Alert archive / Minnesota / Flash Flood Warnings in 2005

Flash Flood Warning 15, NWS Twin Cities, MN

August 26, 2005Swift County, Minnesota

NWS Twin Cities, MN issued this flash flood warning at Aug 26, 2005, 12:25 AM CDT for Swift County, Minnesota. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 26, 2005, 12:25 AM CDT (05:25 UTC)
Expired
Aug 26, 2005, 3:30 AM CDT
In force
3 hr
Issued by
NWS Twin Cities, MN
Area
Counties, with a storm outline in the text

County Swift County, MN

The radar

The Minneapolis radar (KMPX), 170 km from the middle of the area, began a volume at 05:27 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.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 5.4 hours before the alert went out and 167 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-pSkew-T log-p diagram, Minneapolis, MN at 00:00Z on 2005-08-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1374 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 00:00Z on 2005-08-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 35 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
1374 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
766 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
35 m²/s²
0-3 km storm-relative helicity
53 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.

000 
WGUS53 KMPX 260527
FFWMPX
MNC151-260830-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1225 AM CDT FRI AUG 26 2005

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SWIFT COUNTY IN WEST CENTRAL MINNESOTA

* UNTIL 330 AM CDT

* AT 1225 AM CDT...RADAR DETECTED THUNDERSTORMS PRODUCING VERY HEAVY 
  RAIN...UP TO 2 INCHES IN THE LAST 3 HOURS...ACROSS THE NORTHERN    
  PART OF THE COUNTY.  THE STORMS PRODUCING THE HEAVIEST RAIN...
  NEAR BENSON...CLONTARF AND DE GRAF. THESE STORMS WERE NEARLY       
  STATIONARY.

  EXPECT ADDITIONAL THUNDERSTORMS TO REDEVELOP AND PASS OVER THE     
  WARNED AREA...RESULTING IN EXCESSIVE RAINFALL.

* SOME LOCATIONS THAT MAY BE AFFECTED INCLUDE...BENSON...CLONTARF...
  DANVERS...DE GRAFF...MURDOCK AND BIG BEND CITY.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IMMINENT.
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.

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

LAT...LON 4517 9596 4515 9526 4540 9526 4539 9580

$$

DWE
1 follow-up statement
000 
WGUS73 KMPX 260707
FFSMPX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
203 AM CDT FRI AUG 26 2005

MNC151-260830-
SWIFT MN-
203 AM CDT FRI AUG 26 2005

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 330 AM CDT FOR SWIFT
COUNTY...

AT 203 AM CDT...NATIONAL WEATHER SERVICE RADAR DETECTED THUNDERSTORMS
PRODUCING VERY HEAVY RAIN LOCATED NEAR BENSON...BIG BEND CITY...MURDOCK
AND KERKHOVEN. THE STORMS PRODUCING THE VERY HEAVY RAINFALL WERE 
NEARLY STATIONARY...AND OTHER STORMS WERE MOVING INTO THE COUNTY 
FROM EASTERN SOUTH DAKOTA.

DOPPLER RADAR ESTIMATES FROM3 TO 4 INCHES OF RAIN HAVE FALLEN OVER 
THE NORTHERN PORTION OF THE COUNTY.  LAW ENFORCEMENT OFFICIALS 
REPORT SOME FLOODING ALONG ROADS NEAR SWIFT FALLS...ALONG THE EAST 
BRANCH OF THE CHIPPEWA RIVER.  EXPECT ADDITIONAL THUNDERSTORMS TO 
REDEVELOP AND PASS OVER THE WARNED AREA...RESULTING IN EXCESSIVE 
RAINFALL.

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

LAT...LON 4517 9596 4515 9526 4540 9526 4539 9580

$$
DWE

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 25, 7:56 PM CDTSevere Thunderstorm WarningMPXDouglas49 min
Aug 25, 8:23 PM CDTSevere Thunderstorm WarningMPXTodd52 min
Aug 25, 8:42 PM CDTSevere Thunderstorm WarningMPXDouglas63 min
Aug 25, 10:12 PM CDTFlash Flood WarningMPXDouglas2 hr
Aug 25, 10:22 PM CDTSevere Thunderstorm WarningMPXPope38 min
Aug 25, 10:41 PM CDTFlash Flood WarningMPXPope3 hr
Aug 25, 10:43 PM CDTSevere Thunderstorm WarningMPXStearns52 min
Aug 26, 12:44 AM CDTSevere Thunderstorm WarningMPXStearns61 min
Aug 26, 1:30 AM CDTSevere Thunderstorm WarningMPXMeeker60 min
Aug 26, 1:44 AM CDTSevere Thunderstorm WarningMPXStearns, Wright61 min
Aug 26, 1:53 AM CDTFlash Flood WarningMPXKandiyohi3 hr
Aug 26, 3:00 AM CDTFlash Flood WarningMPXStearns3 hr
Aug 26, 3:09 AM CDTFlash Flood WarningMPXChippewa3 hr
Aug 26, 3:17 AM CDTFlash Flood WarningMPXSwift3 hr
Aug 26, 4:50 AM CDTFlash Flood WarningMPXKandiyohi3 hr

Nearby

Flash Flood Warnings in Minnesota, 2005Every flash flood warning in 2005

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.