Alert archive / Oklahoma / Special Weather Statements in 2012
Special Weather Statement, NWS Norman, OK
NWS Norman, OK issued this special weather statement at Aug 18, 2012, 12:52 PM CDT for 4 counties in Oklahoma. It was in force for 53 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 18, 2012, 12:52 PM CDT (17:52 UTC)
- Expired
- Aug 18, 2012, 1:45 PM CDT
- In force
- 53 min
- Issued by
- NWS Norman, OK
Counties Caddo County, OK, Canadian County, OK, Cleveland County, OK, Oklahoma County, OK
The radar
The Norman radar (KTLX), 37 km from the middle of the area, began a volume at 17:55 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
Norman, OK (KOUN), launched 12:00Z, 5.9 hours before the alert went out and 29 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.
- Mixed-layer CAPE
- 884 J/kg
- Mixed-layer CIN
- -162 J/kg
- Mixed-layer LCL
- 892 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 183 m²/s²
- 0-3 km storm-relative helicity
- 395 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 13.2
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>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 18, 12:24 PM CDT, 28 minutes earlier.
Area forecast discussion, Aug 18, 12:24 PM CDT, 28 minutes before
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</html>Hazardous weather outlook, Aug 18, 12:08 PM CDT, 44 minutes before
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Special weather statement, Aug 18, 9:57 AM CDT, 2 hours 55 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 957 AM CDT SAT AUG 18 2012 OKZ018>020-024>026-181545- LOGAN OK-LINCOLN OK-OKLAHOMA OK-KINGFISHER OK-PAYNE OK-CANADIAN OK- 957 AM CDT SAT AUG 18 2012 ...SIGNIFICANT WEATHER ADVISORY FOR LOGAN...NORTHWESTERN LINCOLN... NORTHWESTERN OKLAHOMA...SOUTHEASTERN KINGFISHER...SOUTHWESTERN PAYNE AND NORTHEASTERN CANADIAN COUNTIES UNTIL 1045 AM CDT... AT 953 AM CDT...STRONG THUNDERSTORMS WERE LOCATED FROM NEAR LANGSTON TO NEAR OKARCHE MOVING SOUTHEAST AT 25 MPH. WIND GUSTS TO 45 MPH...BRIEF HEAVY RAIN AND FREQUENT LIGHTNING CAN BE EXPECTED. SMALL HAIL WILL ALSO BE POSSIBLE. LOCATIONS IMPACTED INCLUDE... EDMOND...GUTHRIE...THE VILLAGE...WARR ACRES...NICHOLS HILLS... PIEDMONT...PERKINS...LANGSTON...CASHION...RIPLEY...COYLE...ARCADIA... CIMARRON CITY...CEDAR VALLEY...MERIDIAN...NAVINA AND SEWARD. LAT...LON 3600 9677 3547 9759 3572 9794 3610 9730 TIME...MOT...LOC 1453Z 305DEG 18KT 3588 9752
Special weather statement, Aug 18, 10:21 AM CDT, 2 hours 31 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 1021 AM
CDT SAT AUG 18 2012
OKZ019-024>026-181600-
LOGAN OK-LINCOLN OK-OKLAHOMA OK-CANADIAN OK-
1021 AM CDT SAT AUG 18 2012
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN LOGAN...LINCOLN...
OKLAHOMA AND EASTERN CANADIAN COUNTIES UNTIL 1100 AM CDT...
AT 1018 AM CDT...STRONG THUNDERSTORMS WERE LOCATED FROM FROM 5 MILES
SOUTHEAST OF MERIDIAN TO 4 MILES SOUTHEAST OF PIEDMONT AND
WERE MOVING SOUTHEAST AT 40 MPH. WIND GUSTS OF 40 TO 50 MPH...BRIEF
HEAVY DOWPOURS AND FREQUENT LIGHTNING CAN BE EXPECTED. SMALL HAIL
WILL ALSO BE POSSIBLE.
LOCATIONS IMPACTED INCLUDE...
OKLAHOMA CITY...EDMOND...MIDWEST CITY...DEL CITY...YUKON...BETHANY...
MUSTANG...THE VILLAGE...WARR ACRES...CHOCTAW...HARRAH...NICHOLS
HILLS...SPENCER...PIEDMONT...CHANDLER...JONES...NICOMA PARK...
DAVENPORT...WELLSTON AND CARNEY.
