Alert archive / Arkansas / Special Weather Statements in 2014

Special Weather Statement, NWS Tulsa, OK

July 8, 2014Madison County, Arkansas

NWS Tulsa, OK issued this special weather statement at Jul 8, 2014, 5:07 PM CDT for Madison County, Arkansas. 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
Jul 8, 2014, 5:07 PM CDT (22:07 UTC)
Expired
Jul 8, 2014, 5:30 PM CDT
In force
23 min
Issued by
NWS Tulsa, OK

County Madison County, AR

The radar

The Western Arkansas radar (KSRX), 106 km from the middle of the area, began a volume at 22:10 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 12:00Z, 10.1 hours before the alert went out and 347 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, Little Rock, AR at 12:00Z on 2014-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1296 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, Little Rock, AR at 12:00Z on 2014-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 65 square meters per square second.1939Sfc1 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
1296 J/kg
Mixed-layer CIN
-91 J/kg
Mixed-layer LCL
1067 m above ground
0-6 km bulk shear
1 kt
0-1 km storm-relative helicity
65 m²/s²
0-3 km storm-relative helicity
182 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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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 Tulsa, OK wrote its last area forecast discussion before this special weather statement went out at Jul 8, 3:32 PM CDT, 1 hour 35 minutes earlier.

Area forecast discussion, Jul 8, 3:32 PM CDT, 1 hour 35 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
332 PM CDT TUE JUL 8 2014

.DISCUSSION...
A WEAK COLD FRONT CONTINUES TO SLOWLY PUSH SOUTHWARD WITH THE WIND
SHIFT CURRENTLY NEAR A MCALESTER TO FAYETTEVILLE LINE...WITH THE
SLIGHTLY COOLER AND DRIER AIR LAGGING FURTHER NORTH. RECENTLY A
DENSE CU FIELD HAS DEVELOPED NEAR THE WIND SHIFT HOWEVER FORECAST
SOUNDINGS SHOW A SUBSTANTIAL WARM LAYER ALOFT WHICH IS EXPECTED TO
LIMIT ANY STORM POTENTIAL. SHOULD A FEW STORMS DEVELOP...STRONG
INSTABILITY WILL SUPPORT A FEW STRONG TO SEVERE STORMS THROUGH THE
EVENING HOURS. ADDITIONAL CONVECTION IS LIKELY TO DEVELOP NEARER
THE ELEVATED FRONTAL ZONE TONIGHT...WITH ALL CONVECTION PUSHING
FURTHER SOUTHWARD NEARER THE RED RIVER TOMORROW.

THE FRONTAL ZONE WILL BECOME ORIENTED MORE NORTHWEST TO SOUTHEAST
AS IT RETURNS NORTHWARD WEDNESDAY NIGHT THROUGH THURSDAY. GOOD
POTENTIAL AN MCS ORIGINATES ACROSS THE HIGH PLAINS AND PUSHES
SOUTHEASTWARD INTO THE REGION LATE WEDNESDAY NIGHT INTO THURSDAY.
THIS SCENARIO WOULD BE THE BEST SHOT OF PRECIP FOR MOST LOCATIONS.
OVERALL TEMPS WILL BE NEAR TO SLIGHTLY BELOW NORMAL FOR THE NEXT
FEW DAYS THOUGH HUMIDITIES WILL MAKE HEAT INDEX VALUES NOTICEABLE.

FRIDAY THROUGH SUNDAY LOOK HOT. UPPER HIGH CENTERS VERY NEAR THE
AREA AND FORECAST DEWPOINTS FALL OFF SLIGHTLY ESPECIALLY WEST OF
HIGHWAY 75. URBAN AREAS WILL ALSO MAINTAIN VERY WARM LOW TEMPS.

RELIEF IS LIKELY TO ARRIVE TOWARD THE FIRST OF NEXT WEEK. WHILE
THE GFS HAS TURNED LESS BULLISH...THIS FORECAST WILL RETAIN THE
TREND CLOSER TO THE ECMWF SOLUTION AND BRING NOTICEABLY COOLER
TEMPS AND INCREASE PRECIP CHANCES.

&&

.PRELIMINARY POINT TEMPS/POPS...
TUL   69  91  70  91 /  10  10  30  20
FSM   72  91  71  89 /  30  10  30  30
MLC   74  90  72  92 /  20  20  20  10
BVO   65  90  66  89 /   0  10  40  30
FYV   63  86  66  85 /  20  10  20  30
BYV   64  85  65  85 /  20  10   0  30
MKO   69  90  70  90 /  20  10  30  20
MIO   65  88  65  88 /   0   0  20  40
F10   71  90  70  92 /  30  10  30  10
HHW   75  93  73  94 /  10  30  10  10

&&

.TSA WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
AR...NONE.
&&

LONG TERM....07
Hazardous weather outlook, Jul 8, 1:21 PM CDT, 3 hours 46 minutes before
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In the hours before

Special weather statement, Jul 8, 5:07 PM CDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
507 PM CDT TUE JUL 8 2014

ARZ011-082230-
MADISON AR-
507 PM CDT TUE JUL 8 2014

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 530 PM CDT
FOR THE FOLLOWING COUNTY...

IN NORTHWEST ARKANSAS
     EASTERN MADISON

AT 507 PM CDT...A STRONG THUNDERSTORM WAS LOCATED 4 MILES NORTHEAST
OF WITTER...MOVING EAST AT 15 MPH. SOME LOCATIONS THAT WILL BE
AFFECTED BY THIS STORM INCLUDE...RED STAR...WEATHERS...KINGSTON AND
WITTER.

THIS STORM WILL BE CAPABLE OF PRODUCING DIME SIZE HAIL AND WIND
GUSTS TO 40 MPH. RESIDENTS IN THESE AREAS SHOULD REMAIN ALERT IN CASE
THE SIGNIFICANT WEATHER ADVISORY IS UPGRADED TO A WARNING.

LAT...LON 3594 9348 3593 9348 3592 9350 3588 9350
      3586 9352 3594 9371 3609 9366 3605 9344
      3597 9345
TIME...MOT...LOC 2207Z 288DEG 15KT 3599 9364

The office that day

Everything else NWS Tulsa, OK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 8, 3:08 AM CDTSpecial Weather StatementTSACarroll52 min
Jul 8, 5:15 PM CDTSevere Thunderstorm WarningTSAMadison60 min
Jul 8, 5:48 PM CDTAreal Flood AdvisoryTSAMadison117 min
Jul 8, 6:08 PM CDTSpecial Weather StatementTSAMadison67 min
Jul 8, 6:19 PM CDTSevere Thunderstorm WarningTSAFranklin, Madison26 min

Nearby

Special Weather Statements in Arkansas, 2014Every special weather statement in 2014

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.