Alert archive / North Dakota / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 32, NWS Bismarck, ND
NWS Bismarck, ND issued this severe thunderstorm warning at Jun 8, 1999, 4:00 PM CDT for Mountrail County, North Dakota. It was in force for 60 min. 1 report 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 8, 1999, 4:00 PM CDT (21:00 UTC)
- Expired
- Jun 8, 1999, 5:00 PM CDT
- In force
- 60 min
- Issued by
- NWS Bismarck, ND
- Area
- Whole counties
County Mountrail County, ND
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 8, 4:20 PM CDT | Hail 1 | Stanley, 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 8, 3:30 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 12:00Z, 9.0 hours before the alert went out and 202 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1557 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 90 m²/s²
- 0-3 km storm-relative helicity
- 202 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 Bismarck, ND wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 8, 3:12 PM CDT, 48 minutes earlier.
Area forecast discussion, Jun 8, 3:12 PM CDT, 48 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BISMARCK ND 312 PM CDT TUE JUN 8 1999 ACTIVE EVENING AGAIN AS TSRA ARE BEGIN TO FIRE ALONG/JUST AHEAD OF CDFNT ALONG MT BDR AND AHEAD OF APPROACHING UPR LVL TROF OVR THE NRN ROCKIES. VERY UNSTABLE AMS OVR THE CWA AND UVV'S INCREASING ALONG STRONG MID LVL JET STREAK. XPCT TSRA TO INCREASE BCMG SVR ALONG THE BNDRY THS AFTN IN THE WEST AND NORTH. SYS WL SLOWLY MOV EAST TNGT WITH THE THREAT OF MCS DVLPG WHICH IS MAINLY A HAIL AND HEAVY RAIN PRODUCER. -SHRA WL CONT INTO WED BUT XPCT ACTIVITY TO END IN THE AFTN AS SYS EJECTS INTO SRN CANADA. UPR PATTERN BECMS MORE ZONAL WITH CHANNELED PVA LATE IN THE PD AND BRING A MORE SETTLED PATTERN TO THE ,CWA THRU THE WEEKEND. THE EXTENDED SHWS SAME PATTERN WITH MAINLY DRY CONDITIONS INTO THE WEEKEND. .BIS...NONE. RGT
The office that day
Everything else NWS Bismarck, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 8, 3:54 AM CDT | Severe Thunderstorm Warning | BIS | LaMoure | 51 min |
| Jun 8, 2:53 PM CDT | Severe Thunderstorm Warning | BIS | McKenzie | 67 min |
| Jun 8, 4:45 PM CDT | Severe Thunderstorm Warning | BIS | McKenzie | 60 min |
| Jun 8, 5:05 PM CDT | Severe Thunderstorm Warning | BIS | Burke, Ward | 40 min |
| Jun 8, 5:52 PM CDT | Tornado Warning | BIS | McKenzie, Mountrail | 53 min |
| Jun 8, 6:50 PM CDT | Tornado Warning | BIS | Mountrail | 40 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.