Alert archive / Arkansas / Special Weather Statements in 2018

Special Weather Statement, NWS Little Rock, AR

August 17, 2018Pope County, Arkansas

NWS Little Rock, AR issued this special weather statement at Aug 17, 2018, 2:21 AM CDT for Pope County, Arkansas. It was in force for 24 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: Aug 17, 2018, 2:21 AM CDT (07:21 UTC)
Expired: Aug 17, 2018, 2:45 AM CDT
In force: 24 min
Issued by: NWS Little Rock, AR

County Pope County, AR

The radar

The Little Rock radar (KLZK), 94 km from the middle of the area, began a volume at 07:24 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 00:00Z, 7.4 hours before the alert went out and 175 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: 1344 J/kg
Mixed-layer CIN: -57 J/kg
Mixed-layer LCL: 1769 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 19 m²/s²
0-3 km storm-relative helicity: 51 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.6

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 Little Rock, AR wrote its last area forecast discussion before this special weather statement went out at Aug 17, 12:25 AM CDT, 1 hour 56 minutes earlier.

Area forecast discussion, Aug 17, 12:25 AM CDT, 1 hour 56 minutes before

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Hazardous weather outlook, Aug 16, 9:55 AM CDT, 16 hours 26 minutes before

Hazardous Weather Outlook
National Weather Service Little Rock AR
955 AM CDT Thu Aug 16 2018

ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-171000-
Boone-Marion-Baxter-Fulton-Sharp-Newton-Searcy-Stone-Izard-
Independence-Johnson-Pope-Van Buren-Cleburne-Jackson-Logan-Conway-
Faulkner-White-Woodruff-Scott-Yell-Perry-Polk-Montgomery-Garland-
Saline-Pulaski-Lonoke-Prairie-Monroe-Pike-Clark-Hot Spring-Grant-
Jefferson-Arkansas-Dallas-Cleveland-Lincoln-Desha-Ouachita-
Calhoun-Bradley-Drew-
955 AM CDT Thu Aug 16 2018

This Hazardous Weather Outlook is for a Large Part of Arkansas.

.DAY ONE...Today and Tonight

Scattered to numerous showers and thunderstorms are expected
later this afternoon and evening, especially across northern
sections of the state. A few storms will approach severe limits,
with gusty winds the primary concern.

The focus will then turn to the possibility of heavy rain tonight
and into Friday. An upper level impulse and a very moist airmass
will likely result in areas of heavy rain across the northern and
especially the northwest parts of the state.

.DAYS TWO THROUGH SEVEN...Friday Through Wednesday

Showers and thunderstorms with potentially heavy rain will be
ongoing across mainly the northern part of the state early
Friday. Localized flash flooding will remain a concern.

The unsettled weather pattern will continue into the weekend and
early next week, with chances for showers and thunderstorms each
day. Initially, precipitation will be concentrated over northern
and central sections of the state. As the week progresses, rain
will affect the southern counties as well.

The main headliner in the coming days will be the heavy rain
potential. Widespread two to four inch amounts are expected across
the northern and central counties, and there could be locally more.
Given this much rain, high water problems could become an issue.

.Spotter Information Statement...

Limited spotter activation may be required this afternoon and
evening.

&&

Visit NWS Little Rock on the web. Go to http://weather.gov/lzk.

In the hours before

Special weather statement, Aug 16, 11:34 PM CDT, 2 hours 47 minutes before

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Special weather statement, Aug 16, 11:37 PM CDT, 2 hours 44 minutes before

Special Weather Statement
National Weather Service Little Rock AR
1137 PM CDT THU AUG 16 2018

ARZ014-015-170500-
Stone AR-Izard AR-
1137 PM CDT THU AUG 16 2018

...SIGNIFICANT WEATHER ADVISORY FOR STONE AND SOUTHWESTERN IZARD
COUNTIES UNTIL MIDNIGHT CDT...

At 1137 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Blanchard Springs Campground to near
Mountain View to 8 miles northeast of Old Lexington. Movement was
east at 35 mph.

Nickel size hail and wind gusts of 50 to 55 mph will be possible with
these storms.

