Alert archive / North Dakota / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 145, NWS Bismarck, ND

August 7, 2009Bowman County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Aug 7, 2009, 9:57 PM MDT for Bowman County, North Dakota. It was in force for 63 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 7, 2009, 9:57 PM MDT (03:57 UTC)
Expired: Aug 7, 2009, 11:00 PM MDT
In force: 63 min
Issued by: NWS Bismarck, ND
Area: Storm-based polygon

County Bowman County, ND

The radar

The Bismarck radar (KBIS), 224 km from the middle of the area, began a volume at 03:58 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 forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Bismarck, ND wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 7, 7:08 PM MDT, 2 hours 49 minutes earlier.

Area forecast discussion, Aug 7, 7:08 PM MDT, 2 hours 49 minutes before

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In the hours before

Special weather statement, Aug 7, 9:10 PM MDT, 47 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
1010 PM CDT FRI AUG 7 2009

NDZ031-040-043-080415-
BOWMAN-GOLDEN VALLEY-SLOPE-
910 PM MDT FRI AUG 7 2009

...SPECIAL WEATHER STATEMENT...

AT 1006 PM CDT...906 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR
INDICATED STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 45 MILES
WEST OF BOWMAN TO 47 MILES SOUTHWEST OF BOWMAN...MOVING NORTHEAST AT
25 MPH.

UP TO ONE HALF INCH SIZE HAIL...WINDS GREATER THAN 40 MPH...FREQUENT
CLOUD TO GROUND LIGHTNING AND HEAVY DOWNPOURS ARE POSSIBLE WITH
THESE STORMS.

* THUNDERSTORMS WILL BE NEAR...
  MARMARTH BY 955 PM MDT...
  RHAME BY 1015 PM MDT...

SEEK SHELTER IN A STURDY STRUCTURE UNTIL THESE STORMS HAVE PASSED.
IF YOU HEAR THUNDER OR SEE LIGHTNING...REMAIN INDOORS.

PJA

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 7, 10:42 PM MDT	Areal Flood Advisory	BIS	Adams, Bowman	4 hr
Aug 7, 10:57 PM MDT	Severe Thunderstorm Warning	BIS	Adams, Bowman	48 min
Aug 7, 11:50 PM MDT	Areal Flood Advisory	BIS	Adams	3 hr

Nearby

Severe Thunderstorm Warnings in North Dakota, 2009 Every severe thunderstorm warning in 2009

Sources

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