Alert archive / Oklahoma / Flash Flood Watches in 2015

Flash Flood Watch 4, NWS Norman, OK

May 20, 201548 counties in Oklahoma; 8 counties in Texas

NWS Norman, OK issued this flash flood watch at May 20, 2015, 8:46 PM CDT for 48 counties in Oklahoma; 8 counties in Texas. It took effect at May 22, 2015, 12:00 AM CDT. It was in force for 4 days.

The area

The counties it named.

The facts

Issued: May 20, 2015, 8:46 PM CDT (01:46 UTC)
In effect from: May 22, 2015, 12:00 AM CDT
Expired: May 25, 2015, 7:00 PM CDT
In force: 4 days
Issued by: NWS Norman, OK
Flood severity: None

All 56 counties

Alfalfa County, OK, Atoka County, OK, Beckham County, OK, Blaine County, OK, Bryan County, OK, Caddo County, OK, Canadian County, OK, Carter County, OK, Cleveland County, OK, Coal County, OK, Comanche County, OK, Cotton County, OK, Custer County, OK, Dewey County, OK, Ellis County, OK, Garfield County, OK, Garvin County, OK, Grady County, OK, Grant County, OK, Greer County, OK, Harmon County, OK, Harper County, OK, Hughes County, OK, Jackson County, OK, Jefferson County, OK, Johnston County, OK, Kay County, OK, Kingfisher County, OK, Kiowa County, OK, Lincoln County, OK, Logan County, OK, Love County, OK, Major County, OK, Marshall County, OK, McClain County, OK, Murray County, OK, Noble County, OK, Oklahoma County, OK, Payne County, OK, Pontotoc County, OK, Pottawatomie County, OK, Roger Mills County, OK, Seminole County, OK, Stephens County, OK, Tillman County, OK, Washita County, OK, Woods County, OK, Woodward 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 Norman radar (KTLX), 81 km from the middle of the area, began a volume at 01:48 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.

What forecasters said that day

The local office's own words before this flash 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 flash flood watch went out at May 20, 6:43 PM CDT, 2 hours 3 minutes earlier.

Area forecast discussion, May 20, 6:43 PM CDT, 2 hours 3 minutes before

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Hazardous weather outlook, May 20, 12:00 PM CDT, 8 hours 46 minutes before

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In the hours before

Local storm report, May 20, 3:27 PM CDT, 5 hours 19 minutes before

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Local storm report, May 20, 3:34 PM CDT, 5 hours 12 minutes before

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Local storm report, May 20, 3:55 PM CDT, 4 hours 51 minutes before

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Local storm report, May 20, 5:34 PM CDT, 3 hours 12 minutes before

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Local storm report, May 20, 6:03 PM CDT, 2 hours 43 minutes before

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      <p id="message2">
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      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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Local storm report, May 20, 6:09 PM CDT, 2 hours 37 minutes before

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      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
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      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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The office that day

Everything else NWS Norman, OK issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 20, 9:33 PM CDT	Special Weather Statement	OUN	Stephens	27 min
May 20, 9:57 PM CDT	Special Weather Statement	OUN	Carter	48 min
May 20, 10:39 PM CDT	Special Weather Statement	OUN	Carter	36 min
May 20, 11:45 PM CDT	Areal Flood Warning	OUN	Atoka, Bryan, Carter, Coal, Hughes, Jefferson and 5 more	6 hr
May 20, 11:46 PM CDT	Special Weather Statement	OUN	Stephens	29 min
May 21, 12:10 AM CDT	Special Weather Statement	OUN	Murray	35 min
May 21, 5:52 AM CDT	Areal Flood Warning	OUN	Atoka, Bryan, Carter, Coal, Cotton, Jefferson and 4 more	12 hr
May 21, 6:26 AM CDT	River Flood Warning	OUN	Caddo, Kiowa, Washita	22 hr
May 21, 6:07 PM CDT	Areal Flood Warning	OUN	Atoka, Bryan, Carter, Coal, Cotton, Jefferson and 5 more	12 hr

Nearby

Flash Flood Watches in Oklahoma, 2015 Flash Flood Watches in Texas, 2015 Every flash flood watch 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.