Alert archive / Michigan / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 56, NWS Gaylord, MI

August 9, 2001Gladwin County, Michigan

NWS Gaylord, MI issued this severe thunderstorm warning at Aug 9, 2001, 6:30 PM EDT for Gladwin County, Michigan. It was in force for 60 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Aug 9, 2001, 6:30 PM EDT (22:30 UTC)
Expired: Aug 9, 2001, 7:30 PM EDT
In force: 60 min
Issued by: NWS Gaylord, MI
Area: Whole counties

County Gladwin County, MI

What was reported inside it

Time	Report	Where	Remark
Aug 9, 7:02 PM EDT	Thunderstorm Wind 50 E	Beaverton, MI	Trees down.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

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

Issued	Product	Office	Lasted
Aug 9, 4:45 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 10.5 hours before the alert went out and 161 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: 1074 J/kg
Mixed-layer CIN: -57 J/kg
Mixed-layer LCL: 1070 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 34 m²/s²
0-3 km storm-relative helicity: 35 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.6

Open this sounding in Storm Lab

The text

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

611 
WUUS53 KAPX 092229
SVRAPN
MIC051-092330-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GAYLORD MI
630 PM EDT THU AUG 9 2001

THE NATIONAL WEATHER SERVICE IN GAYLORD HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  GLADWIN COUNTY IN NORTHERN LOWER MICHIGAN

* UNTIL 730 PM EDT

* AT 625 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
  A LINE OF SEVERE THUNDERSTORMS FROM 16 MILES SOUTH OF HOUGHTON 
  LAKE TO 18 MILES WEST OF CLARE...MOVING EAST AT 45 MPH.

* THE SEVERE THUNDERSTORMS WILL REACH...
  GLADWIN AROUND 650 PM EDT
  BEAVERTON...WOODEN SHOE VILLAGE AROUND 655 PM EDT
  WINEGARS AROUND 700 PM EDT
  RHODES AROUND 710 PM EDT

REMAIN INDOORS AWAY FROM WINDOWS UNTIL THESE STORMS HAVE PASSED. 
THESE STORMS ARE CAPABLE OF PRODUCING WIND GUSTS BETWEEN 60 AND 70 
MPH. WINDS THIS HIGH CAN DOWN TREES AND POWER LINES.

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A STRONG
BUILDING. DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...AND
LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS. STAY INSIDE AWAY
FROM WINDOWS 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 Gaylord, MI wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 9, 4:35 PM EDT, 1 hour 55 minutes earlier.

Area forecast discussion, Aug 9, 4:35 PM EDT, 1 hour 55 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GAYLORD MI
435 PM EDT WED AUG 8 2001

ONGOING SEVERE WEATHER ACROSS THE REGION IS THE PRIMARY SHORT-TERM
FOCUS. SQUALL-LINE CONVECTION CONTINUES TO BLOSSOM ACROSS ERN
UPR/NRN LWR MI...WITH SVR TSTM WATCHES IN EFFECT ACROSS THE ENTIRE
REGION THIS EVENING. INSTABILITY WILL REMAIN HIGH AHEAD OF THE
FRONT...WITH 3000-3500 J/KG STILL PRESENT EARLY THIS
EVENING. VERTICAL WIND SHEAR PROFILES REMAIN UNIDIRECTIONAL...WITH
700/500 MB WINDS INCREASING TO 40KTS (COINCIDING WITH DRY AIR
ADVECTION). PARAMETERS CONTINUE TO SUPPORT BOWING SEGMENTS WITH
(THUS) DAMAGING STRAIGHT-LINE WINDS AS THE MAIN SEVERE WEATHER
THREAT.

FOLLOWING THE CONVECTION THIS EVENING...ETA/AVN AGAIN REMAIN IN GOOD
ACCORD WITH RESPECT TO TIMING THE FRONT EAST OF THE REGION. HAVE
CONTINUED WITH THE DECREASING CLOUDS/COOLER TEMPS OVERNIGHT. DO NOT
ANTICIPATE FOG TO BE MUCH OF A THREAT (EVEN IN ERN COUNTIES...WHERE
THE RAIN/FRONT WILL PASS THROUGH LAST)...AS THE DEGREE OF COLD
ADVECTION AT LOW LEVELS (THROUGH 800 MB) MAINTAINS A WELL-MIXED
BOUNDARY LAYER WHICH WOULD SUPPORT DRIER AIR WORKING INTO THE
SURFACE LAYER.

