Alert archive / Mississippi / Special Weather Statements in 2017

Special Weather Statement, NWS Mobile, AL

June 12, 2017Perry County, Mississippi

NWS Mobile, AL issued this special weather statement at Jun 12, 2017, 3:38 PM CDT for Perry County, Mississippi. It was in force for 52 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 12, 2017, 3:38 PM CDT (20:38 UTC)
Expired: Jun 12, 2017, 4:30 PM CDT
In force: 52 min
Issued by: NWS Mobile, AL

County Perry County, MS

The radar

The Mobile radar (KMOB), 81 km from the middle of the area, began a volume at 20:38 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

Jackson, MS (KJAN), launched 12:00Z, 8.6 hours before the alert went out and 179 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: 870 J/kg
Mixed-layer CIN: -83 J/kg
Mixed-layer LCL: 692 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: 14 m²/s²
0-3 km storm-relative helicity: 49 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 Mobile, AL wrote its last area forecast discussion before this special weather statement went out at Jun 12, 2:41 PM CDT, 57 minutes earlier.

Area forecast discussion, Jun 12, 2:41 PM CDT, 57 minutes before

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Hazardous weather outlook, Jun 12, 5:53 AM CDT, 9 hours 45 minutes before

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In the hours before

Special weather statement, Jun 12, 10:26 AM CDT, 5 hours 12 minutes before

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Special weather statement, Jun 12, 11:27 AM CDT, 4 hours 11 minutes before

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Special weather statement, Jun 12, 3:38 PM CDT, 0 minutes before

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The office that day

Everything else NWS Mobile, AL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 12, 10:46 AM CDT	Rip Current Statement	MOB	Baldwin, Mobile	19 hr
Jun 12, 11:27 AM CDT	Special Weather Statement	MOB	Escambia	63 min
Jun 12, 9:25 AM CDT	Special Weather Statement	MOB	Okaloosa, Santa Rosa	95 min
Jun 12, 10:08 AM CDT	Areal Flood Advisory	MOB	Okaloosa, Santa Rosa	2 hr
Jun 12, 10:26 AM CDT	Special Weather Statement	MOB	Santa Rosa	64 min

Nearby

Special Weather Statements in Mississippi, 2017 Every special weather statement 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.