Alert archive / Kansas / Flash Flood Watches in 2008

Flash Flood Watch 2, NWS Topeka, KS

May 23, 20084 counties in Kansas

NWS Topeka, KS issued this flash flood watch at May 23, 2008, 3:23 PM CDT for 4 counties in Kansas. It took effect at May 23, 2008, 10:00 PM CDT. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued
May 23, 2008, 3:23 PM CDT (20:23 UTC)
In effect from
May 23, 2008, 10:00 PM CDT
Expired
May 24, 2008, 3:05 AM CDT
In force
5 hr
Issued by
NWS Topeka, KS
Flood severity
None

Counties Cloud County, KS, Marshall County, KS, Republic County, KS, Washington County, KS

The radar

The Topeka radar (KTWX), 117 km from the middle of the area, began a volume at 20:23 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

Topeka, KS (KTOP), launched 12:00Z, 8.4 hours before the alert went out and 158 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, Topeka, KS at 12:00Z on 2008-05-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Topeka, KS at 12:00Z on 2008-05-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 199 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
810 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
199 m²/s²
0-3 km storm-relative helicity
263 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 watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Topeka, KS wrote its last area forecast discussion before this flash flood watch went out at May 23, 3:12 PM CDT, 11 minutes earlier.

Area forecast discussion, May 23, 3:12 PM CDT, 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, May 23, 12:06 PM CDT, 3 hours 17 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>

In the hours before

Local storm report, May 23, 9:23 AM CDT, 6 hours before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TOPEKA KS
923 AM CDT FRI MAY 23 2008

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

0921 AM     HAIL             CONCORDIA               39.57N 97.66W
05/23/2008  E0.50 INCH       CLOUD              KS   COUNTY OFFICIAL

            ESTIMATED DIME SIZED HAIL.

&&

AW
Special weather statement, May 23, 9:45 AM CDT, 5 hours 38 minutes before
SIGNIFICANT WEATHER ALERT
NATIONAL WEATHER SERVICE TOPEKA KS
945 AM CDT FRI MAY 23 2008

KSZ008-009-020-231530-
CLOUD-REPUBLIC-WASHINGTON-
945 AM CDT FRI MAY 23 2008

THROUGH 1030 AM CDT...A CLUSTER OF THUNDERSTORMS WILL MOVE NORTHEAST
AT 32 MPH ACROSS PORTIONS OF REPUBLIC...WASHINGTON AND CLOUD
COUNTIES. NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THIS
CLUSTER OF STORMS IS CAPABLE OF PRODUCING PENNY SIZE HAIL AND
TORRENTIAL RAINFALL. SOME LOCATIONS THAT COULD BE AFFECTED INCLUDE
AGENDA...CUBA...MUNDEN...NORWAY...HADDAM...BELLEVILLE...NARKA...
MORROWVILLE...MAHASKA AND HOLLENBURG.

STAY ALERT TO THE WEATHER IN CASE A WARNING IS ISSUED.

KONOP
Special weather statement, May 23, 10:17 AM CDT, 5 hours 6 minutes before
SIGNIFICANT WEATHER ALERT
NATIONAL WEATHER SERVICE TOPEKA KS
1017 AM CDT FRI MAY 23 2008

KSZ008-009-231545-
REPUBLIC-WASHINGTON-
1017 AM CDT FRI MAY 23 2008

THROUGH 1045 AM CDT...A LINE OF STRONG THUNDERSTORMS WILL MOVE
NORTHEAST AT 35 MPH ACROSS NORTHERN REPUBLIC AND NORTHERN WASHINGTON
COUNTIES. NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THESE
STORMS ARE CAPABLE OF PRODUCING PENNY SIZE HAIL AND VERY HEAVY RAIN.
SOME LOCATIONS THAT COULD BE AFFECTED INCLUDE
MUNDEN...NARKA...MAHASKA...WASHINGTON...MORROWVILLE AND HOLLENBURG.

The office that day

Everything else NWS Topeka, KS issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 22, 7:26 PM CDTAreal Flood WarningTOPJackson, Riley47 days
May 22, 7:40 PM CDTAreal Flood WarningTOPJefferson, Ottawa79 days

Nearby

Flash Flood Watches in Kansas, 2008Every flash flood watch in 2008

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.