Alert archive / North Dakota / Mesoscale Discussions in 2008

Mesoscale Discussion 1015

May 24, 200815 counties in Minnesota; 31 counties in North Dakota

The Storm Prediction Center issued this mesoscale discussion at May 24, 2008, 9:26 PM CDT for 15 counties in Minnesota; 31 counties in North Dakota. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
May 24, 2008, 9:26 PM CDT (02:26 UTC)
Expired
May 24, 2008, 11:30 PM CDT
In force
2 hr
Issued by
the Storm Prediction Center
All 46 counties

Becker County, MN, Clay County, MN, Clearwater County, MN, Douglas County, MN, Grant County, MN, Kittson County, MN, Mahnomen County, MN, Marshall County, MN, Norman County, MN, Otter Tail County, MN, Pennington County, MN, Polk County, MN, Red Lake County, MN, Roseau County, MN, Wilkin County, MN, Barnes County, ND, Burleigh County, ND, Cass County, ND, Cavalier County, ND, Dickey County, ND, Eddy County, ND, Emmons County, ND, Foster County, ND, Grand Forks County, ND, Griggs County, ND, Kidder County, ND, LaMoure County, ND, Logan County, ND, McIntosh County, ND, McLean County, ND, Mercer County, ND, Morton County, ND, Nelson County, ND, Oliver County, ND, Pembina County, ND, Ramsey County, ND, Ransom County, ND, Richland County, ND, Sargent County, ND, Sheridan County, ND, Sioux County, ND, Steele County, ND, Stutsman County, ND, Traill County, ND, Walsh County, ND, Wells County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 68 km from the middle of the area, began a volume at 02:26 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, 2.4 hours before the alert went out and 222 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.

Skew-T log-pSkew-T log-p diagram, Bismarck Municip, ND at 00:00Z on 2008-05-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 145 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Bismarck Municip, ND at 00:00Z on 2008-05-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 155 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
145 J/kg
Mixed-layer CIN
-45 J/kg
Mixed-layer LCL
672 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
155 m²/s²
0-3 km storm-relative helicity
180 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.3

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 24, 8:07 PM CDTTornado WatchSPCBecker, Clay, Grant, Kittson, Mahnomen, Marshall and 7 more3 hr
May 24, 9:01 PM CDTMesoscale DiscussionSPCBig Stone, Brown, Chippewa, Cottonwood, Jackson, Kandiyohi and 18 more59 min
May 25, 9:56 AM CDTMesoscale DiscussionSPCBenton, Carlton, Cook, Isanti, Kanabec, Mille Lacs and 4 more94 min
May 25, 12:43 PM CDTMesoscale DiscussionSPCAnoka, Benton, Blue Earth, Brown, Carver, Chisago and 33 more92 min
May 25, 2:04 PM CDTTornado Watch PDSSPCAnoka, Blue Earth, Brown, Carver, Chisago, Dakota and 29 more6 hr
May 25, 2:25 PM CDTMesoscale DiscussionSPCAitkin, Beltrami, Carlton, Cass, Crow Wing, Hubbard and 10 more35 min
May 25, 2:45 PM CDTTornado WatchSPCAitkin, Beltrami, Benton, Carlton, Cass, Cook and 14 more6 hr
May 25, 6:01 PM CDTMesoscale DiscussionSPCAitkin, Anoka, Benton, Carlton, Carver, Cass and 20 more59 min

Nearby

Mesoscale Discussions in North Dakota, 2008Mesoscale Discussions in Minnesota, 2008Every mesoscale discussion in 2008

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.