simpson, Yazoo32 min
Jul 5, 4:16 PM CDTFlash Flood WarningJANSimpson50 min
Jul 5, 4:18 PM CDTSevere Thunderstorm WarningJANHinds27 min
Jul 5, 4:32 PM CDTSevere Thunderstorm WarningJANHinds, Warren28 min
Jul 5, 5:00 PM CDTSevere Thunderstorm WarningJANClaiborne, Hinds, Warren30 min
Jul 5, 5:23 PM CDTSevere Thunderstorm WarningJANIssaquena, Warren37 min
Jul 5, 5:38 PM CDTSevere Thunderstorm WarningJANWarren26 min
Jul 5, 5:51 PM CDTSpecial Weather StatementJANAdams29 min
Jul 5, 5:27 PM CDTSevere Thunderstorm WarningJANMadison16 min
Jul 5, 6:01 PM CDTSpecial Weather StatementJANMadison29 min
Jul 5, 6:24 PM CDTSpecial Weather StatementJANFranklin31 min
Jul 5, 6:44 PM CDTSevere Thunderstorm WarningJANCatahoula, Franklin, Madison, Richland, Tensas46 min
Jul 5, 6:08 PM CDTSpecial Weather StatementJANAshley32 min

Nearby

Special Weather Statements in Mississippi, 2012Every special weather statement in 2012

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.