Alert archive / Iowa / Flash Flood Warnings in 2015
Flash Flood Warning 1, NWS La Crosse, WI
NWS La Crosse, WI issued this flash flood warning at Jun 15, 2015, 4:29 AM CDT for Fayette County, Iowa. 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 outline as issued.
The facts
- Issued
- Jun 15, 2015, 4:29 AM CDT (09:29 UTC)
- Expired
- Jun 15, 2015, 7:30 AM CDT
- In force
- 3 hr
- Issued by
- NWS La Crosse, WI
- Area
- Storm-based polygon
- Flood severity
- None
County Fayette County, IA
The radar
The La Crosse radar (KARX), 127 km from the middle of the area, began a volume at 09:33 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
Davenport, (KDVN), launched 00:00Z, 9.5 hours before the alert went out and 170 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
- 180 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 1271 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 4 m²/s²
- 0-3 km storm-relative helicity
- 74 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
445
WGUS53 KARX 150929
FFWARX
IAC065-151230-
/O.NEW.KARX.FF.W.0001.150615T0929Z-150615T1230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
429 AM CDT MON JUN 15 2015
THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTH CENTRAL FAYETTE COUNTY IN NORTHEASTERN IOWA...
* UNTIL 730 AM CDT
* AT 424 AM CDT...DOPPLER RADAR SHOWED HEAVY RAIN FALLING ACROSS
SOUTH CENTRAL FAYETTE COUNTY. UP TO THREE INCHES OF RAIN HAVE
ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
MAYNARD...COUNTY ROADS W 33 AND 187...AND THE TWIN BRIDGES PARK.
ADDITIONAL RAINFALL AMOUNTS OF UP TO 1 INCH WILL BE POSSIBLE IN THE
WARNED AREA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.
&&
LAT...LON 4282 9184 4273 9177 4272 9185 4282 9192
$$
BOYNE3 follow-up statements
246 WGUS73 KARX 151034 FFSARX FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LA CROSSE WI 534 AM CDT MON JUN 15 2015 IAC065-151230- /O.CON.KARX.FF.W.0001.000000T0000Z-150615T1230Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ FAYETTE IA- 534 AM CDT MON JUN 15 2015 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 730 AM CDT FOR SOUTH CENTRAL FAYETTE COUNTY... AT 527 AM CDT...DOPPLER RADAR INDICATED THAT UP TO THREE AND A HALF INCHES OF RAIN HAVE ALREADY FALLEN IN PARTS OF SOUTH CENTRAL FAYETTE COUNTY. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY ALONG THE LITTLE VOLGA RIVER NEAR AND AROUND MAYNARD. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... MAYNARD...COUNTY ROAD W 33 AND 187...AND THE TWIN BRIDGES PARK CAMPGROUND. ADDITIONAL RAINFALL AMOUNTS OF UP TO A HALF INCH IS POSSIBLE IN AREAS DRAINED BY THE LITTLE VOLGA RIVER. PRECAUTIONARY/PREPAREDNESS ACTIONS... MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE. TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD DEATHS OCCUR IN VEHICLES. && LAT...LON 4282 9184 4273 9177 4272 9185 4282 9192 $$ BOYNE
890 WGUS73 KARX 151145 FFSARX FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LA CROSSE WI 645 AM CDT MON JUN 15 2015 IAC065-151230- /O.CON.KARX.FF.W.0001.000000T0000Z-150615T1230Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ FAYETTE IA- 645 AM CDT MON JUN 15 2015 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 730 AM CDT FOR SOUTH CENTRAL FAYETTE COUNTY... AT 639 AM CDT...DOPPLER RADAR INDICATED SOME LIGHTER RAIN CONTINUED ACROSS MUCH OF FAYETTE COUNTY AND THE WARNED AREA. UP TO 3.5 INCHES OF RAIN FELL OVERNIGHT IN THE WARNED AREA...MOST OF THIS BETWEEN 330 AM AND 430 AM THIS MORNING. FLASH FLOODING IS LIKELY FROM THIS RAIN. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...MAYNARD... COUNTY ROAD W 33 AND 187 AND THE TWIN BRIDGES PARK CAMPGROUND THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...LITTLE VOLGA RIVER. PRECAUTIONARY/PREPAREDNESS ACTIONS... STAY AWAY OR BE SWEPT AWAY. RIVER BANKS AND CULVERTS WITH FAST FLOWING WATER CAN BECOME UNSTABLE AND UNSAFE. DO NOT WALK OR DRIVE THROUGH AREAS WITH FAST FLOWING WATER. && LAT...LON 4282 9184 4273 9177 4272 9185 4282 9192 $$ RRS
450 WGUS73 KARX 151224 FFSARX FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LA CROSSE WI 724 AM CDT MON JUN 15 2015 IAC065-151231- /O.EXP.KARX.FF.W.0001.000000T0000Z-150615T1230Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ FAYETTE IA- 724 AM CDT MON JUN 15 2015 ...THE FLASH FLOOD WARNING FOR SOUTH CENTRAL FAYETTE COUNTY WILL EXPIRE AT 730 AM CDT... S OF 720 AM NO FLASH FLOODING HAD BEEN REPORTED AND FLASH FLOODING IS NO LONGER EXPECTED TO POSE A THREAT. LAT...LON 4282 9184 4273 9177 4272 9185 4282 9192 $$ RRS
The office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 15, 1:28 PM CDT | Special Weather Statement | ARX | Allamakee, Fayette | 92 min |
Nearby
Flash Flood Warnings in Iowa, 2015Every flash flood warning in 2015
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.