Alert archive / North Dakota / Flash Flood Warnings in 2011

Flash Flood Warning 9, NWS Bismarck, ND

June 18, 2011Grant County, Morton County, North Dakota

NWS Bismarck, ND issued this flash flood warning at Jun 18, 2011, 5:26 PM MDT for Grant County, Morton County, North Dakota. 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 18, 2011, 5:26 PM MDT (23:26 UTC)
Expired: Jun 18, 2011, 8:47 PM MDT
In force: 3 hr
Issued by: NWS Bismarck, ND
Area: Storm-based polygon
Flood severity: None

Counties Grant County, ND, Morton County, ND

The radar

The Bismarck radar (KBIS), 49 km from the middle of the area, began a volume at 23:27 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

Bismarck Municip, ND (KBIS), launched 12:00Z, 11.4 hours before the alert went out and 53 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: 1532 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 82 m²/s²
0-3 km storm-relative helicity: 43 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.

089 
WGUS53 KBIS 182326
FFWBIS
NDC037-059-190530-
/O.NEW.KBIS.FF.W.0009.110618T2326Z-110619T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
626 PM CDT SAT JUN 18 2011

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CENTRAL MORTON COUNTY IN SOUTH CENTRAL NORTH DAKOTA...
  NORTH CENTRAL GRANT COUNTY IN SOUTH CENTRAL NORTH DAKOTA...

* UNTIL 1230 AM CDT/1130 PM MDT/

* AT 624 PM CDT/524 PM MDT/...DOPPLER RADAR INDICATED 3 TO 4 INCHES
  OF RAINFALL IN THE PAST HOUR OVER NORTHERN GRANT AND PORTIONS OF   
  WESTERN MORTON COUNTY. 

* FLASH FLOODING IS EXPECTED TO OCCUR OVER MAINLY RURAL AREAS OF
  CENTRAL MORTON AND NORTH CENTRAL GRANT COUNTIES...INCLUDING THE
  TOWNS OF ALMONT...JUDSON...NEW SALEM AND SWEET BRIAR LAKE.

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 4698 10102 4638 10169 4653 10182 4696 10146

$$

WETZEL

1 follow-up statement

857 
WGUS73 KBIS 190247
FFSBIS

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
947 PM CDT SAT JUN 18 2011

NDC037-059-190259-
/O.CAN.KBIS.FF.W.0009.000000T0000Z-110619T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GRANT ND-MORTON ND-
947 PM CDT SAT JUN 18 2011

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR CENTRAL MORTON AND 
NORTH CENTRAL GRANT COUNTIES HAS BEEN REPLACED BY AN AREAL FLOOD 
WARNING...

THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR CENTRAL MORTON AND 
NORTH CENTRAL GRANT COUNTIES HAS BEEN REPLACED BY AN AREAL FLOOD 
WARNING AS OVERLAND FLOODING AND RIVER AND CREEK RISES WILL CONTINUE 
INTO SUNDAY...WITH ADDITIONAL THUNDERSTORMS POSSIBLE.

LAT...LON 4698 10102 4638 10169 4653 10182 4696 10146

$$

AYD

The office that day

Everything else NWS Bismarck, ND issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 18, 4:01 PM MDT	Severe Thunderstorm Warning	BIS	Mercer, Morton, Oliver	59 min
Jun 18, 4:20 PM MDT	Severe Thunderstorm Warning	BIS	Grant, Morton	44 min
Jun 18, 4:26 PM MDT	Tornado Warning	BIS	Grant, Morton	21 min
Jun 18, 4:59 PM MDT	Flash Flood Warning	BIS	Mercer, Morton, Oliver	5 hr
Jun 18, 5:02 PM MDT	Tornado Warning	BIS	Grant, Morton	28 min
Jun 18, 5:35 PM MDT	Severe Thunderstorm Warning	BIS	Grant, Sioux	55 min
Jun 18, 5:40 PM MDT	Severe Thunderstorm Warning	BIS	Grant, Morton	65 min

Nearby

Flash Flood Warnings in North Dakota, 2011 Every flash flood warning in 2011

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.