Alert archive / Minnesota / Flash Flood Warnings in 2018

Flash Flood Warning 2, NWS Twin Cities, MN

June 9, 2018Carver County, Minnesota

NWS Twin Cities, MN issued this flash flood warning at Jun 9, 2018, 10:05 AM CDT for Carver 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: Jun 9, 2018, 10:05 AM CDT (15:05 UTC)
Expired: Jun 9, 2018, 1:00 PM CDT
In force: 3 hr
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Flood severity: None

County Carver County, MN

The radar

The Minneapolis radar (KMPX), 13 km from the middle of the area, began a volume at 15:08 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 12:00Z, 3.1 hours before the alert went out and 12 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: 395 J/kg
Mixed-layer CIN: -155 J/kg
Mixed-layer LCL: 661 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: 128 m²/s²
0-3 km storm-relative helicity: 154 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.9

Open this sounding in Storm Lab

The text

As transmitted.

991 
WGUS53 KMPX 091505
FFWMPX
MNC019-091800-
/O.NEW.KMPX.FF.W.0002.180609T1505Z-180609T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Twin Cities/Chanhassen MN
1005 AM CDT SAT JUN 9 2018

The National Weather Service in The Twin Cities has issued a

* Flash Flood Warning for...
  Southeastern Carver County in east central Minnesota...

* Until 100 PM CDT

* At 1004 AM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Up to four inches of rain have 
  already fallen. Flash flooding is expected to begin shortly.

* Some locations that will experience flooding include...
  Carver.

Additional rainfall amounts of two to three inches are possible in 
the warned area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

&&

LAT...LON 4474 9371 4479 9366 4477 9362 4475 9361
      4474 9363 4472 9362 4470 9363

$$

SPD

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 9, 6:18 AM CDT	Severe Thunderstorm Warning	MPX	Carver, Scott	27 min
Jun 9, 7:45 AM CDT	Special Weather Statement	MPX	Chippewa	30 min
Jun 9, 9:07 AM CDT	Special Weather Statement	MPX	Redwood, Yellow Medicine	68 min
Jun 9, 9:09 AM CDT	Special Weather Statement	MPX	Renville	66 min
Jun 9, 9:20 AM CDT	Special Weather Statement	MPX	Scott	55 min
Jun 9, 10:42 AM CDT	Special Weather Statement	MPX	Nicollet	48 min
Jun 9, 10:54 AM CDT	Flash Flood Watch	MPX	Blue Earth, Brown, Faribault, Freeborn, Le Sueur, Martin and 5 more	8 hr
Jun 9, 10:55 AM CDT	Special Weather Statement	MPX	Blue Earth, Waseca	65 min
Jun 9, 11:22 AM CDT	Special Weather Statement	MPX	Steele	23 min
Jun 9, 11:28 AM CDT	Special Weather Statement	MPX	Le Sueur	47 min
Jun 9, 11:33 AM CDT	Severe Thunderstorm Warning	MPX	Freeborn, Steele, Waseca	42 min
Jun 9, 12:04 PM CDT	Special Weather Statement	MPX	Scott	41 min
Jun 9, 12:16 PM CDT	Special Weather Statement	MPX	Steele	44 min
Jun 9, 1:49 PM CDT	Special Weather Statement	MPX	Faribault	26 min
Jun 9, 4:42 PM CDT	River Flood Warning	MPX	Brown	58 hr

Nearby

Flash Flood Warnings in Minnesota, 2018 Every flash flood warning in 2018

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.