Alert archive / Missouri / Special Weather Statements in 2018

Special Weather Statement, NWS St. Louis, MO

June 2, 2018Iron County, Saint Francois County, Missouri

NWS St. Louis, MO issued this special weather statement at Jun 2, 2018, 6:47 PM CDT for Iron County, Saint Francois County, Missouri. It was in force for 58 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 2, 2018, 6:47 PM CDT (23:47 UTC)
Expired: Jun 2, 2018, 7:45 PM CDT
In force: 58 min
Issued by: NWS St. Louis, MO

Counties Iron County, MO, Saint Francois County, MO

The radar

The St Louis radar (KLSX), 122 km from the middle of the area, began a volume at 23:50 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, 11.8 hours before the alert went out and 292 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: 2602 J/kg
Mixed-layer CIN: -176 J/kg
Mixed-layer LCL: 909 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 26 m²/s²
0-3 km storm-relative helicity: 63 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

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 St. Louis, MO wrote its last area forecast discussion before this special weather statement went out at Jun 2, 6:32 PM CDT, 15 minutes earlier.

Area forecast discussion, Jun 2, 6:32 PM CDT, 15 minutes before

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Hazardous weather outlook, Jun 2, 3:46 PM CDT, 3 hours 1 minute before

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In the hours before

Special weather statement, Jun 2, 5:57 PM CDT, 50 minutes before

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Special weather statement, Jun 2, 6:47 PM CDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 2, 6:30 AM CDT	Special Weather Statement	LSX	Knox, Shelby	45 min
Jun 2, 7:12 AM CDT	Severe Thunderstorm Warning	LSX	Monroe, Shelby	48 min
Jun 2, 8:06 AM CDT	Special Weather Statement	LSX	Audrain, Ralls	39 min
Jun 2, 8:10 AM CDT	Severe Thunderstorm Warning	LSX	Callaway, Cole, Osage	50 min
Jun 2, 8:32 AM CDT	Severe Thunderstorm Warning	LSX	Audrain, Callaway, Lincoln, Marion, Montgomery, Pike and 1 more	43 min
Jun 2, 9:12 AM CDT	Special Weather Statement	LSX	Franklin, Gasconade, Lincoln, Montgomery, Osage, Warren	48 min
Jun 2, 10:02 AM CDT	Special Weather Statement	LSX	Crawford, Franklin, Gasconade, Saint Louis, Washington	43 min
Jun 2, 10:46 AM CDT	Special Weather Statement	LSX	Crawford, Iron, Washington	44 min
Jun 2, 11:29 AM CDT	Special Weather Statement	LSX	Sainte Genevieve, Saint Francois	46 min
Jun 2, 5:57 PM CDT	Special Weather Statement	LSX	Reynolds	63 min
Jun 2, 6:53 PM CDT	Special Weather Statement	LSX	Reynolds	67 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.