FORECAST FOR FRI/SAT BASICALLY REMAINS UNCHANGED...WITH DRY WEATHER/
SEASONABLE TEMPS TO DOMINATE AS HIGH PRESSURE BUILDS IN FROM THE
WEST.

EXTENDED DISCUSSION...MRF CONTINUES TO TREND THE HUDSON BAY UPPER
LOW FARTHER NORTH SUNDAY...WITH A MORE ZONAL PATTERN (WEAKER TROUGH)
ACROSS MI SOUTH OF THE LOW. ECMWF AND CANADIAN RUNS SHOW SIMILAR
PROJECTIONS. FOR NOW WILL CONTINUE WITH THE CHANCE OF SHOWERS ON
SUNDAY...ALBEIT THE PROSPECTS AT THIS POINT APPEARS RATHER SLIM
(BOTH AREAL/TEMPORAL COVERAGE LOW) GIVEN THE LACK OF DYNAMICAL
FORCING/FRONTAL CONVERGENCE. OTHERWISE...HIGH PRESSURE/SEASONABLE
TEMPS WILL AGAIN ESTABLISH BEHIND THE WEAK FRONT MON AND TUE (THOUGH
WITH TEMPS NOT AS COOL AS WITH PRIOR PROJECTIONS WITH THE UPPER LOW/
COLD CORE NOW DEPICTED FARTHER NORTH). RETURN S/SW FLOW BEHIND THE
HIGH WILL ALLOW FOR A LITTLE WARMER CONDITIONS ON WED...WITH THE
NEXT SHORTWAVE TROUGH (CHANCE OF RAIN) SLATED TO MOVE THROUGH ON
THU/FRI PER THE MRF.

.APX...NONE.

HURLEY

In the hours before

Special weather statement, Aug 9, 1:25 PM EDT, 5 hours 5 minutes before

MIZ008-015>029-031>034-100100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GAYLORD MI
125 PM EDT THU AUG 9 2001

THE STORM PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH
FOR MUCH OF NORTHERN LOWER AND EASTERN UPPER MICHIGAN EFFECTIVE
UNTIL 900 PM EDT THURSDAY EVENING. THIS WATCH INCLUDES THE FOLLOWING
COUNTIES

IN NORTHERN LOWER MICHIGAN
     OSCODA...OTSEGO...LEELANAU...EMMET...ROSCOMMON...WEXFORD...GRAND
     TRAVERSE...CRAWFORD...MONTMORENCY...PRESQUE ISLE...MISSAUKEE...
     KALKASKA...ANTRIM...MANISTEE...ALPENA...CHEBOYGAN...CHARLEVOIX
     AND BENZIE

IN EASTERN UPPER MICHIGAN
     MACKINAC AND CHIPPEWA

THIS WATCH INCLUDES THE ADJOINING COASTAL WATERS OF AFFECTED
LAKESHORE COUNTIES.

A SEVERE THUNDERSTORM WATCH MEANS THAT CONDITIONS ARE FAVORABLE FOR
THE DEVELOPMENT OF SEVERE THUNDERSTORMS IN AND NEAR THE WATCH AREA.

REMEMBER...SEVERE THUNDERSTORMS ARE CAPABLE OF WIND GUSTS OF AT LEAST
60 MPH ALONG WITH DIME SIZED HAIL. IF YOU LIVE IN OR NEAR THE WATCH
AREA...YOU SHOULD REMAIN ALERT TO RAPIDLY CHANGING WEATHER
CONDITIONS. STAY TUNED TO NOAA WEATHER RADIO OR LOCAL TELEVISION OR
RADIO STATIONS FOR FURTHER UPDATES AND POSSIBLE WARNINGS.

