Alert archive / North Dakota / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 21, NWS Bismarck, ND
NWS Bismarck, ND issued this severe thunderstorm warning at May 18, 2007, 4:31 PM CDT for Mountrail County, Ward County, North Dakota. It was in force for 44 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- May 18, 2007, 4:31 PM CDT (21:31 UTC)
- Expired
- May 18, 2007, 5:15 PM CDT
- In force
- 44 min
- Issued by
- NWS Bismarck, ND
- Area
- Counties, with a storm outline in the text
Counties Mountrail County, ND, Ward County, ND
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 18, 3:43 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 12:00Z, 9.5 hours before the alert went out and 215 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
- 362 J/kg
- Mixed-layer CIN
- -435 J/kg
- Mixed-layer LCL
- 1771 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 96 m²/s²
- 0-3 km storm-relative helicity
- 89 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KBIS 182132 SVRBIS NDC061-101-182215- /O.NEW.KBIS.SV.W.0021.070518T2131Z-070518T2215Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BISMARCK ND 431 PM CDT FRI MAY 18 2007 THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHWESTERN WARD COUNTY IN NORTH CENTRAL NORTH DAKOTA... NORTHEASTERN MOUNTRAIL COUNTY IN NORTHWEST NORTH DAKOTA... * UNTIL 515 PM CDT * AT 424 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED 7 MILES SOUTHWEST OF COULEE...OR ABOUT 39 MILES NORTHWEST OF MINOT...AND MOVING EAST AT 15 MPH. THIS IS A CONTINUATION FROM A PREVIOUS WARNING. * THE SEVERE THUNDERSTORM WILL BE NEAR... DONNYBROOK AROUND 445 PM CDT... IN ADDITION TO LARGE HAIL AND HEAVY RAIN...FREQUENT LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY LIGHTNING CAN BE A KILLER. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. LAT...LON 4855 10216 4839 10216 4838 10184 4855 10186 $$ NH
3 follow-up statements
000 WWUS53 KBIS 182150 SVSBIS SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 450 PM CDT FRI MAY 18 2007 NDC061-101-182215- /O.CON.KBIS.SV.W.0021.000000T0000Z-070518T2215Z/ MOUNTRAIL ND-WARD ND- 450 PM CDT FRI MAY 18 2007 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM CDT FOR NORTHWESTERN WARD AND NORTHEASTERN MOUNTRAIL COUNTIES... AT 446 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING LARGE DAMAGING HAIL UP TO GOLF BALL SIZE. THIS STORM WAS LOCATED 6 MILES SOUTH OF COULEE...OR ABOUT 36 MILES NORTHWEST OF MINOT...MOVING EAST AT 15 MPH. THE SEVERE THUNDERSTORM WILL BE NEAR... DONNYBROOK AROUND 500 PM CDT... TORRENTIAL RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED ROADWAY. LAT...LON 4854 10209 4839 10208 4838 10184 4855 10186 $$ NH
000 WWUS53 KBIS 182203 SVSBIS SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 503 PM CDT FRI MAY 18 2007 NDC061-182213- /O.CAN.KBIS.SV.W.0021.000000T0000Z-070518T2215Z/ MOUNTRAIL ND- 503 PM CDT FRI MAY 18 2007 ...THE SEVERE THUNDERSTORM WARNING FOR MOUNTRAIL COUNTY IS CANCELLED... LAT...LON 4855 10197 4839 10197 4838 10184 4855 10186 $$ NDC101-182215- /O.CON.KBIS.SV.W.0021.000000T0000Z-070518T2215Z/ WARD ND- 503 PM CDT FRI MAY 18 2007 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM CDT FOR NORTHWESTERN WARD COUNTY... AT 458 PM CDT...A SEVERE THUNDERSTORM WAS REPORTED CAPABLE OF PRODUCING LARGE DAMAGING HAIL UP TO GOLF BALL SIZE. THIS STORM WAS LOCATED NEAR DONNYBROOK...OR ABOUT 35 MILES NORTHWEST OF MINOT... MOVING EAST AT 15 MPH. THE SEVERE THUNDERSTORM WILL BE NEAR... DONNYBROOK AROUND 505 PM CDT... TORRENTIAL RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED ROADWAY. LAT...LON 4855 10197 4839 10197 4838 10184 4855 10186 $$ NH
000 WWUS53 KBIS 182214 SVSBIS SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 515 PM CDT FRI MAY 18 2007 NDC101-182225- /O.EXP.KBIS.SV.W.0021.000000T0000Z-070518T2215Z/ WARD ND- 515 PM CDT FRI MAY 18 2007 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN WARD COUNTY EXPIRES AT 515 PM CDT... THE SEVERE THUNDERSTORM HAS WEAKENED AND NO LONGER POSES A SIGNIFICANT THREAT. LAT...LON 4855 10197 4839 10197 4838 10184 4855 10186 $$ NH
The office that day
Everything else NWS Bismarck, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 18, 3:41 PM CDT | Severe Thunderstorm Warning | BIS | Mountrail | 49 min |
| May 18, 3:47 PM CDT | Severe Thunderstorm Warning | BIS | Divide | 58 min |
| May 18, 4:21 PM CDT | Severe Thunderstorm Warning | BIS | Renville, Ward | 54 min |
| May 18, 4:44 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, Ward | 46 min |
| May 18, 4:46 PM CDT | Severe Thunderstorm Warning | BIS | Divide | 59 min |
| May 18, 5:05 PM CDT | Severe Thunderstorm Warning | BIS | McKenzie | 55 min |
| May 18, 5:30 PM CDT | Severe Thunderstorm Warning | BIS | Ward | 45 min |
| May 18, 5:35 PM CDT | Severe Thunderstorm Warning | BIS | Ward | 55 min |
| May 18, 5:46 PM CDT | Severe Thunderstorm Warning | BIS | Dunn | 33 min |
| May 18, 5:51 PM CDT | Severe Thunderstorm Warning | BIS | Golden Valley, McKenzie | 39 min |
| May 18, 5:52 PM CDT | Severe Thunderstorm Warning | BIS | Burke | 23 min |
| May 18, 6:03 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Hettinger, Stark | 36 min |
| May 18, 6:06 PM CDT | Severe Thunderstorm Warning | BIS | McKenzie | 39 min |
| May 18, 6:09 PM CDT | Severe Thunderstorm Warning | BIS | McHenry | 66 min |
| May 18, 6:30 PM CDT | Severe Thunderstorm Warning | BIS | Ward | 30 min |
| May 18, 6:47 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Morton | 58 min |
Nearby
Severe Thunderstorm Warnings in North Dakota, 2007Every severe thunderstorm warning in 2007
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.