Alert archive / Mississippi / Flash Flood Warnings in 2026

Flash Flood Warning 45, NWS New Orleans, LA

May 28, 2026Hancock County, Pearl River County, Mississippi

NWS New Orleans, LA issued this flash flood warning at May 28, 2026, 10:59 AM CDT for Hancock County, Pearl River County, Mississippi. It was in force for 3 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
May 28, 2026, 10:59 AM CDT (15:59 UTC)
Expired
May 28, 2026, 2:00 PM CDT
In force
3 hr
Issued by
NWS New Orleans, LA
Area
Storm-based polygon
Flood severity
None

Counties Hancock County, MS, Pearl River County, MS

The radar

The Hammond radar (KHDC), 84 km from the middle of the area, began a volume at 16:01 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

Slidell Radar S, LA (KSIL), launched 12:00Z, 4.0 hours before the alert went out and 40 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, Slidell Radar S, LA at 12:00Z on 2026-05-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2534 joules per kilogram.LCLEL10008507005003002001001 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, Slidell Radar S, LA at 12:00Z on 2026-05-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 116 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
2534 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
481 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
116 m²/s²
0-3 km storm-relative helicity
207 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 flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS New Orleans, LA wrote its last area forecast discussion before this flash flood warning went out at May 28, 5:36 AM CDT, 5 hours 23 minutes earlier.

Area forecast discussion, May 28, 5:36 AM CDT, 5 hours 23 minutes before
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In the hours before

Special weather statement, May 28, 7:41 AM CDT, 3 hours 18 minutes before
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<body>
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    <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>
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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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Local storm report, May 28, 7:48 AM CDT, 3 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>
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Local storm report, May 28, 7:53 AM CDT, 3 hours 6 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 New Orleans, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 28, 6:39 AM CDTSpecial Marine WarningLIX66 min
May 28, 7:14 AM CDTSpecial Marine WarningLIX61 min
May 28, 7:41 AM CDTSpecial Weather StatementLIXTangipahoa, Washington64 min
May 28, 9:47 AM CDTSpecial Marine WarningLIX28 min
May 28, 11:02 AM CDTSpecial Marine WarningLIX58 min
May 28, 11:09 AM CDTAreal Flood AdvisoryLIXJefferson, Orleans, Saint Bernard3 hr
May 28, 11:26 AM CDTFlash Flood WarningLIXOrleans, Saint Bernard82 min
May 28, 9:01 AM CDTAreal Flood AdvisoryLIXPearl River3 hr
May 28, 9:54 AM CDTAreal Flood AdvisoryLIXHancock, Pearl River3 hr
May 28, 10:10 AM CDTRiver Flood WarningLIXPearl River57 hr
May 28, 10:23 AM CDTFlash Flood WarningLIXPearl River4 hr
May 28, 10:48 AM CDTRiver Flood WarningLIXPearl River47 hr
May 28, 11:36 AM CDTFlash Flood Warning Considerable damage threatLIXHancock, Pearl River5 hr
May 28, 11:54 AM CDTAreal Flood AdvisoryLIXHarrison, Jackson3 hr
May 28, 12:24 PM CDTRiver Flood WarningLIXJackson5 days
May 28, 12:55 PM CDTRiver Flood WarningLIXHarrison56 hr
May 28, 3:12 PM CDTAreal Flood AdvisoryLIXJackson3 hr
May 28, 3:56 PM CDTFlash Flood WarningLIXJackson3 hr
May 28, 5:16 PM CDTAreal Flood WarningLIXHancock, Pearl River3 hr

Nearby

Flash Flood Warnings in Mississippi, 2026Every flash flood warning in 2026

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.