Alert archive / Iowa / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 82, NWS Des Moines, IA

July 22, 1995Monroe County, Iowa

NWS Des Moines, IA issued this severe thunderstorm warning at Jul 22, 1995, 9:31 PM CDT for Monroe County, Iowa. It was in force for 29 min.

The area

The counties it named.

The facts

Issued
Jul 22, 1995, 9:31 PM CDT (02:31 UTC)
Expired
Jul 22, 1995, 10:00 PM CDT
In force
29 min
Issued by
NWS Des Moines, IA
Area
Whole counties

County Monroe County, IA

The radar

The Des Moines radar (KDMX), 106 km from the middle of the area, began a volume at 02:35 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

Davenport, (KDVN), launched 00:00Z, 2.5 hours before the alert went out and 208 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-pSkew-T log-p diagram, Davenport, at 00:00Z on 1995-07-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 946 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Davenport, at 00:00Z on 1995-07-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -11 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
946 J/kg
Mixed-layer CIN
-62 J/kg
Mixed-layer LCL
948 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
-11 m²/s²
0-3 km storm-relative helicity
39 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 KDSM 230233 RRA
SVRDSM
IAC135-230300-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
931 PM CDT SAT JUL 22 1995

* SEVERE THUNDERSTORM WARNING FOR
  SOUTHEASTERN MONROE COUNTY - SOUTH CENTRAL IOWA

* UNTIL 1000 PM CDT
 
* SOME TOWNS AFFECTED
    OPEN COUNTRY BETWEEN MORAVIA AND BLAKESBURG

* AT 925 PM CDT THE MONROE COUNTY SHERIFF REPORTED A SEVERE
THUNDERSTORM 10 MILES  SOUTHEAST OF ALBIA OR 20 MILES SOUTHWEST OF
OTTUMWA MOVING EAST AT 10 MPH.  GOLFBALL HAIL WAS REPORTED AND RADAR
CONTINUES TO INDICATE LARGE HAIL AND POSSIBLE DAMAGING WINDS.

* THE STORM WILL BE NEAR BLAKESBURG AT 950 PM.

THIS IS A DANGEROUS STORM.  DO NOT GO OUTDOORS.




JUNGBLUTH

What forecasters said that day

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

In the hours before

Special weather statement, Jul 22, 4:31 PM CDT, 5 hours before
IAZ008>011-018-019-029-222300-

SPECIAL WEATHER STATMENT
NATIONAL WEATHER SERVICE WATERLOO IA
431 PM CDT SAT JUL 22 1995

FUNNEL CLOUDS HAVE BEEN SIGHTED DURING THE PAST HOUR NEAR LIME SPRINGS
IN HOWARD COUNTY.  OTHERS ARE POSSIBLE IN NORTHEAST IOWA.

ATMOSPHERIC CONDITIONS EXIST ACROSS PARTS OF IOWA TODAY THAT FAVORS
THE FORMATION OF A SPECIES OF FUNNEL CLOUD COMMONLY CALLED COLD AIR
FUNNELS.  THEY ARE USUALLY QUITE SMALL AND ARE NOT AS VIOLENT AS THOSE
ASSOCIATED WITH SEVERE THUNDESTORMS.  STUDIES OF COLD AIR FUNNELS SHOW
THAT THEY RARELY TOUCH THE GROUND.  THEY NORMALLY PROTRUDE A FEW HUNDRED
FEET DOWNWARD FROM THE PARENT CLOUD..ROTATE OR SPIN LIKE A TOP..AND LAST
FOR A FEW MINUTES BEFORE DISSIPATING.  INFREQUENTLY..COLD AIR FUNNELS
HAVE BEEN OBSERVED FOR AS LONG AS AN HOUR.

PEOPLE IN THE AREA SHOULD NOT BECOME UNDULY ALARMED BUT SHOULD REMAIN ON
THE ALERT AND MOVE TO A PLACE OF SAFETY IF A FUNNEL APPROACHES THE
GROUND..OR A LOCAL WARNING IS ISSUED.

COGIL
Local storm report, Jul 22, 7:30 PM CDT, 2 hours 1 minute before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WATERLOO IA
730 PM CDT SAT JUL 22 1995

TIME(CDT)        ...CITY LOCATION...     ST   ...EVENT/REMARKS...
DATE(CDT)        ...COUNTY...