LAT...LON 3559 9682 3546 9719 3538 9760 3538 9767
3535 9773 3563 9781 3590 9718 3593 9662
3586 9662
TIME...MOT...LOC 1518Z 276DEG 35KT 3578 9717 3561 9767Special weather statement, Aug 18, 10:26 AM CDT, 2 hours 26 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 1026 AM CDT SAT AUG 18 2012 OKZ004-005-010-181615- HARPER OK-WOODWARD OK-WOODS OK- 1026 AM CDT SAT AUG 18 2012 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN HARPER... NORTHEASTERN WOODWARD AND SOUTHWESTERN WOODS COUNTIES UNTIL 1115 AM CDT... AT 1022 AM CDT...A STRONG THUNDERSTORM WAS LOCATED 10 MILES WEST OF FREEDOM...MOVING SOUTHEAST AT 25 MPH. HAZARDS INCLUDE... HAIL UP TO ONE-HALF INCH DIAMETER... WIND GUSTS TO 50 MPH... LOCATIONS IMPACTED INCLUDE... WAYNOKA. LAT...LON 3657 9880 3641 9935 3670 9952 3682 9928 TIME...MOT...LOC 1522Z 308DEG 23KT 3672 9930
Special weather statement, Aug 18, 11:16 AM CDT, 1 hour 36 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 1116 AM CDT SAT AUG 18 2012 OKZ011-015-017-181645- BLAINE OK-DEWEY OK-MAJOR OK- 1116 AM CDT SAT AUG 18 2012 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN BLAINE...EASTERN DEWEY AND SOUTHWESTERN MAJOR COUNTIES UNTIL 1145 AM CDT... AT 1112 AM CDT...A STRONG THUNDERSTORM WAS LOCATED NEAR ORION... MOVING SOUTH AT 45 MPH. HAZARDS INCLUDE... HAIL UP TO THE SIZE OF NICKELS... WIND GUSTS TO 50 MPH... LOCATIONS IMPACTED INCLUDE... CANTON...OAKWOOD...CANTON LAKE...EAGLE CITY...ORION AND HUCMAC. LAT...LON 3629 9870 3586 9839 3582 9882 3622 9891 TIME...MOT...LOC 1612Z 338DEG 41KT 3624 9880
Special weather statement, Aug 18, 12:21 PM CDT, 31 minutes before
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</html>The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 18, 6:36 AM CDT | Special Weather Statement | OUN | Harper | 24 min |
| Aug 18, 7:08 AM CDT | Special Weather Statement | OUN | Woods | 52 min |
| Aug 18, 7:57 AM CDT | Special Weather Statement | OUN | Alfalfa, Major, Woods | 48 min |
| Aug 18, 8:12 AM CDT | Special Weather Statement | OUN | Harper | 33 min |
| Aug 18, 8:25 AM CDT | Special Weather Statement | OUN | Garfield, Kay, Major | 50 min |
| Aug 18, 8:31 AM CDT | Special Weather Statement | OUN | Oklahoma | 29 min |
| Aug 18, 8:42 AM CDT | Special Weather Statement | OUN | Oklahoma | 33 min |
| Aug 18, 9:16 AM CDT | Special Weather Statement | OUN | Kingfisher, Logan | 44 min |
| Aug 18, 9:36 AM CDT | Special Weather Statement | OUN | Oklahoma | 24 min |
| Aug 18, 9:41 AM CDT | Special Weather Statement | OUN | Woods | 49 min |
| Aug 18, 9:57 AM CDT | Special Weather Statement | OUN | Logan | 48 min |
| Aug 18, 10:21 AM CDT | Special Weather Statement | OUN | Lincoln, Oklahoma | 39 min |
| Aug 18, 10:26 AM CDT | Special Weather Statement | OUN | Woodward | 49 min |
| Aug 18, 10:45 AM CDT | Severe Thunderstorm Warning | OUN | Woodward | 32 min |
| Aug 18, 11:16 AM CDT | Special Weather Statement | OUN | Blaine | 29 min |
| Aug 18, 11:24 AM CDT | Severe Thunderstorm Warning | OUN | Blaine, Dewey, Kingfisher, Major | 36 min |
| Aug 18, 12:21 PM CDT | Special Weather Statement | OUN | Blaine, Canadian | 39 min |
| Aug 18, 12:56 PM CDT | Special Weather Statement | OUN | Garvin | 64 min |
| Aug 18, 2:01 PM CDT | Special Weather Statement | OUN | Carter, Jefferson | 44 min |
| Aug 18, 2:22 PM CDT | Special Weather Statement | OUN | Tillman | 38 min |
| Aug 18, 2:27 PM CDT | Special Weather Statement | OUN | Tillman | 33 min |
| Aug 18, 2:42 PM CDT | Special Weather Statement | OUN | Stephens | 33 min |
| Aug 18, 2:56 PM CDT | Special Weather Statement | OUN | Love | 49 min |
| Aug 18, 3:16 PM CDT | Special Weather Statement | OUN | Stephens | 29 min |
| Aug 18, 3:22 PM CDT | Special Weather Statement | OUN | Cotton | 23 min |
| Aug 18, 2:52 PM CDT | Special Weather Statement | OUN | Foard | 38 min |
| Aug 18, 3:33 PM CDT | Special Weather Statement | OUN | Baylor | 27 min |
| Aug 18, 3:55 PM CDT | Special Weather Statement | OUN | Wichita | 35 min |
Nearby
Special Weather Statements in Oklahoma, 2012Every special weather statement in 2012
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.