Alert archive / North Dakota / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 13, NWS Grand Forks, ND

May 26, 2012Richland County, North Dakota

NWS Grand Forks, ND issued this severe thunderstorm warning at May 26, 2012, 11:31 PM CDT for Richland 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: May 26, 2012, 11:31 PM CDT (04:31 UTC)
Expired: May 27, 2012, 12:30 AM CDT
In force: 59 min
Issued by: NWS Grand Forks, ND
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

County Richland County, ND

The radar

The Aberdeen radar (KABR), 124 km from the middle of the area, began a volume at 04:34 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 was reported inside it

Time	Report	Where	Remark
May 26, 11:55 PM CDT	HAIL 1	Lidgerwood, ND

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

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 4.5 hours before the alert went out and 166 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: 485 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 325 m²/s²
0-3 km storm-relative helicity: 549 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.3

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

849 
WUUS53 KFGF 270431
SVRFGF
NDC077-270530-
/O.NEW.KFGF.SV.W.0013.120527T0431Z-120527T0530Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
1131 PM CDT SAT MAY 26 2012

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN RICHLAND COUNTY IN SOUTHEAST NORTH DAKOTA...

* UNTIL 1230 AM CDT

* AT 1127 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THE
  STORM WAS LOCATED 4 MILES SOUTHEAST OF VEBLEN...OR 42 MILES
  SOUTHWEST OF WAHPETON...MOVING TO THE NORTHEAST AT 35 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  LIDGERWOOD AROUND 1155 PM CDT.
  STILES AROUND MIDNIGHT CDT.
  HANKINSON AROUND 1205 AM CDT.
  MANTADOR AROUND 1210 AM CDT.

THEREAFTER SOME OTHER LOCATIONS IMPACTED BY THE SEVERE THUNDERSTORM
INCLUDE GREAT BEND...BARNEY AND MOORETON.

FOR MOTORISTS ON INTERSTATE 29...THE SEVERE THUNDERSTORM WILL BE
BETWEEN...MILE MARKER 8 AROUND 1205 AM CDT...AND MILE MARKER 27
AROUND 1230 AM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES WITH LITTLE OR NO ADVANCE WARNING.

&&

LAT...LON 4599 9723 4600 9725 4641 9697 4625 9664
      4592 9696 4593 9722
TIME...MOT...LOC 0431Z 209DEG 31KT 4587 9718
WIND...HAIL <50MPH 1.00IN

$$

HOPPES

2 follow-up statements

938 
WWUS53 KFGF 270500
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
1200 AM CDT SUN MAY 27 2012

NDC077-270530-
/O.CON.KFGF.SV.W.0013.000000T0000Z-120527T0530Z/
RICHLAND ND-
1200 AM CDT SUN MAY 27 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHERN
RICHLAND COUNTY IN SOUTHEAST NORTH DAKOTA UNTIL 1230 AM CDT...

AT 1155 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THE
STORM WAS LOCATED 2 MILES SOUTHWEST OF STILES...OR 27 MILES SOUTHWEST
OF WAHPETON...MOVING TO THE NORTHEAST AT 35 MPH. 

THE SEVERE THUNDERSTORM WILL BE NEAR...
  HANKINSON AROUND 1205 AM CDT.
  MANTADOR AROUND 1210 AM CDT.
  GREAT BEND AROUND 1215 AM CDT.
  BARNEY AROUND 1220 AM CDT.

THEREAFTER SOME OTHER LOCATIONS IMPACTED BY THE SEVERE THUNDERSTORM
INCLUDE MOORETON.

FOR MOTORISTS ON INTERSTATE 29...THE SEVERE THUNDERSTORM WILL BE
BETWEEN...MILE MARKER 12 AROUND 1210 AM CDT...AND MILE MARKER 27
AROUND 1230 AM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES WITH LITTLE OR NO ADVANCE WARNING.

&&

LAT...LON 4599 9723 4600 9725 4641 9697 4625 9664
      4592 9696 4593 9722
TIME...MOT...LOC 0459Z 209DEG 31KT 4609 9707

$$

HOPPES

698 
WWUS53 KFGF 270528
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
1228 AM CDT SUN MAY 27 2012

NDC077-270538-
/O.EXP.KFGF.SV.W.0013.000000T0000Z-120527T0530Z/
RICHLAND ND-
1228 AM CDT SUN MAY 27 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN RICHLAND COUNTY IN
SOUTHEAST NORTH DAKOTA WILL EXPIRE AT 1230 AM CDT...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.

LAT...LON 4599 9723 4600 9725 4641 9697 4625 9664
      4592 9696 4593 9722
TIME...MOT...LOC 0528Z 209DEG 31KT 4626 9700

$$

HOPPES

The office that day

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

Issued	Product	Office	Counties	Lasted
May 27, 3:37 PM CDT	Special Weather Statement	FGF	Cavalier	23 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 2012 Every severe thunderstorm warning in 2012

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; radar from the NEXRAD Level II archive.