Alert archive / Minnesota / Tornado Warnings in 2024

Tornado Warning 13, NWS Grand Forks, ND

June 28, 2024Mahnomen County, Norman County, Polk County, Minnesota

NWS Grand Forks, ND issued this tornado warning at Jun 28, 2024, 10:03 PM CDT for Mahnomen County, Norman County, Polk County, Minnesota. It was in force for 27 min. 3 reports 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
Jun 28, 2024, 10:03 PM CDT (03:03 UTC)
Expired
Jun 28, 2024, 10:30 PM CDT
In force
27 min
Issued by
NWS Grand Forks, ND
Area
Storm-based polygon
Tornado
Radar indicated
Hail
2.0 in

Counties Mahnomen County, MN, Norman County, MN, Polk County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 75 km from the middle of the area, began a volume at 03:03 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

TimeReportWhereRemark
Jun 28, 10:12 PM CDTHAIL 1.754 Wsw Flaming, MNCorrects previous hail report from Lockhart. Broadcast media relayed a report from Public about 8 miles east of Lockhart. Golfball sized hail, hail damage to house, and two windows blown out.
Jun 28, 10:15 PM CDTHAIL 1.754 N Gary, MNPhoto of ping pong to golf ball sized hail sent via X/Twitter.
Jun 28, 10:20 PM CDTHAIL 1.754 N Gary, MNCorrects previous hail report from 4 N Gary. Photo of ping pong to golf ball sized hail sent via X/Twitter.

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

The nearest sounding before it

International Fa, MN (KINL), launched 00:00Z, 3.1 hours before the alert went out and 260 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 2024-06-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 214 joules per kilogram.LCLLFCEL10008507005003002001001 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 00:00Z on 2024-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 97 square meters per square second.1939587897Sfc1 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
214 J/kg
Mixed-layer CIN
-38 J/kg
Mixed-layer LCL
539 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
97 m²/s²
0-3 km storm-relative helicity
168 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.2

Open this sounding in Storm Lab

The text

As transmitted.

855 
WFUS53 KFGF 290303
TORFGF
MNC087-107-119-290330-
/O.NEW.KFGF.TO.W.0013.240629T0303Z-240629T0330Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Grand Forks ND
1003 PM CDT Fri Jun 28 2024

The National Weather Service in Grand Forks has issued a

* Tornado Warning for...
  Northeastern Norman County in northwestern Minnesota...
  South central Polk County in northwestern Minnesota...
  Northwestern Mahnomen County in northwestern Minnesota...

* Until 1030 PM CDT.

* At 1003 PM CDT, a severe thunderstorm capable of producing a
  tornado was located near Lockhart, or 41 miles southeast of Grand
  Forks, moving east at 50 mph.

  HAZARD...Tornado and hail up to two inches in diameter.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* Locations impacted include...
  Mahnomen, Fertile, Winger, Gary, Beltrami, Bejou, and Lockhart.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4737 9660 4755 9657 4755 9595 4722 9597
TIME...MOT...LOC 0303Z 277DEG 45KT 4745 9647 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...2.00 IN

$$

MM
1 follow-up statement
632 
WWUS53 KFGF 290320
SVSFGF

Severe Weather Statement
National Weather Service Grand Forks ND
1020 PM CDT Fri Jun 28 2024

MNC087-107-119-290330-
/O.CON.KFGF.TO.W.0013.000000T0000Z-240629T0330Z/
Norman MN-Polk MN-Mahnomen MN-
1020 PM CDT Fri Jun 28 2024

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1030 PM CDT FOR
NORTHEASTERN NORMAN...SOUTH CENTRAL POLK AND NORTHWESTERN MAHNOMEN
COUNTIES...

At 1019 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Ranum, or 44 miles north of Detroit Lakes, moving
east at 50 mph.

HAZARD...Tornado and two inch hail.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

Locations impacted include...
Mahnomen, Fertile, Winger, Gary, Bejou, Faith, and Rindal.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4732 9638 4755 9639 4755 9595 4722 9597
TIME...MOT...LOC 0319Z 270DEG 45KT 4743 9616 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...2.00 IN

$$

MM

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 28, 9:33 PM CDTSevere Thunderstorm Warning Considerable damage threatFGFNorman, Polk42 min
Jun 28, 10:15 PM CDTSevere Thunderstorm Warning Considerable damage threatFGFClearwater, Mahnomen, Norman, Polk45 min
Jun 28, 10:31 PM CDTTornado WarningFGFClearwater, Mahnomen, Norman, Polk29 min
Jun 28, 10:32 PM CDTTornado WarningFGFClearwater, Mahnomen, Norman, Polk28 min
Jun 28, 10:53 PM CDTSevere Thunderstorm WarningFGFBeltrami, Clearwater, Hubbard, Mahnomen, Polk52 min
Jun 28, 11:30 PM CDTSevere Thunderstorm WarningFGFBeltrami, Hubbard45 min
Jun 29, 8:24 AM CDTRiver Flood WarningFGFClay6 days

Nearby

Tornado Warnings in Minnesota, 2024Every tornado warning in 2024Tornadoes in 2024

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.