Alert archive / Minnesota / Special Weather Statements in 2018

Special Weather Statement, NWS Twin Cities, MN

May 27, 2018Stevens County, Minnesota

NWS Twin Cities, MN issued this special weather statement at May 27, 2018, 8:52 AM CDT for Stevens County, Minnesota. It was in force for 23 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: May 27, 2018, 8:52 AM CDT (13:52 UTC)
Expired: May 27, 2018, 9:15 AM CDT
In force: 23 min
Issued by: NWS Twin Cities, MN

County Stevens County, MN

The radar

The Aberdeen radar (KABR), 183 km from the middle of the area, began a volume at 13:54 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

Minneapolis, MN (KMPX), launched 12:00Z, 1.9 hours before the alert went out and 204 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2680 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 3 m²/s²
0-3 km storm-relative helicity: 79 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 Twin Cities, MN wrote its last area forecast discussion before this special weather statement went out at May 27, 5:32 AM CDT, 3 hours 20 minutes earlier.

Area forecast discussion, May 27, 5:32 AM CDT, 3 hours 20 minutes before

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Hazardous weather outlook, May 27, 4:33 AM CDT, 4 hours 19 minutes before

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In the hours before

Special weather statement, May 27, 8:12 AM CDT, 40 minutes before

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Special weather statement, May 27, 8:20 AM CDT, 32 minutes before

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Special weather statement, May 27, 8:52 AM CDT, 0 minutes before

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The office that day

Everything else NWS Twin Cities, MN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 27, 8:12 AM CDT	Special Weather Statement	MPX	Swift	33 min
May 27, 8:20 AM CDT	Special Weather Statement	MPX	Stevens	25 min
May 27, 3:52 PM CDT	Excessive Heat Watch	MPX	Anoka, Carver, Dakota, Hennepin, Ramsey, Scott and 1 more	12 hr
May 27, 3:52 PM CDT	Heat Advisory	MPX	Blue Earth, Brown, Chippewa, Chisago, Faribault, Freeborn and 20 more	27 hr

Nearby

Special Weather Statements in Minnesota, 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.