Alert archive / South Dakota / Flash Flood Warnings in 1999

Flash Flood Warning 13, NWS Aberdeen, SD

September 3, 19994 counties in South Dakota

NWS Aberdeen, SD issued this flash flood warning at Sep 3, 1999, 4:01 AM CDT for 4 counties in South Dakota. It was in force for 8 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Sep 3, 1999, 4:01 AM CDT (09:01 UTC)
Expired: Sep 3, 1999, 12:00 PM CDT
In force: 8 hr
Issued by: NWS Aberdeen, SD
Area: Whole counties

Counties Brown County, SD, Edmunds County, SD, Faulk County, SD, Potter County, SD

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 9.0 hours before the alert went out and 74 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 751 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 103 m²/s²
0-3 km storm-relative helicity: 330 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KABR 030904
FFWABR
SDC013-045-049-065-069-075-107-117-119-031700-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ABERDEEN SD
401 AM CDT (301 AM MDT) FRI SEP 3 1999

THE NATIONAL WEATHER SERVICE IN ABERDEEN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  BROWN COUNTY IN NORTHEASTERN SOUTH DAKOTA
  FAULK COUNTY IN NORTHEASTERN SOUTH DAKOTA
  EDMUNDS COUNTY IN NORTHEASTERN SOUTH DAKOTA
  POTTER COUNTY IN NORTH CENTRAL SOUTH DAKOTA
  STANLEY COUNTY IN CENTRAL SOUTH DAKOTA
  JONES COUNTY IN CENTRAL SOUTH DAKOTA
  SULLY COUNTY IN CENTRAL SOUTH DAKOTA
  HUGHES COUNTY IN CENTRAL SOUTH DAKOTA
  HYDE COUNTY IN CENTRAL SOUTH DAKOTA

* UNTIL 1200 PM CDT (1100 AM MDT)

*  THUNDERSTORMS OVERNIGHT HAVE PRODUCED FROM 2.75 TO OVER 5 INCHES
  OF RAIN. MOST OF THIS RAIN FELL IN A SHORT PERIOD OF TIME.
  MORE THUNDERSTORM ACTIVITY IS EXPECTED THIS MORNING. AN ADDITIONAL
  1 TO 3 INCHES OF RAIN MAY FALL WITH THESE STORMS.

 THIS WARNING IS AN EXTENSION OF THE PREVIOUS FLASH FLOOD WARNING.

DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD!

HINTZ


&

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Aberdeen, SD wrote its last area forecast discussion before this flash flood warning went out at Sep 3, 3:15 AM CDT, 46 minutes earlier.

Area forecast discussion, Sep 3, 3:15 AM CDT, 46 minutes before

AREA FORECAST DISCUSSION FOR CENTRAL/NORTHCENTRAL AND NORTHEAST
SOUTH DAKOTA AND WEST CENTRAL MINNESOTA
NATIONAL WEATHER SERVICE ABERDEEN SD
315 AM CDT FRI SEP 3 1999

STALLED SFC BOUNDARY CONTS TO PLAGUE OUR CWA. HEAVY RAIN REPORTED
THROUGH MUCH OF CENTRAL INTO PARTS OF NERN SD OVERNIGHT. LOOKING AT
REGIONAL MOSIAC OF 88DS...ANOTHER BATCH OF TSRA SLIDING NORTHEAST
OUT OF NEB AIMED RIGHT FOR CWA. CURRENT KABR 88D SHOWING LINE OF
TSRA DEVELOPING FROM NORTHERN BROWN COUNTY TO JUST WEST OF HURON.
THIS LINE LOOKS LIKE IT IS MOVING NNE. WITH THIS IN MIND...WILL KEEP
CURRENT FLASH FLOOD WARNING GOING UNTIL 17Z FOR AFFECTED COUNTIES.
MODELS PUSH FRONT SLIGHTLY TO THE EAST TODAY AND TONIGHT...MEANING
THAT WE CAN EXPECT SAME SCENERIO TO SET UP TONIGHT INTO FRIDAY. KATY
WILL REMAIN SOUTH OF BOUNDARY TODAY...SO THEY SHOULD BE 10 TO 20
DEGREES WARMER THAN REMAINDER OF AREA. WITH SLOW NATURE OF FRONT AND
LONG WAVE TROUGH BEGINNING TO EJECT TO THE EAST...COMBINED WITH VORT
MAXS EJECTING OUT OF BASE OF TROUGH...WILL EXPAND WATCH FURTHER
EAST. NERN COUNTIES WILL BE FOR TODAY AND TONIGHT...WHILE COUNTIES
AROUND KATY WILL BE TONIGHT AND SATURDAY. MODELS SHOW CONVECTIVE
PCPN FIRING ALONG TROUGH TONIGHT WITH A LOT OF WRAP AROUND MOIST
COMING BACK INTO WRN CWA. WITH THE RAIN THAT THEY HAVE RECEIVED THIS
MORNING...AND HEAVY RAIN POSSIBLE TONIGHT...WILL EXPAND WATCH TO
INCLUDE WESTERN COUNTIES AS WELL.

.ABR...FLASH FLOOD WARNING THROUGH 17Z FOR BROWN...EDMUNDS...FAULK
      ...POTTER...SULLY...HYDE...HUGHES...STANLEY AND JONES COUNTIES.

    ...FLASH FLOOD WATCH TODAY AND TONIGHT WEST AND CENTRAL CWA.
    ...FLASH FLOOD WATCH TONIGHT AND SATURDAY FOR CLARK...HAMLIN...
      ...DEUEL...CODINGTON AND GRANT COUNTIES.

HINTZ

The office that day

Everything else NWS Aberdeen, SD issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Sep 2, 8:40 PM CDT	Severe Thunderstorm Warning	ABR	Faulk	65 min
Sep 2, 10:16 PM CDT	Flash Flood Warning	ABR	Potter, Sully	6 hr
Sep 2, 10:16 PM CDT	Flash Flood Warning	ABR	Faulk	6 hr
Sep 2, 11:01 PM CDT	Flash Flood Warning	ABR	Hughes, Jones, Stanley	5 hr
Sep 2, 11:47 PM CDT	Flash Flood Warning	ABR	Brown, Edmunds	5 hr
Sep 3, 1:09 AM CDT	Flash Flood Warning	ABR	Hyde	3 hr
Sep 3, 4:01 AM CDT	Flash Flood Warning	ABR	Hughes, Jones, Stanley, Sully	8 hr
Sep 3, 4:01 AM CDT	Flash Flood Warning	ABR	Hyde	8 hr
Sep 3, 11:52 AM CDT	Flash Flood Warning	ABR	Sully	3 hr
Sep 3, 2:44 PM CDT	Flash Flood Warning	ABR	Sully	6 hr
Sep 3, 6:23 PM CDT	Flash Flood Warning	ABR	Deuel	6 hr

Nearby

Flash Flood Warnings in South Dakota, 1999 Every flash flood warning in 1999

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.