502 PM           MARBLE ROCK             IA    30-40 MPH WIND AND
07/22/95         FLOYD                         1/2 INCH HAIL.

506 PM           3 E OF MARBLE ROCK      IA    1/2 - 3/4 INCH HAIL
07/22/95         FLOYD                         COVERED THE GROUND TO
                                               2 INCHES DEEP. CROP
                                               DAMAGE REPORTED. TREE
                                               BRANCHES HAD ALSO BEEN
                                               SNAPPED OFF.

618 PM           OELWEIN                 IA    40-50 MPH WINDS AND
07/22/95         FAYETTE                       PEA SIZE HAIL.
                                                                      .
704PM            STRAWBERRY POINT        IA    PEA SIZE HAIL AND WIND
07/22/95         CLAYTON                       UP TO 40 MPH.
Local storm report, Jul 22, 7:32 PM CDT, 1 hour 59 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WATERLOO IA
730 PM CDT SAT JUL 22 1995

TIME(CDT)        ...CITY LOCATION...     ST   ...EVENT/REMARKS...
DATE(CDT)        ...COUNTY...

502 PM           MARBLE ROCK             IA    30-40 MPH WIND AND
07/22/95         FLOYD                         1/2 INCH HAIL.

506 PM           3 E OF MARBLE ROCK      IA    1/2 - 3/4 INCH HAIL
07/22/95         FLOYD                         COVERED THE GROUND TO
                                               2 INCHES DEEP. CROP
                                               DAMAGE REPORTED. TREE
                                               BRANCHES HAD ALSO BEEN
                                               SNAPPED OFF.

618 PM           OELWEIN                 IA    40-50 MPH WINDS AND
07/22/95         FAYETTE                       PEA SIZE HAIL.
                                                                      .
704PM            STRAWBERRY POINT        IA    PEA SIZE HAIL AND WIND
07/22/95         CLAYTON                       UP TO 40 MPH.
Local storm report, Jul 22, 7:33 PM CDT, 1 hour 58 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WATERLOO IA
733 PM CDT SAT JUL 22 1995

TIME(CDT)        ...CITY LOCATION...     ST   ...EVENT/REMARKS...
DATE(CDT)        ...COUNTY...

502 PM           MARBLE ROCK             IA    30-40 MPH WIND AND
07/22/95         FLOYD                         1/2 INCH HAIL.

506 PM           3 E OF MARBLE ROCK      IA    1/2 - 3/4 INCH HAIL
07/22/95         FLOYD                         COVERED THE GROUND TO
                                               2 INCHES DEEP. CROP
                                               DAMAGE REPORTED. TREE
                                               BRANCHES HAD ALSO BEEN
                                               SNAPPED OFF.

618 PM           OELWEIN                 IA    40-50 MPH WINDS AND
07/22/95         FAYETTE                       PEA SIZE HAIL.
                                                                      .
704PM            STRAWBERRY POINT        IA    PEA SIZE HAIL AND WIND
07/22/95         CLAYTON                       UP TO 40 MPH.
Local storm report, Jul 22, 7:34 PM CDT, 1 hour 57 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WATERLOO IA
733 PM CDT SAT JUL 22 1995

TIME(CDT)        ...CITY LOCATION...     ST   ...EVENT/REMARKS...
DATE(CDT)        ...COUNTY...

502 PM           MARBLE ROCK             IA    30-40 MPH WIND AND
07/22/95         FLOYD                         1/2 INCH HAIL.

506 PM           3 E OF MARBLE ROCK      IA    1/2 - 3/4 INCH HAIL
07/22/95         FLOYD                         COVERED THE GROUND TO
                                               2 INCHES DEEP. CROP
                                               DAMAGE REPORTED. TREE
                                               BRANCHES HAD ALSO BEEN
                                               SNAPPED OFF.

618 PM           OELWEIN                 IA    40-50 MPH WINDS AND
07/22/95         FAYETTE                       PEA SIZE HAIL.
                                                                      .
704PM            STRAWBERRY POINT        IA    PEA SIZE HAIL AND WIND
07/22/95         CLAYTON                       UP TO 40 MPH.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 22, 8:53 PM CDTSevere Thunderstorm WarningDMXAppanoose32 min
Jul 22, 9:24 PM CDTSevere Thunderstorm WarningDMXAppanoose23 min

Nearby

Severe Thunderstorm Warnings in Iowa, 1995Every severe thunderstorm warning in 1995

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.