Alert archive / Minnesota / Flash Flood Warnings in 2013

Flash Flood Warning 25, NWS Twin Cities, MN

July 13, 2013Dakota County, Rice County, Scott County, Minnesota

NWS Twin Cities, MN issued this flash flood warning at Jul 13, 2013, 1:28 PM CDT for Dakota County, Rice County, Scott County, Minnesota. It was in force for 12 hr. 3 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: Jul 13, 2013, 1:28 PM CDT (18:28 UTC)
Expired: Jul 14, 2013, 1:30 AM CDT
In force: 12 hr
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Flood severity: None

Counties Dakota County, MN, Rice County, MN, Scott County, MN

The radar

The Minneapolis radar (KMPX), 57 km from the middle of the area, began a volume at 18:31 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
Jul 13, 1:30 PM CDT	FLOOD	Dundas, MN	WATER FROM THE CANNON RIVER WITHIN 15 FT OF RESIDENCES ALONG THE RIVER.
Jul 13, 1:30 PM CDT	FLASH FLOOD	Northfield, MN	CANNON RIVER HITTING BASE OF WALKING BRIDGE AND GOING AROUND OVER THE ACCESS PATHS.
Jul 13, 2:45 PM CDT	FLASH FLOOD	Dundas, MN	CR 1 FROM KALB ST AND WEST STILL HAS 1 FT OF WATER FOR A 200 TO 400 FT STREACH.

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 59 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 488 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 58 m²/s²
0-3 km storm-relative helicity: 318 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

048 
WGUS53 KMPX 131828
FFWMPX
MNC037-131-139-140030-
/O.NEW.KMPX.FF.W.0025.130713T1828Z-130714T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
128 PM CDT SAT JUL 13 2013

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHEASTERN RICE COUNTY IN SOUTH CENTRAL MINNESOTA...
  SOUTHEASTERN SCOTT COUNTY IN EAST CENTRAL MINNESOTA...
  SOUTHWESTERN DAKOTA COUNTY IN EAST CENTRAL MINNESOTA...

* UNTIL 730 PM CDT

* AT 119 PM CDT...EMERGENCY MANAGEMENT REPORTED FLASH FLOODING ACROSS
  THE WARNED AREA. RAINFALL AMOUNTS FROM EARLIER THUNDERSTORMS HAVE
  RANGED FROM 4 TO LOCALLY 9 INCHES ACROSS THE WARNED AREA SINCE 6
  AM. 

  THESE RAINFALL AMOUNTS HAS CAUSED SIGNIFICANT FLOODING IN 
  NORTHFIELD...DUNDAS AND SURROUNDING AREAS. 
  SPECIFICALLY...BUSINESSES ALONG THE CANNON RIVER WILL EXPERIENCE 
  FLOODING. LOCAL OFFICIALS HAVE INDICATED THAT DUNDAS BLVD...OR 
  COUNTY ROAD 78...BETWEEN DUNDAS AND NORTHFIELD SHOULD NOT BE USED 
  UNTIL FURTHER NOTICE. BUSINESSES ON THE WEST BANK ON THE CANNON 
  RIVER IN NORTHFIELD ARE SAND BAGGING AND SHOULD MONITOR FOR 
  ADDITIONAL RISES. IN ADDITION...RESIDENCES IN DUNDAS SHOULD 
  MONITOR RISING WATER LEVELS ALONG THE CANNON RIVER. 

  OTHERWISE...NUMEROUS SMALLER STREAMS AND CREEKS IN THE WARNED AREA 
  ARE AT BANKFULL OR HIGH. ROADS AND CULVERTS HAVE BEEN REPORTED 
  WASHED OUT.  

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING
  INCLUDE...NORTHFIELD...DUNDAS

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.

DO NOT UNDERESTIMATE THE POWER OF FLOOD WATERS. ONLY A FEW INCHES OF
RAPIDLY FLOWING WATER CAN QUICKLY CARRY AWAY YOUR VEHICLE. TURN
AROUND... DONT DROWN!

&&

LAT...LON 4430 9321 4436 9335 4459 9342 4458 9303
      4429 9303

$$

JLT

2 follow-up statements

733 
WGUS73 KMPX 132114
FFSMPX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
414 PM CDT SAT JUL 13 2013

MNC037-131-139-140030-
/O.CON.KMPX.FF.W.0025.000000T0000Z-130714T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DAKOTA MN-RICE MN-SCOTT MN-
414 PM CDT SAT JUL 13 2013

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR SOUTHEASTERN SCOTT...
NORTHEASTERN RICE AND SOUTHWESTERN DAKOTA COUNTIES UNTIL 730 PM
CDT...

