Alert archive / Arkansas / Areal Flood Warnings in 2008

Areal Flood Warning 4, NWS Tulsa, OK

July 6, 2008Benton County, Carroll County, Arkansas

NWS Tulsa, OK issued this areal flood warning at Jul 6, 2008, 1:29 AM CDT for Benton County, Carroll County, Arkansas. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 6, 2008, 1:29 AM CDT (06:29 UTC)
Expired: Jul 6, 2008, 7:30 AM CDT
In force: 6 hr
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Flood severity: None

Counties Benton County, AR, Carroll County, AR

The radar

The Springfield radar (KSGF), 109 km from the middle of the area, began a volume at 06:32 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, 6.5 hours before the alert went out and 63 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: 2832 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 947 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: -4 m²/s²
0-3 km storm-relative helicity: 73 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal flood warning 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 areal flood warning went out at Jul 5, 11:53 PM CDT, 1 hour 36 minutes earlier.

Area forecast discussion, Jul 5, 11:53 PM CDT, 1 hour 36 minutes before

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Hazardous weather outlook, Jul 5, 11:30 PM CDT, 1 hour 59 minutes before

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In the hours before

Special weather statement, Jul 5, 7:35 PM CDT, 5 hours 54 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
735 PM CDT SAT JUL 5 2008

ARZ029-OKZ072-076-060115-
LE FLORE OK-SEBASTIAN AR-SEQUOYAH OK-
735 PM CDT SAT JUL 5 2008

...SIGNIFICANT WEATHER ALERT...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ALERT EFFECTIVE UNTIL 815 PM CDT
FOR THE FOLLOWING COUNTIES...

IN WEST CENTRAL ARKANSAS
     WESTERN SEBASTIAN

IN EAST CENTRAL OKLAHOMA
     SOUTHEASTERN SEQUOYAH

IN SOUTHEAST OKLAHOMA
     NORTHEASTERN LE FLORE

AT 735 PM CDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 3 MILES
SOUTHEAST OF COTTONWOOD...MOVING SOUTHEAST AT 10 MPH. SOME LOCATIONS
THAT WILL BE AFFECTED BY THIS STORM INCLUDE...COTTONWOOD...ROCK
ISLAND...POCOLA...SCULLYVILLE...BRADEN...ARKOMA...MILL CREEK...
HACKETT...BARLING...JENSON...BONANZA...JENNY LIND...RYE HILL AND
CENTRAL CITY.

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

LAT...LON 3532 9424 3512 9445 3530 9462 3542 9454
TIME...MOT...LOC 0035Z 303DEG 9KT 3533 9451

Local storm report, Jul 5, 8:28 PM CDT, 5 hours 1 minute before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 5, 7:40 PM CDT	Severe Thunderstorm Warning	TSA	LeFlore, Sequoyah	50 min
Jul 5, 7:02 PM CDT	Areal Flood Advisory	TSA	Madison	118 min
Jul 5, 7:11 PM CDT	Severe Thunderstorm Warning	TSA	Franklin, Madison	64 min
Jul 5, 7:35 PM CDT	Special Weather Statement	TSA	Sebastian	40 min
Jul 5, 7:45 PM CDT	Flash Flood Warning	TSA	Madison	5 hr
Jul 5, 8:32 PM CDT	Flash Flood Warning	TSA	Benton	5 hr
Jul 5, 8:47 PM CDT	Areal Flood Advisory	TSA	Franklin	118 min
Jul 5, 9:41 PM CDT	Areal Flood Advisory	TSA	Benton, Carroll	2 hr
Jul 5, 9:46 PM CDT	Flash Flood Warning	TSA	Benton, Carroll	5 hr

Nearby

Areal Flood Warnings in Arkansas, 2008 Every areal flood warning in 2008

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.