Alert archive / Oklahoma / Special Weather Statements in 2011
Special Weather Statement, NWS Norman, OK
NWS Norman, OK issued this special weather statement at Aug 10, 2011, 5:34 AM CDT for Coal County, Hughes County, Seminole County, Oklahoma. It was in force for 11 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 10, 2011, 5:34 AM CDT (10:34 UTC)
- Expired
- Aug 10, 2011, 5:45 AM CDT
- In force
- 11 min
- Issued by
- NWS Norman, OK
Counties Coal County, OK, Hughes County, OK, Seminole County, OK
The radar
The Norman radar (KTLX), 110 km from the middle of the area, began a volume at 10:34 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 00:00Z, 10.6 hours before the alert went out and 117 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
- 264 J/kg
- Mixed-layer CIN
- -200 J/kg
- Mixed-layer LCL
- 3144 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 173 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 10, 4:07 AM CDT, 1 hour 27 minutes earlier.
Area forecast discussion, Aug 10, 4:07 AM CDT, 1 hour 27 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NORMAN OK 407 AM CDT WED AUG 10 2011 .DISCUSSION... AS ONE COMPLEX OF THUNDERSTORMS EXITS THE CWA EARLY THIS MORNING... ANOTHER COMPLEX IS MOVING IN A SOUTHEASTERLY DIRECTION FROM CENTRAL KANSAS. THE BEST CHANCE OF RAIN DURING THE MORNING WILL BE THROUGH NORTHEAST PORTIONS OF THE CWA... AND A FEW STRONG TO SEVERE WIND GUSTS CAN NOT BE RULED OUT. COOL OUTFLOW WINDS FROM THIS COMPLEX WILL LIKELY KEEP TEMPERATURES DOWN A LITTLE ACROSS MUCH OF NORTHERN OKLAHOMA AS A FAIRLY IMPRESSIVE COLD FRONT BY AUGUST STANDARDS MAKES ITS WAY INTO THE AREA THIS AFTERNOON. SHOWERS/STORMS WILL BE POSSIBLE ALONG THIS FRONT BY LATE AFTERNOON. SOUTHERN PORTIONS OF THE CWA WILL STAY HOT AND LIKELY DRY... AND THE HEAT ADVISORY CONTINUES. NOTABLE RAIN CHANCES WILL CONTINUE INTO THE WEEKEND. STORMS FROM THE HIGH PLAINS TO THE WEST HELPED ALONG VIA UPSLOPE FLOW... OVERNIGHT COMPLEXES MOVING TOWARD THE CWA IN A NORTHWEST FLOW REGIME... AND AFTERNOON/EVENING STORMS ALONG FRONTAL/OUTFLOW BOUNDARIES WILL ALL BE POSSIBLE. THE FIRST COLD FRONT IS FORECAST TO STALL SOMEWHERE IN SOUTHERN OK OR NORTH TX... MOVING BACK OUT OF THE AREA ON FRIDAY. A SECOND COLD FRONT IS FORECAST TO ARRIVE SATURDAY. SOUTHERN PORTIONS OF THE CWA MAY NOT COOL OFF MUCH THIS WEEK... AND WE WILL CONTINUE WITH THE HEAT ADVISORY THROUGH FRIDAY. VERY WARM TO HOT TEMPERATURES MAY MAKE A RETURN TO THE ENTIRE CWA NEXT WEEK AS THE MID LEVEL RIDGE RETURNS. && .PRELIMINARY POINT TEMPS/POPS... OKLAHOMA CITY OK 101 75 96 74 / 20 20 20 30 HOBART OK 104 72 100 77 / 10 20 10 30 WICHITA FALLS TX 111 79 106 81 / 0 10 10 20 GAGE OK 98 67 93 70 / 20 20 20 40 PONCA CITY OK 89 71 88 74 / 60 30 20 40 DURANT OK 106 79 104 78 / 0 10 20 20 && .OUN WATCHES/WARNINGS/ADVISORIES... OK...HEAT ADVISORY UNTIL 10 PM CDT FRIDAY FOR OKZ033>048-050>052. TX...HEAT ADVISORY UNTIL 10 PM CDT FRIDAY FOR TXZ083>090. && 11/03 TAYLOR
Hazardous weather outlook, Aug 10, 5:00 AM CDT, 34 minutes before
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Special weather statement, Aug 10, 3:34 AM CDT, 2 hours before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 334 AM CDT WED AUG 10 2011 OKZ025-029-100845- CLEVELAND OK-OKLAHOMA OK- 334 AM CDT WED AUG 10 2011 ...SIGNIFICANT WEATHER ADVISORY... THIS SIGNIFICANT WEATHER ADVISORY IS FOR CLEVELAND AND OKLAHOMA COUNTIES. AT 334 AM CDT...A STRONG THUNDERSTORM WAS LOCATED OVER SOUTHWEST OKLAHOMA CITY...NEAR WILL ROGERS AIRPORT...MOVING EAST-SOUTHEAST AT 35 MPH. HAZARDS INCLUDE... WIND GUSTS 40 TO 50 MPH... MONITOR THE WEATHER SITUATION CLOSELY AND BE ALERT FOR THREATENING WEATHER CONDITIONS. LAT...LON 3545 9723 3517 9735 3534 9764 3548 9766
Special weather statement, Aug 10, 3:38 AM CDT, 1 hour 56 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
338 AM CDT WED AUG 10 2011
OKZ032-100900-
HUGHES OK-
338 AM CDT WED AUG 10 2011
...SIGNIFICANT WEATHER ADVISORY...
