Alert archive / Oklahoma / River Flood Warnings in 2015
River Flood Warning 4, NWS Norman, OK
NWS Norman, OK issued this river flood warning at Apr 27, 2015, 2:30 PM CDT for Greer County, Jackson County, Oklahoma. It took effect at Apr 28, 2015, 5:17 AM CDT. It was in force for 26 hr.
The area
The counties it named.
The facts
- Issued
- Apr 27, 2015, 2:30 PM CDT (19:30 UTC)
- In effect from
- Apr 28, 2015, 5:17 AM CDT
- Expired
- Apr 29, 2015, 7:00 AM CDT
- In force
- 26 hr
- Issued by
- NWS Norman, OK
- Area
- Storm-based polygon
- Flood severity
- Minor
Counties Greer County, OK, Jackson County, OK
The radar
The Altus AFB radar (KFDR), 65 km from the middle of the area, began a volume at 19:30 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 river
Written for the forecast point Salt Fork of the Red River at Mangum (MGMO2). The gauge peaked at 7.91 ft at Apr 28, 2015, 11:00 AM CDT.
- Action stage
- 8 ft
- Minor stage
- 9 ft
- Moderate stage
- 11 ft
- Major stage
- 13 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 07300500, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.
What forecasters said that day
The local office's own words before this river flood warning 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 river flood warning went out at Apr 26, 6:21 PM CDT, 20 hours 9 minutes earlier.
Area forecast discussion, Apr 26, 6:21 PM CDT, 20 hours 9 minutes before
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</html>Hazardous weather outlook, Apr 26, 3:19 PM CDT, 23 hours 11 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE NORMAN OK 319 PM CDT SUN APR 26 2015 OKZ004>048-050>052-TXZ083>090-272030- 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- 319 PM CDT SUN APR 26 2015 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 AN ENHANCED RISK OF SEVERE THUNDERSTORMS OVER WESTERN NORTH TEXAS AND PORTIONS OF SOUTHWEST OKLAHOMA... THERE IS ALSO A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS MOST OF SOUTHERN OKLAHOMA. LOCATION... THE ENHANCED RISK EXTENDS SOUTH OF A LINE FROM ALTUS TO WAURIKA. THE SLIGHT RISK INCLUDES ALL AREAS ALONG AND SOUTH OF A LINE FROM ARNETT... TO NORMAN... TO HOLDENVILLE OKLAHOMA. TIMING... NOON TO MIDNIGHT IMPACTS... THE STRONGEST STORMS WILL BE CAPABLE OF PRODUCING DESTRUCTIVE HAIL TO THE SIZE OF BASEBALLS AND 60 TO 70 MPH DAMAGING WIND GUSTS. A FEW TORNADOES WILL ALSO BE POSSIBLE... ESPECIALLY ACROSS PORTIONS OF NORTHERN TEXAS AND SOUTHWESTERN OKLAHOMA. ADDITIONALLY... LOCALIZED HEAVY RAINFALL MAY LEAD TO FLASH FLOODING. DISCUSSION... A FRONTAL BOUNDARY HAS STALLED NEAR THE RED RIVER AND A DEEPENING AREA OF LOW PRESSURE ACROSS WEST TEXAS WILL ALLOW A DRYLINE TO MIX EASTWARD... FROM SOUTHWESTERN OKLAHOMA INTO CENTRAL TEXAS THROUGH THE AFTERNOON HOURS. SOUTHEAST WINDS AHEAD OF THE DRYLINE WILL ALLOW CONTINUAL TRANSPORT OF ABUNDANT LOW LEVEL MOISTURE... WHICH WILL COMBINE WITH SUFFICIENT HEATING FOR THE PRODUCTION OF MODERATE INSTABILITY. MEANWHILE... A STRONG UPPER LEVEL STORM SYSTEM WILL CONTINUE TO MOVE INTO THE UNSTABLE AIRMASS THIS AFTERNOON... RESULTING IN RAPID THUNDERSTORM DEVELOPMENT ALONG BOTH THE DRYLINE AND THE STALLED FRONT... WHICH MAY BEGIN A SLOW RETREAT NORTHWARD LATE IN THE DAY. INITIAL STORMS WILL LIKELY BECOME SEVERE RAPIDLY. COLD TEMPERATURES ALOFT WILL