Alert archive / Iowa / Flash Flood Warnings in 2016
Flash Flood Warning 16, NWS Des Moines, IA
NWS Des Moines, IA issued this flash flood warning at Aug 1, 2016, 4:08 AM CDT for Ringgold County, Taylor County, Iowa. It was in force for 6 hr. 3 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
- Aug 1, 2016, 4:08 AM CDT (09:08 UTC)
- Expired
- Aug 1, 2016, 10:00 AM CDT
- In force
- 6 hr
- Issued by
- NWS Des Moines, IA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Ringgold County, IA, Taylor County, IA
The radar
The Des Moines radar (KDMX), 132 km from the middle of the area, began a volume at 09:08 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 |
|---|---|---|---|
| Aug 1, 7:00 AM CDT | HEAVY RAIN 2.82 | 1 Wnw Blockton, IA | CO-OP OBSERVER MEASURED 2.82 INCHES OF RAINFALL DURING PAST 24 HOURS. |
| Aug 1, 7:00 AM CDT | HEAVY RAIN 4.25 | 1 Nne Mount Ayr, IA | CO-OP OBSERVER MEASURED 4.25 INCHES OF RAIN DURING PAST 24 HOURS. |
| Aug 1, 9:30 AM CDT | FLASH FLOOD | Mount Ayr, IA | CO-OP OBSERVER REPORTED WIDESPREAD WATER COVERING ROADWAYS THROUGHOUT MOUNT AYR. WATER OVER ROADWAYS WAS UPWARDS OF 6 INCHES DEEP. TIME AND LOCATION ESTIMATED. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Omaha, NE (KOAX), launched 00:00Z, 9.1 hours before the alert went out and 171 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
- 401 J/kg
- Mixed-layer CIN
- -262 J/kg
- Mixed-layer LCL
- 1247 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 61 m²/s²
- 0-3 km storm-relative helicity
- 134 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.4
The text
As transmitted.
557 WGUS53 KDMX 010908 FFWDMX IAC159-173-011500- /O.NEW.KDMX.FF.W.0016.160801T0908Z-160801T1500Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE DES MOINES IA 408 AM CDT MON AUG 1 2016 THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A * FLASH FLOOD WARNING FOR... TAYLOR COUNTY IN SOUTHWESTERN IOWA... RINGGOLD COUNTY IN SOUTH CENTRAL IOWA... * UNTIL 1000 AM CDT * AT 405 AM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING HEAVY RAIN ACROSS THE WARNED AREA. UP TO THREE INCHES OF RAIN HAVE ALREADY FALLEN WITH LOCAL AMOUNTS POSSIBLE APPROACHING FOUR INCHES. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY. * SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... MOUNT AYR...BEDFORD...LENOX...CLEARFIELD...DIAGONAL...BLOCKTON... GRAVITY...SHARPSBURG...REDDING...BENTON...CONWAY...MALOY... DELPHOS...ATHELSTAN... MT AYR MUNICIPAL AIRPORT AND LAKE OF THREE FIRES STATE PARK. THE PLATTE AND GRAND RIVERS AND THEIR SMALLER TRIBUTARIES MAY BE AFFECTED AS WELL. 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 4057 9464 4090 9490 4090 9432 4058 9403 $$ SMALL
2 follow-up statements
806 WGUS73 KDMX 011017 FFSDMX FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 517 AM CDT MON AUG 1 2016 IAC159-173-011500- /O.CON.KDMX.FF.W.0016.000000T0000Z-160801T1500Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ TAYLOR IA-RINGGOLD IA- 517 AM CDT MON AUG 1 2016 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1000 AM CDT FOR TAYLOR AND RINGGOLD COUNTIES... AT 512 AM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS CONTINUING TO PRODUCE HEAVY RAIN ACROSS THE WARNED AREA. RADAR ESTIMATES SHOW THAT THREE TO FIVE INCHES OF RAIN MAY HAVE FALLEN IN THESE AREAS WITH NEARBY OBSERVATIONS SHOWING NEARLY SEVEN TENTHS OF AN INCH HAS FALLEN IN ONLY 20 MINUTES. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY IF IT HAS NOT ALREADY. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... MOUNT AYR...BEDFORD...LENOX...CLEARFIELD...DIAGONAL...BLOCKTON... GRAVITY...SHARPSBURG...REDDING...BENTON...CONWAY...MALOY...DELPHOS... ATHELSTAN...MT AYR MUNICIPAL AIRPORT AND LAKE OF THREE FIRES STATE PARK. THE PLATTE AND GRAND RIVERS...AND THEIR SMALLER TRIBUTARIES...MAY BE AFFECTED AS WELL. PRECAUTIONARY/PREPAREDNESS ACTIONS... TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD DEATHS OCCUR IN VEHICLES. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODING. && LAT...LON 4057 9464 4090 9490 4090 9432 4058 9403 $$ SMALL
658 WGUS73 KDMX 011143 FFSDMX FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 643 AM CDT MON AUG 1 2016 IAC159-173-011500- /O.CON.KDMX.FF.W.0016.000000T0000Z-160801T1500Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ TAYLOR IA-RINGGOLD IA- 643 AM CDT MON AUG 1 2016 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1000 AM CDT FOR TAYLOR AND RINGGOLD COUNTIES... AT 640 AM CDT...DOPPLER RADAR INDICATED MUCH OF THE HEAVY RAIN HAD EXITED THE WARNED AREA. HOWEVER RADAR ESTIMATES SHOW THAN FOUR TO SEVEN INCHES OF RAIN MAY HAVE FALLEN OVER THE PAST SIX HOURS WITH THE HARDEST HIT AREAS BETWEEN BENTON AND MOUNT AYR IN RINGGOLD COUNTY. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY IF IT HAS NOT ALREADY. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... MOUNT AYR...BEDFORD...LENOX...CLEARFIELD...DIAGONAL...BLOCKTON... GRAVITY...SHARPSBURG...REDDING...BENTON...CONWAY...MALOY...DELPHOS... ATHELSTAN...MT AYR MUNICIPAL AIRPORT AND LAKE OF THREE FIRES STATE PARK. THE PLATTE AND GRAND RIVERS...AND THEIR SMALLER TRIBUTARIES...MAY BE AFFECTED AS WELL. PRECAUTIONARY/PREPAREDNESS ACTIONS... TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD DEATHS OCCUR IN VEHICLES. && LAT...LON 4057 9464 4090 9490 4090 9432 4058 9403 $$ SMALL
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 1, 7:36 AM CDT | Special Weather Statement | DMX | Calhoun, Carroll, Greene, Pocahontas, Sac | 54 min |
| Aug 1, 9:02 AM CDT | Flash Flood Warning | DMX | Adair, Guthrie, Madison, Ringgold, Union | 6 hr |
| Aug 1, 10:12 AM CDT | Areal Flood Warning | DMX | Ringgold, Taylor | 24 hr |
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.