THIS SIGNIFICANT WEATHER ADVISORY IS FOR HUGHES COUNTY.
AT 338 AM CDT...A STRONG THUNDERSTORM WAS LOCATED OVER CALVIN...
MOVING EAST AT 25 MPH.
HAZARDS INCLUDE...
WIND GUSTS 35 TO 45 MPH...
MONITOR THE WEATHER SITUATION CLOSELY AND BE ALERT FOR THREATENING
WEATHER CONDITIONS.
LAT...LON 3509 9605 3507 9605 3505 9608 3483 9609
3491 9634 3508 9627 3513 9601 3512 9601Special weather statement, Aug 10, 4:07 AM CDT, 1 hour 27 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 407 AM CDT WED AUG 10 2011 OKZ032-042-100930- HUGHES OK-PONTOTOC OK- 407 AM CDT WED AUG 10 2011 ...SIGNIFICANT WEATHER ADVISORY... THIS SIGNIFICANT WEATHER ADVISORY IS FOR HUGHES AND PONTOTOC COUNTIES. AT 408 AM CDT...A STRONG THUNDERSTORM WAS LOCATED JUST WEST OF ALLEN...MOVING EAST-NORTHEAST AT 10 MPH. HAZARDS INCLUDE... HAIL UP TO THE SIZE OF NICKELS... WIND GUSTS TO 50 MPH... FREQUENT CLOUD TO GROUND LIGHTNING... MONITOR THE WEATHER SITUATION CLOSELY AND BE ALERT FOR THREATENING WEATHER CONDITIONS. LAT...LON 3487 9624 3480 9644 3489 9651 3505 9637
Special weather statement, Aug 10, 4:29 AM CDT, 1 hour 5 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 429 AM CDT WED AUG 10 2011 OKZ032-100945- HUGHES OK- 429 AM CDT WED AUG 10 2011 ...SIGNIFICANT WEATHER ADVISORY... THIS SIGNIFICANT WEATHER ADVISORY IS FOR HUGHES COUNTY. AT 430 AM CDT...A STRONG THUNDERSTORM WAS LOCATED 3 MILES SOUTH OF ATWOOD...MOVING NORTHEAST AT 10 MPH. HAZARDS INCLUDE... HAIL UP TO THE SIZE OF NICKELS... WIND GUSTS TO 50 MPH... FREQUENT CLOUD TO GROUND LIGHTNING... MONITOR THE WEATHER SITUATION CLOSELY AND BE ALERT FOR THREATENING WEATHER CONDITIONS. LAT...LON 3510 9618 3491 9608 3483 9635 3499 9644
Special weather statement, Aug 10, 5:16 AM CDT, 18 minutes before
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</html>Special weather statement, Aug 10, 5:34 AM CDT, 0 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 9, 8:25 PM CDT | Special Weather Statement | OUN | Beckham, Roger Mills | 35 min |
| Aug 9, 8:58 PM CDT | Special Weather Statement | OUN | Beckham | 32 min |
| Aug 9, 9:05 PM CDT | Special Weather Statement | OUN | Harper | 10 min |
| Aug 9, 9:13 PM CDT | Severe Thunderstorm Warning | OUN | Beckham, Custer, Greer, Roger Mills, Washita | 47 min |
| Aug 9, 9:24 PM CDT | Special Weather Statement | OUN | Harper | 21 min |
| Aug 9, 9:38 PM CDT | Severe Thunderstorm Warning | OUN | Harper, Woods | 26 min |
| Aug 9, 9:40 PM CDT | Special Weather Statement | OUN | Ellis | 20 min |
| Aug 9, 9:55 PM CDT | Special Weather Statement | OUN | Woodward | 20 min |
| Aug 9, 10:01 PM CDT | Special Weather Statement | OUN | Greer, Harmon, Kiowa, Washita | 44 min |
| Aug 9, 10:03 PM CDT | Severe Thunderstorm Warning | OUN | Woodward | 42 min |
| Aug 9, 10:12 PM CDT | Severe Thunderstorm Warning | OUN | Beckham, Comanche, Greer, Kiowa, Washita | 63 min |
| Aug 9, 10:16 PM CDT | Special Weather Statement | OUN | Custer | 14 min |
| Aug 9, 10:22 PM CDT | Severe Thunderstorm Warning | OUN | Blaine, Custer | 38 min |
