Alert archive / Minnesota / Flash Flood Warnings in 2015

Flash Flood Warning 2, NWS Twin Cities, MN

July 5, 2015Benton County, Sherburne County, Stearns County, Minnesota

NWS Twin Cities, MN issued this flash flood warning at Jul 5, 2015, 11:28 PM CDT for Benton County, Sherburne County, Stearns County, Minnesota. It was in force for 3 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
Jul 5, 2015, 11:28 PM CDT (04:28 UTC)
Expired
Jul 6, 2015, 2:30 AM CDT
In force
3 hr
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Flood severity
None

Counties Benton County, MN, Sherburne County, MN, Stearns County, MN

The radar

The Minneapolis radar (KMPX), 101 km from the middle of the area, began a volume at 04:28 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

TimeReportWhereRemark
Jul 6, 12:20 AM CDTFLASH FLOODSt Cloud, MNMULTIPLE VEHICLES WERE REPORTED STUCK IN HIGH WATER AT THE INTERSECTION OF 33RD AVENUE AND 8TH STREET NORTH.

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, 4.5 hours before the alert went out and 100 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 2015-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1489 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 2015-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 115 square meters per square second.193958Sfc1 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
1489 J/kg
Mixed-layer CIN
-17 J/kg
Mixed-layer LCL
1240 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
115 m²/s²
0-3 km storm-relative helicity
253 m²/s²
Significant tornado parameter
0.0
Supercell composite
5.0

Open this sounding in Storm Lab

The text

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

422 
WGUS53 KMPX 060428
FFWMPX
MNC009-141-145-060730-
/O.NEW.KMPX.FF.W.0002.150706T0428Z-150706T0730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1128 PM CDT SUN JUL 5 2015

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EASTERN STEARNS COUNTY IN CENTRAL MINNESOTA... 
  NORTHWESTERN SHERBURNE COUNTY IN CENTRAL MINNESOTA... 
  SOUTHWESTERN BENTON COUNTY IN CENTRAL MINNESOTA...

* UNTIL 230 AM CDT
    
* AT 1126 PM CDT...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING 
  HEAVY RAIN...WITH RAINFALL RATES IN EXCESS OF 2 INCHES PER HOUR 
  ACROSS THE WARNED AREA. FLASH FLOODING IS EXPECTED TO BEGIN 
  SHORTLY...ESPECIALLY IN THE CITY OF ST. CLOUD.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  ST. CLOUD...SARTELL...SAUK RAPIDS...WAITE PARK...ST. JOSEPH...
  COLLEGEVILLE...ALBANY...ROCKVILLE...AVON...FARMING...AND ST WENDEL.

THIS INCLUDES INTERSTATE 94 IN MINNESOTA BETWEEN MILE MARKERS 145 AND
171.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

&&

LAT...LON 4570 9406 4548 9403 4548 9462 4568 9462

$$
1 follow-up statement
910 
WGUS73 KMPX 060638
FFSMPX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
138 AM CDT MON JUL 6 2015

MNC009-141-145-060730-
/O.CON.KMPX.FF.W.0002.000000T0000Z-150706T0730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
STEARNS MN-SHERBURNE MN-BENTON MN-
138 AM CDT MON JUL 6 2015

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 230 AM CDT FOR
NORTHEASTERN STEARNS...NORTHWESTERN SHERBURNE AND SOUTH CENTRAL
BENTON COUNTIES...

AT 132 AM CDT...RAIN HAS NOW MOSTLY ENDED...BUT ONE AND A HALF TO TWO
AND HALF INCHES OF RAIN FELL OVER THE COURSE OF TWO HOURS...RESULTING IN
SOME STREET FLOODING IN ST. CLOUD. THOUGH ONLY MINIMAL ADDITIONAL RAINFALL 
AMOUNTS ARE EXPECTED...HIGH WATER WILL CONTINUE TO RECEDE IN THE WAKE OF 
THE RAIN THAT HAS FALLEN.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
ST. CLOUD...SARTELL...SAUK RAPIDS...WAITE PARK...ST. JOSEPH...
COLLEGEVILLE...ALBANY...ROCKVILLE...AVON...FARMING...AND ST WENDEL.

THIS INCLUDES INTERSTATE 94 IN MINNESOTA BETWEEN MILE MARKERS 145 AND
171.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

&&

LAT...LON 4570 9406 4548 9403 4548 9462 4568 9462

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 5, 7:30 PM CDTSevere Thunderstorm WarningMPXPope, Stevens45 min
Jul 5, 8:41 PM CDTSpecial Weather StatementMPXStevens2 hr
Jul 5, 8:54 PM CDTFlash Flood WatchMPXAnoka, Benton, Blue Earth, Brown, Carver, Chippewa and 29 more16 hr
Jul 5, 9:11 PM CDTSpecial Weather StatementMPXTodd64 min
Jul 5, 9:38 PM CDTSpecial Weather StatementMPXSwift67 min
Jul 5, 10:15 PM CDTSpecial Weather StatementMPXChippewa, Lac qui Parle75 min
Jul 5, 11:03 PM CDTSevere Thunderstorm WarningMPXBenton, Sherburne, Stearns42 min
Jul 5, 11:48 PM CDTSpecial Weather StatementMPXChippewa, Yellow Medicine117 min
Jul 6, 2:14 AM CDTSpecial Weather StatementMPXRamsey, Washington2 hr
Jul 6, 2:40 AM CDTSpecial Weather StatementMPXBrown, Nicollet20 min
Jul 6, 3:13 AM CDTFlash Flood WarningMPXWashington2 hr

Nearby

Flash Flood Warnings in Minnesota, 2015Every 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.