Alert archive / Michigan / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 40, NWS Grand Rapids, MI

June 25, 2013Jackson County, Michigan

NWS Grand Rapids, MI issued this severe thunderstorm warning at Jun 25, 2013, 10:31 PM EDT for Jackson County, Michigan. It was in force for 29 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 25, 2013, 10:31 PM EDT (02:31 UTC)
Expired
Jun 25, 2013, 11:00 PM EDT
In force
29 min
Issued by
NWS Grand Rapids, MI
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Jackson County, MI

The radar

The Detroit radar (KDTX), 93 km from the middle of the area, began a volume at 02:31 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 25, 6:38 PM EDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 00:00Z, 2.5 hours before the alert went out and 97 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, Detroit, MI at 00:00Z on 2013-06-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 704 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, Detroit, MI at 00:00Z on 2013-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 38 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
704 J/kg
Mixed-layer CIN
-24 J/kg
Mixed-layer LCL
948 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
38 m²/s²
0-3 km storm-relative helicity
97 m²/s²
Significant tornado parameter
0.3
Supercell composite
3.0

Open this sounding in Storm Lab

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 Grand Rapids, MI wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 25, 7:35 PM EDT, 2 hours 56 minutes earlier.

Area forecast discussion, Jun 25, 7:35 PM EDT, 2 hours 56 minutes before
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Hazardous weather outlook, Jun 25, 7:35 PM EDT, 2 hours 56 minutes before
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In the hours before

Special weather statement, Jun 25, 5:53 PM EDT, 4 hours 38 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
553 PM EDT TUE JUN 25 2013

MIZ072-252245-
KALAMAZOO-
553 PM EDT TUE JUN 25 2013

...SIGNIFICANT WEATHER ADVISORY...

AT 546 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE FROM NEAR PORTAGE SOUTHWEST INTO
TEXAS AND PRAIRIE RONDE TOWNSHIPS IN THE SOUTHWEST CORNER OF
KALAMAZOO COUNTY...MOVING EAST AT 25 MPH.

NICKEL SIZE HAIL...WIND GUSTS GREATER THAN 50 MPH...FREQUENT CLOUD TO
GROUND LIGHTNING AND TORRENTIAL DOWNPOURS ARE ALL POSSIBLE WITH THESE
STORMS.

LOCATIONS IMPACTED INCLUDE...
  GALESBURG...          FULTON...             CLIMAX...
  SCHOOLCRAFT...        VICKSBURG...          PORTAGE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

GUSTY WINDS MAY CAUSE SMALL BRANCHES TO BE BLOWN DOWN...AND LOOSE
OBJECTS TO BLOW AROUND. STAY AWAY FROM HIGH OBJECTS OUTDOORS SUCH AS
TREES. SEEK SHELTER IN A STURDY STRUCTURE UNTIL THIS STORM HAS
PASSED.

&&

LAT...LON 4207 8576 4220 8577 4232 8530 4207 8529
TIME...MOT...LOC 2149Z 257DEG 24KT 4217 8557

DUKE
Special weather statement, Jun 25, 6:36 PM EDT, 3 hours 55 minutes before
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Local storm report, Jun 25, 6:48 PM EDT, 3 hours 43 minutes before
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Local storm report, Jun 25, 6:50 PM EDT, 3 hours 41 minutes before
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Special weather statement, Jun 25, 7:56 PM EDT, 2 hours 35 minutes before
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The office that day

Everything else NWS Grand Rapids, MI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 26, 2:49 AM EDTAreal Flood AdvisoryGRRAllegan, Calhoun, Kalamazoo, Van Buren8 hr
Jun 26, 10:22 AM EDTRiver Flood AdvisoryGRRKalamazoo4 hr
Jun 26, 1:54 PM EDTRiver Flood WarningGRRKalamazoo70 hr
Jun 26, 7:20 PM EDTAreal Flood AdvisoryGRRLake, Mecosta, Montcalm, Newaygo, Osceola24 hr

Nearby

Severe Thunderstorm Warnings in Michigan, 2013Every severe thunderstorm warning in 2013

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.