Alert archive / Wisconsin / Flash Flood Warnings in 2011
Flash Flood Warning 1, NWS Twin Cities, MN
NWS Twin Cities, MN issued this flash flood warning at Jun 18, 2011, 6:33 PM CDT for Pepin County, Pierce County, Wisconsin. It was in force for 6 hr. 1 report 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
- Jun 18, 2011, 6:33 PM CDT (23:33 UTC)
- Expired
- Jun 19, 2011, 12:30 AM CDT
- In force
- 6 hr
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Flood severity
- None
Counties Pepin County, WI, Pierce County, WI
The radar
The La Crosse radar (KARX), 111 km from the middle of the area, began a volume at 23:33 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 |
|---|---|---|---|
| Jun 18, 6:45 PM CDT | HEAVY RAIN 1.51 | 4 Nw Arkansaw, WI | RAINFALL OCCURRED IN JUST 50 MINUTES. |
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, 11.6 hours before the alert went out and 118 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
- 1215 J/kg
- Mixed-layer CIN
- -43 J/kg
- Mixed-layer LCL
- 600 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 59 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
394
WGUS53 KMPX 182333
FFWMPX
WIC091-093-190530-
/O.NEW.KMPX.FF.W.0001.110618T2333Z-110619T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
633 PM CDT SAT JUN 18 2011
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTHEASTERN PIERCE COUNTY IN WEST CENTRAL WISCONSIN...
WESTERN PEPIN COUNTY IN WEST CENTRAL WISCONSIN...
* UNTIL 1230 AM CDT
* AT 627 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SLOW MOVING THUNDERSTORMS...AS WELL AS ADDITIONAL DEVELOPMENT OVER
SOUTHEAST MINNESOTA MOVING NORTHEAST. RADAR DATA SUGGESTS RAINFALL
AMOUNTS OF 2 TO 3 INCHES HAS ALREADY OCCURRED IN AREAS BETWEEN
MAIDEN ROCK AND PEPIN. AN ADDITIONAL ONE OR TWO INCHES OF RAINFALL
IS POSSIBLE IN THESE AREAS THROUGH 8 PM.
* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
ARKANSAW...PEPIN...PLUM CITY...PORCUPINE AND STOCKHOLM.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.
&&
LAT...LON 4442 9211 4447 9227 4449 9230 4469 9224
4468 9200
$$
JLT/JPR2 follow-up statements
954
WGUS73 KMPX 190218
FFSMPX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
918 PM CDT SAT JUN 18 2011
WIC091-093-190530-
/O.CON.KMPX.FF.W.0001.000000T0000Z-110619T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PIERCE WI-PEPIN WI-
918 PM CDT SAT JUN 18 2011
...FLASH FLOOD WARNING REMAINS IN EFFECT FOR WESTERN PEPIN AND
SOUTHEASTERN PIERCE COUNTIES UNTIL 1230 AM CDT...
AT 913 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED
THAT HEAVIEST RAIN HAS PUSHED OFF TO THE EAST...BUT ADDITIONAL
SHOWERS AND THUNDERSTORMS WERE DEVELOPING OVER SOUTHEAST MINNESOTA.
SOME OF THIS ACTIVITY COULD MOVE INTO THE AREA. IF THIS ACTIVITY
DOES NOT CONTINUE TO INCREASE...THEN THE WARNING WILL BE CANCELLED
EARLY.
RUNOFF FROM ADDITIONAL RAINFALL COULD CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
ARKANSAW...PEPIN...PLUM CITY...PORCUPINE AND STOCKHOLM.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A FLASH FLOOD WARNING MEANS THAT FLASH FLOODING IS IMMINENT OR
OCCURRING. IF YOU ARE IN THE WARNING AREA...MOVE TO HIGHER GROUND
IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE
IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO
CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.
&&
LAT...LON 4442 9211 4447 9227 4449 9230 4469 9224
4468 9200
$$554
WGUS73 KMPX 190527
FFSMPX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1227 AM CDT SUN JUN 19 2011
WIC091-093-190541-
/O.EXP.KMPX.FF.W.0001.000000T0000Z-110619T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PIERCE WI-PEPIN WI-
1227 AM CDT SUN JUN 19 2011
...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR WESTERN PEPIN AND
SOUTHEASTERN PIERCE COUNTIES WILL BE ALLOWED TO EXPIRE AT 1230 AM
CDT...
EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA.
IF FLOODING HAS BEEN OBSERVED...PLEASE REPORT IT TO YOUR LOCAL LAW
ENFORCEMENT AGENCY.
LAT...LON 4442 9211 4447 9227 4449 9230 4469 9224
4468 9200
$$The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 18, 11:58 AM CDT | Flood Watch | MPX | Barron, Chippewa, Dunn, Eau Claire, Pepin, Pierce and 3 more | 20 hr |
| Jun 18, 3:46 PM CDT | Severe Thunderstorm Warning | MPX | Pierce | 44 min |
| Jun 18, 4:28 PM CDT | Severe Thunderstorm Warning | MPX | Pierce | 47 min |
| Jun 18, 5:22 PM CDT | Severe Thunderstorm Warning | MPX | Pepin | 53 min |
Nearby
Flash Flood Warnings in Wisconsin, 2011Every flash flood warning in 2011
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.