Alert archive / Missouri / Heat Advisories in 2018

Heat Advisory 9, NWS Springfield, MO

July 18, 201821 counties in Missouri; Bourbon County, Cherokee County, Crawford County, Kansas

NWS Springfield, MO issued this heat advisory at Jul 18, 2018, 2:29 PM CDT for 21 counties in Missouri; Bourbon County, Cherokee County, Crawford County, Kansas. It took effect at Jul 19, 2018, 12:00 PM CDT. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued: Jul 18, 2018, 2:29 PM CDT (19:29 UTC)
In effect from: Jul 19, 2018, 12:00 PM CDT
Expired: Jul 19, 2018, 7:04 PM CDT
In force: 7 hr
Issued by: NWS Springfield, MO

All 24 counties

Bourbon County, KS, Cherokee County, KS, Crawford County, KS, Barry County, MO, Barton County, MO, Benton County, MO, Cedar County, MO, Christian County, MO, Dade County, MO, Dallas County, MO, Douglas County, MO, Greene County, MO, Hickory County, MO, Jasper County, MO, Lawrence County, MO, McDonald County, MO, Newton County, MO, Ozark County, MO, Polk County, MO, St. Clair County, MO, Stone County, MO, Taney County, MO, Vernon County, MO, Webster County, MO

The radar

The Springfield radar (KSGF), 30 km from the middle of the area, began a volume at 19:30 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

Springfield, MO (KSGF), launched 12:00Z, 7.5 hours before the alert went out and 47 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: 798 J/kg
Mixed-layer CIN: -41 J/kg
Mixed-layer LCL: 861 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 112 m²/s²
0-3 km storm-relative helicity: 219 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 4.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this heat advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Springfield, MO wrote its last area forecast discussion before this heat advisory went out at Jul 18, 12:24 PM CDT, 2 hours 5 minutes earlier.

Area forecast discussion, Jul 18, 12:24 PM CDT, 2 hours 5 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 18, 2:21 PM CDT, 8 minutes before

Hazardous Weather Outlook
National Weather Service Springfield MO
221 PM CDT Wed Jul 18 2018

KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-191930-
Bourbon-Crawford-Cherokee-Benton-Morgan-Miller-Maries-Vernon-
St. Clair-Hickory-Camden-Pulaski-Phelps-Barton-Cedar-Polk-Dallas-
Laclede-Texas-Dent-Jasper-Dade-Greene-Webster-Wright-Newton-
Lawrence-Christian-Douglas-Howell-Shannon-McDonald-Barry-Stone-
Taney-Ozark-Oregon-
221 PM CDT Wed Jul 18 2018

This Hazardous Weather Outlook is for portions of the Missouri
Ozarks and extreme southeast Kansas.

.DAY ONE...This Afternoon and Tonight.

Weather hazards expected...

  Limited hail risk.
  Limited thunderstorm wind damage risk.
  Limited flooding risk.
  Limited lightning risk.
  Limited excessive heat risk.

DISCUSSION...

Scattered thunderstorms will develop this afternoon into this
evening. A few of the stronger storms will have the potential for
damaging winds and large hail to the size of quarters, mainly
along and west of Highway 65. Frequent cloud to ground lightning
strikes and brief heavy rainfall will also occur with the storms.

Heat index values in the upper 90s to near 100 are expected over
extreme southeastern Kansas and far southwestern Missouri into
early this evening.

A complex of storms is expected to develop across the central
Plains this evening and spread southeast overnight and start to
spread into the area late tonight. Heavy rainfall will occur with
the storms, and a localized flooding will be possible where
multiple storms can track over the same locations. A few strong
storms with damaging straight line winds will also be possible.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Thunderstorm may be on going across portions of the area along and
east of Highway 65 Thursday morning. This activity will spread
east and out of the area by Thursday afternoon. A few strong to
severe storms will be possible Thursday morning into early
Thursday afternoon. Gusty winds will be the primary risk. There
will also be a localized flooding risk mainly north of I-44 and
east of Highway 65.

Isolated afternoon and evening thunderstorms will be possible
Friday.

Heat index values of around 105 to near 110 are expected across
southeastern Kansas into southwestern Missouri Thursday. Heat
index values around 100 to near 105 degrees are expected across
the outlook area Friday.

.SPOTTER INFORMATION STATEMENT...

  Spotter activation will not be needed through tonight.

&&

More detailed information can be accessed at:
http://www.weather.gov/sgf/sitrep

This product in graphical format...along with other weather...
hydrological and climate information...at
http://www.weather.gov/sgf

Wise

In the hours before

Local storm report, Jul 18, 8:34 AM CDT, 5 hours 55 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
834 AM CDT WED JUL 18 2018

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

0800 AM     HEAVY RAIN       3 E LOWRY CITY          38.13N 93.66W
07/18/2018  M4.02 INCH       ST. CLAIR          MO   COCORAHS

            COCORAHS STATION MO-SR-1, 3 E LOWRY CITY.
            THE DURATION OF THE HEAVY RAIN EVENT WAS 24
            HOURS.

&&

BURCHFIELD

Local storm report, Jul 18, 10:00 AM CDT, 4 hours 29 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1000 AM CDT WED JUL 18 2018

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

0946 AM     HEAVY RAIN       WARSAW                  38.24N 93.39W
07/18/2018  M6.16 INCH       BENTON             MO   MESONET

            MESONET STATION WRSM7, WARSAW. THE DURATION
            OF THE HEAVY RAIN EVENT WAS 24 HOURS.

&&

BURCHFIELD

Local storm report, Jul 18, 11:05 AM CDT, 3 hours 24 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, Jul 18, 12:58 PM CDT, 1 hour 31 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1258 PM CDT WED JUL 18 2018

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

1140 AM     FLASH FLOOD      LINN CREEK              38.04N 92.71W
07/18/2018                   CAMDEN             MO   EMERGENCY MNGR

            LINN CREEK FLOODED ACROSS HIGHWAY 54 IN LINN
            CREEK, MO.

&&

KP

The office that day

Everything else NWS Springfield, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 18, 6:37 AM CDT	Areal Flood Advisory	SGF	Benton	6 hr
Jul 18, 7:27 AM CDT	Flash Flood Warning	SGF	Benton	6 hr
Jul 18, 9:47 AM CDT	Areal Flood Advisory	SGF	Camden	6 hr
Jul 18, 11:01 AM CDT	Flash Flood Warning	SGF	Camden	6 hr
Jul 18, 6:11 PM CDT	Flash Flood Warning	SGF	Oregon	6 hr

Nearby

Heat Advisories in Missouri, 2018 Heat Advisories in Kansas, 2018 Every heat advisory in 2018

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.