Alert archive / Nebraska / Flash Flood Warnings in 2019
Flash Flood Warning 2, NWS North Platte, NE
NWS North Platte, NE issued this flash flood warning at Mar 14, 2019, 6:47 AM CDT for Boyd County, Holt County, Nebraska. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Mar 14, 2019, 6:47 AM CDT (11:47 UTC)
- Expired
- Mar 14, 2019, 12:45 PM CDT
- In force
- 6 hr
- Issued by
- NWS North Platte, NE
- Area
- Storm-based polygon
- Flood severity
- Unknown
Counties Boyd County, NE, Holt County, NE
The radar
The Sioux Falls radar (KFSD), 167 km from the middle of the area, began a volume at 11:50 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
Aberdeen, SD (KABR), launched 00:00Z, 11.8 hours before the alert went out and 236 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 503 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 366 m²/s²
- 0-3 km storm-relative helicity
- 834 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
714 WGUS53 KLBF 141147 FFWLBF NEC015-089-141745- /O.NEW.KLBF.FF.W.0002.190314T1147Z-190314T1745Z/ /00000.U.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service North Platte NE 647 AM CDT THU MAR 14 2019 The National Weather Service in North Platte has issued a * Flash Flood Warning for... A Dam Break in... Northeastern Holt County in north central Nebraska... Southeastern Boyd County in north central Nebraska... * Until 1245 PM CDT. * At 646 AM CDT, county dispatch reported the failure of Spencer Dam. More details will be presented as they become available. * Locations impacted include... Spencer Dam and Redbird State Wildlife Management Area. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to higher ground now. Act quickly to protect your life. && LAT...LON 4278 9831 4273 9831 4278 9871 4283 9868 $$ CDC
2 follow-up statements
626 WGUS73 KLBF 141219 FFSLBF Flash Flood Statement National Weather Service North Platte NE 719 AM CDT THU MAR 14 2019 NEC015-089-141745- /O.CON.KLBF.FF.W.0002.000000T0000Z-190314T1745Z/ /00000.U.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/ HOLT NE-BOYD NE- 719 AM CDT THU MAR 14 2019 ...A FLASH FLOOD WARNING FOR A DAM FAILURE REMAINS IN EFFECT UNTIL 1245 PM CDT FOR NORTHEASTERN HOLT AND SOUTHEASTERN BOYD COUNTIES... At 713 AM CDT county dispatch reported the Spencer Dam failed sometime Wednesday afternoon around 5 pm. This likely caused flash flooding downstream on the Niobrara River. The extent of the flooding at this time is unknown. Locations impacted include... Spencer Dam and Redbird State Wildlife Management Area. This includes Highway 281 between mile markers 206 and 209. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to higher ground now. Act quickly to protect your life. && LAT...LON 4278 9831 4273 9831 4278 9871 4283 9868 $$ CDC
599 WGUS73 KLBF 141555 FFSLBF Flash Flood Statement National Weather Service North Platte NE 1055 AM CDT THU MAR 14 2019 NEC015-089-141745- /O.CON.KLBF.FF.W.0002.000000T0000Z-190314T1745Z/ /00000.0.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Holt NE-Boyd NE- 1055 AM CDT THU MAR 14 2019 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1245 PM CDT FOR NORTHEASTERN HOLT AND SOUTHEASTERN BOYD COUNTIES... At 1050 AM CDT, flash flooding was occurring along the Niobrara river. This was due to the failure of the Spencer Dam. The latest information we have is that the dam failed around 5 AM CDT this morning. Some locations that will experience flooding include... Redbird State Wildlife Management Area. This includes Highway 281 between mile markers 206 and 209. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to higher ground now. Act quickly to protect your life. && LAT...LON 4278 9831 4273 9831 4278 9871 4283 9868 $$ Taylor
The office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 14, 6:04 AM CDT | Areal Flood Advisory | LBF | Blaine, Boyd, Brown, Custer, Garfield, Holt and 6 more | 12 hr |
| Mar 14, 6:18 PM CDT | Flash Flood Warning | LBF | Wheeler | 12 hr |
| Mar 14, 6:27 PM CDT | Areal Flood Advisory | LBF | Blaine, Boyd, Brown, Custer, Garfield, Holt and 4 more | 67 hr |
Nearby
Flash Flood Warnings in Nebraska, 2019Every flash flood warning in 2019
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.