Alert archive / Missouri / Special Weather Statements in 2018

Special Weather Statement, NWS Quad Cities, IA

June 28, 2018Scotland County, Missouri

NWS Quad Cities, IA issued this special weather statement at Jun 28, 2018, 6:31 AM CDT for Scotland County, Missouri. It was in force for 44 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 28, 2018, 6:31 AM CDT (11:31 UTC)
Expired: Jun 28, 2018, 7:15 AM CDT
In force: 44 min
Issued by: NWS Quad Cities, IA

County Scotland County, MO

The radar

The Quad Cities radar (KDVN), 183 km from the middle of the area, began a volume at 11:31 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

Lincoln, IL (KILX), launched 00:00Z, 11.5 hours before the alert went out and 307 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: 296 J/kg
Mixed-layer CIN: -218 J/kg
Mixed-layer LCL: 1354 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 36 m²/s²
0-3 km storm-relative helicity: 149 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

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

NWS Quad Cities, IA wrote its last area forecast discussion before this special weather statement went out at Jun 28, 6:08 AM CDT, 23 minutes earlier.

Area forecast discussion, Jun 28, 6:08 AM CDT, 23 minutes before

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Hazardous weather outlook, Jun 28, 5:10 AM CDT, 1 hour 21 minutes before

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In the hours before

Special weather statement, Jun 28, 2:03 AM CDT, 4 hours 28 minutes before

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Special weather statement, Jun 28, 4:49 AM CDT, 1 hour 42 minutes before

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Special weather statement, Jun 28, 6:31 AM CDT, 0 minutes before

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The office that day

Everything else NWS Quad Cities, IA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 28, 12:57 PM CDT	Special Weather Statement	DVN	Henry, Jefferson, Keokuk, Van Buren, Washington	18 min
Jun 28, 1:12 PM CDT	Severe Thunderstorm Warning	DVN	Jefferson, Keokuk, Van Buren	63 min
Jun 28, 1:54 PM CDT	Severe Thunderstorm Warning	DVN	Henry, Jefferson, Lee, Van Buren, Washington	66 min
Jun 28, 2:29 PM CDT	Severe Thunderstorm Warning	DVN	Des Moines, Lee	46 min
Jun 28, 3:31 PM CDT	Excessive Heat Warning	DVN	Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more	54 hr
Jun 28, 3:08 PM CDT	Severe Thunderstorm Warning	DVN	Henderson, McDonough, Warren	52 min

Nearby

Special Weather Statements in Missouri, 2018 Every special weather statement 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.