Alert archive / Missouri / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 217, NWS Kansas City, MO

July 18, 20105 counties in Missouri

NWS Kansas City, MO issued this severe thunderstorm warning at Jul 18, 2010, 5:27 AM CDT for 5 counties in Missouri. It was in force for 48 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 18, 2010, 5:27 AM CDT (10:27 UTC)
Expired: Jul 18, 2010, 6:15 AM CDT
In force: 48 min
Issued by: NWS Kansas City, MO
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Adair County, MO, Chariton County, MO, Linn County, MO, Macon County, MO, Randolph County, MO

The radar

The Pleasant Hill radar (KEAX), 169 km from the middle of the area, began a volume at 10:28 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 18, 3:05 AM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 10.5 hours before the alert went out and 280 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: 529 J/kg
Mixed-layer CIN: -139 J/kg
Mixed-layer LCL: 1805 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: -10 m²/s²
0-3 km storm-relative helicity: -6 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 severe thunderstorm warning 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 severe thunderstorm warning went out at Jul 18, 4:24 AM CDT, 1 hour 3 minutes earlier.

Area forecast discussion, Jul 18, 4:24 AM CDT, 1 hour 3 minutes before

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Hazardous weather outlook, Jul 17, 5:33 PM CDT, 11 hours 54 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
533 PM CDT SAT JUL 17 2010

KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040-
043>046-053-054-182245-
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-
533 PM CDT SAT JUL 17 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHWEST...NORTH CENTRAL AND
WEST CENTRAL MISSOURI...AS WELL AS EXTREME EASTERN KANSAS.

.DAY ONE...TONIGHT

HEAT INDICES WILL REMAIN FROM 105 TO 110 THROUGH 7 PM. OTHERWISE...
A WEAK DISTURBANCE DIVING SOUTH ALONG THE KANSAS AND MISSOURI BORDER
MAY ONCE AGAIN ALLOW FOR ISOLATED EARLY EVENING THUNDERSTORMS ANYWHERE
ACROSS THE OUTLOOK AREA. ANY STORMS THAT DEVELOP WILL BE CAPABLE OF
PRODUCING LOCALIZED DOWNBURST WINDS TO 70 MPH...QUARTER SIZE
HAIL...AND TORRENTIAL RAINFALL THAT COULD LEAD TO LOCALIZED FLOODING.
LATER TONIGHT...THUNDERSTORMS WHICH ARE DEVELOPING IN NORTHERN
NEBRASKA MAY MOVE SOUTHEAST INTO NORTHERN MISSOURI LATE TONIGHT... MAINLY
TO THE NORTH OF ROUTE 36. A FEW STORMS MAY BE STRONG TO SEVERE WITH
LARGE HAIL AND DAMAGING WINDS THE PRIMARY THREATS.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

THE STRONG TO SEVERE THUNDERSTORMS MAY BE ONGOING IN THE MORNING
ACROSS NORTHERN MISSOURI. THIS ACTIVITY MAY DIMINISH IN INTENSITY
DURING THE LATE MORNING HOURS...AND STRENGTHEN AGAIN DURING THE
AFTERNOON...WITH SEVERE WEATHER POSSIBLE ACROSS THE ENTIRE OUTLOOK
AREA. THE PRIMARY THREATS ARE DAMAGING WINDS AND LARGE HAIL.

FOR AREAS SOUTH OF THE MORNING THUNDERSTORMS COMPLEX...A REPEAT OF
HIGH HEAT AND HUMIDITY IS EXPECTED WITH HEAT INDICES LIKELY EXCEEDING
105 DEGREES ONCE AGAIN. A HEAT ADVISORY IS IN EFFECT FOR AREAS MAINLY
ALONG AND SOUTH OF INTERSTATE 70.

