Alert archive / North Dakota / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 195, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 27, 1999, 2:07 PM CDT for Barnes County, North Dakota. It was in force for 33 min. 2 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
- Jul 27, 1999, 2:07 PM CDT (19:07 UTC)
- Expired
- Jul 27, 1999, 2:40 PM CDT
- In force
- 33 min
- Issued by
- NWS Grand Forks, ND
- Area
- Whole counties
County Barnes County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 87 km from the middle of the area, began a volume at 19:07 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 27, 2:25 PM CDT | Hail 1.5 | Litchville, ND | |
| Jul 27, 2:50 PM CDT | Hail 1.75 | Valley City, 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, 7.1 hours before the alert went out and 228 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
- 3 J/kg
- Mixed-layer CIN
- -442 J/kg
- Mixed-layer LCL
- 1364 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 121 m²/s²
- 0-3 km storm-relative helicity
- 155 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Jul 27, 10:15 AM CDT, 3 hours 52 minutes earlier.
Area forecast discussion, Jul 27, 10:15 AM CDT, 3 hours 52 minutes before
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</html>In the hours before
Local storm report, Jul 27, 10:55 AM CDT, 3 hours 12 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN NORTH DAKOTA/GRAND FORKS
115 PM CDT MON JUL 26 1999...CORRECTION TO TIME AT ULEN
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1100 AM 2 NE POLAND ND .75 INCH HAIL
07/25/99 WALSH
0210 PM 1 W ULEN MN WIND DAMAGE
07/25/99 CLAY THREE INCH DIAMTER TREE
BRANCHES DOWN
0212 PM ULEN MN WIND DAMAGE
07/25/99 CLAY SEVERAL TREES DOWN IN TOWNSpecial weather statement, Jul 27, 12:48 PM CDT, 1 hour 19 minutes before
AMD MNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024- 026>030-038-039-049-052-053-271910- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 1248 PM CDT TUE JUL 27 1999 ...SEVERE STORMS ARE EXPECTED ACROSS EXTREME EASTERN NORTH DAKOTA...NORTHWEST AND WEST CENTRAL MINNESOTA THIS AFTERNOON AND EVENING... SYNOPSIS...WARM...MOIST AND UNSTABLE AIR WILL CONTINUE TO WORK NORTHWARD ACROSS EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA. AT THE SAME TIME A STRONG UPPER-LEVEL JET STREAM AND SURFACE TROUGH WILL WORK INTO EASTERN NORTH DAKOTA. ALL OF THESE COMBINED WILL PRODUCE SUFFICIENT LIFT AND INSTABILITY TO PRODUCE AREAS OF SEVERE THUNDERSTORMS LATER THIS AFTERNOON AND EVENING. THERE WILL ALSO BE ENOUGH WIND SHEAR THAT A FEW TORNADOES ARE POSSIBLE WITH THE STRONGER THUNDERSTORMS. AREA OF CONCERN...A MODERATE RISK OF SEVERE WEATHER IS FORECAST SOUTH AND EAST OF A LINE FROM FORT RANSOM TO GRANDIN AND EAST TO BEMIDJI. A SLIGHT RISK IS EXPECTED EAST OF A LINE FROM COOPERSTOWN TO HALLOCK MINNESOTA. TIME...START AFTER 2 PM AND SHOULD MOVE OUT OF THE AREA TOWARDS MIDNIGHT. TYPE OF HAZARD...MAINLY LARGE HAIL AND DAMAGING WINDS. HOWEVER A FEW TORNADOES ARE ALSO POSSIBLE. PERSONS SHOULD STAY TUNED TO NOAA WEATHER RADIO...LOCAL RADIO AND TELEVISION FOR FURTHER FORECASTS AND POSSIBLE WATCHES LATER THIS AFTERNOON.
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 2:34 PM CDT | Severe Thunderstorm Warning | FGF | Cass | 36 min |
| Jul 27, 2:49 PM CDT | Severe Thunderstorm Warning | FGF | Barnes | 31 min |
| Jul 27, 3:00 PM CDT | Severe Thunderstorm Warning | FGF | Cass | 35 min |
| Jul 27, 3:12 PM CDT | Severe Thunderstorm Warning | FGF | Cass | 33 min |
| Jul 27, 3:19 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Ransom | 36 min |
| Jul 27, 3:36 PM CDT | Severe Thunderstorm Warning | FGF | Cass | 29 min |
| Jul 27, 3:54 PM CDT | Severe Thunderstorm Warning | FGF | Ransom | 36 min |
| Jul 27, 4:20 PM CDT | Severe Thunderstorm Warning | FGF | Richland | 35 min |
| Jul 27, 4:27 PM CDT | Tornado Warning | FGF | Ransom, Richland | 33 min |
| Jul 27, 4:33 PM CDT | Severe Thunderstorm Warning | FGF | Cass | 32 min |
| Jul 27, 4:55 PM CDT | Tornado Warning | FGF | Richland | 35 min |
| Jul 27, 3:17 PM CDT | Severe Thunderstorm Warning | FGF | Clay, Norman | 33 min |
| Jul 27, 3:48 PM CDT | Severe Thunderstorm Warning | FGF | Clay, Norman | 32 min |
| Jul 27, 4:01 PM CDT | Severe Thunderstorm Warning | FGF | Mahnomen | 34 min |
| Jul 27, 4:28 PM CDT | Severe Thunderstorm Warning | FGF | Clearwater | 32 min |
| Jul 27, 4:52 PM CDT | Severe Thunderstorm Warning | FGF | Beltrami, Hubbard | 33 min |
| Jul 27, 5:20 PM CDT | Tornado Warning | FGF | Wilkin | 35 min |
| Jul 27, 5:21 PM CDT | Severe Thunderstorm Warning | FGF | Becker | 34 min |
| Jul 27, 5:36 PM CDT | Severe Thunderstorm Warning | FGF | Beltrami | 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.