Alert archive / Minnesota / Special Weather Statements in 2019

Special Weather Statement, NWS Grand Forks, ND

August 6, 2019Pennington County, Minnesota

NWS Grand Forks, ND issued this special weather statement at Aug 6, 2019, 6:20 PM CDT for Pennington County, Minnesota. It was in force for 25 min. 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 6, 2019, 6:20 PM CDT (23:20 UTC)
Expired
Aug 6, 2019, 6:45 PM CDT
In force
25 min
Issued by
NWS Grand Forks, ND

County Pennington County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 146 km from the middle of the area, began a volume at 23:21 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

International Fa, MN (KINL), launched 12:00Z, 11.3 hours before the alert went out and 176 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, International Fa, MN at 12:00Z on 2019-08-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, International Fa, MN at 12:00Z on 2019-08-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 68 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1630 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
68 m²/s²
0-3 km storm-relative helicity
107 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

783 
WWUS83 KFGF 062320
SPSFGF

Special Weather Statement
National Weather Service Grand Forks ND
620 PM CDT Tue Aug 6 2019
 
MNZ008-009-013-062345-
East Marshall MN-North Beltrami MN-Pennington MN-
620 PM CDT Tue Aug 6 2019

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN MARSHALL...WEST
CENTRAL BELTRAMI AND NORTHEASTERN PENNINGTON COUNTIES UNTIL 645 PM
CDT...

At 619 PM CDT, Doppler radar was tracking a strong thunderstorm over
Espelie, or 24 miles east of Thief River Falls, moving southeast at
30 mph.

Nickel size hail and wind gusts up to 50 mph will be possible with
this storm.

This strong thunderstorm will be near...
  Jelle around 640 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 4802 9543 4802 9558 4800 9558 4800 9563
      4817 9582 4825 9579 4833 9567 4821 9526
TIME...MOT...LOC 2319Z 299DEG 25KT 4821 9567 

$$

BP

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 6, 5:25 PM CDTSpecial Weather StatementFGFRoseau20 min
Aug 6, 6:01 PM CDTSpecial Weather StatementFGFPennington14 min
Aug 6, 6:37 PM CDTSpecial Weather StatementFGFBeltrami23 min
Aug 6, 6:48 PM CDTSpecial Weather StatementFGFPennington12 min
Aug 6, 6:59 PM CDTSpecial Weather StatementFGFBeltrami61 min
Aug 6, 6:42 PM CDTSpecial Weather StatementFGFGrand Forks18 min
Aug 6, 6:46 PM CDTSpecial Weather StatementFGFBenson29 min

Nearby

Special Weather Statements in Minnesota, 2019Every special weather statement in 2019

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.