Alert archive / Minnesota / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 21, NWS Grand Forks, ND

May 30, 2011Beltrami County, Minnesota

NWS Grand Forks, ND issued this severe thunderstorm warning at May 30, 2011, 11:16 PM CDT for Beltrami County, Minnesota. It was in force for 29 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: May 30, 2011, 11:16 PM CDT (04:16 UTC)
Expired: May 30, 2011, 11:45 PM CDT
In force: 29 min
Issued by: NWS Grand Forks, ND
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Beltrami County, MN

The radar

The Duluth radar (KDLH), 202 km from the middle of the area, began a volume at 04:16 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 30, 8:43 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

International Fa, MN (KINL), launched 00:00Z, 4.3 hours before the alert went out and 135 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: 4 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 443 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 657 m²/s²
0-3 km storm-relative helicity: 727 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.2

Open this sounding in Storm Lab

The text

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

091 
WUUS53 KFGF 310416
SVRFGF
MNC007-310445-
/O.NEW.KFGF.SV.W.0021.110531T0416Z-110531T0445Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
1116 PM CDT MON MAY 30 2011

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN BELTRAMI COUNTY IN NORTH CENTRAL MINNESOTA...

* UNTIL 1145 PM CDT

* AT 1110 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH. THE STORM WAS LOCATED OVER
  BEMIDJI...MOVING TO THE NORTHEAST AT 50 MPH.  TREE WAS REPORTED DOWN
  BLOCKING COUNTY ROAD 22 NORTH OF BEMIDJI.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  TENSTRIKE AND HINES AROUND 1120 PM CDT.
  BLACKDUCK AROUND 1125 PM CDT.
  SHOOKS AND FUNKLEY AROUND 1135 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4746 9471 4759 9490 4795 9442 4794 9441
      4781 9440 4766 9441
TIME...MOT...LOC 0415Z 224DEG 55KT 4759 9471
WIND...HAIL 60MPH 1.00IN

$$

DTR

2 follow-up statements

435 
WWUS53 KFGF 310438
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
1138 PM CDT MON MAY 30 2011

MNC007-310445-
/O.CON.KFGF.SV.W.0021.000000T0000Z-110531T0445Z/
BELTRAMI MN-
1138 PM CDT MON MAY 30 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
BELTRAMI COUNTY IN NORTH CENTRAL MINNESOTA UNTIL 1145 PM CDT...

AT 1133 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF
60 MPH.  THE STORM WAS LOCATED OVER FUNKLEY...OR 30 MILES NORTHEAST
OF BEMIDJI...MOVING TO THE NORTHEAST AT 65 MPH.

THE SEVERE THUNDERSTORM WILL AFFECT MAINLY RURAL AREAS OF
SOUTHEASTERN BELTRAMI COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4746 9471 4759 9490 4795 9442 4794 9441
      4781 9440 4766 9441
TIME...MOT...LOC 0438Z 224DEG 55KT 4784 9434

$$

DTR

768 
WWUS53 KFGF 310445
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
1145 PM CDT MON MAY 30 2011

MNC007-310455-
/O.EXP.KFGF.SV.W.0021.000000T0000Z-110531T0445Z/
BELTRAMI MN-
1145 PM CDT MON MAY 30 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN BELTRAMI COUNTY
IN NORTH CENTRAL MINNESOTA HAS EXPIRED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.

LAT...LON 4746 9471 4759 9490 4795 9442 4794 9441
      4781 9440 4766 9441
TIME...MOT...LOC 0445Z 224DEG 55KT 4791 9422

$$

DTR

The office that day

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

Issued	Product	Office	Counties	Lasted
May 30, 8:47 PM CDT	Tornado Warning	FGF	Clay	43 min
May 30, 8:58 PM CDT	Tornado Warning	FGF	Polk	47 min
May 30, 9:06 PM CDT	Tornado Warning	FGF	Polk	39 min
May 30, 9:12 PM CDT	Tornado Warning	FGF	Grant	48 min
May 30, 9:22 PM CDT	Severe Thunderstorm Warning	FGF	Becker, Clay, Norman	38 min
May 30, 9:40 PM CDT	Severe Thunderstorm Warning	FGF	Pennington, Polk, Red Lake	65 min
May 30, 9:43 PM CDT	Tornado Warning	FGF	Polk	47 min
May 30, 9:48 PM CDT	Severe Thunderstorm Warning	FGF	Norman, Polk	27 min
May 30, 9:50 PM CDT	Severe Thunderstorm Warning	FGF	Kittson	25 min
May 30, 10:12 PM CDT	Flash Flood Warning	FGF	Grant	9 hr
May 30, 10:20 PM CDT	Areal Flood Advisory	FGF	Polk	8 hr
May 30, 10:21 PM CDT	Severe Thunderstorm Warning	FGF	Becker, Beltrami, Clearwater, Hubbard, Mahnomen, Otter Tail and 2 more	54 min
May 30, 10:33 PM CDT	Severe Thunderstorm Warning	FGF	Beltrami, Clearwater, Kittson, Lake of the Woods, Marshall, Pennington and 3 more	57 min
May 31, 3:44 AM CDT	Wind Advisory	FGF	Becker, Beltrami, Clay, Clearwater, Grant, Hubbard and 11 more	19 hr

Nearby

Severe Thunderstorm Warnings in Minnesota, 2011 Every severe thunderstorm 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.