Alert archive / Texas / Fire Weather Watches in 2006
Fire Weather Watch 21, NWS Norman, OK
NWS Norman, OK issued this fire weather watch at Apr 6, 2006, 3:34 PM CDT for 4 counties in Oklahoma; 8 counties in Texas. It took effect at Apr 7, 2006, 12:00 PM CDT. It was in force for .
The area
The counties it named.
The facts
- Issued
- Apr 6, 2006, 3:34 PM CDT (20:34 UTC)
- In effect from
- Apr 7, 2006, 12:00 PM CDT
- Expired
- Apr 7, 2006, 4:50 AM CDT
- In force
- Issued by
- NWS Norman, OK
Counties Cotton County, OK, Harmon County, OK, Jackson County, OK, Tillman County, OK, Archer County, TX, Baylor County, TX, Clay County, TX, Foard County, TX, Hardeman County, TX, Knox County, TX, Wichita County, TX, Wilbarger County, TX
The radar
The Altus AFB radar (KFDR), 36 km from the middle of the area, began a volume at 20:38 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
Norman, OK (KOUN), launched 12:00Z, 8.6 hours before the alert went out and 205 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
- 563 J/kg
- Mixed-layer CIN
- -428 J/kg
- Mixed-layer LCL
- 1073 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 269 m²/s²
- 0-3 km storm-relative helicity
- 255 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this fire weather watch 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 fire weather watch went out at Apr 6, 2:59 PM CDT, 35 minutes earlier.
Area forecast discussion, Apr 6, 2:59 PM CDT, 35 minutes before
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</html>Hazardous weather outlook, Apr 6, 12:00 PM CDT, 3 hours 34 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
1200 PM CDT THU APR 6 2006
OKZ004>048-050>052-TXZ083>090-071200-
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-
1200 PM CDT THU APR 6 2006
THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.
.DAY ONE...THIS AFTERNOON AND TONIGHT...
THUNDERSTORM OUTLOOK...
THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND
EVENING ACROSS PORTIONS OF WESTERN NORTH TEXAS...AND CENTRAL AND
SOUTHEAST OKLAHOMA.
LOCATION...
MAINLY EAST OF A LINE FROM MEDFORD...TO EL RENO...TO DUNCAN...AND
HENRIETTA TEXAS.
TIMING...
PRIMARILY FROM 1 PM TO 9 PM.
IMPACTS...
THE PRIMARY IMPACTS WILL BE GOLFBALL SIZE HAIL AND WINDS TO 70 MPH.
RECOMMENDED ACTIONS...
STORM SPOTTER GROUPS AND EMERGENCY MANAGEMENT PERSONNEL ACROSS THE
RISK AREA SHOULD BE PREPARED FOR THE POSSIBILITY OF SEVERE STORMS
FROM 1 PM TO 9 PM.
DISCUSSION...
A DRYLINE WILL REACH WESTERN EDGES OF THE SLIGHT RISK AREA BY EARLY
AFTERNOON...WITH HEATING AND CONVERGENCE RESULTING IN SCATTERED
THUNDERSTORMS ALONG IT. THE COMBINATION OF MODERATE INSTABILITY AND
STRONG SHEAR WILL ALLOW STORMS TO QUICKLY BECOME SEVERE...WITH
SUPERCELLS POSSIBLE...WHICH MAY BE ACCOMPANIED BY GOLFBALL SIZE HAIL
AND WINDS TO 70 MPH.
THE DRYLINE HAS MOVED SLOWER THAN EXPECTED...RESULTING IN THE SLIGHT
RISK AREA BEING ADJUSTED SLIGHTLY WESTWARD TO INCLUDE DUNCAN...
WAURIKA...AND HENRIETTA. THE DRYLINE IS FORECAST TO MOVE THROUGH
SOUTHEAST OKLAHOMA AROUND 9 PM...WITH THE RISK OF SEVERE STORMS
MOVING EAST WITH IT.
PROBABILITY TABLE...
VALID THROUGH 700 AM CDT FRIDAY APR 7.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
NWS NORMAN COUNTY WARNING AREA...100 PERCENT.
PROBABILITY OF SEVERE STORMS IF STORMS OCCUR...70 PERCENT.
OTHER HAZARDOUS WEATHER...
STRONG WESTERLY WINDS WILL DEVELOP ACROSS WESTERN OKLAHOMA AND
WESTERN NORTH TEXAS EARLY THIS AFTERNOON...AS THE DRYLINE PASSES.
WINDS OF 25 TO 35 MPH WITH GUSTS NEAR 45 MPH ARE EXPECTED. THESE
WINDS MAY EXPAND FARTHER EASTWARD LATER TODAY. IN ADDITION...LOW
HUMIDITIES AND WARM TEMPERATURES WILL RESULT IN EXTREME FIRE DANGER
BEHIND THE DRYLINE.
.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY...
THUNDERSTORM OUTLOOK...
THE NEXT CHANCE FOR THUNDERSTORMS IS TUESDAY.
OTHER HAZARDOUS WEATHER...
NORTHWEST WINDS OF 25 TO 35 MPH...WITH GUSTS NEAR 45 WILL OVERSPREAD
THE NORTHERN HALF OF OKLAHOMA FRIDAY MORNING...BEFORE EXPANDING
SOUTHWARD DURING THE DAY.
THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AT 7 AM
FRIDAY.
JAMESIn the hours before
Special weather statement, Apr 6, 2:40 PM CDT, 54 minutes before
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</html>Local storm report, Apr 6, 3:16 PM CDT, 18 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 |
|---|---|---|---|---|
| Apr 6, 2:47 PM CDT | Severe Thunderstorm Warning | OUN | Payne | 43 min |
| Apr 6, 3:08 PM CDT | Severe Thunderstorm Warning | OUN | Noble | 52 min |
Nearby
Fire Weather Watches in Texas, 2006Fire Weather Watches in Oklahoma, 2006Every fire weather watch in 2006
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.