Alert archive / Iowa / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 75, NWS Des Moines, IA

June 13, 2000Davis County, Wapello County, Iowa

NWS Des Moines, IA issued this severe thunderstorm warning at Jun 13, 2000, 2:13 PM CDT for Davis County, Wapello County, Iowa. It was in force for 32 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued: Jun 13, 2000, 2:13 PM CDT (19:13 UTC)
Expired: Jun 13, 2000, 2:45 PM CDT
In force: 32 min
Issued by: NWS Des Moines, IA
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Davis County, IA, Wapello County, IA

The radar

The Des Moines radar (KDMX), 148 km from the middle of the area, began a volume at 19:14 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 13, 11:45 AM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 7.2 hours before the alert went out and 174 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: 671 J/kg
Mixed-layer CIN: -140 J/kg
Mixed-layer LCL: 449 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 356 m²/s²
0-3 km storm-relative helicity: 366 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 5.1

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KDMX 131914
SVRDSM
IAC051-179-131945-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
213 PM CDT TUE JUN 13 2000

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN DAVIS COUNTY IN SOUTHEAST IOWA
  EASTERN WAPELLO COUNTY IN SOUTHEAST IOWA

* UNTIL 245 PM

* AT 209 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER FLORIS...OR ABOUT 14 MILES SOUTHEAST OF
  OTTUMWA...MOVING NORTHEAST AT 70 MPH.

* THE SEVERE THUNDERSTORM WILL BE...
  7 MILES SOUTHEAST OF AGENCY AND ELDON AROUND 220 PM

DAMAGING HAIL UP TO THE SIZE OF GOLFBALLS IS LIKELY IN THE WARNED
AREA.

HURRICANE FORCE WINDS OF 70 TO 80 MILES AN HOUR ARE LIKELY IN THE
WARNED AREA.

INTENSE RAINFALL CAN ACCOMPANY SEVERE THUNDERSTORMS...WHICH CAN
QUICKLY FLOOD LOW LYING AREAS AND ROADWAYS. DO NOT DRIVE INTO AREAS
WHERE WATER COVERS THE ROAD.

LAT...LON 4072 9251 4073 9220 4116 9219 4116 9232

SEARCY
NNNN

The office that day

Everything else NWS Des Moines, IA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 13, 11:50 AM CDT	Severe Thunderstorm Warning	DMX	Calhoun, Pocahontas	25 min
Jun 13, 12:27 PM CDT	Severe Thunderstorm Warning	DMX	Lucas	33 min
Jun 13, 12:57 PM CDT	Severe Thunderstorm Warning	DMX	Polk	33 min
Jun 13, 1:13 PM CDT	Severe Thunderstorm Warning	DMX	Story	47 min
Jun 13, 1:34 PM CDT	Severe Thunderstorm Warning	DMX	Hamilton, Wright	41 min
Jun 13, 1:44 PM CDT	Severe Thunderstorm Warning	DMX	Marshall	31 min
Jun 13, 2:09 PM CDT	Severe Thunderstorm Warning	DMX	Grundy, Tama	36 min
Jun 13, 2:31 PM CDT	Severe Thunderstorm Warning	DMX	Black Hawk, Bremer	44 min
Jun 13, 4:28 PM CDT	Severe Thunderstorm Warning	DMX	Palo Alto	32 min
Jun 13, 4:34 PM CDT	Severe Thunderstorm Warning	DMX	Cass	26 min
Jun 13, 4:56 PM CDT	Severe Thunderstorm Warning	DMX	Kossuth	34 min
Jun 13, 5:01 PM CDT	Severe Thunderstorm Warning	DMX	Adams, Cass	44 min
Jun 13, 5:21 PM CDT	Severe Thunderstorm Warning	DMX	Webster	39 min
Jun 13, 5:40 PM CDT	Severe Thunderstorm Warning	DMX	Adair, Adams	35 min
Jun 13, 6:19 PM CDT	Severe Thunderstorm Warning	DMX	Hamilton, Story	41 min
Jun 13, 6:37 PM CDT	Severe Thunderstorm Warning	DMX	Hardin	38 min
Jun 13, 6:57 PM CDT	Tornado Warning	DMX	Marshall	33 min

Nearby

Severe Thunderstorm Warnings in Iowa, 2000 Every severe thunderstorm warning in 2000

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.