Alert archive / Arkansas / Special Weather Statements in 2009
Special Weather Statement, NWS Tulsa, OK
NWS Tulsa, OK issued this special weather statement at Jul 28, 2009, 8:07 PM CDT for Carroll County, Arkansas. It was in force for 23 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
- Jul 28, 2009, 8:07 PM CDT (01:07 UTC)
- Expired
- Jul 28, 2009, 8:30 PM CDT
- In force
- 23 min
- Issued by
- NWS Tulsa, OK
County Carroll County, AR
The radar
The Springfield radar (KSGF), 112 km from the middle of the area, began a volume at 01:10 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, 1.1 hours before the alert went out and 82 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
- 1454 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 1117 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 7 m²/s²
- 0-3 km storm-relative helicity
- 50 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
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 Tulsa, OK wrote its last area forecast discussion before this special weather statement went out at Jul 28, 6:00 PM CDT, 2 hours 7 minutes earlier.
Area forecast discussion, Jul 28, 6:00 PM CDT, 2 hours 7 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 600 PM CDT TUE JUL 28 2009 ...AVIATION... .DISCUSSION... VFR CONDITIONS ARE LARGELY EXPECTED THROUGH THE TAF PERIOD. HOWEVER DIFFICULTY IN TIMING THUNDERSTORMS PROBABILITIES WILL REMAIN. BEST CHANCES FOR VFR CIGS AND VSBYS IN THUNDER WILL REMAIN ACROSS THE NORTHERN OK AND NW AR TAF SITES THROUGH TONIGHT AS A SURFACE BOUNDARY MAKES ITS WAY SOUTH. LOWER THUNDERSTORM CHANCES WILL CONTINUE AT ALL SITES TOMORROW AFTERNOON...HOWEVER AREAL COVERAGE OF STORMS SUGGESTS THAT VFR CONDITIONS WILL PREVAIL. && .TSA WATCHES/WARNINGS/ADVISORIES... OK...NONE. AR...NONE. && AVIATION...23
Hazardous weather outlook, Jul 28, 4:57 PM CDT, 3 hours 10 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TULSA OK 457 PM CDT TUE JUL 28 2009 ARZ001-002-010-011-019-020-029-OKZ049-053>076-291000- ADAIR OK-BENTON AR-CARROLL AR-CHEROKEE OK-CHOCTAW OK-CRAIG OK- CRAWFORD AR-CREEK OK-DELAWARE OK-FRANKLIN AR-HASKELL OK-LATIMER OK- LE FLORE OK-MADISON AR-MAYES OK-MCINTOSH OK-MUSKOGEE OK-NOWATA OK- OKFUSKEE OK-OKMULGEE OK-OSAGE OK-OTTAWA OK-PAWNEE OK-PITTSBURG OK- PUSHMATAHA OK-ROGERS OK-SEBASTIAN AR-SEQUOYAH OK-TULSA OK-WAGONER OK- WASHINGTON OK-WASHINGTON AR- 500 PM CDT TUE JUL 28 2009 ...SEVERE WEATHER RISK TO CONTINUE THROUGH THE EVENING HOURS... THIS OUTLOOK IS FOR NORTHWEST AND WEST CENTRAL ARKANSAS AS WELL AS MUCH OF EASTERN OKLAHOMA. .DAY ONE...THIS AFTERNOON AND TONIGHT. SEVERE THUNDERSTORM. RISK...LIMITED. AREA...PRIMARILY WEST OF A MIAMI TO MCALESTER LINE. ONSET...ONGOING. DISCUSSION... SCATTERED THUNDERSTORMS HAVE DEVELOPED THIS AFTERNOON ACROSS NORTH CENTRAL OKLAHOMA AND SOUTHERN KANSAS. THESE STORMS WERE IN ADVANCE