Alert archive / Arkansas / Special Weather Statements in 2011

Special Weather Statement, NWS Tulsa, OK

May 22, 2011Madison County, Arkansas

NWS Tulsa, OK issued this special weather statement at May 22, 2011, 1:36 AM CDT for Madison 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: May 22, 2011, 1:36 AM CDT (06:36 UTC)
Expired: May 22, 2011, 2:00 AM CDT
In force: 24 min
Issued by: NWS Tulsa, OK

County Madison County, AR

The radar

The Western Arkansas radar (KSRX), 108 km from the middle of the area, began a volume at 06:38 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, 6.6 hours before the alert went out and 106 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: 804 J/kg
Mixed-layer CIN: -63 J/kg
Mixed-layer LCL: 1618 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 137 m²/s²
0-3 km storm-relative helicity: 202 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 6.0

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 May 21, 11:40 PM CDT, 1 hour 56 minutes earlier.

Area forecast discussion, May 21, 11:40 PM CDT, 1 hour 56 minutes before

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Hazardous weather outlook, May 21, 10:16 PM CDT, 3 hours 20 minutes before

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In the hours before

Special weather statement, May 21, 7:46 PM CDT, 5 hours 50 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
746 PM CDT SAT MAY 21 2011

OKZ064-220115-
CREEK OK-
746 PM CDT SAT MAY 21 2011

...SIGNIFICANT WEATHER ADVISORY...

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

IN NORTHEAST OKLAHOMA
     SOUTHWESTERN CREEK

AT 746 PM CDT...A STRONG THUNDERSTORM WAS LOCATED 4 MILES SOUTH OF
MILFAY...MOVING NORTHEAST AT 15 MPH. SOME LOCATIONS THAT WILL BE
AFFECTED BY THIS STORM INCLUDE...BRISTOW...MILFAY AND DEPEW.

THIS STORM WILL BE CAPABLE OF PRODUCING NICKEL SIZE HAIL.

LAT...LON 3570 9662 3577 9663 3595 9648 3579 9628
      3564 9660 3564 9661 3567 9663 3569 9663
TIME...MOT...LOC 0046Z 224DEG 13KT 3571 9657

Special weather statement, May 21, 7:58 PM CDT, 5 hours 38 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
758 PM CDT SAT MAY 21 2011

OKZ065-220130-
OKFUSKEE OK-
758 PM CDT SAT MAY 21 2011

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 830 PM CDT
FOR THE FOLLOWING COUNTY...

IN EAST CENTRAL OKLAHOMA
     NORTHWESTERN OKFUSKEE

AT 759 PM CDT...A STRONG THUNDERSTORM WAS LOCATED 9 MILES SOUTHWEST
OF PADEN...MOVING NORTHEAST AT 40 MPH. SOME LOCATIONS THAT WILL BE
AFFECTED BY THIS STORM INCLUDE...CASTLE...PADEN...BOLEY...MASON...
OKFUSKEE AND WELTY.

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

LAT...LON 3553 9663 3564 9644 3564 9619 3557 9619
      3542 9644 3545 9645 3545 9647 3543 9649
      3545 9655 3544 9656 3541 9653 3539 9654
      3540 9663
TIME...MOT...LOC 0059Z 232DEG 34KT 3543 9660

Special weather statement, May 21, 8:28 PM CDT, 5 hours 8 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
828 PM CDT SAT MAY 21 2011

OKZ064-066-220200-
CREEK OK-OKMULGEE OK-
828 PM CDT SAT MAY 21 2011

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 900 PM CDT
FOR THE FOLLOWING COUNTIES...

IN NORTHEAST OKLAHOMA
     SOUTHEASTERN CREEK AND NORTHWESTERN OKMULGEE

AT 828 PM CDT...A STRONG THUNDERSTORM WAS LOCATED 12 MILES SOUTHWEST
OF SLICK...MOVING NORTHEAST AT 45 MPH. SOME LOCATIONS THAT WILL BE
AFFECTED BY THIS STORM INCLUDE...SLICK AND KELLYVILLE.

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

LAT...LON 3598 9618 3578 9598 3563 9630 3563 9639
      3566 9648
TIME...MOT...LOC 0128Z 226DEG 41KT 3568 9635

Local storm report, May 21, 8:51 PM CDT, 4 hours 45 minutes before

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Special weather statement, May 21, 9:02 PM CDT, 4 hours 34 minutes before

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Special weather statement, May 22, 1:36 AM CDT, 0 minutes 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
May 21, 7:46 PM CDT	Special Weather Statement	TSA	Creek	29 min
May 21, 7:54 PM CDT	Severe Thunderstorm Warning	TSA	Creek	22 min
May 21, 7:58 PM CDT	Special Weather Statement	TSA	Okfuskee	32 min
May 21, 8:28 PM CDT	Special Weather Statement	TSA	Creek	32 min
May 21, 8:36 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Okmulgee, Tulsa	39 min
May 21, 9:02 PM CDT	Special Weather Statement	TSA	Tulsa	28 min
May 22, 5:17 PM CDT	Special Weather Statement	TSA	Ottawa	28 min
May 22, 5:46 PM CDT	Severe Thunderstorm Warning	TSA	Ottawa	59 min
May 22, 5:51 PM CDT	Special Weather Statement	TSA	Wagoner	24 min
May 22, 5:54 PM CDT	Special Weather Statement	TSA	Craig	36 min
May 22, 5:59 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Delaware, Mayes, Ottawa	61 min
May 22, 6:03 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Mayes, Wagoner	57 min
May 22, 6:24 PM CDT	Tornado Warning	TSA	Craig, Delaware, Ottawa	36 min
May 22, 6:42 PM CDT	Tornado Warning	TSA	Cherokee, Delaware, Mayes, Wagoner	33 min
May 22, 6:47 PM CDT	Special Weather Statement	TSA	Okfuskee	28 min
May 22, 6:52 PM CDT	Severe Thunderstorm Warning	TSA	McIntosh, Muskogee, Okmulgee	38 min
May 22, 6:55 PM CDT	Tornado Warning	TSA	Delaware	65 min

Nearby

Special Weather Statements in Arkansas, 2011 Every special weather statement in 2011

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.