Alert archive / Oklahoma / Special Weather Statements in 2016

Special Weather Statement, NWS Norman, OK

August 19, 2016Woods County, Oklahoma

NWS Norman, OK issued this special weather statement at Aug 19, 2016, 7:41 PM CDT for Woods County, Oklahoma. It was in force for 34 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
Aug 19, 2016, 7:41 PM CDT (00:41 UTC)
Expired
Aug 19, 2016, 8:15 PM CDT
In force
34 min
Issued by
NWS Norman, OK

County Woods County, OK

The radar

The Vance AFB radar (KVNX), 65 km from the middle of the area, began a volume at 00:43 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

Dodge City, (KDDC), launched 00:00Z, 0.7 hours before the alert went out and 142 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, Dodge City, at 00:00Z on 2016-08-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 674 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, Dodge City, at 00:00Z on 2016-08-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -22 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
674 J/kg
Mixed-layer CIN
-62 J/kg
Mixed-layer LCL
1417 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
-22 m²/s²
0-3 km storm-relative helicity
38 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 Norman, OK wrote its last area forecast discussion before this special weather statement went out at Aug 19, 6:14 PM CDT, 1 hour 27 minutes earlier.

Area forecast discussion, Aug 19, 6:14 PM CDT, 1 hour 27 minutes before
Area Forecast Discussion
National Weather Service Norman OK
614 PM CDT FRI AUG 19 2016

.DISCUSSION...
Please see the 00Z aviation discussion below.

&&

.AVIATION...
Thunderstorms are still expected to impacted the region later
tonight as a cold front, with an accompanying wind shift from the
north, moves in from the north. Confidence is just high enough to
include tempo groups for OUN/OKC now, around 06Z. MVFR cigs will
also develop late tonight through early tomorrow morning. Wind
gusts around 40 KT may accompany the stronger storms tonight, but
overall storm intensity should remain low.

&&

.PRELIMINARY POINT TEMPS/POPS...
Oklahoma City OK  69  81  61  86 /  70  30  10   0
Hobart OK         68  84  62  88 /  80  20  10  10
Wichita Falls TX  71  84  66  88 /  70  60  20  20
Gage OK           63  80  56  87 /  70  10   0   0
Ponca City OK     69  79  58  84 /  80  10   0   0
Durant OK         72  83  66  88 /  70  70  30  20

&&

.OUN Watches/Warnings/Advisories...
OK...None.
TX...None.
&&

23/03/03
Hazardous weather outlook, Aug 19, 11:57 AM CDT, 7 hours 44 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
1157 AM CDT FRI AUG 19 2016

OKZ004>048-050>052-TXZ083>090-201015-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-
NOBLE-ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-
BECKHAM-WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-
CLEVELAND-POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-
TILLMAN-COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-
JEFFERSON-CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-
FOARD-WILBARGER-WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
1157 AM CDT FRI AUG 19 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHERN...
WESTERN...CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH
TEXAS.

.DAY ONE...THIS AFTERNOON AND TONIGHT...

.THUNDERSTORMS...
THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF
WESTERN AND NORTHERN OKLAHOMA THIS AFTERNOON AND TONIGHT.

LOCATION...
THE SLIGHT RISK AREA IS NORTHWEST OF A LINE FROM CHEYENNE TO WATONGA
TO PERRY.  A MARGINAL RISK SURROUNDS THE SLIGHT RISK AND INCLUDES
AREAS NORTHWEST OF A LINE FROM VERNON...TEXAS TO LAWTON TO NORMAN
AND SEMINOLE.

TIMING...THUNDERSTORM CHANCES WILL INCREASE THROUGHOUT THE DAY.
THE GREATEST CHANCE OF THUNDERSTORMS...INCLUDING THE POSSIBILITY OF
SEVERE THUNDERSTORMS...WILL BE FROM AROUND 5 PM THROUGH MIDNIGHT.

IMPACTS...THUNDERSTORMS WILL CONTAIN HEAVY RAINFALL AND CLOUD TO
GROUND LIGHTNING. DAMAGING WINDS WILL BE THE PRIMARY CONCERN WITH
THESE STORMS. HAIL UP TO QUARTER SIZE IS POSSIBLE.