OF A WEAK FRONTAL BOUNDARY...AND BEING AIDED BY A PASSING DISTURBANCE ALOFT. INSTABILITY HAS INCREASED ACROSS EASTERN OKLAHOMA THIS AFTERNOON WHILE WINDS ALOFT HAVE ALSO STRENGTHENED AHEAD OF THE UPPER DISTURBANCE. THIS HAS PROVIDED AN ENVIRONMENT SUPPORTIVE OF SEVERE WEATHER...PRIMARILY ACROSS NORTHEAST OKLAHOMA WHERE LARGE HAIL AND WIND GUSTS OF 60 MPH WILL BE POSSIBLE WITH THE STRONGEST STORMS. STORM INTENSITY IS EXPECTED TO GRADUALLY WEAKEN AFTER SUNSET...HOWEVER AN ISOLATED SEVERE WEATHER RISK MAY CONTINUE THROUGH THE OVERNIGHT HOURS AS THE FRONTAL BOUNDARY APPROACHES. SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT... LOCAL SPOTTER ACTIVATION MAY BE NEEDED PRIMARILY ACROSS NORTHEAST OKLAHOMA THROUGH THE EVENING HOURS. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. WEDNESDAY...SEVERE THUNDERSTORM POTENTIAL...HEAVY RAIN POTENTIAL. THURSDAY...SEVERE THUNDERSTORM POTENTIAL. FRIDAY THROUGH MONDAY...THUNDERSTORM POTENTIAL. EXTENDED DISCUSSION... CONFIDENCE IS INCREASING THAT STRONG TO SEVERE THUNDERSTORMS WILL IMPACT NORTHEAST OKLAHOMA AND NORTHWEST ARKANSAS LATE WEDNESDAY INTO THURSDAY. THE LIKELY SCENARIO IS FOR STORMS TO DEVELOP ACROSS THE HIGH PLAINS WEDNESDAY AFTERNOON AND DEVELOP INTO A LARGE COMPLEX THAT TRACKS EASTWARD OVERNIGHT. THE COMBINATION OF AMPLE INSTABILITY AND INCREASING WINDS ALOFT WILL SUPPORT AN INCREASING RISK OF STRONG WINDS WITH THIS STORM COMPLEX. ADDITIONALLY...LOCALLY HEAVY RAINS ARE LIKELY AS THIS STORM COMPLEX TRACKS EASTWARD ACROSS THE AREA. THUNDERSTORM CHANCES WILL CONTINUE THROUGH THE WEEKEND INTO EARLY NEXT WEEK...AS THE WEATHER PATTERN REMAINS ACTIVE FOR SUMMER WITH FRONTAL BOUNDARIES REMAIN IN THE VICINITY. EMERGENCY MANAGEMENT PLANNING STATEMENT... SEVERE WEATHER WATCHES AND WARNINGS SHOULD BE ANTICIPATED FOR THE LATE WEDNESDAY INTO THURSDAY TIMEFRAME. WWW.SRH.NOAA.GOV/TULSA CONTAINS ADDITIONAL INFORMATION.
In the hours before
Special weather statement, Jul 28, 7:45 PM CDT, 22 minutes before
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</html>Local storm report, Jul 28, 8:07 PM CDT, 0 minutes before
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</html>The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 28, 7:23 PM CDT | Severe Thunderstorm Warning | TSA | Creek, Osage, Pawnee | 67 min |
| Jul 28, 7:45 PM CDT | Special Weather Statement | TSA | Delaware | 30 min |
| Jul 28, 8:01 PM CDT | Special Weather Statement | TSA | Adair | 29 min |
| Jul 28, 8:03 PM CDT | Severe Thunderstorm Warning | TSA | Creek | 57 min |
| Jul 28, 8:36 PM CDT | Severe Thunderstorm Warning | TSA | Creek, Okfuskee, Okmulgee | 54 min |
| Jul 29, 1:51 AM CDT | Special Weather Statement | TSA | Carroll | 39 min |
Nearby
Special Weather Statements in Arkansas, 2009Every special weather statement in 2009
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.