FOR SUNDAY NIGHT THROUGH TUESDAY MORNING...SEVERAL ADDITIONAL
THUNDERSTORM COMPLEXES ARE EXPECTED TO IMPACT NORTHERN MISSOURI AND
NORTHEAST KANSAS THROUGH THE PERIOD. STRONG TO SEVERE WIND GUSTS AND
LOCALLY HEAVY RAIN WILL ACCOMPANY EACH OF THESE SYSTEMS...WITH
COLLECTIVE SEVERAL DAY RAIN TOTALS POSSIBLY LEADING TO ADDITIONAL OR
RENEWED FLOODING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME...BUT IF ISOLATED
SEVERE THUNDERSTORMS DO DEVELOP...REPORTS OF SEVERE WEATHER OF
FLOODING RAINFALL ARE REQUESTED.

In the hours before

Local storm report, Jul 18, 3:14 AM CDT, 2 hours 13 minutes before

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Special weather statement, Jul 18, 3:56 AM CDT, 1 hour 31 minutes before

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Local storm report, Jul 18, 4:26 AM CDT, 1 hour 1 minute before

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Local storm report, Jul 18, 4:29 AM CDT, 58 minutes before

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Local storm report, Jul 18, 5:10 AM CDT, 17 minutes before

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Local storm report, Jul 18, 5:26 AM CDT, 1 minute before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 18, 1:33 AM CDT	Special Weather Statement	EAX	Atchison	27 min
Jul 18, 1:40 AM CDT	Severe Thunderstorm Warning	EAX	Atchison, Holt	35 min
Jul 18, 2:12 AM CDT	Severe Thunderstorm Warning	EAX	Andrew, Atchison, Holt, Nodaway	33 min
Jul 18, 2:34 AM CDT	Areal Flood Advisory	EAX	Atchison, Holt, Nodaway	4 hr
Jul 18, 2:41 AM CDT	Severe Thunderstorm Warning	EAX	Andrew, Atchison, DeKalb, Gentry, Holt, Nodaway and 1 more	49 min
Jul 18, 2:57 AM CDT	Special Weather Statement	EAX	Buchanan	33 min
Jul 18, 3:29 AM CDT	Severe Thunderstorm Warning	EAX	Andrew, Daviess, DeKalb, Gentry, Harrison, Nodaway and 1 more	31 min
Jul 18, 3:56 AM CDT	Special Weather Statement	EAX	Caldwell, Clinton, Daviess, DeKalb	49 min
Jul 18, 4:22 AM CDT	Severe Thunderstorm Warning	EAX	Caldwell, Carroll, Daviess, Grundy, Livingston	23 min
Jul 18, 4:39 AM CDT	Severe Thunderstorm Warning	EAX	Adair, Caldwell, Chariton, Grundy, Linn, Livingston and 2 more	51 min
Jul 18, 4:43 AM CDT	Severe Thunderstorm Warning	EAX	Putnam, Schuyler, Sullivan	47 min
Jul 18, 5:16 AM CDT	Severe Thunderstorm Warning	EAX	Adair, Putnam, Schuyler	29 min
Jul 18, 5:32 AM CDT	Severe Thunderstorm Warning	EAX	Schuyler	13 min
Jul 18, 6:01 AM CDT	Severe Thunderstorm Warning	EAX	Chariton, Howard, Randolph, Saline	44 min
Jul 18, 6:15 AM CDT	Severe Thunderstorm Warning	EAX	Macon, Randolph	30 min
Jul 18, 7:16 AM CDT	Special Weather Statement	EAX	Howard	29 min
Jul 18, 7:22 AM CDT	Severe Thunderstorm Warning	EAX	Cooper, Howard	23 min
Jul 18, 7:45 AM CDT	Severe Thunderstorm Warning	EAX	Cooper, Howard, Pettis, Saline	30 min
Jul 18, 3:48 PM CDT	Excessive Heat Warning	EAX	Bates, Cass, Clay, Henry, Jackson, Johnson and 2 more	52 hr
Jul 18, 3:48 PM CDT	Heat Advisory	EAX	Andrew, Buchanan, Caldwell, Carroll, Chariton, Clinton and 10 more	52 hr

Nearby

Severe Thunderstorm Warnings in Missouri, 2010 Every severe thunderstorm warning in 2010

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.