Special weather statement, Aug 9, 4:25 PM EDT, 2 hours 5 minutes before

MIZ030-035-036-041-042-100300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GAYLORD MI
425 PM EDT THU AUG 9 2001

THE STORM PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH
FOR PORTIONS OF NORTHERN MICHIGAN EFFECTIVE UNTIL 1100 PM EDT
THURSDAY EVENING. THIS WATCH INCLUDES THE FOLLOWING COUNTIES

IN NORTHERN LOWER MICHIGAN
     GLADWIN...OGEMAW...IOSCO...ALCONA AND ARENAC

THIS WATCH INCLUDES THE ADJOINING COASTAL WATERS OF AFFECTED
LAKESHORE COUNTIES.

A SEVERE THUNDERSTORM WATCH MEANS THAT CONDITIONS ARE FAVORABLE FOR
THE DEVELOPMENT OF SEVERE THUNDERSTORMS IN AND NEAR THE WATCH AREA.

REMEMBER...SEVERE THUNDERSTORMS ARE CAPABLE OF WIND GUSTS OF AT LEAST
60 MPH ALONG WITH DIME SIZED HAIL. IF YOU LIVE IN OR NEAR THE WATCH
AREA...YOU SHOULD REMAIN ALERT TO RAPIDLY CHANGING WEATHER
CONDITIONS. STAY TUNED TO NOAA WEATHER RADIO OR LOCAL TELEVISION OR
RADIO STATIONS FOR FURTHER UPDATES AND POSSIBLE WARNINGS.

Local storm report, Aug 9, 5:53 PM EDT, 37 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GAYLORD MI
553 PM EDT THU AUG 09 2001

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

0440 PM    PARKDALE                  MI   WIND DAMAGE
08/09/01   MANISTEE                       TREES AND POWER LINES
                                          DOWN. REPORTED BY STORM
                                          SPOTTER.

0505 PM    KEWADIN                   MI   60 MPH TSTM GUST
08/09/01   ANTRIM                         REPORTED BY STORM
                                          SPOTTER.

0510 PM    NORTHPORT                 MI   WIND DAMAGE
08/09/01   LEELANAU                       TREES DOWN. REPORTED BY
                                          STORM SPOTTER.

0515 PM    ELK RAPIDS                MI   WIND DAMAGE
08/09/01   ANTRIM                         6 DIAMETER LIMBS DOWN

0530 PM    9 S GRAYLING              MI   .75 INCH HAIL
08/09/01   CRAWFORD

0530 PM    9 S GRAYLING              MI   WIND DAMAGE
08/09/01   CRAWFORD                       TREES DOWN

HURLEY

Local storm report, Aug 9, 5:57 PM EDT, 33 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GAYLORD MI
557 PM EDT THU AUG 09 2001

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

0525 PM    KALKASKA                  MI   WIND DAMAGE
08/09/01   KALKASKA                       TREES AND POWER LINES
                                          DOWN. REPORTED BY MEDIA.

Local storm report, Aug 9, 6:19 PM EDT, 11 minutes before

PRELIMINARY LOCAL STORM REPORT...EVENT SUMMARY.
NATIONAL WEATHER SERVICE GAYLORD MI
619 EDT THU AUG 09 2001

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

0440 PM    PARKDALE                  MI   WIND DAMAGE
08/09/01   MANISTEE                       TREES AND POWER LINES
                                          DOWN. REPORTED BY STORM
                                          SPOTTER.

0505 PM    KEWADIN                   MI   60 MPH TSTM GUST
08/09/01   ANTRIM                         REPORTED BY STORM
                                          SPOTTER.

0505 PM    TRAVERSE CITY             MI   WIND DAMAGE
08/09/01   GRAND TRAVERSE                 TREES AND POWER LINES
                                          DOWN. REPORTED BY MEDIA.

0510 PM    NORTHPORT                 MI   WIND DAMAGE
08/09/01   LEELANAU                       TREES DOWN. REPORTED BY
                                          STORM SPOTTER.

