Alert archive / Nebraska / Flash Flood Watches in 2014

Flash Flood Watch 2, NWS Hastings, NE

August 26, 201421 counties in Nebraska; 5 counties in Kansas

NWS Hastings, NE issued this flash flood watch at Aug 26, 2014, 3:44 PM CDT for 21 counties in Nebraska; 5 counties in Kansas. It took effect at Aug 26, 2014, 10:00 PM CDT. It was in force for 36 hr.

The area

The counties it named.

The facts

Issued: Aug 26, 2014, 3:44 PM CDT (20:44 UTC)
In effect from: Aug 26, 2014, 10:00 PM CDT
Expired: Aug 28, 2014, 9:47 AM CDT
In force: 36 hr
Issued by: NWS Hastings, NE
Flood severity: None

All 26 counties

Jewell County, KS, Osborne County, KS, Phillips County, KS, Rooks County, KS, Smith County, KS, Adams County, NE, Buffalo County, NE, Clay County, NE, Fillmore County, NE, Franklin County, NE, Furnas County, NE, Greeley County, NE, Hall County, NE, Hamilton County, NE, Harlan County, NE, Howard County, NE, Kearney County, NE, Merrick County, NE, Nance County, NE, Nuckolls County, NE, Phelps County, NE, Polk County, NE, Sherman County, NE, Valley County, NE, Webster County, NE, York County, NE

The radar

The Grand Island radar (KUEX), 29 km from the middle of the area, began a volume at 20:44 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

Omaha, NE (KOAX), launched 12:00Z, 8.7 hours before the alert went out and 206 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: 1425 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: -79 m²/s²
0-3 km storm-relative helicity: -59 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 flash flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Hastings, NE wrote its last area forecast discussion before this flash flood watch went out at Aug 26, 1:16 PM CDT, 2 hours 28 minutes earlier.

Area forecast discussion, Aug 26, 1:16 PM CDT, 2 hours 28 minutes before

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Hazardous weather outlook, Aug 26, 5:40 AM CDT, 10 hours 4 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 25, 11:28 PM CDT	Special Weather Statement	GID	Clay	32 min
Aug 25, 11:31 PM CDT	Special Weather Statement	GID	Kearney	29 min
Aug 25, 11:47 PM CDT	Special Weather Statement	GID	Hamilton	28 min
Aug 25, 11:53 PM CDT	Severe Thunderstorm Warning	GID	York	52 min
Aug 26, 12:04 AM CDT	Severe Thunderstorm Warning	GID	Adams, Hall	41 min
Aug 26, 12:14 AM CDT	Special Weather Statement	GID	Hamilton	31 min
Aug 26, 12:25 AM CDT	Special Weather Statement	GID	Clay	35 min
Aug 26, 12:42 AM CDT	Areal Flood Advisory	GID	York	8 hr
Aug 26, 12:51 AM CDT	Special Weather Statement	GID	York	24 min
Aug 26, 1:13 AM CDT	Flash Flood Warning	GID	York	3 hr

Nearby

Flash Flood Watches in Nebraska, 2014 Flash Flood Watches in Kansas, 2014 Every flash flood watch in 2014

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.