Alert archive / Iowa / Flash Flood Warnings in 2016
Flash Flood Warning 5, NWS La Crosse, WI
NWS La Crosse, WI issued this flash flood warning at Jun 22, 2016, 12:17 AM CDT for Floyd County, Iowa. It was in force for 4 hr. 1 report 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
- Jun 22, 2016, 12:17 AM CDT (05:17 UTC)
- Expired
- Jun 22, 2016, 4:15 AM CDT
- In force
- 4 hr
- Issued by
- NWS La Crosse, WI
- Area
- Storm-based polygon
- Flood severity
- None
County Floyd County, IA
The radar
The La Crosse radar (KARX), 157 km from the middle of the area, began a volume at 05:17 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 |
|---|---|---|---|
| Jun 22, 3:45 AM CDT | HEAVY RAIN 2.35 | 3 Sse Rockford, IA | SHELL ROCK RIVER GAUGE /RKFI4/. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 5.3 hours before the alert went out and 207 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2403 m above ground
- 0-6 km bulk shear
- 63 kt
- 0-1 km storm-relative helicity
- 46 m²/s²
- 0-3 km storm-relative helicity
- 61 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
136 WGUS53 KARX 220517 FFWARX IAC067-220915- /O.NEW.KARX.FF.W.0005.160622T0517Z-160622T0915Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE LA CROSSE WI 1217 AM CDT WED JUN 22 2016 THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A * FLASH FLOOD WARNING FOR... FLOYD COUNTY IN NORTH CENTRAL IOWA... * UNTIL 415 AM CDT * AT 1214 AM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING HEAVY RAIN ACROSS FLOYD COUNTY. UP TO TWO INCHES OF RAIN HAVE ALREADY FALLEN, AND MORE IS COMING. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY. * SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... NORA SPRINGS...ROCKFORD...AND MARBLE ROCK. ADDITIONAL STORMS ARE MOVING IN FROM THE WEST, AND WILL FALL OVER THE SAME GENERAL AREA IN THE NEXT FEW HOURS. ADDITIONAL RAINFALL AMOUNTS OF ANOTHER 1 TO 2 INCHES IS POSSIBLE THROUGH 2 AM. FLOOD WATERS WILL PARTICULARLY AFFECT THE WINNEBAGO RIVER AND ITS TRIBUTARIES. PRECAUTIONARY/PREPAREDNESS ACTIONS... EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODING. TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD DEATHS OCCUR IN VEHICLES. && LAT...LON 4321 9302 4311 9255 4291 9256 4291 9303 $$ MW
2 follow-up statements
666 WGUS73 KARX 220707 FFSARX FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LA CROSSE WI 207 AM CDT WED JUN 22 2016 IAC067-220915- /O.CON.KARX.FF.W.0005.000000T0000Z-160622T0915Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ FLOYD IA- 207 AM CDT WED JUN 22 2016 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 415 AM CDT FOR FLOYD COUNTY... AT 205 AM CDT...DOPPLER RADAR AND AUTOMATED RAIN GAUGES INDICATED THUNDERSTORMS PRODUCING HEAVY RAINFALL OVER FLOYD COUNTY. RADAR INDICATES BETWEEN 2 AND 3 INCHES OF RAIN HAS ALREADY FALLEN...AND MORE IS COMING IN THE NEXT FEW HOURS. ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE THROUGH 4 AM. PRECAUTIONARY/PREPAREDNESS ACTIONS... TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD DEATHS OCCUR IN VEHICLES. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODING. PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU CAN DO SO SAFELY. && LAT...LON 4321 9302 4311 9255 4291 9256 4291 9303 $$ MW
480 WGUS73 KARX 220905 FFSARX FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LA CROSSE WI 405 AM CDT WED JUN 22 2016 IAC067-220911- /O.CAN.KARX.FF.W.0005.000000T0000Z-160622T0915Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ FLOYD IA- 405 AM CDT WED JUN 22 2016 ...THE FLASH FLOOD WARNING FOR FLOYD COUNTY IS CANCELLED... THE HEAVY RAIN AREA HAS SHIFTED OUT OF FLOYD COUNTY. CALLS TO LOCAL LAW ENFORCEMENT AGENCIES INDICATES THAT NO FLOODING HAS BEEN REPORTED, AND WITH RAIN NOW ENDING, FLOODING IS NO LONGER EXPECTED TO POSE A THREAT. BUT RADAR ESTIMATES THAT BETWEEN 2 AND 4 INCHES OF RAIN FELL IN A BAND FROM ROCKFORD AND MARBLE ROCK OVER TOWARD POWERSVILLE. EXPECT CREEKS AND RIVERS IN THESE AREAS TO BE RISING SIGNIFICANTLY THIS MORNING. THIS INCLUDE THE WINNEBAGO AND SHELL ROCK RIVERS AND THEIR TRIBUTARIES. IF FLOODING IS OBSERVED, PLEASE REPORT IT TO LAW ENFORCEMENT OFFICIALS. DO NOT CROSS ANY FLOODED ROADWAYS! YOU DO NO KNOW HOW DEEP THE WATER IS OR IF THE ROAD BED IS INTACT BELOW THE WATER. LAT...LON 4321 9302 4311 9255 4291 9256 4291 9303 $$ MW
The office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 11:01 PM CDT | Special Weather Statement | ARX | Floyd | 59 min |
| Jun 21, 11:07 PM CDT | Severe Thunderstorm Warning | ARX | Chickasaw, Floyd | 38 min |
Nearby
Flash Flood Warnings in Iowa, 2016Every flash flood warning in 2016
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.