Alert archive / North Dakota / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 14, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 7, 2012, 5:23 PM CDT for Cass County, North Dakota. It was in force for 52 min. 4 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, 5:23 PM CDT (22:23 UTC)
- Expired
- Jun 7, 2012, 6:15 PM CDT
- In force
- 52 min
- Issued by
- NWS Grand Forks, ND
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Cass County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 48 km from the middle of the area, began a volume at 22:26 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, 5:30 PM CDT | TSTM WND DMG | 2 Nnw Prosper, ND | LARGE BRANCHES BROKEN DOWN AT FARMSTEAD. WIND DRIVEN HAIL CAUSED BRIEF WHITEOUT CONDITIONS. PEA TO DIME SIZED HAIL COVERED THE GROUND. |
| Jun 7, 5:35 PM CDT | TSTM WND DMG | 2 Nnw Prosper, ND | LARGE BRANCHES BROKEN DOWN AT FARMSTEAD. WIND DRIVEN HAIL CAUSED BRIEF WHITEOUT CONDITIONS. PEA TO DIME SIZED HAIL COVERED THE GROUND. |
| Jun 7, 5:40 PM CDT | TSTM WND DMG | Argusville, ND | SEMI TRACTOR AND TRAILER COMBINATION BLOWN OFF THE INTERSTATE NEAR THE ARGUSVILLE EXIT. TIME ESTIMATED FROM RADAR. |
| Jun 7, 6:00 PM CDT | TSTM WND DMG | 3 Nne Gardner, ND | SEVERAL LARGE TREE BRANCHES BROKEN DOWN IN A SHELTER BELT. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Aberdeen, SD (KABR), launched 12:00Z, 10.4 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.
- Mixed-layer CAPE
- 157 J/kg
- Mixed-layer CIN
- -309 J/kg
- Mixed-layer LCL
- 1809 m above ground
- 0-6 km bulk shear
- 3 kt
- 0-1 km storm-relative helicity
- -10 m²/s²
- 0-3 km storm-relative helicity
- 39 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
573 WUUS53 KFGF 072223 SVRFGF NDC017-072315- /O.NEW.KFGF.SV.W.0014.120607T2223Z-120607T2315Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 523 PM CDT THU JUN 7 2012 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHERN CASS COUNTY IN SOUTHEAST NORTH DAKOTA... * UNTIL 615 PM CDT * AT 521 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 WEST OF PROSPER...OR 14 MILES NORTHWEST OF FARGO...MOVING TO THE NORTH AT 30 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... ERIE...ARTHUR AND ARGUSVILLE AROUND 535 PM CDT. GARDNER AROUND 545 PM CDT. HUNTER AROUND 550 PM CDT. GRANDIN AROUND 600 PM CDT. FOR MOTORISTS ON INTERSTATE 29...THE SEVERE THUNDERSTORM WILL BE BETWEEN...MILE MARKER 85 AROUND 545 PM CDT...AND MILE MARKER 91 AROUND 555 PM CDT... PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. && LAT...LON 4723 9752 4724 9685 4687 9692 4692 9750 TIME...MOT...LOC 2223Z 191DEG 26KT 4699 9708 WIND...HAIL 60MPH 1.00IN $$ HOPPES
2 follow-up statements
190 WWUS53 KFGF 072241 SVSFGF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 541 PM CDT THU JUN 7 2012 NDC017-072315- /O.CON.KFGF.SV.W.0014.000000T0000Z-120607T2315Z/ CASS ND- 541 PM CDT THU JUN 7 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN CASS COUNTY IN SOUTHEAST NORTH DAKOTA UNTIL 615 PM CDT... AT 535 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THE STORM WAS LOCATED 4 MILES WEST OF ARGUSVILLE...OR 15 MILES NORTHWEST OF FARGO...MOVING TO THE NORTH AT 30 MPH. THE SEVERE THUNDERSTORM WILL BE NEAR... HUNTER AND GARDNER AROUND 550 PM CDT. GRANDIN AROUND 600 PM CDT. FOR MOTORISTS ON INTERSTATE 29...THE SEVERE THUNDERSTORM WILL BE BETWEEN...MILE MARKER 81 AROUND 540 PM CDT...AND MILE MARKER 91 AROUND 600 PM CDT... PRECAUTIONARY/PREPAREDNESS ACTIONS... DURING THUNDERSTORMS YOU SHOULD MOVE INSIDE A STRONG BUILDING. DO NOT STAND BY WINDOWS. DO NOT USE TELEPHONES OR ELECTRICAL APPLIANCES. && LAT...LON 4723 9752 4724 9685 4687 9692 4692 9750 TIME...MOT...LOC 2240Z 191DEG 26KT 4708 9701 $$ HOPPES
394 WWUS53 KFGF 072316 SVSFGF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 616 PM CDT THU JUN 7 2012 NDC017-072326- /O.EXP.KFGF.SV.W.0014.000000T0000Z-120607T2315Z/ CASS ND- 616 PM CDT THU JUN 7 2012 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN CASS 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 4723 9752 4724 9685 4687 9692 4692 9750 TIME...MOT...LOC 2241Z 191DEG 26KT 4699 9694 $$ 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, 6:19 PM CDT | Severe Thunderstorm Warning | FGF | Traill | 56 min |
| Jun 7, 6:38 PM CDT | Special Weather Statement | FGF | Benson | 67 min |
| Jun 7, 6:44 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Traill | 31 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.