Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 8, NWS Grand Forks, ND

May 18, 2012Beltrami County, Minnesota

NWS Grand Forks, ND issued this severe thunderstorm warning at May 18, 2012, 7:25 PM CDT for Beltrami County, Minnesota. It was in force for 65 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 18, 2012, 7:25 PM CDT (00:25 UTC)
Expired
May 18, 2012, 8:30 PM CDT
In force
65 min
Issued by
NWS Grand Forks, ND
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Beltrami County, MN

The nearest sounding before it

International Fa, MN (KINL), launched 00:00Z, 0.4 hours before the alert went out and 117 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 00:00Z on 2012-05-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 676 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, International Fa, MN at 00:00Z on 2012-05-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 11 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
676 J/kg
Mixed-layer CIN
-48 J/kg
Mixed-layer LCL
2671 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
11 m²/s²
0-3 km storm-relative helicity
148 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

312 
WUUS53 KFGF 190025
SVRFGF
MNC007-190130-
/O.NEW.KFGF.SV.W.0008.120519T0025Z-120519T0130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
725 PM CDT FRI MAY 18 2012

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

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

* UNTIL 830 PM CDT

* AT 722 PM CDT...LAW ENFORCEMENT REPORTED A SEVERE THUNDERSTORM
  PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60
  MPH. THE STORM WAS LOCATED 4 MILES EAST OF TURTLE RIVER...OR 12    
  MILES NORTHEAST OF BEMIDJI...MOVING TO THE NORTH AT 35 MPH.

 * THE SEVERE THUNDERSTORM WILL BE NEAR...
  TENSTRIKE AROUND 730 PM CDT.
  NEBISH AND HINES AROUND 735 PM CDT.
  BLACKDUCK AROUND 740 PM CDT.
  FUNKLEY AROUND 750 PM CDT.

THEREAFTER SOME OTHER LOCATIONS IMPACTED BY THE SEVERE THUNDERSTORM
INCLUDE SHOOKS...SAUM...SHOTLEY...OTTO AND WASKISH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4835 9445 4813 9443 4768 9442 4749 9459
      4760 9500
TIME...MOT...LOC 0024Z 202DEG 32KT 4761 9466
WIND...HAIL 60MPH 1.00IN

$$
DK
2 follow-up statements
486 
WWUS53 KFGF 190044
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
744 PM CDT FRI MAY 18 2012

MNC007-190130-
/O.CON.KFGF.SV.W.0008.000000T0000Z-120519T0130Z/
BELTRAMI MN-
744 PM CDT FRI MAY 18 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EAST CENTRAL
BELTRAMI COUNTY IN NORTH CENTRAL MINNESOTA UNTIL 830 PM CDT...

AT 742 PM CDT...LOCAL LAW ENFORCEMENT REPORTED A SEVERE THUNDERSTORM
PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.
THE STORM WAS LOCATED 2 MILES NORTHWEST OF BLACKDUCK...OR 24 MILES 
NORTHEAST OF BEMIDJI...MOVING TO THE NORTH AT 35 MPH.

WIND DAMAGE WAS REPORTED WITH THIS STORM 12 MILES EAST OF BEMIDJI 
AROUND 720 PM.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  FUNKLEY AROUND 750 PM CDT.
  SHOOKS AND SAUM AROUND 800 PM CDT.
  KELLIHER AROUND 805 PM CDT.
  SHOTLEY AROUND 810 PM CDT.

THEREAFTER SOME OTHER LOCATIONS IMPACTED BY THE SEVERE THUNDERSTORM
INCLUDE OTTO AND WASKISH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4753 9455 4778 9486 4835 9445 4813 9443
      4768 9442
TIME...MOT...LOC 0043Z 202DEG 32KT 4777 9456

$$

DK
269 
WWUS53 KFGF 190121
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
821 PM CDT FRI MAY 18 2012

MNC007-190132-
/O.EXP.KFGF.SV.W.0008.000000T0000Z-120519T0130Z/
BELTRAMI MN-
821 PM CDT FRI MAY 18 2012

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL BELTRAMI COUNTY
IN NORTH CENTRAL MINNESOTA WILL EXPIRE AT 830 PM CDT...

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

LAT...LON 4753 9455 4778 9486 4835 9445 4813 9443
      4768 9442
TIME...MOT...LOC 0122Z 202DEG 32KT 4809 9436

$$

DTR

The office that day

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

IssuedProductOfficeCountiesLasted
May 18, 10:49 PM CDTSevere Thunderstorm WarningFGFOtter Tail, Wadena42 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2012Every 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; the sounding from the Mesonet's radiosonde archive.