Alert archive / Minnesota / Flash Flood Warnings in 2015

Flash Flood Warning 6, NWS Twin Cities, MN

July 24, 20156 counties in Minnesota

NWS Twin Cities, MN issued this flash flood warning at Jul 24, 2015, 4:36 AM CDT for 6 counties in Minnesota. It was in force for 6 hr. 10 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 24, 2015, 4:36 AM CDT (09:36 UTC)
Expired: Jul 24, 2015, 10:30 AM CDT
In force: 6 hr
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Flood severity: None

Counties Kandiyohi County, MN, Meeker County, MN, Pope County, MN, Stearns County, MN, Swift County, MN, Wright County, MN

The radar

The Minneapolis radar (KMPX), 121 km from the middle of the area, began a volume at 09:38 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 24, 6:00 AM CDT	HEAVY RAIN 3.45	Paynesville, MN	AWOS AT PAYNESVILLE AIRPORT REPORTED 3.45 IN PAST 6 HOURS.
Jul 24, 6:00 AM CDT	HEAVY RAIN 4.07	French Lake, MN	AUTOMATED CWOP RAIN GAUGE REPORTED 4.07 OF PRECIP IN PAST 6 HOURS.
Jul 24, 6:14 AM CDT	HEAVY RAIN 3.13	5 Nw Forest City, MN	3.13 OF RAINFALL REPORTED BY AUTOMATED RAIN GAUGE ALONG NORTH FORK OF CROW RIVER NEAR MANANNAH IN PAST 6 HOURS.
Jul 24, 6:20 AM CDT	HEAVY RAIN 3.25	Dassel, MN	REPORT RELAYED BY WCCO TV
Jul 24, 7:00 AM CDT	HEAVY RAIN 3.24	3 Nne Dassel, MN
Jul 24, 7:00 AM CDT	HEAVY RAIN 3.48	Regal, MN
Jul 24, 8:00 AM CDT	HEAVY RAIN 3.14	5 Nw Forest City, MN	REPORTED AT MANANNAH RIVER GAUGE
Jul 24, 8:00 AM CDT	HEAVY RAIN 3.57	Paynesville, MN
Jul 24, 8:00 AM CDT	HEAVY RAIN 4.24	French Lake, MN
Jul 24, 8:50 AM CDT	HEAVY RAIN 3.4	3 Wsw Eden Valley, MN

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, 9.6 hours before the alert went out and 119 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: 1530 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: 1 m²/s²
0-3 km storm-relative helicity: 83 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.

126 
WGUS53 KMPX 240936
FFWMPX
MNC067-093-121-145-151-171-241530-
/O.NEW.KMPX.FF.W.0006.150724T0936Z-150724T1530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
436 AM CDT FRI JUL 24 2015

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN STEARNS COUNTY IN CENTRAL MINNESOTA...
  SOUTHEASTERN POPE COUNTY IN WEST CENTRAL MINNESOTA...
  NORTHERN MEEKER COUNTY IN CENTRAL MINNESOTA...
  WESTERN WRIGHT COUNTY IN CENTRAL MINNESOTA...
  NORTHERN KANDIYOHI COUNTY IN CENTRAL MINNESOTA...
  NORTHEASTERN SWIFT COUNTY IN WEST CENTRAL MINNESOTA...

* UNTIL 1030 AM CDT
    
* AT 434 AM CDT...DOPPLER RADAR AND AUTOMATED RAIN GAUGES 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. SEVERAL RAIN GAUGES IN THE WARNED AREA 
  HAVE RECEIVED BETWEEN 2.5 AND 3.5 INCHES OF RAIN SINCE 1 AM.  

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  LITCHFIELD...COLD SPRING...ANNANDALE...MONTROSE...COKATO...
  PAYNESVILLE...MAPLE LAKE...HOWARD LAKE...DASSEL...RICHMOND...
  STARBUCK AND NEW LONDON.

