Alert archive / Michigan / Flash Flood Warnings in 2020

Flash Flood Warning 2, NWS Gaylord, MI

May 18, 2020Gladwin County, Michigan

NWS Gaylord, MI issued this flash flood warning at May 18, 2020, 3:11 PM EDT for Gladwin County, Michigan. It was in force for 30 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 18, 2020, 3:11 PM EDT (19:11 UTC)
Expired: May 19, 2020, 9:15 PM EDT
In force: 30 hr
Issued by: NWS Gaylord, MI
Area: Storm-based polygon
Flood severity: None

County Gladwin County, MI

The radar

The NCL Michigan radar (KAPX), 115 km from the middle of the area, began a volume at 19:11 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 nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 7.2 hours before the alert went out and 152 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: 529 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 344 m²/s²
0-3 km storm-relative helicity: 377 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

759 
WGUS53 KAPX 181911
FFWAPX
MIC051-191915-
/O.NEW.KAPX.FF.W.0002.200518T1911Z-200519T1915Z/
/00000.0.DR.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Gaylord MI
311 PM EDT Mon May 18 2020

The National Weather Service in Gaylord has issued a

* Flash Flood Warning for...
  The Tittabawassee River below Secord Dam in...
  South central Gladwin County in northern Michigan...

* Until 315 PM EDT Tuesday.

* At 308 PM EDT, Gladwin County dispatch is reporting that high 
  flows are being passed through Secord and Smallwood Dams on the 
  Tittabawassee River in Gladwin County.

  HAZARD...Flash flooding from the Tittabawassee River below Secord 
           Dam.

  SOURCE...County dispatch.

  IMPACT...Flooding in areas along the river immediately downstream 
           of the dam.

* The nearest downstream town is Secord...located about 2 miles from
  the dam. Areas downstream from the Secord Dam along the
  Tittabawassee River should be prepared for flooding.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you are in low lying areas below the Secord Dam you should move to
higher ground immediately. Follow evacuation instructions provided by
your local emergency officials. Do not attempt to drive across
flooded roadways.

A Flash Flood Warning means that flooding is imminent or occurring.
If you are in the warned area move to higher ground immediately.
Residents living along streams and creeks should take immediate
precautions to protect life and property.

&&

LAT...LON 4404 8433 4394 8428 4382 8431 4382 8436
      4381 8437 4381 8440 4381 8440 4394 8435
      4404 8439

FLASH FLOOD...OBSERVED

$$

JPB

3 follow-up statements

326 
WGUS73 KAPX 190211
FFSAPX

Flash Flood Statement
National Weather Service Gaylord MI
1011 PM EDT Mon May 18 2020

MIC051-191915-
/O.CON.KAPX.FF.W.0002.000000T0000Z-200519T1915Z/
/00000.0.DR.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Gladwin MI-
1011 PM EDT Mon May 18 2020

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 315 PM EDT 
Tuesday FOR the Tittabawassee River below Secord Dam in SOUTH 
CENTRAL GLADWIN COUNTY...

At 1007 PM EDT, Gladwin County dispatch is reporting that high flows 
are being passed through Secord and Smallwood Dams on the 
Tittabawassee River in Gladwin County.

HAZARD...Flash flooding from the Tittabawassee River below Secord 
         Dam.

SOURCE...County Dispatch.

IMPACT...Flooding in areas along the river immediately downstream of 
         the dam.

* The nearest downstream town is Secord...located about 2 miles from 
  the dam. Areas downstream from the Secord Dam along the 
  Tittabawassee River should be prepared for flooding.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you are in low lying areas below the Secord Dam you should move 
to higher ground immediately. Follow evacuation instructions 
provided by your local emergency officials. Do not attempt to drive 
across flooded roadways.

Be especially cautious at night when it is harder to recognize the
dangers of flooding.

A Flash Flood Warning means that flooding is imminent or occurring.
If you are in the warned area move to higher ground immediately.
Residents living along streams and creeks should take immediate
precautions to protect life and property.

&&

LAT...LON 4404 8433 4394 8428 4382 8431 4382 8436
      4381 8437 4381 8440 4394 8435 4404 8439

FLASH FLOOD...RADAR INDICATED

$$

MLR

041 
WGUS73 KAPX 191237
FFSAPX

Flash Flood Statement
National Weather Service Gaylord MI
837 AM EDT Tue May 19 2020

MIC051-191915-
/O.CON.KAPX.FF.W.0002.000000T0000Z-200519T1915Z/
/00000.0.DR.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Gladwin MI-
837 AM EDT Tue May 19 2020

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 315 PM EDT FOR
SOUTH CENTRAL GLADWIN COUNTY...

* At 308 PM EDT, Gladwin County dispatch is reporting that high 
  flows are being passed through Secord and Smallwood Dams on the 
  Tittabawassee River in Gladwin County.

HAZARD...Flash flooding from the Tittabawassee River below Secord 
         Dam.

SOURCE...Emergency management.

IMPACT...Flooding in areas along the river immediately downstream of 
         the dam.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

A Flash Flood Warning means that flooding is imminent or occurring.
If you are in the warned area move to higher ground immediately.
Residents living along streams and creeks should take immediate
precautions to protect life and property.

&&

LAT...LON 4404 8433 4394 8428 4382 8431 4382 8436
      4381 8437 4381 8440 4394 8435 4404 8439

FLASH FLOOD...OBSERVED

$$

MSB

643 
WGUS53 KAPX 191849
FFWAPX
MIC051-200115-
/O.EXT.KAPX.FF.W.0002.000000T0000Z-200520T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Gaylord MI
249 PM EDT Tue May 19 2020

The National Weather Service in Gaylord has extended the

* Flash Flood Warning for...
  South central Gladwin County in northern Michigan...

* Until 915 PM EDT Tuesday.

* At 247 PM EDT, Gladwin County dispatch is reporting that high 
  flows are being passed through Secord and Smallwood Dams on the 
  Tittabawassee River in Gladwin County.

HAZARD...Flash flooding from the Tittabawassee River below Secord 
         Dam.

SOURCE...Emergency management.

IMPACT...Flooding in areas along the river immediately downstream of 
         the dam.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

A Flash Flood Warning means that flooding is imminent or occurring.
If you are in the warned area move to higher ground immediately.
Residents living along streams and creeks should take immediate
precautions to protect life and property.

&&

LAT...LON 4404 8433 4394 8428 4382 8431 4382 8436
      4381 8437 4381 8440 4394 8435 4404 8439

FLASH FLOOD...OBSERVED

$$

MSB

The office that day

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

Issued	Product	Office	Counties	Lasted
May 17, 9:50 PM EDT	River Flood Warning	APX	Arenac	5 days
May 17, 9:50 PM EDT	River Flood Warning	APX	Wexford	3 days
May 18, 12:16 PM EDT	Flash Flood Warning	APX	Gladwin	6 hr
May 18, 1:25 PM EDT	Areal Flood Warning	APX	Arenac, Gladwin, Manistee, Missaukee, Roscommon, Wexford	24 hr
May 18, 3:39 PM EDT	Areal Flood Warning	APX	Iosco, Ogemaw	21 hr
May 18, 4:06 PM EDT	Lakeshore Flood Advisory	APX	Alcona, Alpena, Arenac, Iosco	19 hr
May 18, 4:50 PM EDT	River Flood Warning	APX	Gladwin	47 hr

Nearby

Flash Flood Warnings in Michigan, 2020 Every flash flood warning in 2020

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.