Alert archive / Indiana / Flash Flood Warnings in 2021
Flash Flood Warning 3, NWS Northern Indiana
NWS Northern Indiana issued this flash flood warning at Jul 16, 2021, 11:27 PM EDT for Allen County, Indiana. It was in force for 4 hr. 12 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jul 16, 2021, 11:27 PM EDT (03:27 UTC)
- Expired
- Jul 17, 2021, 3:30 AM EDT
- In force
- 4 hr
- Issued by
- NWS Northern Indiana
- Area
- Storm-based polygon
- Flood severity
- None
County Allen County, IN
The radar
The Northern Indiana radar (KIWX), 69 km from the middle of the area, began a volume at 03:29 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 16, 11:30 PM EDT | HEAVY RAIN 3.91 | Monroeville, IN | TOTAL SINCE 6:30 PM EDT. |
| Jul 16, 11:37 PM EDT | HEAVY RAIN 1.53 | 2 Ene Nine Mile, IN | ASOS STATION KFWA FORT WAYNE INTERNATIONAL AP. |
| Jul 17, 12:00 AM EDT | FLASH FLOOD | 2 Nne Yoder, IN | EXIT AT SR 1 AND I 469 IS FLOODED. ISP CLOSED THE EXIT AND THEN SR-1 ALL THE WAY DOWN TO HAMILTON ROAD DUE TO WATER OVER ROADWAY. |
| Jul 17, 12:15 AM EDT | FLASH FLOOD | 3 Wnw Hessen Cassel, IN | SEVERAL PLACES WITH APPROXIMATELY 10 INCHES OF WATER ON THE ROADWAY IN SOUTHERN ALLEN COUNTY. INCLUDES FERGUSON BETWEEN BLUFFTON ROAD AND THIELE ROAD. |
| Jul 17, 12:30 AM EDT | FLASH FLOOD | Monroeville, IN | DELAYED REPORT. VIDEO ON TWITTER OF WATER OVERFLOWING STORM DRAIN. WATER COVERING SR 101. |
| Jul 17, 12:30 AM EDT | FLASH FLOOD | Monroeville, IN | WATER FLOWING THROUGH FIRE DEPT PARKING LOT. VIDEO ON TWITTER. TIME ESTIMATED FROM RADAR. |
| Jul 17, 12:50 AM EDT | HEAVY RAIN 5.8 | 1 Nne Yoder, IN | TOTAL FROM 6:30 PM UNTIL 12:50 AM. |
| Jul 17, 1:06 AM EDT | FLASH FLOOD | 3 N Hessen Cassel, IN | TRIER DITCH FLOWING OVER TILLMAN ROAD BETWEEN HESSEN CASSEL ROAD AND ADAMS CENTER ROAD. |
| Jul 17, 1:16 AM EDT | FLASH FLOOD | 1 Ese Hessen Cassel, IN | 6-8 INCHES OF WATER OVER ROADWAY, SE ALLEN COUNTY, 5300 BLOCK OF MONROEVILLE ROAD, BETWEEN TRENTMAN ROAD AND MARION CENTER ROAD. |
| Jul 17, 1:40 AM EDT | FLASH FLOOD | 1 Wnw Monroeville, IN | APPROXIMATELY 6-8 INCHES OF WATER COVERING ROAD WAY, UNOCCUPIED VEHICLE IN DITCH, WEST EDGE OF MONROEVILLE, NEAR INTERSECTION OF MONROEVILLE ROAD AND WHITTERN ROAD. |
| Jul 17, 1:54 AM EDT | HEAVY RAIN 2.85 | 2 Ene Nine Mile, IN | ASOS STATION KFWA FORT WAYNE INTERNATIONAL AP. |
| Jul 17, 2:30 AM EDT | FLASH FLOOD | Monroeville, IN | PHOTOS ON TWITTER SHOWS WATER OF 7 TO 10 IN (ESTIMATED) DEEP, UP TO BOTTOM OF SUV DOORS, WATER NEARLY UP TO THE DOORS AT NEARBY CHURCH. TIME FROM REPORT SOURCE. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 00:00Z, 3.5 hours before the alert went out and 204 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.
- Mixed-layer CAPE
- 163 J/kg
- Mixed-layer CIN
- -108 J/kg
- Mixed-layer LCL
- 1176 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 157 m²/s²
- 0-3 km storm-relative helicity
- 168 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.2
The text
As transmitted.
421
WGUS53 KIWX 170327
FFWIWX
INC003-170630-
/O.NEW.KIWX.FF.W.0003.210717T0327Z-210717T0630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Northern Indiana
1127 PM EDT Fri Jul 16 2021
The National Weather Service in Northern Indiana has issued a
* Flash Flood Warning for...
