Alert archive / Nebraska / Flash Flood Warnings in 2016
Flash Flood Warning 16, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this flash flood warning at Jun 17, 2016, 10:40 PM CDT for Dakota County, Dixon County, Nebraska. It was in force for 3 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
- Jun 17, 2016, 10:40 PM CDT (03:40 UTC)
- Expired
- Jun 18, 2016, 1:45 AM CDT
- In force
- 3 hr
- Issued by
- NWS Sioux Falls, SD
- Area
- Storm-based polygon
- Flood severity
- None
Counties Dakota County, NE, Dixon County, NE
The radar
The Sioux Falls radar (KFSD), 115 km from the middle of the area, began a volume at 03:40 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 00:00Z, 3.7 hours before the alert went out and 140 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
- 3543 J/kg
- Mixed-layer CIN
- -70 J/kg
- Mixed-layer LCL
- 1690 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 9 m²/s²
- 0-3 km storm-relative helicity
- 90 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
262
WGUS53 KFSD 180340
FFWFSD
NEC043-051-180645-
/O.NEW.KFSD.FF.W.0016.160618T0340Z-160618T0645Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1040 PM CDT FRI JUN 17 2016
THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
CENTRAL DIXON COUNTY IN NORTHEASTERN NEBRASKA...
NORTHWESTERN DAKOTA COUNTY IN NORTHEASTERN NEBRASKA...
* UNTIL 145 AM CDT
* AT 1040 PM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
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...
PONCA...ALLEN...MARTINSBURG...PONCA STATE PARK AND WATERBURY.
LAT...LON 4236 9685 4266 9686 4267 9672 4266 9670
4265 9669 4262 9671 4260 9671 4258 9669
4257 9666 4235 9665
$$
BT1 follow-up statement
742
WGUS73 KFSD 180528
FFSFSD
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1228 AM CDT SAT JUN 18 2016
NEC043-051-180645-
/O.CON.KFSD.FF.W.0016.000000T0000Z-160618T0645Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DIXON NE-DAKOTA NE-
1228 AM CDT SAT JUN 18 2016
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 145 AM CDT FOR
CENTRAL DIXON AND NORTHWESTERN DAKOTA COUNTIES...
AT 1226 AM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
LIGHT TO MODERATE RAIN ACROSS THE WARNED AREA. RADAR INDICATED
UPWARDS OF 2 TO 4 INCHES OF RAIN HAVE ALREADY FALLEN. WHILE RAINFALL
RATES HAVE STARTED TO DIMINISH...FLASH FLOODING CONTINUES AND WATER
IS SLOWLY RECEDING.
SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
PONCA...ALLEN...MARTINSBURG...PONCA STATE PARK AND WATERBURY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.
&&
LAT...LON 4236 9685 4266 9686 4267 9672 4266 9670
4265 9669 4262 9671 4260 9671 4258 9669
4257 9666 4235 9665
$$
DUXThe office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 17, 9:53 PM CDT | Severe Thunderstorm Warning | FSD | Dakota, Dixon | 52 min |
| Jun 17, 10:41 PM CDT | Severe Thunderstorm Warning | FSD | Dakota, Dixon | 49 min |
| Jun 18, 3:14 AM CDT | Heat Advisory | FSD | Dakota, Dixon | 41 hr |
Nearby
Flash Flood Warnings in Nebraska, 2016Every flash flood warning in 2016
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.