Alert archive / North Dakota / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 30, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 11, 2001, 8:45 AM CDT for Ransom County, Richland County, North Dakota. It was in force for 45 min. 1 report came from inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.
The facts
- Issued
- Jun 11, 2001, 8:45 AM CDT (13:45 UTC)
- Expired
- Jun 11, 2001, 9:30 AM CDT
- In force
- 45 min
- Issued by
- NWS Grand Forks, ND
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Ransom County, ND, Richland County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 113 km from the middle of the area, began a volume at 13:44 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 11, 9:03 AM CDT | Hail 2 | Wyndmere, ND |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Aberdeen, SD (KABR), launched 12:00Z, 1.8 hours before the alert went out and 201 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
- 2628 J/kg
- Mixed-layer CIN
- -211 J/kg
- Mixed-layer LCL
- 1168 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 432 m²/s²
- 0-3 km storm-relative helicity
- 444 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 4.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KFGF 111346 SVRFAR NDC073-077-111430- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS 845 AM CDT MON JUN 11 2001 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EASTERN RANSOM COUNTY IN SOUTHEAST NORTH DAKOTA... NORTHERN RICHLAND COUNTY IN SOUTHEAST NORTH DAKOTA... * UNTIL 930 AM CDT * AT 844 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 6 MILES EAST OF VENLO...OR ABOUT 35 MILES SOUTHWEST OF FARGO...MOVEMENT WAS TO THE EAST AT 50 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... BARRIE AT 855 AM CDT... WALCOTT AT 905 AM CDT... COLFAX AT 910 AM CDT... REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. LAT...LON 4661 9753 4639 9753 4638 9672 4659 9683 $$ NNNN
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Grand Forks, ND wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 11, 2:50 AM CDT, 5 hours 55 minutes earlier.
Area forecast discussion, Jun 11, 2:50 AM CDT, 5 hours 55 minutes before
FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS 250 AM CDT MON JUN 11 2001 ...FORECAST CHALLENGE TODAY WILL BE SVR WX AND HEAVY RAIN THREAT... .CURRENT OBSERVATIONS...06Z SFC ANALYSIS SHOWING SFC LOW IN EXTREME NW SD WITH WARM FRONT EXTENDING NORTHWARD THROUGH ND. COLD FRONT NOW ENTERING EXTREME NW ND. IR AND RADAR IMAGERY SHOWING 2 LARGE TSTM CLUSTERS IN NC AND SW ND. 5 MIN LIGHTNING STRIKES SHOWING AMAZING OVER 800 CG STRIKES WITH THESE SYSTEMS. REFER TO LATEST SPC SWOMCD FOR LATEST CONVECTIVE TRENDS. .SHORT TERM...DYNAMIC SITUATION SETTING UP FOR TODAY INTO THE EARLY EVENING. WENT WITH ETA SOLUTION FOR THIS FORECAST. STRONG H25 100+ KNOT JET MAX RIDING OVER THE CREST OF RIDGE THIS MORNING. STRONG ISOTACH GRADIENT OF RIGHT ENTRANCE REGION JUST NORTH OF THE BORDER. THIS IN CONJUNCTION WITH SFC WARM FRONTOGENESIS IS RESULTING IN GOOD DYNAMIC DESTABILIZATION. ABUNDANT MOISTURE WILL BE PRESENT TODAY WITH PWATS AROUND 1.5 INCHES. SFC AND H85 THERMODYNAMICS ARE ALSO IMPRESSIVE. H85 THETA-E VALUES OVER 340K ACROSS SOUTHERN CWA. THUS...GIVEN RECENT HEAVY RAINS IN SOUTHERN COUNTIES...FLASH FLOOD WATCH STILL LOOK GOOD AND WILL KEEP IN PLACE. AGREE WITH MAIN POINTS OF SPC SWODY1. TIMING OF FROPA SHOULD HAVE MOST OF THE CONVECTIVE ACTIVITY OUT OF THE DVL AREA BY 18Z. WILL KEEP MENTION OF TSTMS IN THE FAR SE INTO THE EARLY EVENING HOURS. .MID TERM...TONIGHT THROUGH TUESDAY EVENING SHOULD PROVIDE A QUIET RESPITE FROM THE SVR WX AS WEAK HIGH PRESSURE RIDGE INTO THE NORTHERN PLAINS. A STRONG SFC LOW BUILDS INTO THE CENTRAL PLAINS FOR EARLY WEDNESDAY WITH ANOTHER ROUND OF SIGNIFICANT PRECIPITATION POSSIBLE. UPPER LEVEL DYNAMICS ARE ONCE AGAIN IMPRESSIVE FOR JUNE WITH A STRONG COUPLED H25 JET WITH MAX UVV OVER THE DAKOTAS AGAIN IN THE 06Z-12Z TIME FRAME WEDNESDAY. .EXTENDED...NO CHANGES PLANNED ATTM. .FGF...FLASH FLOOD WATCH TODAY FOR RANSOM...SARGENT...RICHLAND... WILKIN...OTTERTAIL AND GRANT COUNTIES. BRAMER
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 11, 2:54 AM CDT | Severe Thunderstorm Warning | FGF | Benson, Towner | 36 min |
| Jun 11, 8:13 AM CDT | Severe Thunderstorm Warning | FGF | Ransom | 32 min |
| Jun 11, 9:16 AM CDT | Severe Thunderstorm Warning | FGF | Barnes | 44 min |
| Jun 11, 10:11 AM CDT | Severe Thunderstorm Warning | FGF | Cass | 49 min |
| Jun 11, 10:14 AM CDT | Severe Thunderstorm Warning | FGF | Barnes | 31 min |
| Jun 11, 10:46 AM CDT | Severe Thunderstorm Warning | FGF | Barnes | 29 min |
| Jun 11, 11:01 AM CDT | Severe Thunderstorm Warning | FGF | Cass | 29 min |
| Jun 11, 11:23 AM CDT | Severe Thunderstorm Warning | FGF | Richland | 37 min |
| Jun 11, 11:29 AM CDT | Severe Thunderstorm Warning | FGF | Cass | 31 min |
Nearby
Severe Thunderstorm Warnings in North Dakota, 2001Every severe thunderstorm warning in 2001
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.