Alert archive / North Dakota / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 16, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 7, 2012, 6:44 PM CDT for Grand Forks County, Traill County, North Dakota. It was in force for 31 min. 2 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 7, 2012, 6:44 PM CDT (23:44 UTC)
- Expired
- Jun 7, 2012, 7:15 PM CDT
- In force
- 31 min
- Issued by
- NWS Grand Forks, ND
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Grand Forks County, ND, Traill County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 15 km from the middle of the area, began a volume at 23:45 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 |
|---|---|---|---|
| Jun 7, 6:50 PM CDT | HAIL 0.88 | Mayville, ND | FEW DIME TO NICKEL SIZED HAIL REPORTED VIA FACEBOOK. |
| Jun 7, 7:05 PM CDT | TSTM WND DMG | 2 Nne Reynolds, ND | A FEW LARGE TREE BRANCHES BROKEN DOWN. HAIL FROM PEA TO DIME SIZED FELL FOR ABOUT 5 MINUTES. |
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, 11.7 hours before the alert went out and 280 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
- 221 J/kg
- Mixed-layer CIN
- -348 J/kg
- Mixed-layer LCL
- 1494 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 30 m²/s²
- 0-3 km storm-relative helicity
- 36 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
857 WUUS53 KFGF 072344 SVRFGF NDC035-097-080015- /O.NEW.KFGF.SV.W.0016.120607T2344Z-120608T0015Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 644 PM CDT THU JUN 7 2012 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHEASTERN GRAND FORKS COUNTY IN NORTHEAST NORTH DAKOTA... NORTHWESTERN TRAILL COUNTY IN SOUTHEAST NORTH DAKOTA... * UNTIL 715 PM CDT * AT 640 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 MAYVILLE...OR 31 MILES SOUTH OF GRAND FORKS...MOVING TO THE NORTH AT 25 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... REYNOLDS AND HOLMES AROUND 715 PM CDT. PRECAUTIONARY/PREPAREDNESS ACTIONS... DURING THUNDERSTORMS YOU SHOULD MOVE INSIDE A STRONG BUILDING. DO NOT STAND BY WINDOWS. DO NOT USE TELEPHONES OR ELECTRICAL APPLIANCES. && LAT...LON 4775 9702 4741 9723 4746 9748 4782 9734 TIME...MOT...LOC 2344Z 199DEG 20KT 4752 9731 WIND...HAIL 60MPH 1.00IN $$ HOPPES
2 follow-up statements
701 WWUS53 KFGF 080005 SVSFGF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 705 PM CDT THU JUN 7 2012 NDC035-097-080015- /O.CON.KFGF.SV.W.0016.000000T0000Z-120608T0015Z/ GRAND FORKS ND-TRAILL ND- 705 PM CDT THU JUN 7 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN GRAND FORKS COUNTY IN NORTHEAST NORTH DAKOTA...AND NORTHWESTERN TRAILL COUNTY IN SOUTHEAST NORTH DAKOTA UNTIL 715 PM CDT... AT 704 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THE STORM WAS LOCATED 3 MILES SOUTHWEST OF REYNOLDS...OR 19 MILES SOUTH OF GRAND FORKS...MOVING TO THE NORTHEAST AT 25 MPH. THE SEVERE THUNDERSTORM WILL BE NEAR... REYNOLDS AROUND 710 PM CDT. FOR MOTORISTS ON INTERSTATE 29...THE SEVERE THUNDERSTORM WILL BE BETWEEN...MILE MARKER 122 AROUND 710 PM CDT...AND MILE MARKER 128 AROUND 715 PM CDT... PRECAUTIONARY/PREPAREDNESS ACTIONS... DURING THUNDERSTORMS YOU SHOULD MOVE INSIDE A STRONG BUILDING. DO NOT STAND BY WINDOWS. DO NOT USE TELEPHONES OR ELECTRICAL APPLIANCES. && LAT...LON 4775 9702 4741 9723 4746 9748 4782 9734 TIME...MOT...LOC 0005Z 208DEG 23KT 4765 9716 $$ HOPPES
308 WWUS53 KFGF 080015 RRA SVSFGF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 715 PM CDT THU JUN 7 2012 NDC035-097-080026- /O.EXP.KFGF.SV.W.0016.000000T0000Z-120608T0015Z/ GRAND FORKS ND-TRAILL ND- 715 PM CDT THU JUN 7 2012 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN GRAND FORKS COUNTY IN NORTHEAST NORTH DAKOTA...AND NORTHWESTERN TRAILL COUNTY IN SOUTHEAST NORTH DAKOTA HAS EXPIRED... THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY. LAT...LON 4775 9702 4741 9723 4746 9748 4782 9734 TIME...MOT...LOC 0005Z 208DEG 23KT 4765 9716 $$ HOPPES
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 7, 1:05 AM CDT | Special Weather Statement | FGF | Benson | 55 min |
| Jun 7, 4:23 PM CDT | Special Weather Statement | FGF | Ransom | 67 min |
| Jun 7, 5:10 PM CDT | Special Weather Statement | FGF | Barnes | 65 min |
| Jun 7, 5:15 PM CDT | Special Weather Statement | FGF | Cass | 60 min |
| Jun 7, 5:23 PM CDT | Severe Thunderstorm Warning | FGF | Cass | 52 min |
| Jun 7, 6:19 PM CDT | Severe Thunderstorm Warning | FGF | Traill | 56 min |
| Jun 7, 6:38 PM CDT | Special Weather Statement | FGF | Benson | 67 min |
Nearby
Severe Thunderstorm Warnings in North Dakota, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.