Alert archive / Iowa / Flash Flood Watches in 2015
Flash Flood Watch 1, NWS Des Moines, IA
NWS Des Moines, IA issued this flash flood watch at Jun 6, 2015, 3:37 PM CDT for 17 counties in Iowa. It took effect at Jun 6, 2015, 8:00 PM CDT. It was in force for 8 hr.
The area
The counties it named.
The facts
- Issued
- Jun 6, 2015, 3:37 PM CDT (20:37 UTC)
- In effect from
- Jun 6, 2015, 8:00 PM CDT
- Expired
- Jun 7, 2015, 3:38 AM CDT
- In force
- 8 hr
- Issued by
- NWS Des Moines, IA
- Flood severity
- None
Counties Audubon County, IA, Boone County, IA, Calhoun County, IA, Carroll County, IA, Crawford County, IA, Dallas County, IA, Greene County, IA, Guthrie County, IA, Hamilton County, IA, Humboldt County, IA, Palo Alto County, IA, Pocahontas County, IA, Polk County, IA, Sac County, IA, Story County, IA, Webster County, IA, Wright County, IA
The radar
The Des Moines radar (KDMX), 76 km from the middle of the area, began a volume at 20:39 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
Omaha, NE (KOAX), launched 12:00Z, 8.6 hours before the alert went out and 195 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
- 4 J/kg
- Mixed-layer CIN
- -136 J/kg
- Mixed-layer LCL
- 1210 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 18 m²/s²
- 0-3 km storm-relative helicity
- 87 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this flash flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Des Moines, IA wrote its last area forecast discussion before this flash flood watch went out at Jun 6, 3:31 PM CDT, 6 minutes earlier.
Area forecast discussion, Jun 6, 3:31 PM CDT, 6 minutes before
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</html>Hazardous weather outlook, Jun 6, 5:14 AM CDT, 10 hours 23 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE DES MOINES IA 514 AM CDT SAT JUN 6 2015 IAZ006-007-016-017-026>028-038-039-050-062-075-086-097-071015- WINNEBAGO-WORTH-HANCOCK-CERRO GORDO-FRANKLIN-BUTLER-BREMER-GRUNDY- BLACK HAWK-TAMA-POWESHIEK-MAHASKA-WAPELLO-DAVIS- 514 AM CDT SAT JUN 6 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA. .DAY ONE...TODAY AND TONIGHT SCATTERED THUNDERSTORMS ARE POSSIBLE LATE THIS AFTERNOON AND ESPECIALLY TONIGHT. A FEW SEVERE STORMS ARE POSSIBLE TONIGHT. DAMAGING WIND AND LARGE HAIL WOULD BE THE THREATS FROM THESE STORMS ALONG WITH HEAVY RAINFALL. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY THERE IS A CHANCE OF THUNDERSTORMS AGAIN ON SUNDAY. SOME STORMS IN THE AFTERNOON AND EARLY EVENING COULD BE SEVERE ACROSS THE EAST AND SOUTH. HEAVY RAIN IS AGAIN POSSIBLE WITH ANY THUNDERSTORM. THERE WILL BE ADDITIONAL THUNDERSTORM CHANCES FROM TIME TO TIME THROUGHOUT THE WEEK BUT THE THREAT OF SEVERE STORMS IS LOW THROUGH WEDNESDAY. SOME STORMS THURSDAY AND FRIDAY MAY BE SEVERE BUT IT IS TOO EARLY TO DETERMINE SPECIFIC THREATS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED TONIGHT AND AT TIMES ON SUNDAY. IAZ004-005-015-023>025-033>037-044>049-057>061-070>074-081>085- 092>096-071015- EMMET-KOSSUTH-PALO ALTO-POCAHONTAS-HUMBOLDT-WRIGHT-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-CRAWFORD-CARROLL-GREENE-BOONE-STORY- MARSHALL-AUDUBON-GUTHRIE-DALLAS-POLK-JASPER-CASS-ADAIR-MADISON- WARREN-MARION-ADAMS-UNION-CLARKE-LUCAS-MONROE-TAYLOR-RINGGOLD- DECATUR-WAYNE-APPANOOSE- 514 AM CDT SAT JUN 6 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA. .DAY ONE...TODAY AND TONIGHT SCATTERED THUNDERSTORMS ARE POSSIBLE THIS MORNING. THE RISK OF SEVERE STORMS IS LOW. ADDITIONAL THUNDERSTORMS ARE LIKELY LATE THIS AFTERNOON AND ESPECIALLY TONIGHT. LARGE HAIL AND DAMAGING WIND ARE THE MAIN THREATS BUT AN ISOLATED TORNADO CANNOT BE RULED OUT ACROSS THE FAR WESTERN OUTLOOK AREA LATE THIS AFTERNOON INTO EARLY EVENING. HEAVY RAINFALL IS POSSIBLE WITH ANY THUNDERSTORM. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY THERE IS A CHANCE OF THUNDERSTORMS AGAIN ON SUNDAY. SOME STORMS IN THE AFTERNOON AND EARLY EVENING COULD BE SEVERE ACROSS THE EAST AND SOUTH. HEAVY RAIN IS AGAIN POSSIBLE WITH ANY THUNDERSTORM. THERE WILL BE ADDITIONAL THUNDERSTORM CHANCES FROM TIME TO TIME THROUGHOUT THE WEEK BUT THE THREAT OF SEVERE STORMS IS LOW THROUGH WEDNESDAY. SOME STORMS THURSDAY AND FRIDAY MAY BE SEVERE BUT IT IS TOO EARLY TO DETERMINE SPECIFIC THREATS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED FROM LATE THIS AFTERNOON THROUGH THIS EVENING AND AT TIMES ON SUNDAY. FAB
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 5, 9:24 PM CDT | Special Weather Statement | DMX | Lucas | 51 min |
| Jun 6, 3:59 PM CDT | Special Weather Statement | DMX | Sac | 61 min |
Nearby
Flash Flood Watches in Iowa, 2015Every flash flood watch 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.