| Aug 9, 10:28 PM CDT | Special Weather Statement | OUN | Garfield, Grant, Kay, Noble | 32 min |
| Aug 9, 10:40 PM CDT | Special Weather Statement | OUN | Noble | 20 min |
| Aug 9, 10:43 PM CDT | Severe Thunderstorm Warning | OUN | Major, Woods, Woodward | 47 min |
| Aug 9, 11:33 PM CDT | Special Weather Statement | OUN | Alfalfa | 27 min |
| Aug 9, 11:43 PM CDT | Special Weather Statement | OUN | Canadian | 17 min |
| Aug 9, 11:44 PM CDT | Special Weather Statement | OUN | Comanche | 16 min |
| Aug 9, 11:47 PM CDT | Severe Thunderstorm Warning | OUN | Caddo, Canadian, Grady | 43 min |
| Aug 9, 11:52 PM CDT | Severe Thunderstorm Warning | OUN | Alfalfa, Garfield, Major | 38 min |
| Aug 10, 12:08 AM CDT | Special Weather Statement | OUN | Canadian, Kingfisher | 22 min |
| Aug 10, 12:18 AM CDT | Severe Thunderstorm Warning | OUN | Canadian, Oklahoma | 42 min |
| Aug 10, 12:26 AM CDT | Severe Thunderstorm Warning | OUN | Kingfisher, Logan | 34 min |
| Aug 10, 12:38 AM CDT | Special Weather Statement | OUN | Cleveland, McClain | 22 min |
| Aug 10, 12:51 AM CDT | Special Weather Statement | OUN | McClain | 24 min |
| Aug 10, 12:54 AM CDT | Special Weather Statement | OUN | Noble | 21 min |
| Aug 10, 12:58 AM CDT | Severe Thunderstorm Warning | OUN | Lincoln, Logan, Oklahoma, Payne | 47 min |
| Aug 10, 1:12 AM CDT | Special Weather Statement | OUN | Pottawatomie | 18 min |
| Aug 10, 1:15 AM CDT | Special Weather Statement | OUN | McClain | 15 min |
| Aug 10, 1:20 AM CDT | Severe Thunderstorm Warning | OUN | Pottawatomie | 40 min |
| Aug 10, 1:38 AM CDT | Special Weather Statement | OUN | Lincoln | 22 min |
| Aug 10, 1:43 AM CDT | Severe Thunderstorm Warning | OUN | Lincoln, Payne, Pottawatomie, Seminole | 47 min |
| Aug 10, 3:34 AM CDT | Special Weather Statement | OUN | Cleveland | 11 min |
| Aug 10, 3:38 AM CDT | Special Weather Statement | OUN | Hughes | 22 min |
| Aug 10, 4:07 AM CDT | Special Weather Statement | OUN | Hughes | 23 min |
| Aug 10, 4:29 AM CDT | Special Weather Statement | OUN | Hughes | 16 min |
| Aug 10, 4:51 AM CDT | Severe Thunderstorm Warning | OUN | Coal, Hughes | 39 min |
| Aug 10, 5:16 AM CDT | Special Weather Statement | OUN | Alfalfa, Grant | 44 min |
| Aug 10, 5:50 AM CDT | Special Weather Statement | OUN | Hughes | 10 min |
| Aug 10, 5:58 AM CDT | Special Weather Statement | OUN | Alfalfa, Garfield, Grant, Kay, Noble | 47 min |
| Aug 10, 6:48 AM CDT | Special Weather Statement | OUN | Alfalfa, Blaine, Garfield, Grant, Kay, Kingfisher and 5 more | 42 min |
| Aug 10, 7:27 AM CDT | Special Weather Statement | OUN | Canadian, Logan, Oklahoma | 33 min |
| Aug 10, 8:09 AM CDT | Special Weather Statement | OUN | Beckham, Caddo, Grady, Washita | 51 min |
| Aug 10, 9:26 AM CDT | Special Weather Statement | OUN | Kay | 19 min |
| Aug 10, 6:44 PM CDT | Special Weather Statement | OUN | Payne | 16 min |
Nearby
Special Weather Statements in Oklahoma, 2011Every 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.