Alert archive / Nebraska / Flash Flood Watches in 2008

Flash Flood Watch 3, NWS Hastings, NE

May 25, 20089 counties in Nebraska; 6 counties in Kansas

NWS Hastings, NE issued this flash flood watch at May 25, 2008, 3:58 AM CDT for 9 counties in Nebraska; 6 counties in Kansas. It took effect at May 25, 2008, 11:55 AM CDT. It was in force for 15 hr.

The area

The counties it named.

The facts

Issued: May 25, 2008, 3:58 AM CDT (08:58 UTC)
In effect from: May 25, 2008, 11:55 AM CDT
Expired: May 26, 2008, 3:23 AM CDT
In force: 15 hr
Issued by: NWS Hastings, NE
Flood severity: None

Counties Jewell County, KS, Mitchell County, KS, Osborne County, KS, Phillips County, KS, Rooks County, KS, Smith County, KS, Clay County, NE, Fillmore County, NE, Franklin County, NE, Furnas County, NE, Harlan County, NE, Nuckolls County, NE, Thayer County, NE, Webster County, NE, York County, NE

The radar

The Grand Island radar (KUEX), 34 km from the middle of the area, began a volume at 08:58 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 (KTOP), launched 00:00Z, 9.0 hours before the alert went out and 275 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: 748 J/kg
Mixed-layer CIN: -177 J/kg
Mixed-layer LCL: 1002 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 184 m²/s²
0-3 km storm-relative helicity: 257 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 3.6

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 May 25, 12:25 AM CDT, 3 hours 33 minutes earlier.

Area forecast discussion, May 25, 12:25 AM CDT, 3 hours 33 minutes before

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Hazardous weather outlook, May 24, 7:34 PM CDT, 8 hours 24 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
May 25, 5:10 PM CDT	Severe Thunderstorm Warning	GID	Nuckolls	50 min
May 25, 5:23 PM CDT	Severe Thunderstorm Warning	GID	Nuckolls	37 min
May 25, 5:47 PM CDT	Severe Thunderstorm Warning	GID	Fillmore, Nuckolls, Thayer	43 min
May 25, 6:18 PM CDT	Severe Thunderstorm Warning	GID	Fillmore, Thayer	27 min
May 25, 3:59 PM CDT	Severe Thunderstorm Warning	GID	Osborne	46 min
May 25, 4:07 PM CDT	Severe Thunderstorm Warning	GID	Mitchell, Osborne	38 min
May 25, 4:43 PM CDT	Tornado Warning	GID	Mitchell	47 min
May 25, 4:46 PM CDT	Severe Thunderstorm Warning	GID	Osborne	29 min
May 25, 4:56 PM CDT	Flash Flood Warning	GID	Osborne	5 hr
May 25, 5:23 PM CDT	Flash Flood Warning	GID	Mitchell	4 hr

Nearby

Flash Flood Watches in Nebraska, 2008 Flash Flood Watches in Kansas, 2008 Every flash flood watch in 2008

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.