Alert archive / Wisconsin / Flash Flood Warnings in 2019
Flash Flood Warning 4, NWS Twin Cities, MN
NWS Twin Cities, MN issued this flash flood warning at Apr 17, 2019, 1:27 PM CDT for Pierce County, Saint Croix County, Wisconsin. It was in force for 3 hr. 5 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Apr 17, 2019, 1:27 PM CDT (18:27 UTC)
- Expired
- Apr 17, 2019, 4:30 PM CDT
- In force
- 3 hr
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Flood severity
- None
Counties Pierce County, WI, Saint Croix County, WI
The radar
The Minneapolis radar (KMPX), 79 km from the middle of the area, began a volume at 18:28 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 17, 1:50 PM CDT | FLASH FLOOD | 4 Ssw Roberts, WI | FLOWING WATER WASHED OUT DRIVEWAY, DAMAGED ROAD. |
| Apr 17, 2:00 PM CDT | HEAVY RAIN 2.2 | 1 Wnw Roberts, WI | RAIN ESTIMATED BY GAUGE FROM 9AM. |
| Apr 17, 2:10 PM CDT | FLOOD | 4 Ssw Roberts, WI | KNEE DEEP STANDING WATER OVER VALLEY VIEW ROAD. |
| Apr 17, 3:45 PM CDT | HEAVY RAIN 4.33 | 1 Ssw River Falls, WI | |
| Apr 17, 3:45 PM CDT | HEAVY RAIN 4.36 | River Falls, WI |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 6.5 hours before the alert went out and 81 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
- 1725 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 135 m²/s²
- 0-3 km storm-relative helicity
- 187 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
651
WGUS53 KMPX 171827
FFWMPX
WIC093-109-172130-
/O.NEW.KMPX.FF.W.0004.190417T1827Z-190417T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Twin Cities/Chanhassen MN
127 PM CDT WED APR 17 2019
The National Weather Service in The Twin Cities has issued a
* Flash Flood Warning for...
North central Pierce County in west central Wisconsin...
Southwestern St. Croix County in west central Wisconsin...
* Until 430 PM CDT.
* At 125 PM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Three to four inches of rain
have already fallen, with a spotter report of almost 4 inches of
rain in River Falls. Additional rainfall amounts of 1 to two
inches are possible Flash flooding is expected to begin shortly.
* Some locations that will experience flooding include...
River Falls, Hammond, Baldwin, Roberts and Beldenville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.
A Flash Flood Warning means that flooding is imminent or occurring.
If you are in the warned area move to higher ground immediately.
Residents living along streams and creeks should take immediate
precautions to protect life and property.
&&
LAT...LON 4474 9254 4487 9277 4488 9277 4507 9251
4492 9229
$$
ETA1 follow-up statement
671
WGUS73 KMPX 171924
FFSMPX
Flash Flood Statement
National Weather Service Twin Cities/Chanhassen MN
224 PM CDT WED APR 17 2019
WIC093-109-172130-
/O.CON.KMPX.FF.W.0004.000000T0000Z-190417T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Pierce WI-St. Croix WI-
224 PM CDT WED APR 17 2019
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 430 PM CDT FOR
NORTH CENTRAL PIERCE AND SOUTHWESTERN ST. CROIX COUNTIES...
At 219 PM CDT, Doppler radar and automated rain gauges indicated
three to four inches of rain has fallen across the warned area.
Additionally, spotters have reported flooded roads south of Roberts,
with water two to three feet deep. Impacts from flash flooding are
expected to continue through 430 PM CDT.
Some locations that will experience flooding include...
River Falls, Hammond, Baldwin, Roberts and Beldenville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.
A Flash Flood Warning means that flooding is imminent or occurring.
If you are in the warned area move to higher ground immediately.
Residents living along streams and creeks should take immediate
precautions to protect life and property.
&&
LAT...LON 4474 9254 4487 9277 4488 9277 4507 9251
4492 9229
$$
ETAThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 17, 11:26 AM CDT | Special Weather Statement | MPX | Pierce | 49 min |
| Apr 17, 12:00 PM CDT | Flash Flood Warning | MPX | Pierce | 3 hr |
Nearby
Flash Flood Warnings in Wisconsin, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.