Alert archive / Michigan / Flash Flood Warnings in 2020

Flash Flood Warning 3, NWS Gaylord, MI

May 18, 2020Gladwin County, Michigan

NWS Gaylord, MI issued this flash flood warning at May 18, 2020, 11:52 PM EDT for Gladwin County, Michigan. It was in force for 20 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, 11:52 PM EDT (03:52 UTC)
Expired
May 19, 2020, 7:45 PM EDT
In force
20 hr
Issued by
NWS Gaylord, MI
Area
Storm-based polygon
Emergency
Flash flood emergency
Damage threat
Catastrophic
Flood severity
None

County Gladwin County, MI

The radar

The NCL Michigan radar (KAPX), 108 km from the middle of the area, began a volume at 03:54 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 00:00Z, 3.9 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-pSkew-T log-p diagram, Detroit, MI at 00:00Z on 2020-05-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Detroit, MI at 00:00Z on 2020-05-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 227 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
591 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
227 m²/s²
0-3 km storm-relative helicity
208 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

354 
WGUS53 KAPX 190352
FFWAPX
MIC051-191145-
/O.NEW.KAPX.FF.W.0003.200519T0352Z-200519T1145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Gaylord MI
1152 PM EDT Mon May 18 2020

...FLASH FLOOD EMERGENCY FOR the Cedar River below the Chapel Dam...

The National Weather Service in Gaylord has issued a

* Flash Flood Warning for...
  The Cedar River below Chapel Dam in Southwestern Gladwin County in 
  northern Michigan...

* Until 745 AM EDT Tuesday.

* At 1146 PM EDT, Emergency Management flash flooding is imminent on 
  the Cedar River below the Chapel Dam.

  HAZARD...Life threatening flash flooding. 

  SOURCE...Emergency management.

  IMPACT...Life threatening flash flooding of creeks and streams.

Flood waters are moving down the Cedar River from the Chapel Dam. 
All people within this area need to seek higher ground immediately!

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to higher ground now. This is an extremely dangerous and
life-threatening situation. Do not attempt to travel unless you are
fleeing an area subject to flooding or under an evacuation order.

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 4402 8460 4403 8441 4395 8435 4383 8439
      4382 8460

FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CATASTROPHIC

$$

MLR
2 follow-up statements
560 
WGUS73 KAPX 190416
FFSAPX

Flash Flood Statement
National Weather Service Gaylord MI
1216 AM EDT Tue May 19 2020

MIC051-191145-
/O.CON.KAPX.FF.W.0003.000000T0000Z-200519T1145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Gladwin MI-
1216 AM EDT Tue May 19 2020

...THIS IS A FLASH FLOOD EMERGENCY FOR THE CEDAR RIVER BELOW THE 
CHAPPEL DAM...

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 745 AM EDT FOR 
the Cedar River below the Chappel Dam in SOUTHWESTERN 
GLADWIN COUNTY...

At 1212 AM EDT, Emergency Management reported flash flooding is 
imminent on the Cedar River below the Chappel Dam.

THIS IS A FLASH FLOOD EMERGENCY FOR areas around the Cedar River 
below the Chappel Dam. This is a PARTICULARLY DANGEROUS SITUATION. 
SEEK HIGHER GROUND NOW!

HAZARD...Life threatening flash flooding. 

SOURCE...Emergency Management.

IMPACT...This is a PARTICULARLY DANGEROUS SITUATION. SEEK HIGHER 
         GROUND NOW! Life threatening flash flooding of low water 
         crossings, small creeks and streams.

Flood waters are moving down the Cedar River from the Chapel Dam. 
All people within this area need to seek higher ground immediately!

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to higher ground now. This is an extremely dangerous and
life-threatening situation. Do not attempt to travel unless you are
fleeing an area subject to flooding or under an evacuation order.

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 4402 8460 4403 8441 4395 8435 4383 8439
      4382 8460

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CATASTROPHIC

$$

MLR
535 
WGUS53 KAPX 191136
FFWAPX
MIC051-192345-
/O.EXT.KAPX.FF.W.0003.000000T0000Z-200519T2345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

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

The National Weather Service in Gaylord has extended the

* Flash Flood Warning for...
  Excessive Rain in...
  Southwestern Gladwin County in northern Michigan...

* Until 745 PM EDT Tuesday.

* Emergency Management reported flash flooding is imminent on the 
  Cedar River below the Chapel Dam.

  HAZARD...Flash flooding from excessive rain.

  SOURCE...Emergency management.

  IMPACT...Flooding of small creeks and streams, as well as other 
           drainage and low lying areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to higher ground now. Act quickly to protect your life.

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 4402 8460 4403 8441 4395 8435 4383 8439
      4382 8460

FLASH FLOOD...OBSERVED

$$

MSB

The office that day

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

IssuedProductOfficeCountiesLasted
May 19, 2:00 AM EDTRiver Flood WarningAPXGladwin5 hr
May 19, 9:21 AM EDTRiver Flood WarningAPXGladwin29 hr
May 19, 1:12 PM EDTAreal Flood WarningAPXArenac, Gladwin6 hr
May 19, 7:00 PM EDTAreal Flood WarningAPXArenac, Gladwin24 hr

Nearby

Flash Flood Warnings in Michigan, 2020Every 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.