Alert archive / Michigan / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 2, NWS Gaylord, MI

February 11, 1999Kalkaska County, Missaukee County, Michigan

NWS Gaylord, MI issued this severe thunderstorm warning at Feb 11, 1999, 6:30 PM EST for Kalkaska County, Missaukee County, Michigan. It was in force for 45 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: Feb 11, 1999, 6:30 PM EST (23:30 UTC)
Expired: Feb 11, 1999, 7:15 PM EST
In force: 45 min
Issued by: NWS Gaylord, MI
Area: Whole counties

Counties Kalkaska County, MI, Missaukee County, MI

The radar

The NCL Michigan radar (KAPX), 53 km from the middle of the area, began a volume at 23:32 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.

Issued	Product	Office	Lasted
Feb 11, 5:45 PM EST	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Alpena, MI (KAPX), launched 12:00Z, 11.5 hours before the alert went out and 221 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: 618 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 461 m²/s²
0-3 km storm-relative helicity: 429 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.

000 
TTAA00 KAPN 112333
SVRAPN
MIC079-113-120015-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GAYLORD MI
630 PM EST THU FEB 11 1999

THE NATIONAL WEATHER SERVICE IN GAYLORD HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  KALKASKA COUNTY IN NORTHWESTERN LOWER MICHIGAN
  MISSAUKEE COUNTY IN NORTHWESTERN LOWER MICHIGAN
  
* UNTIL 715 PM EST

* AT 628 PM EST... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  AN AREA OF SEVERE THUNDERSTORMS 13 MILES SOUTHWEST OF SHARON...
  MOVING NORTHEAST AT 55 MPH.

* THE SEVERE THUNDERSTORMS WILL REACH...
  SOUTH BOARDMAN BY 639 PM EST
  SHARON BY 641 PM EST
  BARKER CREEK BY 645 PM EST
  KALKASKA BY 647 PM EST
  LAKE CITY BY 647 PM EST

PERSONS IN AND NEAR THESE AREAS SHOULD REMAIN INDOORS AWAY FROM
WINDOWS UNTIL THE STORM HAS PASSED. THESE STORMS HAVE A HISTORY OF
PROUDING WIND GUSTS TO 65 MPH.  SEEK SHELTER IN THE LOWEST FLOOR OF
YOUR HOME OR BUILDING. STAY AWAY FROM< WINDOWS.

BORIS

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 Gaylord, MI wrote its last area forecast discussion before this severe thunderstorm warning went out at Feb 11, 2:35 PM EST, 3 hours 55 minutes earlier.

Area forecast discussion, Feb 11, 2:35 PM EST, 3 hours 55 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GAYLORD MI
235 PM EST THU FEB 11 1999

AREAS OF DENSE FOG HAVE BEEN FORMING AS DEWPOINTS IN THE UPPER 40S AND
LOWER 50S ARE BEING ADVECTED OVER THE SNOWPACK ACROSS NORTHERN LOWER.
AREAS OF FOG...LOCALLY DENSE...WILL PERSIST THROUGH THE REST OF THE
AFTERNOON. WILL UPDATE ALL ZONES TO INCLUDE AREAS OF FOG...LOCALLY
DENSE.

NORCROSS

In the hours before

Special weather statement, Feb 11, 5:15 PM EST, 1 hour 15 minutes before

MIZ025>036-041-042-120400-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GAYLORD MI
515 PM EST THU FEB 11 1999

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WATCH
IN EFFECT UNTIL 1100 PM EST THURSDAY FOR THE FOLLOWING COUNTIES:

IN MICHIGAN:

ALCONA             ARENAC             BENZIE
CRAWFORD           GLADWIN            GRAND TRAVERSE
IOSCO              KALKASKA           MANISTEE
MISSAUKEE          OGEMAW             OSCODA
ROSCOMMON          WEXFORD

A STRONG COLD FRONT WILL CROSS THE REGION THIS EVENING. THE
COMBINATION OF INCREASED MOISTURE AND DYNAMICS WILL MAKE
THUNDERSTORMS POSSIBLE ACROSS ALL OF NORTHERN LOWER MICHIGAN THIS
EVENING...HOWEVER THE STRONGEST THUNDERSTORMS WILL BE MAINLY SOUTH
OF M-72.

THUNDERSTORMS IN THE WATCH AREA MAY BE ACCOMPANIED BY WIND GUSTS UP
TO 60 MPH AND BRIEF HEAVY DOWNPOURS. ALL THUNDERST0RMS CONTAIN
DEADLY LIGHTNING.

STAY TUNED TO NOAA WEATHER RAD~IO...OR YOUR LOCAL MEDIA OUTLETS...FOR
THE LATEST WEATHER INFORMATION.

HOLGUIN

Special weather statement, Feb 11, 5:50 PM EST, 40 minutes before

MIZ008-015>036-041-042-110400-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GAYLORD MI
550 PM EST THU FEB 11 1999

...SEVERE WEATHER POTENTIAL STATEMENT FOR NORTHERN LOWER AND EASTERN
UPPER MICHIGAN....

DISPATCHERS PLEASE NOTIFY YOUR EMERGENCY MANAGERS IMMEDIATELY.

SCATTERED THUNDERSTORMS ARE EXPECTED OVER ALL OF NORTHERN LOWER
MICHIGAN THIS EVENING. THERE IS A SLIGHT RISK THAT SOME OF THE STORMS
WILL BECOME SEVERE. A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR
AREAS ALONG AND SOUTH OF M-72 THROUGH 1100 PM TONIGHT.

THE THUNDERSTORMS WILL MOVE EAST AT 45 MPH OVER LAKE MICHIGAN AND WILL
AFFECT AREAS BETWEEN I-75 AND THE LAKE MICHIGAN SHORELINE THROUGH 900
PM. THE THUNDERSTORMS ARE EXPECTED TO AFFECT AREAS EAST OF I-75 BETWEEN
800 PM AND 1100 PM TONIGHT.

SOME OF THE THUNDERSTORMS WILL PRODUCE WIND GUSTS TO 60 MPH AND
HEAVY DOWNPOURS. ALL THUNDERSTORMS CONTAIN DEADLY LIGHTNING.

STAY TUNED TO NOAA WEATHER RADIO...OR YOUR LOCAL MEDIA OUTLETS FOR THE
LATEST WEATHER INFORMATION.

SWR

Local storm report, Feb 11, 6:11 PM EST, 19 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GAYLORD MI
611 PM EST THU FEB 11 1999

TIME(EST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0609 PM    WELLSTON                  MI   61 MPH TSTM GUST
02/11/99   MANISTEE

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 11, 6:11 PM EST	Severe Thunderstorm Warning	APX	Grand Traverse, Wexford	49 min

Nearby

Severe Thunderstorm Warnings in Michigan, 1999 Every severe thunderstorm warning in 1999

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.