Locations impacted include...
Mountain View...                  Melbourne...
Brandenberg...                    Croker...
Lone Star...                      Gorby...
Gid...                            Herpel...
Lunenburg...                      Blanchard Springs Campground...
Guion...                          Allison...
Hanover...                        Rushing...
Turkey Creek...                   Mt Olive in Izard County...
Timbo...                          Gunner Pool Campground...
Barkshed Campground...            Newnata...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 3597 9182 3588 9184 3582 9187 3575 9186
      3572 9237 3598 9234 3597 9231 3600 9230
      3616 9199
TIME...MOT...LOC 0437Z 250DEG 31KT 3600 9225 3587 9215 3577 9227

Cooper

Local storm report, Aug 17, 12:17 AM CDT, 2 hours 4 minutes before

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Special weather statement, Aug 17, 1:08 AM CDT, 1 hour 13 minutes before

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Special weather statement, Aug 17, 1:31 AM CDT, 50 minutes before

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Special weather statement, Aug 17, 2:21 AM CDT, 0 minutes before

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The office that day

Everything else NWS Little Rock, AR issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 16, 7:08 PM CDT	Special Weather Statement	LZK	Logan	37 min
Aug 16, 7:17 PM CDT	Severe Thunderstorm Warning	LZK	Johnson, Logan	43 min
Aug 16, 8:00 PM CDT	Severe Thunderstorm Warning	LZK	Johnson, Pope	20 min
Aug 16, 8:38 PM CDT	Special Weather Statement	LZK	Marion	52 min
Aug 16, 10:04 PM CDT	Special Weather Statement	LZK	Pope	41 min
Aug 16, 10:09 PM CDT	Special Weather Statement	LZK	Fulton	51 min
Aug 16, 10:21 PM CDT	Flash Flood Warning	LZK	Baxter, Fulton, Izard	3 hr
Aug 16, 10:40 PM CDT	Special Weather Statement	LZK	Searcy	50 min
Aug 16, 10:43 PM CDT	Special Weather Statement	LZK	Pope	47 min
Aug 16, 10:58 PM CDT	Special Weather Statement	LZK	Marion	47 min
Aug 16, 10:59 PM CDT	Special Weather Statement	LZK	Conway	31 min
Aug 16, 11:02 PM CDT	Special Weather Statement	LZK	Sharp	43 min
Aug 16, 11:19 PM CDT	Special Weather Statement	LZK	Cleburne	41 min
Aug 16, 11:24 PM CDT	Special Weather Statement	LZK	Independence	51 min
Aug 16, 11:31 PM CDT	Flash Flood Warning	LZK	Fulton, Sharp	3 hr
Aug 16, 11:34 PM CDT	Special Weather Statement	LZK	Izard	26 min
Aug 16, 11:37 PM CDT	Special Weather Statement	LZK	Stone	23 min
Aug 17, 1:08 AM CDT	Special Weather Statement	LZK	Jackson	22 min
Aug 17, 1:31 AM CDT	Special Weather Statement	LZK	Pope	44 min
Aug 17, 4:25 AM CDT	Special Weather Statement	LZK	Lonoke	35 min
Aug 17, 4:27 AM CDT	Special Weather Statement	LZK	Van Buren	18 min
Aug 17, 5:00 AM CDT	Special Weather Statement	LZK	Conway	30 min
Aug 17, 5:03 AM CDT	Special Weather Statement	LZK	Arkansas	42 min
Aug 17, 5:55 AM CDT	Special Weather Statement	LZK	Faulkner	20 min
Aug 17, 6:17 AM CDT	Special Weather Statement	LZK	Faulkner	43 min
Aug 17, 7:17 AM CDT	Special Weather Statement	LZK	Faulkner	43 min
Aug 17, 8:10 AM CDT	Areal Flood Warning	LZK	Conway, Faulkner, Van Buren	3 hr
Aug 17, 8:30 AM CDT	Flash Flood Warning	LZK	Faulkner, Van Buren	3 hr
Aug 17, 1:02 PM CDT	Special Weather Statement	LZK	Jefferson	43 min
Aug 17, 1:36 PM CDT	Severe Thunderstorm Warning	LZK	Arkansas, Cleveland, Jefferson, Lincoln	39 min
Aug 17, 1:56 PM CDT	Special Weather Statement	LZK	Dallas	34 min
Aug 17, 2:07 PM CDT	Special Weather Statement	LZK	Polk	23 min
Aug 17, 2:29 PM CDT	Special Weather Statement	LZK	Polk	31 min
Aug 17, 2:32 PM CDT	Special Weather Statement	LZK	Polk	28 min
Aug 17, 3:09 PM CDT	Special Weather Statement	LZK	Ouachita	36 min

Nearby

Special Weather Statements in Arkansas, 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.