Alert archive / Mississippi / Winter Storm Warnings in 2009

Winter Storm Warning 1, NWS Jackson, MS

February 28, 200913 counties in Mississippi

NWS Jackson, MS issued this winter storm warning at Feb 28, 2009, 3:46 PM CST for 13 counties in Mississippi. It took effect at Feb 28, 2009, 6:00 PM CST. It was in force for 14 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Feb 28, 2009, 3:46 PM CST (21:46 UTC)
In effect from: Feb 28, 2009, 6:00 PM CST
Expired: Mar 1, 2009, 8:04 AM CST
In force: 14 hr
Issued by: NWS Jackson, MS

Counties Attala County, MS, Carroll County, MS, Choctaw County, MS, Clay County, MS, Grenada County, MS, Kemper County, MS, Leflore County, MS, Lowndes County, MS, Montgomery County, MS, Noxubee County, MS, Oktibbeha County, MS, Webster County, MS, Winston County, MS

The radar

The Columbus AFB radar (KGWX), 103 km from the middle of the area, began a volume at 21:49 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

Birmingham, AL (KBMX), launched 12:00Z, 9.8 hours before the alert went out and 230 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 449 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 368 m²/s²
0-3 km storm-relative helicity: 414 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this winter storm 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 winter storm warning went out at Feb 28, 10:12 AM CST, 5 hours 34 minutes earlier.

Area forecast discussion, Feb 28, 10:12 AM CST, 5 hours 34 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, Feb 28, 6:55 AM CST, 8 hours 51 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE JACKSON MS
655 AM CST SAT FEB 28 2009

MSZ018-019-025>039-044>046-011300-
BOLIVAR-SUNFLOWER-LEFLORE-GRENADA-CARROLL-MONTGOMERY-WEBSTER-CLAY-
LOWNDES-CHOCTAW-OKTIBBEHA-WASHINGTON-HUMPHREYS-HOLMES-ATTALA-
WINSTON-NOXUBEE-LEAKE-NESHOBA-KEMPER-
655 AM CST SAT FEB 28 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL MISSISSIPPI.

.DAY ONE...TODAY AND TONIGHT

LIGHT RAIN MAY BRIEFLY MIX WITH LIGHT SLEET BEFORE CHANGING OVER TO
LIGHT SNOW TONIGHT. SNOWFALL ACCUMULATIONS COULD TOTAL ONE INCH ON
GRASSY SURFACES...AS WELL AS BRIDGES AND OVERPASSES. THIS AREA WAS
GENERALLY ALONG AND NORTH OF A LINE FROM GREENVILLE TO DE KALB. A
WINTER WEATHER ADVISORY IS IN EFFECT FOR TONIGHT. THE POTENT UPPER
LEVEL LOW THAT WILL BRING THE CHANCE FOR SNOW WILL SHIFT EAST INTO
ALABAMA SUNDAY MORNING ENDING THE SNOW. IN ADDITION...NORTHWEST WINDS
OF 15 TO 20 MPH WITH GUSTS TO 30 MPH COMBINED WITH TEMPERATURES IN
THE 30S WILL MAKE IT FEEL BRISK TONIGHT INTO SUNDAY MORNING.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

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 FRIDAY.

ARZ074-075-LAZ007>009-015-016-023-025-MSZ040>043-047>058-011300-
ASHLEY-CHICOT-MOREHOUSE-WEST CARROLL-EAST CARROLL-RICHLAND-
MADISON LA-FRANKLIN LA-TENSAS-ISSAQUENA-SHARKEY-YAZOO-MADISON MS-
WARREN-HINDS-RANKIN-SCOTT-NEWTON-LAUDERDALE-CLAIBORNE-COPIAH-
SIMPSON-SMITH-JASPER-CLARKE-
655 AM CST SAT FEB 28 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL MISSISSIPPI...
NORTHEAST LOUISIANA...AND EXTREME SOUTHEAST ARKANSAS.

.DAY ONE...TODAY AND TONIGHT

LIGHT RAIN MAY BRIEFLY MIX WITH LIGHT SLEET BEFORE CHANGING OVER TO
LIGHT SNOW TONIGHT. SNOWFALL ACCUMULATIONS WILL TOTAL LESS THAN ONE
INCH AND MAINLY ON GRASSY SURFACES. THE POTENT UPPER LEVEL LOW THAT
WILL BRING THE CHANCE FOR SNOW WILL SHIFT EAST INTO ALABAMA SUNDAY
MORNING ENDING THE SNOW. IN ADDITION...NORTHWEST WINDS OF 15 TO 20
MPH WITH GUSTS TO 30 MPH COMBINED WITH TEMPERATURES IN THE 30S WILL
MAKE IT FEEL BRISK TONIGHT INTO SUNDAY MORNING.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

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 FRIDAY.

LAZ024-026-MSZ059>066-072>074-011300-
CATAHOULA-CONCORDIA-JEFFERSON-ADAMS-FRANKLIN MS-LINCOLN-LAWRENCE-
JEFFERSON DAVIS-COVINGTON-JONES-MARION-LAMAR-FORREST-
655 AM CST SAT FEB 28 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH MISSISSIPPI AND EAST
CENTRAL LOUISIANA.

.DAY ONE...TODAY AND TONIGHT

LIGHT RAIN MAY CHANGE OVER TO VERY LIGHT SNOW BEFORE TAPERING OFF
TONIGHT. NO SNOW ACCUMULATIONS ARE EXPECTED. OTHERWISE...THE
PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

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 FRIDAY.

FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE AT
WWW.SRH.NOAA.GOV/JAN. THIS INCLUDES THE GRAPHICAL HAZARDOUS
WEATHER OUTLOOK.

22

In the hours before

Local storm report, Feb 28, 9:48 AM CST, 5 hours 58 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>

Local storm report, Feb 28, 10:43 AM CST, 5 hours 3 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>

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 27, 7:47 PM CST	River Flood Warning	JAN	Carroll, Leflore	4 days
Feb 27, 8:24 PM CST	Severe Thunderstorm Warning	JAN	Clay, Webster	51 min
Feb 27, 8:45 PM CST	River Flood Warning	JAN	Clay	4 days
Feb 27, 9:09 PM CST	Severe Thunderstorm Warning	JAN	Clay, Lowndes	48 min
Feb 28, 12:25 AM CST	Flash Flood Warning	JAN	Carroll, Montgomery	3 hr
Feb 28, 3:45 AM CST	Severe Thunderstorm Warning	JAN	Lamar, Marion	31 min
Feb 28, 5:27 AM CST	Winter Weather Advisory	JAN	Attala, Bolivar, Carroll, Choctaw, Clarke, Clay and 27 more	27 hr
Feb 28, 7:52 AM CST	River Flood Warning	JAN	Lowndes	3 days
Feb 28, 8:13 AM CST	Areal Flood Warning	JAN	Lowndes	22 hr
Feb 28, 3:52 PM CST	Lake Wind Advisory	JAN	Adams, Attala, Bolivar, Carroll, Choctaw, Claiborne and 41 more	26 hr

Nearby

Winter Storm Warnings in Mississippi, 2009 Every winter storm warning in 2009

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.