Alert archive / Nebraska / Flash Flood Watches in 2009

Flash Flood Watch 2, NWS Hastings, NE

June 1, 200915 counties in Nebraska; Phillips County, Rooks County, Smith County, Kansas

NWS Hastings, NE issued this flash flood watch at Jun 1, 2009, 3:16 PM CDT for 15 counties in Nebraska; Phillips County, Rooks County, Smith County, Kansas. It took effect at Jun 1, 2009, 7:00 PM CDT. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued: Jun 1, 2009, 3:16 PM CDT (20:16 UTC)
In effect from: Jun 1, 2009, 7:00 PM CDT
Expired: Jun 2, 2009, 4:06 AM CDT
In force: 9 hr
Issued by: NWS Hastings, NE
Flood severity: None

Counties Phillips County, KS, Rooks County, KS, Smith County, KS, Adams County, NE, Clay County, NE, Fillmore County, NE, Franklin County, NE, Furnas County, NE, Gosper County, NE, Hamilton County, NE, Harlan County, NE, Kearney County, NE, Nuckolls County, NE, Phelps County, NE, Polk County, NE, Thayer County, NE, Webster County, NE, York County, NE

The radar

The Grand Island radar (KUEX), 16 km from the middle of the area, began a volume at 20:20 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, 8.3 hours before the alert went out and 220 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: 349 J/kg
Mixed-layer CIN: -150 J/kg
Mixed-layer LCL: 1784 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 6 m²/s²
0-3 km storm-relative helicity: 39 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.1

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 Jun 1, 1:40 PM CDT, 1 hour 36 minutes earlier.

Area forecast discussion, Jun 1, 1:40 PM CDT, 1 hour 36 minutes before

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Hazardous weather outlook, Jun 1, 5:11 AM CDT, 10 hours 5 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
Jun 1, 4:44 PM CDT	Special Weather Statement	GID	Thayer	31 min
Jun 1, 5:08 PM CDT	Severe Thunderstorm Warning	GID	Thayer	26 min
Jun 1, 5:24 PM CDT	Special Weather Statement	GID	Thayer	36 min
Jun 1, 5:25 PM CDT	Areal Flood Advisory	GID	Thayer	3 hr
Jun 1, 5:40 PM CDT	Severe Thunderstorm Warning	GID	Nuckolls, Webster	50 min
Jun 1, 6:31 PM CDT	Areal Flood Advisory	GID	Nuckolls	3 hr
Jun 1, 6:31 PM CDT	Special Weather Statement	GID	Fillmore	29 min
Jun 1, 6:32 PM CDT	Severe Thunderstorm Warning	GID	Nuckolls, Webster	33 min
Jun 1, 6:57 PM CDT	Special Weather Statement	GID	Fillmore	33 min
Jun 1, 3:52 PM CDT	Special Weather Statement	GID	Osborne	23 min
Jun 1, 3:59 PM CDT	Severe Thunderstorm Warning	GID	Mitchell, Osborne	46 min
Jun 1, 4:07 PM CDT	Special Weather Statement	GID	Mitchell	23 min
Jun 1, 4:15 PM CDT	Severe Thunderstorm Warning	GID	Mitchell	30 min
Jun 1, 4:24 PM CDT	Special Weather Statement	GID	Jewell	36 min
Jun 1, 4:34 PM CDT	Severe Thunderstorm Warning	GID	Jewell, Mitchell	27 min
Jun 1, 4:45 PM CDT	Areal Flood Advisory	GID	Mitchell	3 hr
Jun 1, 4:55 PM CDT	Special Weather Statement	GID	Mitchell	35 min
Jun 1, 5:02 PM CDT	Severe Thunderstorm Warning	GID	Jewell	43 min

Nearby

Flash Flood Watches in Nebraska, 2009 Flash Flood Watches in Kansas, 2009 Every flash flood watch in 2009

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.