Alert archive / Arkansas / Special Weather Statements in 2017

Special Weather Statement, NWS Memphis, TN

June 1, 2017Randolph County, Arkansas

NWS Memphis, TN issued this special weather statement at Jun 1, 2017, 2:13 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
Jun 1, 2017, 2:13 PM CDT (19:13 UTC)
Expired
Jun 1, 2017, 2:45 PM CDT
In force
32 min
Issued by
NWS Memphis, TN

County Randolph County, AR

The radar

The Memphis radar (KNQA), 173 km from the middle of the area, began a volume at 19:15 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, 7.2 hours before the alert went out and 234 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-pSkew-T log-p diagram, Springfield, MO at 12:00Z on 2017-06-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 410 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 12:00Z on 2017-06-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 80 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
410 J/kg
Mixed-layer CIN
-95 J/kg
Mixed-layer LCL
1312 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
80 m²/s²
0-3 km storm-relative helicity
83 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 Jun 1, 1:03 PM CDT, 1 hour 10 minutes earlier.

Area forecast discussion, Jun 1, 1:03 PM CDT, 1 hour 10 minutes before
Area Forecast Discussion
National Weather Service Memphis TN
103 PM CDT Thu Jun 1 2017

.UPDATE...

Updated for the 18z Aviation Discussion.

&&

.PREV DISCUSSION... /issued 920 AM CDT Thu Jun 1 2017/

Morning forecast continues to be on track with no updates
expected at this time.

Pop-up showers/storms are anticipated to begin forming over the
next few hours.

JAB

&&

.PREV DISCUSSION... /issued 400 AM CDT Thu Jun 1 2017/

08Z surface analysis places a weak cold front from Northwest
Missouri back through Southeast Missouri, Southern Illinois, and
Kentucky. Isolated showers and thunderstorms over far Northwest
Tennessee has diminished overnight as a shortwave trough has moved
east of the Lower Mississippi Valley. As of 3 AM CDT,
temperatures across the Mid-South range from the 60s to around 70
degrees.

A weak upper level trough over Texas will move northeast today
while a weakening cold front will begin to drop south towards the
Mid-South this afternoon into tonight. A warm, moist, and unstable
airmass with surface based CAPE values approaching 2000 J/kg, and
relatively weak shear aloft (0-6 km bulk shear values around 20
kts) suggest convective activity today will be driven
predominantly by convective temperatures being reached during peak
heating. Isolated to scattered pulse type showers and
thunderstorms are anticipated with the potential for a few strong
to perhaps a severe thunderstorm possible. Damaging winds will be
the primary threat along with a potential for localized heavy
rainfall. Any lingering convective activity should diminish this
evening with weakening instability. Isolated to scattered
showers and thunderstorms will be possible again on Friday with
shear remaining relatively weak with coverage diminishing somewhat
Friday night. Highs will be predominantly in the middle to upper
80s for this afternoon and Friday.

Long term models indicate better chances for showers and
thunderstorms as an upper level trough axis moves across the Lower
Mississippi Valley into early next week. Rain chances will
gradually diminish into next Tuesday and Wednesday as high
pressure builds in across the area bringing slightly cooler
temperatures.

CJC

&&

.AVIATION...18z

VFR conditions should prevail at all terminals through the period.
Isolated thunderstorms will be possible near all sites this
afternoon and a VCTS has been added. Convection should diminish
this evening.

Winds should remain light and variable through early Friday
morning. Winds will increase from the east and southeast by later
Friday morning.

JLH

&&

.MEG WATCHES/WARNINGS/ADVISORIES...
AR...None.
MO...None.
MS...None.
TN...None.

&&
Hazardous weather outlook, Jun 1, 4:06 AM CDT, 10 hours 7 minutes before
Hazardous Weather Outlook
National Weather Service Memphis TN
406 AM CDT Thu Jun 1 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>092-021200-
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-
406 AM CDT Thu Jun 1 2017

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

.DAY ONE...Today and Tonight

A few strong thunderstorms containing gusty winds and localized
heavy rainfall are possible this afternoon into this evening
across the Mid-South.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated at this time.

In the hours before

Special weather statement, Jun 1, 1:11 PM CDT, 1 hour 2 minutes before
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Local storm report, Jun 1, 1:19 PM CDT, 54 minutes before
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Special weather statement, Jun 1, 1:27 PM CDT, 46 minutes before
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Local storm report, Jun 1, 1:29 PM CDT, 44 minutes before
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Special weather statement, Jun 1, 1:59 PM CDT, 14 minutes before
Special Weather Statement
National Weather Service Memphis TN
159 PM CDT THU JUN 1 2017

ARZ036-011930-
Crittenden AR-
159 PM CDT THU JUN 1 2017

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED UNTIL 230 PM CDT
FOR...

Central Crittenden County in eastern Arkansas...

At 158 PM CDT...a strong thunderstorm producing penny size hail
larger and winds up to 50 mph was located near West Memphis, moving
west at 15 mph.

Very heavy rain along with continuous cloud to ground lightning are
also possible with this thunderstorm.

People in central Crittenden County should monitor this storm
closely.

LAT...LON 3511 9040 3528 9039 3518 9017 3510 9019
TIME...MOT...LOC 1858Z 102DEG 12KT 3515 9025

JOHNSON
Special weather statement, Jun 1, 2:13 PM CDT, 0 minutes before
Special Weather Statement
National Weather Service Memphis TN
213 PM CDT THU JUN 1 2017

ARZ008-011945-
Randolph AR-
213 PM CDT THU JUN 1 2017

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED UNTIL 245 PM CDT
FOR...

Northwestern Randolph County in eastern Arkansas...

At 213 PM CDT...strong thunderstorms producing pea size hail or
larger and winds at least 40 mph was located near Dalton, or 16
miles northwest of Pocahontas. These storms are nearly stationary.

Very heavy rain is also possible with this thunderstorm.

People in northwestern Randolph County should monitor this storm
closely.

LAT...LON 3650 9080 3637 9127 3638 9129 3639 9129
      3639 9131 3642 9131 3642 9135 3647 9136
      3648 9140 3650 9141
TIME...MOT...LOC 1913Z 085DEG 9KT 3646 9113

JOHNSON

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 1, 10:55 AM CDTRiver Flood AdvisoryMEGDyer, Lake, Lauderdale5 days
Jun 1, 12:50 PM CDTSpecial Weather StatementMEGShelby40 min
Jun 1, 5:21 PM CDTSpecial Weather StatementMEGHenry39 min
Jun 1, 5:47 PM CDTSevere Thunderstorm WarningMEGBenton, Henry28 min
Jun 1, 6:03 PM CDTSpecial Weather StatementMEGLauderdale42 min
Jun 1, 6:39 PM CDTSpecial Weather StatementMEGCarroll51 min
May 31, 10:33 PM CDTSpecial Weather StatementMEGClay42 min
Jun 1, 1:11 PM CDTSpecial Weather StatementMEGSt. Francis34 min
Jun 1, 1:27 PM CDTSpecial Weather StatementMEGCrittenden33 min
Jun 1, 1:59 PM CDTSpecial Weather StatementMEGCrittenden31 min
Jun 1, 4:44 PM CDTSpecial Weather StatementMEGGreene46 min
Jun 1, 5:18 PM CDTSpecial Weather StatementMEGMississippi42 min
Jun 1, 2:31 PM CDTSpecial Weather StatementMEGPemiscot29 min
Jun 1, 5:22 PM CDTSpecial Weather StatementMEGDunklin38 min

Nearby

Special Weather Statements in Arkansas, 2017Every 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.