Alert archive / Michigan / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 26, NWS Detroit, MI

May 25, 2001Saginaw County, Michigan

NWS Detroit, MI issued this severe thunderstorm warning at May 25, 2001, 6:58 PM EDT for Saginaw County, Michigan. It was in force for 47 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: May 25, 2001, 6:58 PM EDT (22:58 UTC)
Expired: May 25, 2001, 7:45 PM EDT
In force: 47 min
Issued by: NWS Detroit, MI
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Saginaw County, MI

What was reported inside it

Time	Report	Where	Remark
May 25, 7:01 PM EDT	Hail 0.88	Frankenmuth, MI

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 nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 11.0 hours before the alert went out and 85 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: 37 J/kg
Mixed-layer CIN: -34 J/kg
Mixed-layer LCL: 996 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 72 m²/s²
0-3 km storm-relative helicity: 89 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 Detroit, MI wrote its last area forecast discussion before this severe thunderstorm warning went out at May 25, 3:35 PM EDT, 3 hours 23 minutes earlier.

Area forecast discussion, May 25, 3:35 PM EDT, 3 hours 23 minutes before

SOUTHEAST MICHIGAN AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
335 PM EDT FRI MAY 25 2001

NEXT LOBE ROTATING AROUND UPPER LOW IN NORTHERN INDIANA IS BRINGING
WIDESPREAD SHOWERS AND THUNDERSTORMS TO THE CWA LATE THIS AFTERNOON.
THESE SHOULD CONTINUE WELL INTO THE EVENING HOURS BUT WEAKEN
CONSIDERABLY AS WE APPROACH MIDNIGHT. ENOUGH FORCING LAYING AROUND
THOUGH TO KEEP A FEW SHOWERS GOING PAST THE MIDNIGHT TIME FRAME.
OUTSIDE OF THAT... MODELS ARE IN VIRTUAL AGREEMENT ON STACKED LOW
REMAINING/MEANDERING OVER THE REGION WITH ONE IMPULSE AFTER ANOTHER
PINWHEELING AROUND THE LOW. IN SHORT... THERE WILL BE PERIODS OF
RAIN... WITH BRIEF INTERVALS WITH BREEAKS IN CLOUD COVER... AND A LOT
OF PERSISTENCE.  PREFER WETTER AVN POPS AND COOLER AVN TEMPS GIVEN
THE BIG SLUG OF DEEPER MOISTER THE MODELS LOCK IN PLACE OVER THE
STATE.

.DTX...NONE.

In the hours before

Local storm report, May 25, 5:16 PM EDT, 1 hour 42 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC, MI
516 PM EDT FRI MAY 25 2001

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

0441 PM    PITTSFIELD TOWNSHIP       MI   .88 INCH HAIL
05/25/01   WASHTENAW                      PUBLIC REPORT

JW

The office that day

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

Issued	Product	Office	Counties	Lasted
May 25, 4:26 PM EDT	Severe Thunderstorm Warning	DTX	Washtenaw	34 min
May 25, 4:49 PM EDT	Severe Thunderstorm Warning	DTX	Monroe	41 min
May 25, 4:56 PM EDT	Severe Thunderstorm Warning	DTX	Washtenaw	34 min
May 25, 6:13 PM EDT	Severe Thunderstorm Warning	DTX	Saginaw	62 min
May 25, 6:14 PM EDT	Tornado Warning	DTX	Oakland	46 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.