Alert archive / North Dakota / Mesoscale Discussions in 2005
Mesoscale Discussion 2003
The Storm Prediction Center issued this mesoscale discussion at Aug 16, 2005, 11:35 PM CDT for 21 counties in North Dakota. It was in force for 55 min.
The area
The outline as issued.
The facts
- Issued
- Aug 16, 2005, 11:35 PM CDT (04:35 UTC)
- Expired
- Aug 17, 2005, 12:30 AM CDT
- In force
- 55 min
- Issued by
- the Storm Prediction Center
All 21 counties
Barnes County, ND, Benson County, ND, Burleigh County, ND, Dunn County, ND, Eddy County, ND, Foster County, ND, Griggs County, ND, Kidder County, ND, McHenry County, ND, McLean County, ND, Mercer County, ND, Mountrail County, ND, Nelson County, ND, Oliver County, ND, Pierce County, ND, Ramsey County, ND, Sheridan County, ND, Steele County, ND, Stutsman County, ND, Ward County, ND, Wells County, ND
The radar
The Bismarck radar (KBIS), 92 km from the middle of the area, began a volume at 04:37 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.
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 00:00Z, 4.6 hours before the alert went out and 91 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
- 700 J/kg
- Mixed-layer CIN
- -59 J/kg
- Mixed-layer LCL
- 1373 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 12 m²/s²
- 0-3 km storm-relative helicity
- 198 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 ACUS11 KWNS 170436 SWOMCD SPC MCD 170435 NDZ000-170530- MESOSCALE DISCUSSION 2003 NWS STORM PREDICTION CENTER NORMAN OK 1135 PM CDT TUE AUG 16 2005 AREAS AFFECTED...ND CONCERNING...SEVERE THUNDERSTORM WATCH 726... VALID 170435Z - 170530Z REMAINING VALID PORTION OF WW 726 WILL BE ALLOWED TO EXPIRE...BUT TRENDS WILL CONTINUE TO BE MONITORED OVERNIGHT FOR POSSIBILITY OF INCREASING SEVERE THREAT. A COUPLE OF STRONG CELLS PERSIST WITHIN CONVECTIVE CLUSTER DEVELOPING EASTWARD WITH UPPER FORCING ACROSS WESTERN NORTH DAKOTA. HOWEVER...LACK OF BETTER ORGANIZATION SUGGESTS SHORT TERM SEVERE THREAT MAY BE LIMITED TO ISOLATED MARGINALLY SEVERE HAIL. LOW-LEVEL JET HAS BEEN SLOW TO STRENGTHEN...BUT AS IT DOES...POTENTIAL STILL EXISTS FOR EVOLUTION OF A STRONGER...MORE ORGANIZED MESOSCALE CONVECTIVE SYSTEM NORTH/NORTHEAST OF BISMARCK INTO THE DEVILS LAKE AREA THROUGH 06-09Z. DEEPER INTO NORTH CENTRAL/NORTHEASTERN NORTH DAKOTA...COOL/DRY BOUNDARY LAYER MAY MINIMIZE DAMAGING WIND POTENTIAL. ..KERR.. 08/17/2005 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...FGF...BIS... 48250259 48530110 48519885 47669759 46919762 46709831 46889991 46990070 47050184 47360271
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 16, 7:26 PM CDT | Mesoscale Discussion | SPC | Billings, Golden Valley | 94 min |
| Aug 16, 10:23 PM CDT | Mesoscale Discussion | SPC | Benson, Billings, Bottineau, Burke, Burleigh, Divide and 22 more | 2 hr |
| Aug 17, 1:03 PM CDT | Mesoscale Discussion | SPC | Barnes, Burleigh, Cass, Dickey, Emmons, Foster and 14 more | 87 min |
| Aug 17, 1:35 PM CDT | Severe Thunderstorm Watch | SPC | Barnes, Cass, Dickey, Emmons, Grant, Kidder and 10 more | 8 hr |
| Aug 17, 5:18 PM CDT | Mesoscale Discussion | SPC | Barnes, Cass, Dickey, Emmons, Griggs, Kidder and 10 more | 117 min |
Nearby
Mesoscale Discussions in North Dakota, 2005Every mesoscale discussion in 2005
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; radar from the NEXRAD Level II archive.