AT 400 PM CDT...LOCAL OFFICIALS IN THE WARNED AREA CONTINUED TO 
REPORT FLOODING...WITH SAND BAGGING OCCURRING IN THE CITY OF 
NORTHFIELD ALONG THE CANNON RIVER. THE LOCAL RIVER STAGE LEVEL ON 
THE STRAIGHT RIVER NEAR FARIBAULT CONTINUES TO RISE. THEREFORE...DUE 
TO FLOOD WATERS FLOWING FROM THE STRAIGHT RIVER CONTINUING...THE 
CANNON RIVER IN DUNDAS AND NORTHFIELD WILL SEE ADDITIONAL RISES 
THROUGH THE AFTERNOON AND EARLY EVENING. OTHER FLOOD AREAS IN THE 
WARNED AREA WILL LIKELY BEGIN TO SEE CONDITIONS IMPROVE DURING THE 
LATE AFTERNOON AND EVENING. 

PLEASE BE AWARE THAT ADDITIONAL RAINFALL IS POSSIBLE THIS EVENING 
WHICH WILL AGGRAVATE THE ALREADY FLOODED REGION. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.

&&

LAT...LON 4430 9321 4436 9335 4459 9342 4458 9303
      4429 9303

$$

JLT

411 
WGUS53 KMPX 140025
FFWMPX
MNC037-131-139-140630-
/O.EXT.KMPX.FF.W.0025.000000T0000Z-130714T0630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
725 PM CDT SAT JUL 13 2013

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  NORTHEASTERN RICE COUNTY IN SOUTH CENTRAL MINNESOTA...
  SOUTHEASTERN SCOTT COUNTY IN EAST CENTRAL MINNESOTA...
  SOUTHWESTERN DAKOTA COUNTY IN EAST CENTRAL MINNESOTA...

* UNTIL 130 AM CDT SUNDAY

* AT 715 PM CDT...LOCAL OFFICIALS IN THE WARNED AREA CONTINUED TO 
  REPORT FLOODING FROM EARLIER RAINFALL AMOUNTS OF 4 TO 9 INCHES.    
  THE LOCAL RIVER STAGE LEVEL ON THE STRAIGHT RIVER NEAR FARIBAULT 
  CONTINUES TO RISE SLOWLY...BUT NOT AS FAST AS IT DID SATURDAY
  MORNING AND AFTERNOON. THEREFORE...DUE TO FLOOD WATERS FLOWING
  FROM THE STRAIGHT RIVER CONTINUING...THE CANNON RIVER IN DUNDAS
  AND NORTHFIELD WILL SEE ADDITIONAL RISES THROUGH THE NIGHT. 
  OTHER FLOOD AREAS IN THE WARNED AREA WILL LIKELY BEGIN TO SEE 
  CONDITIONS IMPROVE DURING THE OVERNIGHT HOURS.  

  PLEASE BE AWARE THAT ADDITIONAL RAINFALL IS POSSIBLE OVERNIGHT 
  WHICH WILL AGGRAVATE THE ALREADY FLOODED REGION.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING 
  INCLUDE...NORTHFIELD...DUNDAS AND LOCAL COMMUNITIES ALONG THE 
  STRAIGHT AND CANNON RIVERS...AS WELL AS HEATH AND PRAIRIE CREEK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. DO
NOT ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND TO
ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN
WATER BEGINS RISING.

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN THE
TWIN CITIES.

&&

LAT...LON 4430 9321 4436 9335 4459 9342 4458 9303
      4429 9303

$$

JLT

The office that day

Everything else NWS Twin Cities, MN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 12, 9:47 PM CDT	Special Weather Statement	MPX	Douglas, Pope, Stevens	73 min
Jul 12, 10:22 PM CDT	Special Weather Statement	MPX	Douglas	53 min
Jul 12, 10:55 PM CDT	Special Weather Statement	MPX	Douglas, Todd	50 min
Jul 13, 3:38 AM CDT	Special Weather Statement	MPX	Anoka, Carver, Chisago, Dakota, Hennepin, Isanti and 4 more	52 min
Jul 13, 4:22 AM CDT	Areal Flood Advisory	MPX	Anoka, Carver, Dakota, Hennepin, Isanti, Ramsey and 2 more	4 hr
Jul 13, 6:35 AM CDT	Flash Flood Warning	MPX	Dakota, Hennepin, Rice, Scott	4 hr
Jul 13, 8:08 AM CDT	Flash Flood Warning	MPX	Rice	6 hr
Jul 13, 8:33 AM CDT	Flash Flood Warning	MPX	Faribault, Freeborn, Steele, Waseca	3 hr
Jul 13, 9:02 AM CDT	Flash Flood Warning	MPX	Goodhue	3 hr
Jul 13, 10:32 AM CDT	Flash Flood Warning	MPX	Dakota, Rice, Scott	3 hr
Jul 13, 1:55 PM CDT	Areal Flood Warning	MPX	Blue Earth, Dakota, Faribault, Freeborn, Goodhue, Le Sueur and 4 more	6 hr

Nearby

Flash Flood Warnings in Minnesota, 2013 Every flash flood warning in 2013

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.