DISCUSSION...THUNDERSTORMS ARE EXPECTED TO DEVELOP ALONG A COLD
FRONT IN SOUTHERN KANSAS AND NORTHWEST OKLAHOMA BY LATE AFTERNOON.
DURING THE EVENING AND OVERNIGHT HOURS...ADDITIONAL STORMS WILL FORM
AS THE FRONT PUSHES SOUTHWARD ACROSS OKLAHOMA.

ALTHOUGH DEEP LAYER SHEAR WILL BE MARGINAL...DECENT DIRECTIONAL
SHEAR AND MODERATE INSTABILITY MAY RESULT IN A FEW STRONG TO
SEVERE STORMS DURING THE LATE AFTERNOON AND EVENING HOURS. THUNDERSTORM
INTENSITY WILL LIKELY DECREASE BY MIDNIGHT...BUT THE STRONGER STORMS
MAY PRODUCE STRONG GUSTY WINDS AND LOCALLY HEAVY RAINFALL.

MEANWHILE...SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS WILL MOVE
ACROSS NORTH TEXAS AND SOUTHERN OKLAHOMA THROUGH THE AFTERNOON. VERY HEAVY
RAIN AND SOME FLOODING WILL BE POSSIBLE WITH SOME OF THE THUNDERSTORMS.
THE BEST CHANCE FOR RAIN WITH THIS ACTIVITY WILL BE ALONG AND SOUTH OF
A HOLDENVILLE TO ADA TO WICHITA FALLS LINE.

.SPOTTER AND EMERGENCY MANAGEMENT STATEMENT...

STORM SPOTTER GROUPS AND EMERGENCY MANAGEMENT PERSONNEL ACROSS
NORTHWEST OKLAHOMA SHOULD PREPARE FOR SEVERE WEATHER OPERATIONS
THIS EVENING THROUGH EARLY TONIGHT.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY...
THE CHANCE FOR THUNDERSTORMS WILL CONTINUE THROUGH LATE NEXT WEEK.
ORGANIZED SEVERE WEATHER CHANCES THIS WEEKEND AND NEXT WEEK WILL
BE LOW.

GET GRAPHICS AND MORE DETAILS AT WEATHER.GOV/NORMAN...AND FOLLOW
OUR WEATHER FORECAST OFFICE ON TWITTER AND FACEBOOK.

In the hours before

Local storm report, Aug 19, 5:18 PM CDT, 2 hours 23 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
518 PM CDT FRI AUG 19 2016

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0516 PM     FLOOD            1 S SAYRE               35.29N 99.64W
08/19/2016                   BECKHAM            OK   TRAINED SPOTTER

            WATER OVER ROADWAY ON HWY 283

&&

DW
Special weather statement, Aug 19, 5:37 PM CDT, 2 hours 4 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
537 PM CDT FRI AUG 19 2016

OKZ021-022-033>036-192330-
HARMON OK-GREER OK-BECKHAM OK-KIOWA OK-JACKSON OK-WASHITA OK-
537 PM CDT FRI AUG 19 2016

...SIGNIFICANT WEATHER ADVISORY FOR HARMON...GREER...SOUTHERN
BECKHAM...KIOWA...NORTHERN JACKSON AND SOUTHWESTERN WASHITA COUNTIES
UNTIL 630 PM CDT...

AT 534 PM CDT...STRONG THUNDERSTORMS WERE ALONG A LINE EXTENDING FROM
4 MILES SOUTHWEST OF CORDELL TO 4 MILES SOUTHEAST OF RETROP TO 4
MILES NORTHWEST OF WILLOW TO 9 MILES NORTHWEST OF VINSON...MOVING
SOUTH AT 20 MPH. STRONG WIND GUSTS MAY ARRIVE WELL BEFORE ANY
PRECIPITATION WITH THESE STORMS.

HAZARDS INCLUDE...
WIND GUSTS TO 50 MPH...
MINOR FLOODING IN AREAS OF POOR DRAINAGE...

LOCATIONS IMPACTED INCLUDE...
ALTUS...HOBART...MANGUM...CORDELL...HOLLIS...GRANITE...SENTINEL...BLAIR...
DILL CITY...LONE WOLF...CARTER...ROOSEVELT...GOTEBO...MARTHA...ROCKY...
WILLOW...GOULD...FRIENDSHIP...DUKE AND VINSON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE WEATHER IS NOT EXPECTED AND NO WARNINGS ARE ANTICIPATED AT
THIS TIME.

