Alert archive / Michigan / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 32, NWS Grand Rapids, MI

May 16, 2001Kalamazoo County, Michigan

NWS Grand Rapids, MI issued this severe thunderstorm warning at May 16, 2001, 8:00 AM EDT for Kalamazoo County, Michigan. It was in force for 30 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: May 16, 2001, 8:00 AM EDT (12:00 UTC)
Expired: May 16, 2001, 8:30 AM EDT
In force: 30 min
Issued by: NWS Grand Rapids, MI
Area: Whole counties

County Kalamazoo County, MI

The nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 0.0 hours before the alert went out and 180 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 550 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 230 m²/s²
0-3 km storm-relative helicity: 357 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.

429 
WUUS53 KGRR 161201
SVRGRR
MIC077-161230-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
800 AM EDT WED MAY 16 2001

THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  KALAMAZOO COUNTY IN SOUTHWEST MICHIGAN

* UNTIL 830 AM EDT

* AT 759 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER EASTWOOD...MOVING EAST AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
   GALESBURG...SCOTTS...AUGUSTA AROUND 810 AM EDT
   CLIMAX AROUND 820 AM EDT

LARGE HAIL AND HEAVY RAIN ARE EXPECTED FROM THIS STORM. SEEK SHELTER 
IN A STURDY STRUCTURE UNTIL THE STORM HAS PASSED.

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 May 16, 5:08 AM EDT, 2 hours 52 minutes earlier.

Area forecast discussion, May 16, 5:08 AM EDT, 2 hours 52 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
508 AM EDT THU MAY 16 2001

...DENSE FOG ADVISORY EXPANDED TO COVER THE ENTIRE CWA...

THE 400 AM OBSERVATIONS SHOW THE FOG CONTINUED TO INCREASE IN
COVERAGE AREA. THERE IS LITTLE IN THE WAY OF THICK CLOUDINESS ON TOP
OF THE FOG LAYER... AND WINDS ARE LIGHT. SO NO REASON TO BELIEVE THE
FOG WILL MIX OUT BEFORE MID MORNING. THUS I HAVE EXPANDED THE DENSE
FOG ADVISORY TO COVER THE ENTIRE CWA.

.GRR...DENSE FOG ADVISORY THRU 10 AM...ENTIRE COUNTY WARNING AREA
       FLOOD WARNING THRU 10 AM:
       NEWAYGO...ISABELLA...MUSKEGON...MONTCALM...GRATIOT...KENT...
       CLINTON...BARRY AND INGHAM COUNTIES.

WDM

In the hours before

Special weather statement, May 16, 5:20 AM EDT, 2 hours 40 minutes before

MIZ037>040-043>046-050>052-056>059-064>067-071>074-171100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
520 AM EDT WED MAY 16 2001

...HAZARDOUS WEATHER POTENTIAL STATEMENT FOR THE SOUTHWEST QUARTER OF
LOWER MICHIGAN FOR THIS AFTERNOON AND TONIGHT...

DISPATCHERS...PLEASE PASS ALONG THIS INFORMATION TO YOUR EMERGENCY
MANAGERS. SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON AND
TONIGHT.

HAZARDS...FLOODING OF SMALL STREAMS AND CREEKS WILL CONTINUE TODAY
ACROSS SOUTHWEST LOWER MICHIGAN.

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS TODAY MAINLY SOUTH OF
A MUSKEGON TO MOUNT PLEASANT LINE. THE PRIMARY THREAT WILL BE DIME
SIZE HAIL OR LARGER. ISOLATED DAMAGING WINDS WILL BE POSSIBLE AS
WELL.

DISCUSSION...LOW PRESSURE IN WISCONSIN WILL MOVE EAST AND PUSH A
WARM FRONT THROUGH SOUTHWEST LOWER MICHIGAN TODAY. CLEARING SKIES
BEHIND THIS MORNINGS THUNDERSTORMS WILL ALLOW SOME SUNSHINE TO
FILTER THROUGH. THIS WILL ACT TO DESTABILIZE THE ATMOSPHERE THIS
AFTERNOON. AS THE TRAILING COLD FRONT MOVES INTO LOWER MICHIGAN
LATER THIS AFTERNOON... MORE THUNDERSTORMS ARE EXPECTED TO DEVELOP
ALONG AND AHEAD OF THE FRONT.

...HAZARDOUS WEATHER POTENTIAL OUTLOOK FOR THURSDAY THROUGH
SUNDAY...

NO HAZARDOUS WEATHER IS EXPECTED.

The office that day

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

Issued	Product	Office	Counties	Lasted
May 15, 8:52 PM EDT	Flash Flood Warning	GRR	Clare	3 hr
May 15, 10:25 PM EDT	Severe Thunderstorm Warning	GRR	Eaton	50 min
May 15, 11:00 PM EDT	Flash Flood Warning	GRR	Clare	6 hr
May 16, 12:34 AM EDT	Flash Flood Warning	GRR	Clinton, Gratiot, Isabella, Mecosta, Montcalm, Osceola	4 hr
May 16, 1:36 AM EDT	Flash Flood Warning	GRR	Barry, Mason, Muskegon, Newaygo, Oceana	3 hr
May 16, 1:52 AM EDT	Flash Flood Warning	GRR	Ingham	3 hr
May 16, 4:00 AM EDT	Flash Flood Warning	GRR	Barry, Clare, Clinton, Eaton, Gratiot, Ingham and 8 more	6 hr
May 16, 6:57 AM EDT	Severe Thunderstorm Warning	GRR	Van Buren	63 min

Nearby

Severe Thunderstorm Warnings in Michigan, 2001 Every severe thunderstorm warning in 2001

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.