Southeastern Allen County in northeastern Indiana...
* Until 230 AM EDT.
* At 1124 PM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 2 and 4 inches of rain
have fallen. The expected rainfall rate is 1 to 1.5 inches in 1
hour. Additional rainfall amounts of 1 to 2 inches are possible in
the warned area. Flash flooding is ongoing or expected to begin
shortly.
HAZARD...Flash flooding caused by excessive rainfall.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban
areas, highways, streets and underpasses as well as
other poor drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Fort Wayne, New Haven, Monroeville, Middletown, Dixon, Maples,
Hoagland, Hessen Cassel, Tillman, Poe, Zulu, Townley and Yoder.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 4104 8515 4106 8498 4107 8480 4092 8480
4092 8525
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1-1.5 INCHES IN 1 HOUR
$$
IWX3 follow-up statements
517
WGUS73 KIWX 170501
FFSIWX
Flash Flood Statement
National Weather Service Northern Indiana
101 AM EDT Sat Jul 17 2021
INC003-170630-
/O.CON.KIWX.FF.W.0003.000000T0000Z-210717T0630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Allen IN-
101 AM EDT Sat Jul 17 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 230 AM EDT EARLY THIS
MORNING FOR SOUTHEASTERN ALLEN COUNTY...
At 1240 AM EDT, local law enforcement reported flash flooding near
Interstate 469 and State Road 1. Between 3 and 5 inches of rain have
fallen. Additional rainfall amounts of 0.5 to 1 inch are possible in
the warned area. Flash flooding is already occurring.
HAZARD...Flash flooding caused by heavy rain.
SOURCE...Law enforcement reported.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
Some locations that will experience flash flooding include...
Fort Wayne, New Haven, Monroeville, Middletown, Dixon, Maples,
Hoagland, Hessen Cassel, Tillman, Poe, Zulu, Townley and Yoder.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 4104 8515 4106 8498 4107 8480 4105 8480
4104 8480 4103 8480 4099 8480 4095 8480
4092 8480 4092 8487 4092 8492 4092 8525
FLASH FLOOD...OBSERVED
$$
IWX392
WGUS53 KIWX 170607
FFWIWX
INC003-170730-
/O.EXT.KIWX.FF.W.0003.000000T0000Z-210717T0730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Northern Indiana
207 AM EDT Sat Jul 17 2021
The National Weather Service in Northern Indiana has extended the
* Flash Flood Warning for...
Southeastern Allen County in northeastern Indiana...
* Until 330 AM EDT.
* At 145 AM EDT, trained weather spotters reported numerous roads
flooded across southeast Allen County. Between 3 and 6 inches of
rain have fallen. Additional rainfall amounts up to 0.5 inches are
possible in the warned area. Flash flooding is already occurring.
HAZARD...Flash flooding caused by heavy rain.
SOURCE...Trained spotters reported.
IMPACT...Flash flooding of small creeks and streams, urban
areas, highways, streets and underpasses as well as
other poor drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Fort Wayne, New Haven, Monroeville, Middletown, Dixon, Maples,
Hoagland, Hessen Cassel, Tillman, Poe, Zulu, Townley and Yoder.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 4104 8515 4106 8498 4107 8480 4105 8480
4104 8480 4103 8480 4099 8480 4095 8480
4092 8480 4092 8487 4092 8492 4092 8525
FLASH FLOOD...OBSERVED
$$
IWX172
WGUS73 KIWX 170728
FFSIWX
Flash Flood Statement
National Weather Service Northern Indiana
328 AM EDT Sat Jul 17 2021
INC003-170738-
/O.EXP.KIWX.FF.W.0003.000000T0000Z-210717T0730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Allen IN-
328 AM EDT Sat Jul 17 2021
...FLASH FLOOD WARNING WILL EXPIRE AT 330 AM EDT EARLY THIS MORNING
FOR SOUTHEASTERN ALLEN COUNTY...
The heavy rain has ended. Flooding is no longer expected to pose a
significant threat. Please continue to heed remaining road closures.
LAT...LON 4104 8515 4106 8498 4107 8480 4105 8480
4104 8480 4103 8480 4099 8480 4095 8480
4092 8480 4092 8487 4092 8492 4092 8525
$$
IWXThe office that day
Everything else NWS Northern Indiana issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 16, 9:17 PM EDT | Areal Flood Advisory | IWX | Allen | 3 hr |
| Jul 17, 1:12 AM EDT | Areal Flood Advisory | IWX | Adams, Wells | 3 hr |
| Jul 17, 4:35 PM EDT | Special Weather Statement | IWX | Marshall | 40 min |
Nearby
Flash Flood Warnings in Indiana, 2021Every flash flood warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.