PROMOTE LARGE HAIL GROWTH... AND SHEAR WILL SUPPORT HAIL TO THE SIZE OF BASEBALLS IN THE STRONGEST STORMS. THIS POTENTIAL WILL BE GREATEST ACROSS NORTHERN TEXAS INTO SOUTHWESTERN AND FAR SOUTHERN OKLAHOMA. AS AN AREA OF BACKED SURFACE WINDS DEVELOPS DURING THE LATE AFTERNOON AND EARLY EVENING... LOW LEVEL SHEAR WILL INCREASE THE CHANCE FOR TORNADO DEVELOPMENT WITHIN THE STRONGEST STORMS ACROSS PORTIONS OF NORTHERN TEXAS AND POTENTIALLY INTO FAR SOUTHWESTERN OKLAHOMA. ONE OR MORE STORM CLUSTERS MAY DEVELOP DURING THE EVENING AND OVERNIGHT HOURS. WITH ADEQUATE INSTABILITY AND FAVORABLE WIND PROFILES... SEVERE THUNDERSTORM POTENTIAL IS LIKELY TO LINGER INTO THE EARLY OVERNIGHT... WITH THE MAIN CONCERN BEING LARGE HAIL AND STRONG WIND GUSTS. HEAVY RAINFALL WILL LIKELY ACCOMPANY SOME OF THE STORMS... AND AREAS THAT RECEIVE PROLONGED RAINFALL WITH SEVERAL ROUNDS OF STORMS WILL LIKELY SEE FLOODING. .SPOTTER AND EMERGENCY MANAGEMENT STATEMENT... STORM SPOTTER GROUPS AND EMERGENCY MANAGEMENT PERSONNEL ACROSS THE RISK AREA SHOULD PREPARE FOR SEVERE WEATHER OPERATIONS THIS AFTERNOON AND TONIGHT. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY... .THUNDERSTORMS... THE THREAT OF SEVERE STORMS SHOULD DIMINISH BY EARLY MONDAY... BUT A FEW STRONG STORMS WILL REMAIN POSSIBLE... WITH HAIL AND GUSTY WINDS THE PRIMARY CONCERNS. RAIN IS LIKELY TO LINGER INTO AT LEAST TUESDAY MORNING... BEFORE GRADUALLY WINDING DOWN DURING THE DAY. THE PRIMARY CONCERN MONDAY AND TUESDAY WILL BE THE EVER INCREASING FLOOD POTENTIAL DUE TO PROLONGED HEAVY RAINFALL. AT THIS TIME... AREAS OF WEST CENTRAL INTO CENTRAL... AND SOUTHERN OKLAHOMA... APPEAR TO HAVE THE GREATEST CHANCES FOR FLASH FLOODING AND POSSIBLY RIVER FLOODING. IF MODELS CONTINUE TO DEPICT HEAVY RAINFALL IN THESE AREAS...A FLOOD WATCH MAY BECOME NECESSARY. GET GRAPHICS AND MORE DETAILS AT WEATHER.GOV/NORMAN...AND FOLLOW OUR WEATHER FORECAST OFFICE ON TWITTER AND FACEBOOK. AUSTIN/KURTZ
The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 26, 7:26 PM CDT | Special Weather Statement | OUN | Kiowa | 34 min |
| Apr 26, 7:30 PM CDT | Special Weather Statement | OUN | Caddo | 30 min |
| Apr 26, 7:52 PM CDT | Special Weather Statement | OUN | Caddo | 23 min |
| Apr 26, 8:07 PM CDT | Special Weather Statement | OUN | Caddo | 53 min |
| Apr 26, 8:22 PM CDT | Severe Thunderstorm Warning | OUN | Caddo | 38 min |
| Apr 26, 10:56 PM CDT | Special Weather Statement | OUN | Coal | 49 min |
| Apr 27, 2:00 AM CDT | River Flood Warning | OUN | Custer, Roger Mills | 40 hr |
| Apr 27, 9:01 AM CDT | Special Weather Statement | OUN | Beckham, Greer, Harmon, Jackson, Tillman | 59 min |
| Apr 27, 10:01 AM CDT | Special Weather Statement | OUN | Cotton, Greer, Jackson, Kiowa, Tillman | 44 min |
| Apr 27, 10:57 AM CDT | Special Weather Statement | OUN | Comanche, Cotton, Kiowa, Washita | 48 min |
| Apr 27, 11:49 AM CDT | Areal Flood Advisory | OUN | Comanche, Cotton, Tillman | 56 min |
| Apr 27, 2:10 PM CDT | Areal Flood Advisory | OUN | Stephens | 2 hr |
| Apr 26, 7:33 PM CDT | Special Weather Statement | OUN | Foard | 27 min |
| Apr 27, 3:20 AM CDT | Special Weather Statement | OUN | Baylor | 25 min |
Nearby
River Flood Warnings in Oklahoma, 2015Every river flood warning in 2015
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.