Alert archive / Texas / Flood Watches in 2016
Flood Watch 3, NWS Norman, OK
NWS Norman, OK issued this flood watch at Apr 20, 2016, 3:54 AM CDT for Harmon County, Jackson County, Tillman County, Oklahoma; 8 counties in Texas. It took effect at Apr 20, 2016, 7:00 PM CDT. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Apr 20, 2016, 3:54 AM CDT (08:54 UTC)
- In effect from
- Apr 20, 2016, 7:00 PM CDT
- Expired
- Apr 20, 2016, 10:48 PM CDT
- In force
- 4 hr
- Issued by
- NWS Norman, OK
- Flood severity
- None
Counties 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), 41 km from the middle of the area, began a volume at 08:57 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, 8.9 hours before the alert went out and 211 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
- 65 J/kg
- Mixed-layer CIN
- -27 J/kg
- Mixed-layer LCL
- 1165 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 44 m²/s²
- 0-3 km storm-relative helicity
- 103 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
What forecasters said that day
The local office's own words before this flood 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 flood watch went out at Apr 20, 3:50 AM CDT, 4 minutes earlier.
Area forecast discussion, Apr 20, 3:50 AM CDT, 4 minutes before
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</html>Hazardous weather outlook, Apr 19, 8:04 PM CDT, 7 hours 50 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE NORMAN OK 804 PM CDT TUE APR 19 2016 OKZ004>048-050>052-TXZ083>090-210115- 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- 804 PM CDT TUE APR 19 2016 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHERN... WESTERN...CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS. .DAY ONE...REST OF TONIGHT... .THUNDERSTORMS... STRONG TO SEVERE STORMS ARE POSSIBLE THROUGH 2 AM IN PARTS OF SOUTHERN OKLAHOMA AND ALL OF WESTERN NORTH TEXAS... GENERALLY SOUTH OF A LINE FROM QUANAH TEXAS... TO FREDERICK AND LAWTON... TO PAULS VALLEY AND ADA OKLAHOMA. THE HIGHEST CHANCE FOR SEVERE STORMS WILL BE IN PARTS OF WESTERN NORTH TEXAS. LARGE HAIL UP TO THE SIZE OF TENNIS BALLS AND WIND GUSTS UP TO 70 MPH ARE THE MAIN CONCERNS. THE SEVERE POTENTIAL WILL DECREASE OVERNIGHT... BUT SHOWERS AND THUNDERSTORMS WILL CONTINUE TO MOVE ACROSS THE AREA INTO WEDNESDAY MORNING. .HEAVY RAINFALL... HEAVY RAINFALL WILL BE POSSIBLE IN SOME AREAS THROUGH EARLY WEDNESDAY. SOME LOCATIONS COULD RECEIVE ANOTHER ONE TO TWO INCHES OF RAINFALL... ESPECIALLY ACROSS PORTIONS OF SOUTHWESTERN AND CENTRAL OKLAHOMA. A FLOOD WATCH IS IN EFFECT. .RIVER FLOODING... HEAVY RAINFALL SINCE SATURDAY HAS ELEVATED LEVELS OF SEVERAL RIVERS IN SOUTHERN OKLAHOMA AND NORTHERN TEXAS INTO FLOOD. DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD...AND CERTAINLY DO NOT DRIVE AROUND BARRICADES. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY... .HEAVY RAINFALL... FLASH FLOODING WILL REMAIN POSSIBLE ACROSS SOUTHERN AND CENTRAL OKLAHOMA...AND PORTIONS OF WESTERN NORTH TEXAS WEDNESDAY AS HEAVY RAINFALL CONTINUES OVER THE REGION. .RIVER FLOODING... MANY RIVERS ACROSS SOUTHERN OKLAHOMA AND NORTHERN TEXAS WILL LIKELY REMAIN ABOVE FLOOD STAGES THROUGH WEDNESDAY. .THUNDERSTORMS... THUNDERSTORMS WILL REMAIN POSSIBLE THROUGH EARLY THURSDAY. THUNDERSTORM CHANCES WILL RETURN TO THE REGION SUNDAY AND MONDAY. SEVERE STORMS APPEAR POSSIBLE DURING THIS TIME. GET GRAPHICS AND MORE DETAILS AT WEATHER.GOV/NORMAN...AND FOLLOW OUR WEATHER FORECAST OFFICE ON TWITTER AND FACEBOOK.
