Alert archive / Michigan / Flash Flood Warnings in 2003

Flash Flood Warning 2, NWS Gaylord, MI

July 21, 2003Antrim County, Otsego County, Michigan

NWS Gaylord, MI issued this flash flood warning at Jul 21, 2003, 1:32 PM EDT for Antrim County, Otsego County, Michigan. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 21, 2003, 1:32 PM EDT (17:32 UTC)
Expired
Jul 21, 2003, 4:30 PM EDT
In force
3 hr
Issued by
NWS Gaylord, MI
Area
Whole counties

Counties Antrim County, MI, Otsego County, MI

The radar

The NCL Michigan radar (KAPX), 18 km from the middle of the area, began a volume at 17:31 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

Alpena, MI (KAPX), launched 12:00Z, 5.5 hours before the alert went out and 196 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, Alpena, MI at 12:00Z on 2003-07-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 186 joules per kilogram.LCLLFCEL10008507005003002001001 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, Alpena, MI at 12:00Z on 2003-07-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 44 square meters per square second.1939587897Sfc1 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
186 J/kg
Mixed-layer CIN
-20 J/kg
Mixed-layer LCL
540 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
44 m²/s²
0-3 km storm-relative helicity
48 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 
WGUS53 KAPX 211731
FFWAPX
MIC009-137-212030-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE GAYLORD MI
132 PM EDT MON JUL 21 2003

THE NATIONAL WEATHER SERVICE IN GAYLORD HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  ANTRIM COUNTY IN NORTHERN LOWER MICHIGAN
  OTSEGO COUNTY IN NORTHERN LOWER MICHIGAN

* UNTIL 430 PM EDT

* AT 115 PM EDT...WEATHER SERVICE DOPPLER RADAR INDICATED AN
  AREA OF VERY HEAVY RAIN OVER EASTERN ANTRIM AND SOUTHERN OTSEGO
  COUNTIES.  MOVEMENT WAS NEARLY STATIONARY.

* DOPPLER RADAR RAINFALL ESTIMATES BETWEEN 2 AND 3 INCHES OF RAIN IN 
  ONE HOUR OVER EASTERN PORTIONS OF ANTRIM AND SOUTHERN PORTIONS OF  
  OTSEGO COUNTIES.  AREAS ALONG THE MANISTEE RIVER...FRENCHMAN 
  CREEK...AND KOLKE CREEK IN SOUTHERN OTSEGO COUNTY ARE SUBJECT TO
  RAPID INCREASES IN WATER LEVELS.

NEARLY HALF OF ALL FLOOD FATALITIES ARE VEHICLE RELATED. DO NOT
ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE
ROADWAY. NEVER DRIVE THROUGH FLOWING WATER.

$$

JPB/TBA
4 follow-up statements
514 
RWUS32 KAPX 211833
FFSAPX
MIC009-137-212030-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GAYLORD MI
234 PM EDT MON JUL 21 2003

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR ANTRIM AND OTSEGO 
COUNTIES IN NORTHERN LOWER MICHIGAN UNTIL 430 PM EDT...

AT 230 PM EDT...WEATHER SERVICE DOPPLER RADAR INDICATED SCATTERED  
THUNDERSTORMS PRODUCING HEAVY RAINFALL OVER PORTIONS OF EASTERN 
ANTRIM AND SOUTHERN OTSEGO COUNTIES. MOVEMENT OF THESE STORMS REMAIN 
NEARLY STATIONARY. 

THESE STORMS HAVE PRODUCED HEAVY RAINFALL ACROSS THE WARNING AREA 
SINCE 1 PM.  RAINFALL AMOUNTS OF 2.37 INCHES IN 50 MINUTES WERE 
RECORDED AT THE NATIONAL WEATHER SERVICE OFFICE IN GAYLORD...WITH 
RADAR ESTIMATES OF UP TO 3 INCHES OF RAINFALL IN UNDER TWO HOURS 
TIME ACROSS EASTERN ANTRIM AND SOUTHERN OTSEGO COUNTIES.

ALTHOUGH STORMS HAVE WEAKENED OVER THE PAST HOUR OR SO EXCESSIVE 
RUNOFF FROM THESE STORMS MAY STILL CAUSE RAPID FLOODING OF SMALL 
CREEKS AND STREAMS...ROADWAYS AND UNDERPASSES...AS WELL AS OTHER 
DRAINAGE AREAS AND LOW LYING SPOTS.

NEARLY HALF OF ALL FLOOD FATALITIES ARE VEHICLE RELATED. DO NOT
ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE
ROADWAY. NEVER DRIVE THROUGH FLOWING WATER.

$$

TBA/JPB
000 
RWUS32 KAPX 211926
FFSAPX
MIC009-137-220115-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GAYLORD MI
325 PM EDT MON JUL 21 2003

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR ANTRIM AND OTSEGO 
COUNTIES IN NORTHERN LOWER MICHIGAN UNTIL 430 PM EDT...

