Alert archive / Nebraska / Areal Flood Warnings in 2017

Areal Flood Warning 13, NWS Omaha, NE

August 16, 2017Butler County, Saunders County, Nebraska

NWS Omaha, NE issued this areal flood warning at Aug 16, 2017, 3:24 PM CDT for Butler County, Saunders County, Nebraska. It was in force for 24 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 16, 2017, 3:24 PM CDT (20:24 UTC)
Expired: Aug 17, 2017, 3:15 PM CDT
In force: 24 hr
Issued by: NWS Omaha, NE
Area: Storm-based polygon
Flood severity: None

Counties Butler County, NE, Saunders County, NE

The radar

The Omaha radar (KOAX), 45 km from the middle of the area, began a volume at 20:25 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

Topeka, KS (KFOE), launched 12:00Z, 8.4 hours before the alert went out and 269 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1464 J/kg
Mixed-layer CIN: -39 J/kg
Mixed-layer LCL: 711 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 202 m²/s²
0-3 km storm-relative helicity: 183 m²/s²
Significant tornado parameter: 1.1
Supercell composite: 8.7

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Omaha, NE wrote its last area forecast discussion before this areal flood warning went out at Aug 16, 2:30 PM CDT, 54 minutes earlier.

Area forecast discussion, Aug 16, 2:30 PM CDT, 54 minutes before

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Hazardous weather outlook, Aug 16, 10:52 AM CDT, 4 hours 32 minutes before

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In the hours before

Local storm report, Aug 16, 9:43 AM CDT, 5 hours 41 minutes before

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Local storm report, Aug 16, 9:44 AM CDT, 5 hours 40 minutes before

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Local storm report, Aug 16, 9:45 AM CDT, 5 hours 39 minutes before

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Local storm report, Aug 16, 9:54 AM CDT, 5 hours 30 minutes before

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Local storm report, Aug 16, 10:42 AM CDT, 4 hours 42 minutes before

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Local storm report, Aug 16, 1:57 PM CDT, 1 hour 27 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
Aug 15, 7:17 PM CDT	Special Weather Statement	OAX	Butler, Dodge, Washington	28 min
Aug 15, 7:49 PM CDT	Special Weather Statement	OAX	Butler	41 min
Aug 15, 8:38 PM CDT	Areal Flood Advisory	OAX	Burt	112 min
Aug 15, 8:48 PM CDT	Special Weather Statement	OAX	Dodge	27 min
Aug 15, 8:52 PM CDT	Special Weather Statement	OAX	Saunders	23 min
Aug 15, 9:23 PM CDT	Special Weather Statement	OAX	Douglas	37 min
Aug 15, 10:41 PM CDT	Areal Flood Advisory	OAX	Douglas, Washington	3 hr
Aug 16, 5:31 AM CDT	River Flood Warning	OAX	Butler	3 days
Aug 16, 6:07 AM CDT	Special Weather Statement	OAX	Gage, Jefferson, Saline	53 min
Aug 16, 6:38 AM CDT	Flash Flood Warning	OAX	Butler, Colfax, Dodge, Platte, Saunders	6 hr
Aug 16, 8:47 AM CDT	River Flood Warning	OAX	Seward	3 days
Aug 16, 8:47 AM CDT	River Flood Warning	OAX	Saline	48 hr
Aug 16, 8:47 AM CDT	River Flood Warning	OAX	Seward	72 hr
Aug 16, 8:47 AM CDT	River Flood Warning	OAX	Seward	5 days
Aug 16, 12:38 PM CDT	Areal Flood Warning	OAX	Butler, Colfax, Saunders	3 hr
Aug 16, 4:30 PM CDT	River Flood Warning	OAX	Saunders	24 hr

Nearby

Areal Flood Warnings in Nebraska, 2017 Every areal flood warning in 2017

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.