Alert archive / Nebraska / Areal Flood Warnings in 2015

Areal Flood Warning 21, NWS Omaha, NE

December 14, 2015Saunders County, Nebraska

NWS Omaha, NE issued this areal flood warning at Dec 14, 2015, 3:01 PM CST for 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: Dec 14, 2015, 3:01 PM CST (21:01 UTC)
Expired: Dec 15, 2015, 3:00 PM CST
In force: 24 hr
Issued by: NWS Omaha, NE
Area: Storm-based polygon
Flood severity: None

County Saunders County, NE

The radar

The Omaha radar (KOAX), 25 km from the middle of the area, began a volume at 21:01 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

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 9.0 hours before the alert went out and 332 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1128 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: -75 m²/s²
0-3 km storm-relative helicity: -80 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 Dec 14, 11:43 AM CST, 3 hours 18 minutes earlier.

Area forecast discussion, Dec 14, 11:43 AM CST, 3 hours 18 minutes before

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Hazardous weather outlook, Dec 14, 10:38 AM CST, 4 hours 23 minutes before

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In the hours before

Local storm report, Dec 14, 1:57 PM CST, 1 hour 4 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
Dec 14, 8:30 AM CST	River Flood Warning	OAX	Saunders	29 hr
Dec 14, 8:30 AM CST	River Flood Warning	OAX	Saunders	40 hr
Dec 14, 9:21 AM CST	River Flood Warning	OAX	Saunders	24 hr
Dec 14, 9:59 AM CST	River Flood Warning	OAX	Cass	3 days
Dec 14, 1:47 AM CST	River Flood Warning	OAX	Fremont	4 days
Dec 14, 8:17 AM CST	River Flood Warning	OAX	Page	24 hr
Dec 14, 8:36 AM CST	River Flood Warning	OAX	Fremont	70 hr
Dec 14, 8:38 AM CST	River Flood Warning	OAX	Harrison	44 hr

Nearby

Areal Flood Warnings in Nebraska, 2015 Every areal 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.