Alert archive / North Dakota / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 182, NWS Grand Forks, ND

August 22, 2016Eddy County, Griggs County, Nelson County, North Dakota

NWS Grand Forks, ND issued this severe thunderstorm warning at Aug 22, 2016, 11:31 PM CDT for Eddy County, Griggs County, Nelson County, North Dakota. It was in force for 59 min. 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: Aug 22, 2016, 11:31 PM CDT (04:31 UTC)
Expired: Aug 23, 2016, 12:30 AM CDT
In force: 59 min
Issued by: NWS Grand Forks, ND
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Eddy County, ND, Griggs County, ND, Nelson County, ND

What was reported inside it

Time	Report	Where	Remark
Aug 22, 11:45 PM CDT	HAIL 1	12 E Brantford, ND	A FEW DIME TO QUARTER SIZED HAIL AND VERY HEAVY RAINS.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 4.5 hours before the alert went out and 198 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: 2913 J/kg
Mixed-layer CIN: -187 J/kg
Mixed-layer LCL: 2137 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 132 m²/s²
0-3 km storm-relative helicity: 150 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.9

Open this sounding in Storm Lab

The text

As transmitted.

504 
WUUS53 KFGF 230431
SVRFGF
NDC027-039-063-230530-
/O.NEW.KFGF.SV.W.0182.160823T0431Z-160823T0530Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
1131 PM CDT MON AUG 22 2016

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN EDDY COUNTY IN NORTHEASTERN NORTH DAKOTA...
  SOUTHWESTERN NELSON COUNTY IN NORTHEASTERN NORTH DAKOTA...
  NORTHWESTERN GRIGGS COUNTY IN SOUTHEASTERN NORTH DAKOTA...

* UNTIL 1230 AM CDT

* AT 1130 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR GRACE
  CITY... OR 38 MILES SOUTH OF DEVILS LAKE...MOVING NORTHEAST AT 30
  MPH.

  HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE 
           TO ROOFS...SIDING...AND TREES. 

* THIS SEVERE THUNDERSTORM WILL BE NEAR...
  RED WILLOW LAKE AROUND 1200 AM CDT. 
  TOLNA AROUND 1215 AM CDT. 
  PEKIN AROUND 1220 AM CDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4785 9854 4785 9853 4786 9852 4791 9846
      4767 9807 4751 9850 4759 9850 4759 9887
TIME...MOT...LOC 0430Z 225DEG 25KT 4757 9872 

HAIL...1.00IN
WIND...60MPH
 
$$

JAM

3 follow-up statements

041 
WWUS53 KFGF 230447
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
1147 PM CDT MON AUG 22 2016

NDC027-039-063-230530-
/O.CON.KFGF.SV.W.0182.000000T0000Z-160823T0530Z/
EDDY ND-NELSON ND-GRIGGS ND-
1147 PM CDT MON AUG 22 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1230 AM CDT
FOR SOUTHEASTERN EDDY...SOUTHWESTERN NELSON AND NORTHWESTERN GRIGGS
COUNTIES...

AT 1146 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED OVER MCHENRY...OR
37 MILES SOUTH OF DEVILS LAKE...MOVING NORTHEAST AT 25 MPH.

HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO 
         ROOFS...SIDING...AND TREES. 

THIS SEVERE STORM WILL BE NEAR...
  MOSE AROUND 1200 AM CDT. 
  RED WILLOW LAKE AROUND 1210 AM CDT. 
  TOLNA AROUND 1225 AM CDT. 
  PEKIN AROUND 1230 AM CDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4785 9854 4785 9853 4786 9852 4791 9846
      4767 9807 4751 9850 4759 9850 4759 9887
TIME...MOT...LOC 0446Z 230DEG 21KT 4760 9862 

HAIL...1.00IN
WIND...60MPH
 
$$

JAM

241 
WWUS53 KFGF 230506
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
1206 AM CDT TUE AUG 23 2016

NDC027-039-063-230530-
/O.CON.KFGF.SV.W.0182.000000T0000Z-160823T0530Z/
EDDY ND-NELSON ND-GRIGGS ND-
1206 AM CDT TUE AUG 23 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1230 AM CDT
FOR EAST CENTRAL EDDY...SOUTHWESTERN NELSON AND NORTHWESTERN GRIGGS
COUNTIES...

AT 1205 AM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR RED WILLOW
LAKE...OR 34 MILES SOUTHEAST OF DEVILS LAKE...MOVING NORTHEAST AT 30
MPH.

HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO 
         ROOFS...SIDING...AND TREES. 

THIS SEVERE STORM WILL BE NEAR...
  RED WILLOW LAKE AROUND 1210 AM CDT. 
  TOLNA AROUND 1220 AM CDT. 
  PEKIN AROUND 1225 AM CDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4785 9854 4785 9853 4786 9852 4791 9846
      4767 9807 4753 9844 4759 9850 4761 9853
      4775 9867
TIME...MOT...LOC 0505Z 225DEG 25KT 4769 9848 

HAIL...1.00IN
WIND...60MPH
 
$$

JAM

052 
WWUS53 KFGF 230521
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
1221 AM CDT TUE AUG 23 2016

NDC027-039-063-230531-
/O.EXP.KFGF.SV.W.0182.000000T0000Z-160823T0530Z/
EDDY ND-NELSON ND-GRIGGS ND-
1221 AM CDT TUE AUG 23 2016

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL EDDY...
SOUTHWESTERN NELSON AND NORTHWESTERN GRIGGS COUNTIES WILL EXPIRE AT
1230 AM CDT...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE...THE WARNING WILL BE ALLOWED TO EXPIRE.  HOWEVER GUSTY
WINDS ARE STILL POSSIBLE WITH THIS THUNDERSTORM.

LAT...LON 4785 9854 4785 9853 4786 9852 4791 9846
      4767 9807 4753 9844 4759 9850 4761 9853
      4775 9867
TIME...MOT...LOC 0520Z 225DEG 25KT 4769 9848 

$$

JAM

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 23, 12:53 AM CDT	Severe Thunderstorm Warning	FGF	Steele	24 min
Aug 23, 1:34 AM CDT	Special Weather Statement	FGF	Traill	56 min
Aug 23, 1:44 AM CDT	Severe Thunderstorm Warning	FGF	Steele, Traill	46 min
Aug 23, 2:09 AM CDT	Severe Thunderstorm Warning	FGF	Grand Forks	36 min
Aug 23, 2:47 AM CDT	Special Weather Statement	FGF	Grand Forks	43 min
Aug 23, 3:08 AM CDT	Severe Thunderstorm Warning	FGF	Grand Forks	52 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 2016 Every severe thunderstorm warning in 2016

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.