Alert archive / Missouri / Heat Advisories in 2017

Heat Advisory 1, NWS Kansas City, MO

June 16, 201719 counties in Missouri; 6 counties in Kansas

NWS Kansas City, MO issued this heat advisory at Jun 16, 2017, 3:25 AM CDT for 19 counties in Missouri; 6 counties in Kansas. It took effect at Jun 17, 2017, 12:00 PM CDT. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Jun 16, 2017, 3:25 AM CDT (08:25 UTC)
In effect from
Jun 17, 2017, 12:00 PM CDT
Expired
Jun 17, 2017, 3:55 PM CDT
In force
4 hr
Issued by
NWS Kansas City, MO
All 25 counties

Atchison County, KS, Johnson County, KS, Leavenworth County, KS, Linn County, KS, Miami County, KS, Wyandotte County, KS, Bates County, MO, Buchanan County, MO, Caldwell County, MO, Carroll County, MO, Cass County, MO, Chariton County, MO, Clay County, MO, Clinton County, MO, Cooper County, MO, Henry County, MO, Howard County, MO, Jackson County, MO, Johnson County, MO, Lafayette County, MO, Livingston County, MO, Pettis County, MO, Platte County, MO, Ray County, MO, Saline County, MO

The radar

The Pleasant Hill radar (KEAX), 34 km from the middle of the area, began a volume at 08:28 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 (KFOE), launched 00:00Z, 8.4 hours before the alert went out and 134 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 00:00Z on 2017-06-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1569 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 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 00:00Z on 2017-06-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 32 square meters per square second.1939Sfc1 km3 km6 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
1569 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
1423 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
32 m²/s²
0-3 km storm-relative helicity
88 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.0

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 Kansas City, MO wrote its last area forecast discussion before this heat advisory went out at Jun 16, 12:17 AM CDT, 3 hours 8 minutes earlier.

Area forecast discussion, Jun 16, 12:17 AM CDT, 3 hours 8 minutes before
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Hazardous weather outlook, Jun 15, 4:58 AM CDT, 22 hours 27 minutes before
Hazardous Weather Outlook
National Weather Service Kansas City/Pleasant Hill MO
458 AM CDT Thu Jun 15 2017

KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040-
043>046-053-054-161000-
Atchison KS-Miami-Linn KS-Doniphan-Leavenworth-Wyandotte-Johnson KS-
Atchison MO-Nodaway-Worth-Gentry-Harrison-Mercer-Putnam-Schuyler-
Holt-Andrew-De Kalb-Daviess-Grundy-Sullivan-Adair-Buchanan-Clinton-
Caldwell-Livingston-Linn MO-Macon-Platte-Clay-Ray-Carroll-Chariton-
Randolph-Jackson-Lafayette-Saline-Howard-Cass-Johnson MO-Pettis-
Cooper-Bates-Henry-
458 AM CDT Thu Jun 15 2017

This hazardous weather outlook is for northwest...north central and
west central Missouri...as well as extreme eastern Kansas.

.DAY ONE...Today and Tonight

Temperatures will climb into the lower to mid 90s with heat index
values ranging from 98 to 102 degrees this afternoon creating some
potential for heat related issues. Storms are expected to develop
over Kansas and Iowa in the late afternoon and move into our area
after sunset. Some of these storms could be strong to severe with
damaging winds being the main threat.

More detailed information can be accessed at...
https://www.weather.gov/eax/hwo

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

The pattern of hot and humid daytime hours with potential strong to
severe storms pushing through the area overnight will continue for
Friday and Saturday evenings. The dewpoints on Saturday will increase
into the mid 70s creating heat index values from 100 to 105 degrees
in the afternoon. This would be the hottest heat index temperatures
of the year so far so precautions may need to be taken for those
sensitive to heat related illnesses. The active storm pattern will
end Sunday morning with no significant hazardous weather expected
through Wednesday.

 More detailed information can be accessed at...
 https://www.weather.gov/eax/hwo

In the hours before

Local storm report, Jun 16, 12:10 AM CDT, 3 hours 15 minutes before
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Local storm report, Jun 16, 12:16 AM CDT, 3 hours 9 minutes before
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Special weather statement, Jun 16, 12:44 AM CDT, 2 hours 41 minutes before
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Local storm report, Jun 16, 12:59 AM CDT, 2 hours 26 minutes before
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Local storm report, Jun 16, 1:00 AM CDT, 2 hours 25 minutes before
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Local storm report, Jun 16, 3:13 AM CDT, 12 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 15, 8:58 PM CDTSevere Thunderstorm WarningEAXClay, Platte32 min
Jun 15, 9:17 PM CDTSpecial Weather StatementEAXAtchison28 min
Jun 15, 9:28 PM CDTSevere Thunderstorm WarningEAXClay, Jackson, Platte, Ray32 min
Jun 15, 9:35 PM CDTSevere Thunderstorm WarningEAXAtchison, Holt, Nodaway25 min
Jun 15, 9:55 PM CDTSpecial Weather StatementEAXNodaway35 min
Jun 15, 9:58 PM CDTSevere Thunderstorm WarningEAXClay, Jackson, Lafayette, Ray47 min
Jun 15, 10:42 PM CDTSpecial Weather StatementEAXSaline48 min
Jun 15, 11:18 PM CDTSpecial Weather StatementEAXGrundy, Linn, Mercer, Sullivan42 min
Jun 15, 11:23 PM CDTSpecial Weather StatementEAXSaline52 min
Jun 16, 12:00 AM CDTSpecial Weather StatementEAXAdair, Chariton, Linn, Macon, Randolph, Sullivan45 min
Jun 16, 12:44 AM CDTSpecial Weather StatementEAXAdair, Macon, Randolph, Schuyler46 min
Jun 15, 8:29 PM CDTSpecial Weather StatementEAXJohnson46 min
Jun 15, 8:36 PM CDTSevere Thunderstorm WarningEAXAtchison, Leavenworth39 min
Jun 15, 9:21 PM CDTSpecial Weather StatementEAXJohnson39 min

Nearby

Heat Advisories in Missouri, 2017Heat Advisories in Kansas, 2017Every heat advisory in 2017

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.