Alert archive / Nebraska / Flash Flood Warnings in 2017
Flash Flood Warning 14, NWS North Platte, NE
NWS North Platte, NE issued this flash flood warning at Aug 19, 2017, 7:54 PM CDT for Blaine County, Loup County, Rock 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
- Aug 19, 2017, 7:54 PM CDT (00:54 UTC)
- Expired
- Aug 20, 2017, 2:00 AM CDT
- In force
- 6 hr
- Issued by
- NWS North Platte, NE
- Area
- Storm-based polygon
- Flood severity
- None
Counties Blaine County, NE, Loup County, NE, Rock County, NE
The radar
The North Platte radar (KLNX), 87 km from the middle of the area, began a volume at 00:56 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 00:00Z, 0.9 hours before the alert went out and 137 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
- 2449 J/kg
- Mixed-layer CIN
- -45 J/kg
- Mixed-layer LCL
- 2367 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 62 m²/s²
- 0-3 km storm-relative helicity
- 144 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 6.1
The text
As transmitted.
907
WGUS53 KLBF 200054
FFWLBF
NEC009-115-149-200700-
/O.NEW.KLBF.FF.W.0014.170820T0054Z-170820T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service North Platte NE
754 PM CDT SAT AUG 19 2017
The National Weather Service in North Platte has issued a
* Flash Flood Warning for...
Southeastern Rock County in north central Nebraska...
Northern Loup County in north central Nebraska...
East central Blaine County in north central Nebraska...
* Until 200 AM CDT Sunday
* At 753 PM CDT, Doppler radar indicated heavy rain across the warned
area. Up to three inches of rain have already fallen. Flash
flooding is expected to begin shortly.
* Some locations that will experience flooding include...
Rose, Fox Bayou, Almeria Meadow State Wildlife Management Area,
Horseshoe Bend Lake and Hannamon Bayou Campground.
Additional rainfall amounts of up to 2 inches are possible in the
warned area.
This includes Highway 183 between mile markers 132 and 155.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 4231 9930 4193 9927 4185 9947 4185 9976
4206 9972 4209 9968 4208 9967 4210 9966
4218 9955
$$
Taylor1 follow-up statement
604
WGUS73 KLBF 200325
FFSLBF
Flash Flood Statement
National Weather Service North Platte NE
1025 PM CDT SAT AUG 19 2017
NEC009-115-149-200700-
/O.CON.KLBF.FF.W.0014.000000T0000Z-170820T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Rock NE-Loup NE-Blaine NE-
1025 PM CDT SAT AUG 19 2017
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 200 AM CDT FOR
SOUTHEASTERN ROCK...NORTHERN LOUP AND EAST CENTRAL BLAINE COUNTIES...
At 1024 PM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. 2 to 6 inches of rain have
fallen. Flash flooding is expected.
Some locations that will experience flooding include...
Rose, Fox Bayou, Almeria Meadow State Wildlife Management Area,
Horseshoe Bend Lake and Hannamon Bayou Campground.
Additional rainfall amounts of 1 inch is possible in the warned area.
This includes Highway 183 between mile markers 132 and 155.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 4231 9930 4193 9927 4185 9947 4185 9976
4206 9972 4209 9968 4208 9967 4210 9966
4218 9955
$$
RobergThe office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 19, 7:14 PM CDT | Severe Thunderstorm Warning | LBF | Blaine, Loup, Rock | 46 min |
| Aug 19, 7:39 PM CDT | Tornado Warning | LBF | Loup | 51 min |
| Aug 19, 8:02 PM CDT | Tornado Warning | LBF | Loup | 43 min |
| Aug 19, 8:44 PM CDT | Severe Thunderstorm Warning | LBF | Custer | 61 min |
| Aug 19, 8:48 PM CDT | Severe Thunderstorm Warning | LBF | Loup | 27 min |
| Aug 19, 9:01 PM CDT | Tornado Warning | LBF | Custer | 29 min |
| Aug 19, 9:20 PM CDT | Flash Flood Warning | LBF | Custer, Loup | 6 hr |
| Aug 19, 9:45 PM CDT | Severe Thunderstorm Warning | LBF | Custer | 45 min |
| Aug 19, 10:20 PM CDT | Special Weather Statement | LBF | Loup | 40 min |
| Aug 19, 10:40 PM CDT | Special Weather Statement | LBF | Custer | 50 min |
Nearby
Flash Flood Warnings in Nebraska, 2017Every flash flood warning in 2017
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.