In the hours before
Local storm report, Apr 19, 11:21 PM CDT, 4 hours 33 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
1121 PM CDT TUE APR 19 2016
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1114 PM HAIL 3 S MEAD 33.96N 96.51W
04/19/2016 E1.75 INCH BRYAN OK PUBLIC
&&
EMAXWELLThe office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 19, 7:38 PM CDT | Areal Flood Advisory | OUN | Blaine, Caddo, Canadian, Comanche, Garfield, Kingfisher and 3 more | 112 min |
| Apr 19, 8:04 PM CDT | Special Weather Statement | OUN | Jefferson | 41 min |
| Apr 19, 8:14 PM CDT | Areal Flood Advisory | OUN | Comanche, Cotton, Grady, Jefferson, Stephens | 3 hr |
| Apr 19, 8:23 PM CDT | Areal Flood Advisory | OUN | Caddo, Canadian, Cleveland, Comanche, Garfield, Garvin and 7 more | 3 hr |
| Apr 19, 8:34 PM CDT | Special Weather Statement | OUN | Jefferson | 56 min |
| Apr 19, 8:53 PM CDT | Areal Flood Advisory | OUN | Garfield, Noble | 112 min |
| Apr 19, 9:17 PM CDT | Areal Flood Advisory | OUN | Carter, Garvin, Grady, Jefferson, Johnston, Love and 4 more | 3 hr |
| Apr 19, 9:23 PM CDT | Special Weather Statement | OUN | Carter, Love, Marshall, Murray | 52 min |
| Apr 19, 9:50 PM CDT | Areal Flood Advisory | OUN | Cotton, Jefferson, Tillman | 3 hr |
| Apr 19, 10:13 PM CDT | Severe Thunderstorm Warning | OUN | Bryan, Love, Marshall | 47 min |
| Apr 19, 10:36 PM CDT | Areal Flood Advisory | OUN | Bryan, Coal, Johnston, Marshall, Murray, Pontotoc | 3 hr |
| Apr 19, 10:53 PM CDT | Severe Thunderstorm Warning | OUN | Bryan, Marshall | 52 min |
| Apr 19, 11:41 PM CDT | Severe Thunderstorm Warning | OUN | Bryan | 20 min |
| Apr 19, 11:45 PM CDT | Areal Flood Advisory | OUN | Bryan, Love, Marshall | 3 hr |
| Apr 20, 9:25 AM CDT | River Flood Warning | OUN | Atoka | 24 hr |
| Apr 19, 7:05 PM CDT | Special Weather Statement | OUN | Knox | 25 min |
| Apr 19, 7:18 PM CDT | Special Weather Statement | OUN | Foard | 27 min |
| Apr 19, 7:27 PM CDT | Severe Thunderstorm Warning | OUN | Archer, Clay, Wichita | 48 min |
| Apr 19, 7:28 PM CDT | Special Weather Statement | OUN | Knox | 32 min |
| Apr 19, 7:34 PM CDT | Severe Thunderstorm Warning | OUN | Foard, Knox | 56 min |
| Apr 19, 8:19 PM CDT | Severe Thunderstorm Warning | OUN | Baylor, Knox, Wilbarger | 56 min |
| Apr 19, 8:25 PM CDT | Severe Thunderstorm Warning | OUN | Baylor, Knox | 50 min |
| Apr 19, 8:33 PM CDT | Flash Flood Warning | OUN | Baylor, Knox | 3 hr |
| Apr 19, 9:08 PM CDT | Severe Thunderstorm Warning | OUN | Archer, Baylor, Knox | 67 min |
| Apr 19, 9:29 PM CDT | Severe Thunderstorm Warning | OUN | Archer, Clay | 61 min |
| Apr 19, 10:18 PM CDT | Severe Thunderstorm Warning | OUN | Archer, Clay | 42 min |
Nearby
Flood Watches in Texas, 2016Flood Watches in Oklahoma, 2016Every flood watch in 2016
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.