AT 325 PM EDT...WEATHER SERVICE DOPPLER RADAR INDICATED THAT 
THUNDERSTORMS OVER EASTERN ANTRIM AND SOUTHERN OTSEGO COUNTIES HAVE 
WEAKENED SUBSTANTIALLY OVER THE LAST HOUR. HOWEVER...LIGHT RAIN 
CONTINUES TO FALL OVER THE PORTIONS OF THE WARNING AREA AND 
EXCESSIVE RUNOFF FROM EARLIER THUNDERSTORMS MAY STILL PRODUCE 
FLOODING OF SMALL CREEKS AND STREAMS...ROADWAYS AND UNDERPASSES...AS 
WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS. 

WEATHER SERVICE RADAR ESTIMATES OF UP TO 3 INCHES OF RAINFALL FELL 
IN UNDER TWO HOURS ACROSS PORTIONS OF THE WARNING AREA... 
PARTICULARLY BETWEEN ALBA IN EASTERN ANTRIM COUNTY AND WATERS IN 
SOUTHWEST OTSEGO COUNTY. 

NEARLY HALF OF ALL FLOOD FATALITIES ARE VEHICLE RELATED. DO NOT 
ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE 
ROADWAY. NEVER DRIVE THROUGH FLOWING WATER.

$$

ADAM/JPB
000 
RWUS32 KAPX 211927 CCA
FFSAPX
MIC009-137-212030-

FLASH FLOOD STATEMENT...CORRECTED UGC EXPIRATION TIME
NATIONAL WEATHER SERVICE GAYLORD MI
325 PM EDT MON JUL 21 2003

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR ANTRIM AND OTSEGO 
COUNTIES IN NORTHERN LOWER MICHIGAN UNTIL 430 PM EDT...

AT 325 PM EDT...WEATHER SERVICE DOPPLER RADAR INDICATED THAT 
THUNDERSTORMS OVER EASTERN ANTRIM AND SOUTHERN OTSEGO COUNTIES HAVE 
WEAKENED SUBSTANTIALLY OVER THE LAST HOUR. HOWEVER...LIGHT RAIN 
CONTINUES TO FALL OVER THE PORTIONS OF THE WARNING AREA AND 
EXCESSIVE RUNOFF FROM EARLIER THUNDERSTORMS MAY STILL PRODUCE 
FLOODING OF SMALL CREEKS AND STREAMS...ROADWAYS AND UNDERPASSES...AS 
WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS. 

WEATHER SERVICE RADAR ESTIMATES OF UP TO 3 INCHES OF RAINFALL FELL 
IN UNDER TWO HOURS ACROSS PORTIONS OF THE WARNING AREA... 
PARTICULARLY BETWEEN ALBA IN EASTERN ANTRIM COUNTY AND WATERS IN 
SOUTHWEST OTSEGO COUNTY. 

NEARLY HALF OF ALL FLOOD FATALITIES ARE VEHICLE RELATED. DO NOT 
ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE 
ROADWAY. NEVER DRIVE THROUGH FLOWING WATER.

$$

ADAM/JPB
770 
RWUS32 KAPX 212031
FFSAPX
MIC009-137-212050-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GAYLORD MI
430 PM EDT MON JUL 21 2003

...FLASH FLOOD WARNING FOR ANTRIM AND OTSEGO COUNTIES HAS BEEN 
ALLOWED TO EXPIRE...

AT 430 PM EDT...WEATHER SERVICE RADAR INDICATED THAT THE SHOWERS AND 
THUNDERSTORMS THAT PROMPTED THE FLASH FLOOD WARNING HAVE DIMINISHED 
SUBSTANTIALLY...WITH ONLY A FEW RAIN SHOWERS REMAINING OVER OTSEGO 
COUNTY. THEREFORE...THE FLASH FLOOD WARNING HAS BEEN ALLOWED TO 
EXPIRE. 

SIGNIFICANT FLOODING HAS NOT BEEN REPORTED IN ANTRIM OR OTSEGO 
COUNTIES. HOWEVER...WEATHER SERVICE RADAR ESTIMATES OF UP TO 3 
INCHES OF RAIN FELL BETWEEN 100 PM AND 300 PM ACROSS PORTIONS OF THE 
WARNING AREA...MAINLY BETWEEN ALBA IN EASTERN ANTRIM COUNTY AND 
WATERS IN SOUTHWEST OTSEGO COUNTY.

STAY TUNED TO NATIONAL WEATHER SERVICE WEATHER RADIO FOR THE LATEST 
WEATHER INFORMATION.

$$

ADAM

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 20, 8:09 PM EDTSevere Thunderstorm WarningAPXManistee51 min
Jul 20, 8:14 PM EDTSpecial Marine WarningAPX91 min
Jul 20, 8:14 PM EDTSpecial Marine WarningAPX91 min
Jul 20, 11:40 PM EDTSpecial Marine WarningAPX65 min
Jul 20, 11:40 PM EDTSpecial Marine WarningAPX65 min
Jul 21, 12:45 AM EDTSpecial Marine WarningAPX60 min
Jul 21, 2:19 AM EDTSpecial Marine WarningAPX41 min

Nearby

Flash Flood Warnings in Michigan, 2003Every flash flood warning in 2003

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.