&&

LAT...LON 3507 10000 3516 9964 3525 9951 3536 9902
      3502 9873 3470 9906 3464 9947 3468 9999
TIME...MOT...LOC 2234Z 342DEG 16KT 3525 9904 3513 9929 3510 9956 3501
9996

03
Local storm report, Aug 19, 6:07 PM CDT, 1 hour 34 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
607 PM CDT FRI AUG 19 2016

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0508 PM     TSTM WND DMG     9 SSW SAYRE             35.18N 99.68W
08/19/2016                   BECKHAM            OK   FIRE DEPT/RESCUE

            SEVERAL BARN ROOFS BLOWN OFF...IRRIGATION EQUIPMENT
            MOVED/DAMAGED...AND POWER LINES DOWN IN DELHI.

&&

CSHARPE
Local storm report, Aug 19, 7:04 PM CDT, 37 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
704 PM CDT FRI AUG 19 2016

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0650 PM     TSTM WND GST     3 W GOULD               34.67N 99.83W
08/19/2016  M66 MPH          HARMON             OK   MESONET

&&

CMS
Special weather statement, Aug 19, 7:29 PM CDT, 12 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
729 PM CDT FRI AUG 19 2016

OKZ033-034-036-TXZ083-085-200130-
HARMON OK-GREER OK-JACKSON OK-WILBARGER TX-HARDEMAN TX-
729 PM CDT FRI AUG 19 2016

...SIGNIFICANT WEATHER ADVISORY FOR HARMON...SOUTHEASTERN GREER...
JACKSON...NORTHWESTERN WILBARGER AND CENTRAL HARDEMAN COUNTIES UNTIL
830 PM CDT...

AT 725 PM CDT...STRONG THUNDERSTORMS WERE ALONG A LINE EXTENDING FROM
NEAR DUKE TO 8 MILES SOUTHWEST OF GOULD...MOVING EAST AT 20 MPH. STRONG
WIND GUSTS MAY OCCUR WELL AHEAD OF THE STORMS WHERE PRECIPITATION IS
NOT FALLING.

HAZARDS INCLUDE...
WIND GUSTS TO 50 MPH...
MINOR FLOODING IN AREAS OF POOR DRAINAGE...
FREQUENT CLOUD TO GROUND LIGHTNING...

LOCATIONS IMPACTED INCLUDE...
ALTUS...MANGUM...QUANAH...HOLLIS...BLAIR...OLUSTEE...ELDORADO...MARTHA...
GOULD...ELMER...FRIENDSHIP...DUKE...HUMPHREYS...GOODLETT...ALTUS AIR FORCE
BASE...ODELL...WARREN...HESTER...LAZARE AND MCQUEEN.

LAT...LON 3471 9999 3494 9969 3480 9917 3475 9916
      3475 9917 3474 9917 3465 9914 3449 9923
      3431 9928 3422 10000
TIME...MOT...LOC 0025Z 282DEG 18KT 3469 9955 3455 9985

03
Special weather statement, Aug 19, 7:41 PM CDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 19, 7:29 PM CDTSpecial Weather StatementOUNHarmon, Jackson61 min
Aug 19, 8:29 PM CDTSpecial Weather StatementOUNWoodward46 min
Aug 19, 8:43 PM CDTSpecial Weather StatementOUNRoger Mills47 min
Aug 20, 12:30 AM CDTAreal Flood AdvisoryOUNHarmon, Jackson3 hr
Aug 20, 1:05 AM CDTSpecial Weather StatementOUNTillman40 min
Aug 20, 1:32 AM CDTAreal Flood AdvisoryOUNJackson, Tillman118 min
Aug 20, 1:42 AM CDTSpecial Weather StatementOUNTillman33 min
Aug 20, 7:34 AM CDTAreal Flood AdvisoryOUNBryan3 hr
Aug 19, 8:33 PM CDTSpecial Weather StatementOUNHardeman57 min

Nearby

Special Weather Statements in Oklahoma, 2016Every special weather statement in 2016

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.