Alert archive / North Dakota / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 43, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 5, 1999, 2:20 AM CDT for Richland County, Sargent County, North Dakota. It was in force for 50 min. 5 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jun 5, 1999, 2:20 AM CDT (07:20 UTC)
- Expired
- Jun 5, 1999, 3:10 AM CDT
- In force
- 50 min
- Issued by
- NWS Grand Forks, ND
- Area
- Whole counties
Counties Richland County, ND, Sargent County, ND
The radar
The Aberdeen radar (KABR), 119 km from the middle of the area, began a volume at 07:18 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 5, 2:30 AM CDT | Thunderstorm Wind | Cayuga, ND | The wind blew the roof off a shed. |
| Jun 5, 2:45 AM CDT | Thunderstorm Wind | Lidgerwood, ND | A 108x50 foot storage shed was picked up by the wind and thrown into a grove of trees. Some debris was thrown 1000 feet away. |
| Jun 5, 2:50 AM CDT | Thunderstorm Wind 51 | Wahpeton Arpt, ND | |
| Jun 5, 2:50 AM CDT | Thunderstorm Wind | Wahpeton, ND | A business on Highway 13 reported substantial damage to its machinery and buildings as the high winds came through. A semi truck also was blown over close by. |
| Jun 5, 2:50 AM CDT | Thunderstorm Wind | Wahpeton, ND | A 5 year-old boy was injured when parts of a neighbors roof came through a window in his house. He received 10 to 12 stitches on his neck and head from glass cuts. Nearby a garage was blown off its foundation and a boat was lifted into some trees. Another n |
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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 4, 9:15 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 5, 1:15 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Aberdeen, SD (KABR), launched 00:00Z, 7.3 hours before the alert went out and 167 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
- 2271 J/kg
- Mixed-layer CIN
- -27 J/kg
- Mixed-layer LCL
- 1570 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 7 m²/s²
- 0-3 km storm-relative helicity
- -7 m²/s²
- Significant tornado parameter
- -0.1
- Supercell composite
- -2.2
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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 4, 8:45 PM CDT, 5 hours 35 minutes earlier.
Area forecast discussion, Jun 4, 8:45 PM CDT, 5 hours 35 minutes before
FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 845 PM CDT FRI JUN 04 1999 FCST CONCERNS SVR WX THREAT. SVR WX CONTINUING ALONG NEARLY STATIONARY BOUNDARY FROM EXT SE ND THROUGH NW MN. LOW LEVEL BOUNDARY INTERACTIONS VIA KMVX-88D AND VIS IMAGERY HAS PLAYED A BIG PART IN SVR THIS EVENING. FROM RUC MOIST CONVERGENCE CONTINUES AS BOUNDARY PROGGED TO MOVE LITTLE OVERNIGHT ALONG WITH H8 THETA-E RIDGE SO CONVECTION TO CONTINUE WITH SVR. TRAINING CELLS ALONG BOUNDARY MAY PROMPT NEED FOR SOME SORT FLOOD ADVISORY/WARNING OVR NW MN AND WILL CONTINUE TO MONITOR CLOSELY. POSSIBLE RELIEF LATER TONIGHT AS SHORWAVE LIFTING NORTH INCREASES ORGANIZED CONVECTION TO OUR SOUTH...HOPEFULLY... NEW WATCH EXPECTED SHORTLY AND WILL ISSUE UPDATE ACCORDINGLY. .FGF...NONE. VOELKER
In the hours before
Local storm report, Jun 4, 10:38 PM CDT, 3 hours 42 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTION
NATIONAL WEATHER SERVICE EASTERN NORTH DAKOTA/GRAND FORKS
1038 PM CDT FRI JUN 04 1999
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0447 PM HIGHLANDING MN 1.00 INCH HAIL
06/04/99 PENNINGTON
0551 PM GULLY MN 0.75 INCH HAIL
06/04/99 POLK
0553 PM GULLY MN 1.00 INCH HAIL
06/04/99 POLK
0603 PM 15W RINDAL MN 1.00 INCH HAIL
06/04/99 NORMAN
0620 PM ERSKINE MN 0.75 INCH HAIL
06/04/99 POLK
0642 PM MCCINTOSH MN 1.00 INCH HAIL
06/04/99 POLK
0644 PM MCCINTOSH MN 3.00 INCH HAIL
06/04/99 POLK
0655 PM MCCINTOSH MN 1.00 INCH HAIL
06/04/99 POLK
0715 PM GULLY MN 0.75 INCH HAIL
06/04/99 POLK
0734 PM BAGLEY MN 0.75 INCH HAIL
06/04/99 CLEARWATER
0735 PM CLEARBROOK MN 0.75 INCH HAIL
06/04/99 CLEARWATER
0825 PM 2 E FOSSTON MN 0.88 INCH HAIL
06/04/99 POLK
0838 PM HARWOOD ND 0.75 INCH HAIL
06/04/99 CASS
0849 PM TENSTRIKE MN 0.75 INCH HAIL
06/04/99 BELTRAMI
0912 PM BLACKDUCK MN 0.88 INCH HAIL
06/04/99 BELTRAMI
0954 PM 3N BEMIDJI MN 0.88 INCH HAIL
06/04/99 BELTRAMI
1005 PM 8N BEMIDJI MN 0.75 INCH HAIL
06/04/99 BELTRAMI
1013 PM TENSTRIKE MN 0.75 INCH HAIL
06/04/99 BELTRAMILocal storm report, Jun 5, 2:05 AM CDT, 15 minutes before
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</html>The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 4, 7:04 PM CDT | Severe Thunderstorm Warning | FGF | Polk | 36 min |
| Jun 4, 10:51 PM CDT | Severe Thunderstorm Warning | FGF | Clay, Norman | 34 min |
| Jun 4, 11:30 PM CDT | Severe Thunderstorm Warning | FGF | Clearwater, Mahnomen | 35 min |
| Jun 4, 11:55 PM CDT | Severe Thunderstorm Warning | FGF | Becker | 35 min |
| Jun 5, 12:06 AM CDT | Severe Thunderstorm Warning | FGF | Clearwater | 34 min |
| Jun 5, 12:20 AM CDT | Severe Thunderstorm Warning | FGF | Hubbard | 35 min |
| Jun 5, 12:55 AM CDT | Severe Thunderstorm Warning | FGF | Hubbard | 50 min |
| Jun 5, 2:37 AM CDT | Severe Thunderstorm Warning | FGF | Grant, Wilkin | 48 min |
| Jun 5, 2:56 AM CDT | Severe Thunderstorm Warning | FGF | Otter Tail | 49 min |
| Jun 5, 3:11 AM CDT | Severe Thunderstorm Warning | FGF | Clay | 34 min |
Nearby
Severe Thunderstorm Warnings in North Dakota, 1999Every severe thunderstorm warning in 1999
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.