Alert archive / Minnesota / Flash Flood Warnings in 2012
Flash Flood Warning 7, NWS Twin Cities, MN
NWS Twin Cities, MN issued this flash flood warning at Jun 7, 2012, 4:17 AM CDT for Yellow Medicine County, Minnesota. It was in force for 4 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 7, 2012, 4:17 AM CDT (09:17 UTC)
- Expired
- Jun 7, 2012, 8:30 AM CDT
- In force
- 4 hr
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Flood severity
- None
County Yellow Medicine County, MN
The radar
The Sioux Falls radar (KFSD), 150 km from the middle of the area, began a volume at 09:19 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 7, 7:05 AM CDT | FLASH FLOOD | Hanley Falls, MN | WATER FLOWING OVER COUNTY ROAD 18 EAST OF HANLEY FALLS AROUND 705AM DUE TO OVERSPILL FROM DITCHES. POSTAL CUSTOMERS REPORTING 5 INCHES OF RAIN IN AREA. |
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 00:00Z, 9.3 hours before the alert went out and 158 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
- 14 J/kg
- Mixed-layer CIN
- -20 J/kg
- Mixed-layer LCL
- 2258 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 15 m²/s²
- 0-3 km storm-relative helicity
- 112 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
379
WGUS53 KMPX 070917
FFWMPX
MNC173-071330-
/O.NEW.KMPX.FF.W.0007.120607T0917Z-120607T1330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
417 AM CDT THU JUN 7 2012
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTHEASTERN YELLOW MEDICINE COUNTY IN WEST CENTRAL MINNESOTA...
* UNTIL 830 AM CDT
* AT 415 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS TRAINING ACROSS EASTERN YELLOW MEDICINE COUNTY.
RADAR SHOWS THAT 2 TO 3 INCHES OF RAIN MAY HAVE FALLEN ACROSS THIS
AREA SINCE AROUDN 2 AM. ADDTIONAL HEAVY RAINS ARE LIKELY AT LEAST
THROUGH 7 AM.
* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
HANLEY FALLS AND WOOD LAKE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...
COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND
OTHER LOW LYING AREAS ARE SUBJECT TO FLOODING.
&&
LAT...LON 4479 9554 4455 9537 4454 9555 4455 9559
4462 9561 4462 9570 4475 9573
$$
BAPThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 7, 3:00 AM CDT | Special Weather Statement | MPX | Redwood | 45 min |
| Jun 7, 3:37 AM CDT | Special Weather Statement | MPX | Chippewa | 38 min |
| Jun 7, 4:03 AM CDT | Areal Flood Advisory | MPX | Chippewa, Lac qui Parle, Redwood, Stevens, Swift, Yellow Medicine | 4 hr |
Nearby
Flash Flood Warnings in Minnesota, 2012Every flash flood warning in 2012
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.