Alert archive / Arkansas / Flash Flood Warnings in 2017

Flash Flood Warning 35, NWS Tulsa, OK

July 2, 2017Benton County, Arkansas

NWS Tulsa, OK issued this flash flood warning at Jul 2, 2017, 8:03 PM CDT for Benton County, Arkansas. It was in force for 4 hr. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jul 2, 2017, 8:03 PM CDT (01:03 UTC)
Expired
Jul 3, 2017, 12:00 AM CDT
In force
4 hr
Issued by
NWS Tulsa, OK
Area
Storm-based polygon
Flood severity
None

County Benton County, AR

The radar

The Springfield radar (KSGF), 110 km from the middle of the area, began a volume at 01:04 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.

What was reported inside it

TimeReportWhereRemark
Jul 2, 8:20 PM CDTFLASH FLOODPea Ridge, AR

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 1.1 hours before the alert went out and 62 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 00:00Z on 2017-07-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 145 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 00:00Z on 2017-07-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -28 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
145 J/kg
Mixed-layer CIN
-107 J/kg
Mixed-layer LCL
1948 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
-28 m²/s²
0-3 km storm-relative helicity
95 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

As transmitted.

394 
WGUS54 KTSA 030103
FFWTSA
ARC007-030500-
/O.NEW.KTSA.FF.W.0035.170703T0103Z-170703T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Tulsa OK
803 PM CDT SUN JUL 2 2017

The National Weather Service in Tulsa has issued a

* Flash Flood Warning for...
  Northern Benton County in northwestern Arkansas...

* Until midnight CDT

* At 801 PM CDT, Doppler radar indicated pockets of heavy rain from 
  a broken band of slow moving thunderstorms across northern Benton 
  county. Radar estimates that between 2 and 2.5 inches of rain may 
  have fallen near Pea Ridge and Avoca. Flash flooding may begin 
  shortly.

* Some locations that may experience flooding include...
  Rogers...                         Bentonville...
  Bella Vista...                    Pea Ridge...
  Gravette...                       Decatur...
  Garfield...                       Gateway...
  Maysville...                      War Eagle...
  Hiwasse...                        Hobbs State Park...
  Miller...                         Centerton...
  Sulphur Springs...                Avoca...
  Hill Top...                       Beaver Lake...
  Walnut Hill...                    Monte Ne...

This includes Interstate 49 between mile markers 83 and 84, and 
between mile markers 86 and 93.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

&&

LAT...LON 3624 9387 3639 9460 3650 9462 3650 9387
      3639 9387 3639 9388 3638 9389 3637 9387
      3634 9387 3634 9386

$$

Lacy
2 follow-up statements
596 
WGUS74 KTSA 030149
FFSTSA

Flash Flood Statement
National Weather Service Tulsa OK
849 PM CDT SUN JUL 2 2017

ARC007-030500-
/O.CON.KTSA.FF.W.0035.000000T0000Z-170703T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Benton AR-
849 PM CDT SUN JUL 2 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CDT FOR
NORTHERN BENTON COUNTY...

At 820 PM CDT, the public reported flash flooding in Pea Ridge. 
Doppler radar continues to detect heavy rainfall across the warned 
area. More flash flooding is likely over the next several hours 
across portions of Benton county..

Some locations that may experience flooding include...
Rogers...                         Bentonville...
Bella Vista...                    Pea Ridge...
Gravette...                       Decatur...
Garfield...                       Gateway...
Maysville...                      War Eagle...
Hiwasse...                        Hobbs State Park...
Miller...                         Centerton...
Sulphur Springs...                Avoca...
Hill Top...                       Beaver Lake...
Walnut Hill...                    Monte Ne...

This includes Interstate 49 between mile markers 83 and 84, and
between mile markers 86 and 93.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

&&

LAT...LON 3624 9387 3639 9460 3650 9462 3650 9387
      3639 9387 3639 9388 3638 9389 3637 9387
      3634 9387 3634 9386

$$

Lacy
052 
WGUS74 KTSA 030456
FFSTSA

Flash Flood Statement
National Weather Service Tulsa OK
1156 PM CDT SUN JUL 2 2017

ARC007-030502-
/O.EXP.KTSA.FF.W.0035.000000T0000Z-170703T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Benton AR-
1156 PM CDT SUN JUL 2 2017

...THE FLASH FLOOD WARNING FOR NORTHERN BENTON COUNTY WILL EXPIRE AT
MIDNIGHT CDT...

The heavy rain has ended across the warning area late this evening, 
therefore the flash flood watch will be allowed to expire. A few low 
lying areas may still have water over the road. Please continue to 
heed any remaining road closures.

LAT...LON 3624 9387 3639 9460 3650 9462 3650 9387
      3639 9387 3639 9388 3638 9389 3637 9387
      3634 9387 3634 9386

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 2, 7:07 PM CDTAreal Flood AdvisoryTSACrawford3 hr
Jul 2, 7:08 PM CDTSpecial Weather StatementTSACrawford37 min
Jul 2, 7:26 PM CDTSpecial Weather StatementTSABenton, Carroll49 min
Jul 2, 7:36 PM CDTAreal Flood AdvisoryTSABenton3 hr
Jul 2, 7:58 PM CDTSpecial Weather StatementTSACrawford, Sebastian, Washington32 min
Jul 2, 8:07 PM CDTSpecial Weather StatementTSAFranklin23 min
Jul 2, 8:08 PM CDTAreal Flood AdvisoryTSACrawford, Franklin3 hr
Jul 2, 8:14 PM CDTAreal Flood AdvisoryTSACarroll, Madison3 hr
Jul 2, 8:14 PM CDTSpecial Weather StatementTSABenton, Carroll31 min
Jul 2, 8:30 PM CDTSpecial Weather StatementTSACrawford, Franklin45 min
Jul 2, 9:57 PM CDTSpecial Weather StatementTSASebastian33 min
Jul 2, 10:26 PM CDTSpecial Weather StatementTSASebastian34 min

Nearby

Flash Flood Warnings in Arkansas, 2017Every flash flood warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.