Alert archive / Nebraska / Flash Flood Watches in 2011

Flash Flood Watch 3, NWS Omaha, NE

June 20, 201114 counties in Nebraska; 8 counties in Iowa

NWS Omaha, NE issued this flash flood watch at Jun 20, 2011, 3:31 PM CDT for 14 counties in Nebraska; 8 counties in Iowa. It took effect at Jun 20, 2011, 4:00 PM CDT. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued: Jun 20, 2011, 3:31 PM CDT (20:31 UTC)
In effect from: Jun 20, 2011, 4:00 PM CDT
Expired: Jun 20, 2011, 10:20 PM CDT
In force: 6 hr
Issued by: NWS Omaha, NE
Flood severity: None

All 22 counties

Fremont County, IA, Harrison County, IA, Mills County, IA, Monona County, IA, Montgomery County, IA, Page County, IA, Pottawattamie County, IA, Shelby County, IA, Burt County, NE, Butler County, NE, Cass County, NE, Colfax County, NE, Cuming County, NE, Dodge County, NE, Douglas County, NE, Nemaha County, NE, Otoe County, NE, Platte County, NE, Sarpy County, NE, Saunders County, NE, Thurston County, NE, Washington County, NE

The radar

The Omaha radar (KOAX), 18 km from the middle of the area, began a volume at 20:31 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.

Hazardous weather outlook, Jun 19, 5:40 PM CDT, 21 hours 51 minutes before

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The office that day

Everything else NWS Omaha, NE issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 19, 9:16 PM CDT	Severe Thunderstorm Warning	OAX	Cass, Lancaster, Otoe	44 min
Jun 19, 9:56 PM CDT	Severe Thunderstorm Warning	OAX	Cass, Lancaster, Otoe	49 min
Jun 19, 10:39 PM CDT	Severe Thunderstorm Warning	OAX	Cass, Otoe	51 min
Jun 19, 10:47 PM CDT	Flash Flood Warning	OAX	Otoe	6 hr
Jun 19, 11:31 PM CDT	Severe Thunderstorm Warning	OAX	Cass, Otoe	44 min
Jun 19, 11:36 PM CDT	Severe Thunderstorm Warning	OAX	Lancaster, Saunders	39 min
Jun 19, 11:52 PM CDT	Flash Flood Warning	OAX	Cass	5 hr
Jun 20, 12:13 AM CDT	Severe Thunderstorm Warning	OAX	Douglas, Saunders	37 min
Jun 20, 12:21 AM CDT	Severe Thunderstorm Warning	OAX	Butler, Colfax, Dodge, Saunders	39 min
Jun 20, 12:30 AM CDT	Severe Thunderstorm Warning	OAX	Saunders	24 min
Jun 20, 12:48 AM CDT	Severe Thunderstorm Warning	OAX	Dodge	42 min
Jun 20, 1:33 AM CDT	Severe Thunderstorm Warning	OAX	Burt, Thurston	42 min
Jun 20, 1:38 AM CDT	Severe Thunderstorm Warning	OAX	Butler, Colfax, Platte	52 min
Jun 20, 1:50 AM CDT	Severe Thunderstorm Warning	OAX	Butler, Colfax, Platte	40 min
Jun 20, 2:25 AM CDT	Severe Thunderstorm Warning	OAX	Butler, Colfax, Dodge, Platte, Saunders	50 min
Jun 20, 2:38 AM CDT	Areal Flood Advisory	OAX	Dodge	5 hr
Jun 20, 2:57 AM CDT	Areal Flood Advisory	OAX	Dodge, Saunders	4 hr
Jun 20, 3:55 AM CDT	Severe Thunderstorm Warning	OAX	Butler, Colfax, Platte, Seward	50 min
Jun 20, 8:00 AM CDT	River Flood Warning	OAX	Dodge	24 hr
Jun 20, 5:00 PM CDT	Severe Thunderstorm Warning	OAX	Jefferson	45 min
Jun 20, 5:43 PM CDT	Severe Thunderstorm Warning	OAX	Jefferson, Saline	47 min
Jun 20, 6:22 PM CDT	Severe Thunderstorm Warning	OAX	Platte	38 min
Jun 20, 6:27 PM CDT	Severe Thunderstorm Warning	OAX	Antelope	48 min
Jun 20, 6:37 PM CDT	Severe Thunderstorm Warning	OAX	Gage, Jefferson, Saline	23 min
Jun 20, 6:57 PM CDT	Severe Thunderstorm Warning	OAX	Madison, Platte	63 min
Jun 19, 9:40 PM CDT	Tornado Warning	OAX	Fremont, Page	35 min
Jun 19, 10:12 PM CDT	Tornado Warning	OAX	Fremont, Page	48 min
Jun 20, 1:52 AM CDT	Severe Thunderstorm Warning	OAX	Harrison	38 min
Jun 20, 2:49 AM CDT	Severe Thunderstorm Warning	OAX	Pottawattamie, Shelby	41 min
Jun 20, 2:59 AM CDT	Severe Thunderstorm Warning	OAX	Harrison	46 min
Jun 20, 3:27 AM CDT	Severe Thunderstorm Warning	OAX	Harrison, Shelby	48 min

Nearby

Flash Flood Watches in Nebraska, 2011 Flash Flood Watches in Iowa, 2011 Every flash flood watch in 2011

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.