Alert archive / Minnesota / Mesoscale Discussions in 2003

Mesoscale Discussion 1837

July 14, 200315 counties in Minnesota; 7 counties in North Dakota

The Storm Prediction Center issued this mesoscale discussion at Jul 14, 2003, 3:50 PM CDT for 15 counties in Minnesota; 7 counties in North Dakota. It was in force for 85 min.

The area

The outline as issued.

The facts

Issued
Jul 14, 2003, 3:50 PM CDT (20:50 UTC)
Expired
Jul 14, 2003, 5:15 PM CDT
In force
85 min
Issued by
the Storm Prediction Center
All 22 counties

Beltrami County, MN, Cass County, MN, Clearwater County, MN, Hubbard County, MN, Itasca County, MN, Kittson County, MN, Koochiching County, MN, Lake of the Woods County, MN, Mahnomen County, MN, Marshall County, MN, Norman County, MN, Pennington County, MN, Polk County, MN, Red Lake County, MN, Roseau County, MN, Grand Forks County, ND, Griggs County, ND, Nelson County, ND, Pembina County, ND, Steele County, ND, Traill County, ND, Walsh County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 115 km from the middle of the area, began a volume at 20:50 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

International Fa, MN (KINL), launched 12:00Z, 8.8 hours before the alert went out and 217 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, International Fa, MN at 12:00Z on 2003-07-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 93 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, International Fa, MN at 12:00Z on 2003-07-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 43 square meters per square second.193958Sfc1 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
93 J/kg
Mixed-layer CIN
-353 J/kg
Mixed-layer LCL
1491 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
43 m²/s²
0-3 km storm-relative helicity
116 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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
Jul 13, 9:40 PM CDTSevere Thunderstorm WatchSPCBecker, Beltrami, Clay, Clearwater, Douglas, Grant and 9 more5 hr
Jul 13, 11:02 PM CDTMesoscale DiscussionSPCBecker, Clay, Hubbard, Mahnomen, Norman, Otter Tail and 2 more58 min
Jul 14, 9:58 AM CDTMesoscale DiscussionSPCAnoka, Blue Earth, Brown, Carver, Chisago, Cottonwood and 32 more62 min
Jul 14, 1:52 PM CDTMesoscale DiscussionSPCJackson, Murray, Nobles, Pipestone, Rock113 min
Jul 14, 2:10 PM CDTMesoscale DiscussionSPCBecker, Beltrami, Clearwater, Hubbard, Itasca, Kittson and 9 more65 min
Jul 14, 2:35 PM CDTTornado WatchSPCBeltrami, Cass, Clearwater, Hubbard, Itasca, Kittson and 9 more5 hr
Jul 14, 3:45 PM CDTTornado WatchSPCBlue Earth, Cottonwood, Jackson, Martin, Murray, Nobles and 3 more6 hr
Jul 14, 3:57 PM CDTMesoscale DiscussionSPCAitkin, Benton, Big Stone, Crow Wing, Douglas, Grant and 9 more2 hr
Jul 14, 5:05 PM CDTMesoscale DiscussionSPCAitkin, Anoka, Benton, Blue Earth, Brown, Carlton and 37 more55 min
Jul 14, 5:25 PM CDTTornado WatchSPCAitkin, Anoka, Benton, Brown, Carlton, Carver and 36 more5 hr
Jul 14, 5:35 PM CDTTornado WatchSPCCook, Lake, Saint Louis4 hr
Jul 14, 5:55 PM CDTMesoscale DiscussionSPCItasca2 hr
Jul 14, 6:49 PM CDTMesoscale DiscussionSPCBlue Earth, Brown, Jackson, Martin, Nicollet, Watonwan116 min
Jul 13, 8:44 PM CDTMesoscale DiscussionSPCBurke, Divide, McKenzie, Mountrail, Renville, Ward and 1 more1 min
Jul 14, 3:48 AM CDTMesoscale DiscussionSPCBarnes, Benson, Burleigh, Cass, Dickey, Eddy and 20 more57 min

Nearby

Mesoscale Discussions in Minnesota, 2003Mesoscale Discussions in North Dakota, 2003Every mesoscale discussion in 2003

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.