Alert archive / Arkansas / Special Weather Statements in 2017

Special Weather Statement, NWS Memphis, TN

July 7, 2017Randolph County, Arkansas

NWS Memphis, TN issued this special weather statement at Jul 7, 2017, 9:28 PM CDT for Randolph County, Arkansas. It was in force for 32 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: Jul 7, 2017, 9:28 PM CDT (02:28 UTC)
Expired: Jul 7, 2017, 10:00 PM CDT
In force: 32 min
Issued by: NWS Memphis, TN

County Randolph County, AR

The radar

The Memphis radar (KNQA), 171 km from the middle of the area, began a volume at 02:31 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

Little Rock, AR (KBYH), launched 00:00Z, 2.5 hours before the alert went out and 211 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: 1356 J/kg
Mixed-layer CIN: -31 J/kg
Mixed-layer LCL: 1673 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 37 m²/s²
0-3 km storm-relative helicity: 99 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 Memphis, TN wrote its last area forecast discussion before this special weather statement went out at Jul 7, 9:06 PM CDT, 22 minutes earlier.

Area forecast discussion, Jul 7, 9:06 PM CDT, 22 minutes before

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Hazardous weather outlook, Jul 7, 2:47 PM CDT, 6 hours 41 minutes before

Hazardous Weather Outlook
National Weather Service Memphis TN
247 PM CDT Fri Jul 7 2017

ARZ008-009-017-018-026>028-035-036-048-049-058-MOZ113-115-
MSZ001>017-020>024-TNZ001>004-019>022-048>055-088>092-082200-
Alcorn-Benton MS-Benton TN-Calhoun-Carroll-Chester-Chickasaw-Clay-
Coahoma-Craighead-Crittenden-Crockett-Cross-DeSoto-Decatur-
Dunklin-Dyer-Fayette-Gibson-Greene-Hardeman-Hardin-Haywood-
Henderson-Henry-Itawamba-Lafayette-Lake-Lauderdale-Lawrence-
Lee AR-Lee MS-Madison-Marshall-McNairy-Mississippi-Monroe-Obion-
Panola-Pemiscot-Phillips-Poinsett-Pontotoc-Prentiss-Quitman-
Randolph-Shelby-St. Francis-Tallahatchie-Tate-Tippah-Tipton-
Tishomingo-Tunica-Union-Weakley-Yalobusha-
247 PM CDT Fri Jul 7 2017

This hazardous weather outlook is for portions of East Arkansas...
the Missouri Bootheel...North Mississippi...and West Tennessee.

.DAY ONE...This Afternoon and Tonight

A few strong thunderstorms will be possible along and north of
Interstate Forty tonight. Strong winds and brief periods of
locally heavy rainfall are possible.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated at this time.

JAB

In the hours before

Special weather statement, Jul 7, 9:28 PM CDT, 0 minutes before

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The office that day

Everything else NWS Memphis, TN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 8, 12:14 AM CDT	Special Weather Statement	MEG	Henry, Weakley	46 min
Jul 8, 12:15 AM CDT	Special Weather Statement	MEG	Dyer, Lauderdale	45 min
Jul 8, 12:49 AM CDT	Severe Thunderstorm Warning	MEG	Shelby, Tipton	41 min
Jul 8, 1:19 AM CDT	Special Weather Statement	MEG	Haywood, Lauderdale, Tipton	41 min
Jul 8, 1:22 AM CDT	Special Weather Statement	MEG	Lake, Obion	53 min
Jul 8, 1:25 AM CDT	Severe Thunderstorm Warning	MEG	Shelby, Tipton	50 min
Jul 8, 2:11 AM CDT	Flash Flood Warning	MEG	Fayette, Haywood, Lauderdale, Madison, Tipton	3 hr
Jul 8, 2:49 AM CDT	Special Weather Statement	MEG	Hardeman	41 min
Jul 8, 3:23 AM CDT	Special Weather Statement	MEG	Alcorn, Tippah	52 min
Jul 8, 12:22 PM CDT	Special Weather Statement	MEG	Clay	23 min
Jul 7, 10:00 PM CDT	Special Weather Statement	MEG	Randolph	30 min
Jul 7, 10:29 PM CDT	Special Weather Statement	MEG	Lawrence	31 min
Jul 8, 12:38 AM CDT	Special Weather Statement	MEG	Mississippi	52 min
Jul 8, 1:45 AM CDT	Special Weather Statement	MEG	Lawrence	45 min
Jul 8, 5:20 AM CDT	Special Weather Statement	MEG	St. Francis	40 min
Jul 8, 12:16 AM CDT	Special Weather Statement	MEG	Dunklin	44 min

Nearby

Special Weather Statements in Arkansas, 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.