Alert archive / North Dakota / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 49, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 19, 2021, 11:28 AM CDT for 5 counties in North Dakota. It was in force for 62 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
- Jul 19, 2021, 11:28 AM CDT (16:28 UTC)
- Expired
- Jul 19, 2021, 12:30 PM CDT
- In force
- 62 min
- Issued by
- NWS Grand Forks, ND
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Benson County, ND, Grand Forks County, ND, Nelson County, ND, Ramsey County, ND, Walsh County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 112 km from the middle of the area, began a volume at 16:28 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 |
|---|---|---|---|
| Jul 19, 12:05 PM CDT | TSTM WND DMG | Lakota, ND | A FEW LARGE 3 TO 5 INCH DIAMETER BRANCHES BROKEN DOWN IN TOWN. |
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 12:00Z, 4.5 hours before the alert went out and 224 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.
- Mixed-layer CAPE
- 1332 J/kg
- Mixed-layer CIN
- -233 J/kg
- Mixed-layer LCL
- 1421 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- -9 m²/s²
- 0-3 km storm-relative helicity
- 49 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted.
042
WUUS53 KFGF 191628
SVRFGF
NDC005-035-063-071-099-191730-
/O.NEW.KFGF.SV.W.0049.210719T1628Z-210719T1730Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Grand Forks ND
1128 AM CDT Mon Jul 19 2021
The National Weather Service in Grand Forks has issued a
* Severe Thunderstorm Warning for...
Southeastern Benson County in northeastern North Dakota...
Western Grand Forks County in northeastern North Dakota...
Northern Nelson County in northeastern North Dakota...
Ramsey County in northeastern North Dakota...
Southwestern Walsh County in northeastern North Dakota...
* Until 1230 PM CDT.
* At 1128 AM CDT, a severe thunderstorm was located 7 miles east of
Webster, or 13 miles northeast of Devils Lake, moving southeast at
35 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...
Southam and Crary around 1145 AM CDT.
Other locations in the path of this severe thunderstorm include
Doyon, Bartlett, Lakota and Mapes.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4853 9858 4810 9781 4782 9852 4785 9852
4785 9856 4830 9902
TIME...MOT...LOC 1628Z 311DEG 31KT 4827 9871
HAIL...1.00IN
WIND...60MPH
$$
JR1 follow-up statement
996
WWUS53 KFGF 191657
SVSFGF
Severe Weather Statement
National Weather Service Grand Forks ND
1157 AM CDT Mon Jul 19 2021
NDC005-035-063-071-099-191730-
/O.CON.KFGF.SV.W.0049.000000T0000Z-210719T1730Z/
Benson ND-Grand Forks ND-Nelson ND-Ramsey ND-Walsh ND-
1157 AM CDT Mon Jul 19 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1230 PM CDT
FOR SOUTHEASTERN BENSON...WESTERN GRAND FORKS...NORTHERN NELSON...
SOUTHEASTERN RAMSEY AND SOUTHWESTERN WALSH COUNTIES...
At 1157 AM CDT, a severe thunderstorm was located near Bartlett, or
20 miles east of Devils Lake, moving southeast at 35 mph.
HAZARD...70 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect considerable
tree damage. Wind damage is also likely to mobile homes,
roofs, and outbuildings.
Locations impacted include...
Bartlett, Lakota, Mapes and Michigan.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4810 9781 4782 9852 4785 9852 4785 9856
4820 9884 4842 9837
TIME...MOT...LOC 1657Z 311DEG 31KT 4810 9842
HAIL...1.00IN
WIND...70MPH
$$
JRThe office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 19, 10:55 AM CDT | Special Weather Statement | FGF | Ramsey | 65 min |
| Jul 19, 12:11 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Griggs, Nelson, Ramsey, Steele, Walsh | 64 min |
| Jul 19, 1:02 PM CDT | Special Weather Statement | FGF | Grand Forks, Steele, Traill | 58 min |
| Jul 19, 1:32 PM CDT | Severe Thunderstorm Warning | FGF | Cass, Grand Forks, Steele, Traill | 58 min |
| Jul 19, 2:27 PM CDT | Severe Thunderstorm Warning | FGF | Cass, Richland, Traill | 63 min |
| Jul 19, 3:13 PM CDT | Severe Thunderstorm Warning | FGF | Cass, Ransom, Richland, Sargent | 62 min |
| Jul 19, 6:44 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Ramsey, Towner | 46 min |
Nearby
Severe Thunderstorm Warnings in North Dakota, 2021Every severe thunderstorm warning in 2021
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.