0515 PM    ELK RAPIDS                MI   WIND DAMAGE
08/09/01   ANTRIM                         6 DIAMETER LIMBS DOWN

0525 PM    KALKASKA                  MI   WIND DAMAGE
08/09/01   KALKASKA                       TREES AND POWER LINES
                                          DOWN. REPORTED BY MEDIA.

0530 PM    9 SE GRAYLING             MI   .75 INCH HAIL
08/09/01   CRAWFORD

0530 PM    9 SE GRAYLING             MI   WIND DAMAGE
08/09/01   CRAWFORD                       TREES DOWN

0540 PM    CADILLAC                  MI   WIND DAMAGE
08/09/01   WEXFORD                        TREES AND POWER LINES
                                          DOWN. REPORTED BY STORM
                                          SPOTTER.

HURLEY

Local storm report, Aug 9, 6:30 PM EDT, 0 minutes before

PRELIMINARY LOCAL STORM REPORT...EVENT SUMMARY.
NATIONAL WEATHER SERVICE GAYLORD MI
630 EDT THU AUG 09 2001

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

0440 PM    PARKDALE                  MI   WIND DAMAGE
08/09/01   MANISTEE                       TREES AND POWER LINES
                                          DOWN. REPORTED BY STORM
                                          SPOTTER.

0505 PM    KEWADIN                   MI   60 MPH TSTM GUST
08/09/01   ANTRIM                         REPORTED BY STORM
                                          SPOTTER.

0505 PM    TRAVERSE CITY             MI   WIND DAMAGE
08/09/01   GRAND TRAVERSE                 TREES AND POWER LINES
                                          DOWN. REPORTED BY MEDIA.

0510 PM    NORTHPORT                 MI   WIND DAMAGE
08/09/01   LEELANAU                       TREES DOWN. REPORTED BY
                                          STORM SPOTTER.

0515 PM    ELK RAPIDS                MI   WIND DAMAGE
08/09/01   ANTRIM                         6 DIAMETER LIMBS DOWN.

0525 PM    KALKASKA                  MI   WIND DAMAGE
08/09/01   KALKASKA                       TREES AND POWER LINES
                                          DOWN. REPORTED BY MEDIA.

0530 PM    9 SE GRAYLING             MI   .75 INCH HAIL
08/09/01   CRAWFORD

0530 PM    9 SE GRAYLING             MI   WIND DAMAGE
08/09/01   CRAWFORD                       TREES DOWN.

0540 PM    CADILLAC                  MI   WIND DAMAGE
08/09/01   WEXFORD                        TREES AND POWER LINES
                                          DOWN. REPORTED BY STORM
                                          SPOTTER.

0620 PM    ATLANTA                   MI   WIND DAMAGE
08/09/01   MONTMORENCY                    TREES DOWN.

HURLEY

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 8, 11:13 PM EDT	Severe Thunderstorm Warning	APX	Chippewa	32 min
Aug 9, 4:04 PM EDT	Severe Thunderstorm Warning	APX	Benzie, Manistee	56 min
Aug 9, 4:28 PM EDT	Severe Thunderstorm Warning	APX	Leelanau	47 min
Aug 9, 5:04 PM EDT	Severe Thunderstorm Warning	APX	Antrim	41 min
Aug 9, 5:05 PM EDT	Severe Thunderstorm Warning	APX	Wexford	40 min
Aug 9, 5:12 PM EDT	Severe Thunderstorm Warning	APX	Grand Traverse, Kalkaska	48 min
Aug 9, 5:22 PM EDT	Severe Thunderstorm Warning	APX	Crawford, Otsego	53 min
Aug 9, 5:48 PM EDT	Severe Thunderstorm Warning	APX	Oscoda	42 min
Aug 9, 6:20 PM EDT	Severe Thunderstorm Warning	APX	Ogemaw, Roscommon	70 min
Aug 9, 6:25 PM EDT	Severe Thunderstorm Warning	APX	Montmorency	35 min
Aug 9, 6:45 PM EDT	Severe Thunderstorm Warning	APX	Iosco	45 min
Aug 9, 6:55 PM EDT	Severe Thunderstorm Warning	APX	Arenac	65 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.