ADDITIONAL RAINFALL AMOUNTS OF ONE TO TWO INCHES OR MORE ARE 
POSSIBLE IN THE WARNED AREA.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 U.S. HIGHWAY 12 BETWEEN MILE MARKERS 94 AND 129.
 U.S. HIGHWAY 8 IN MINNESOTA NEAR MILE MARKER 6.
 U.S. HIGHWAY 71 BETWEEN MILE MARKERS 133 AND 156.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 4565 9559 4553 9468 4530 9391 4498 9398
      4539 9555

$$

JLT

1 follow-up statement

716 
WGUS73 KMPX 241244
FFSMPX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
744 AM CDT FRI JUL 24 2015

MNC067-093-121-145-151-171-241254-
/O.CAN.KMPX.FF.W.0006.000000T0000Z-150724T1530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
STEARNS MN-POPE MN-MEEKER MN-WRIGHT MN-KANDIYOHI MN-SWIFT MN-
744 AM CDT FRI JUL 24 2015

...THE FLASH FLOOD WARNING FOR SOUTHERN STEARNS...SOUTHEASTERN
POPE...NORTHERN MEEKER...WESTERN WRIGHT...NORTHERN KANDIYOHI AND
NORTHEASTERN SWIFT COUNTIES IS CANCELLED...

THE HEAVY RAIN HAS ENDED...AND FLOODING IS NO LONGER EXPECTED TO POSE
A THREAT.

LAT...LON 4565 9559 4553 9468 4530 9391 4498 9398
      4539 9555

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 23, 11:27 PM CDT	Special Weather Statement	MPX	Douglas, Pope	48 min
Jul 24, 12:11 AM CDT	Special Weather Statement	MPX	Meeker, Stearns, Todd	49 min
Jul 24, 1:00 AM CDT	Special Weather Statement	MPX	Benton, Meeker, Stearns, Wright	60 min
Jul 24, 1:30 AM CDT	Severe Thunderstorm Warning	MPX	Carver, McLeod, Wright	45 min
Jul 24, 1:39 AM CDT	Special Weather Statement	MPX	Martin, Watonwan	36 min
Jul 24, 2:11 AM CDT	Special Weather Statement	MPX	Morrison, Stearns, Todd	49 min
Jul 24, 2:25 AM CDT	Severe Thunderstorm Warning	MPX	Pope, Stevens	35 min
Jul 24, 3:00 AM CDT	Special Weather Statement	MPX	Freeborn, Goodhue, Rice, Steele	60 min
Jul 24, 3:05 AM CDT	Special Weather Statement	MPX	Meeker, Wright	55 min
Jul 24, 3:07 AM CDT	Special Weather Statement	MPX	Meeker, Wright	53 min
Jul 24, 3:37 AM CDT	Special Weather Statement	MPX	Meeker, Pope, Stearns	3 hr
Jul 24, 3:54 AM CDT	Special Weather Statement	MPX	Hennepin, Wright	66 min
Jul 24, 4:04 AM CDT	Special Weather Statement	MPX	Le Sueur, Waseca	41 min
Jul 24, 4:18 AM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Waseca	22 min
Jul 24, 4:32 AM CDT	Special Weather Statement	MPX	Carver, Scott	58 min
Jul 24, 5:18 AM CDT	Special Weather Statement	MPX	Le Sueur	57 min
Jul 24, 5:51 AM CDT	Special Weather Statement	MPX	Waseca	54 min
Jul 24, 6:37 AM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Faribault, Freeborn, Steele, Waseca	53 min
Jul 24, 6:54 AM CDT	Tornado Warning	MPX	Freeborn, Steele	21 min
Jul 24, 7:11 AM CDT	Severe Thunderstorm Warning	MPX	Faribault, Freeborn	49 min
Jul 24, 7:32 AM CDT	Special Weather Statement	MPX	Freeborn	58 min
Jul 24, 4:51 PM CDT	Special Weather Statement	MPX	Mille Lacs	24 min
Jul 24, 5:18 PM CDT	Special Weather Statement	MPX	Kanabec	57 min

Nearby

Flash Flood Warnings in Minnesota, 2015 Every flash flood warning in 2015

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.