Alert archive / Iowa / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 32, NWS Des Moines, IA

May 13, 1995Floyd County, Iowa

NWS Des Moines, IA issued this severe thunderstorm warning at May 13, 1995, 5:23 PM CDT for Floyd County, Iowa. It was in force for 32 min.

The area

The counties it named.

The facts

Issued: May 13, 1995, 5:23 PM CDT (22:23 UTC)
Expired: May 13, 1995, 5:55 PM CDT
In force: 32 min
Issued by: NWS Des Moines, IA
Area: Whole counties

County Floyd County, IA

The nearest sounding before it

Minneapolis, MN (KSTC), launched 12:00Z, 10.4 hours before the alert went out and 209 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: 631 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 161 m²/s²
0-3 km storm-relative helicity: 206 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 KALO 132223
SVRALO
IAC067-132315-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE WATERLOO IA
523 PM CDT SAT MAY 13 1995
 
THE NATIONAL WEATHER SERVICE IN WATERLOO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  615 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTH CENTRAL IOWA
 
   ...FLOYD COUNTY
 
AT 5:20 PM...NATIONAL WEATHER SERVICE RADAR IN WATERLOO INDICATED A
SEVERE THUNDERSTORM SOUTH OF DOUGHERTY OR 25 MILES SOUTHEAST OF MASON
CITY. THIS STORM WAS MOVING NORTHEAST AT 35 MPH AND WILL AFFECT THE
COMMUNITIES OF MARBLE ROCK...ROCKFORD AND CHARLES CITY.
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER
SEVERE THUNDERSTOTRMS CAN PRODUCE TORNADOES WITH LITTLE OR NO
ADVANCE WARNING. MOVE TO THE CENTER OF THE HOUSE AND STAY AWAY
FROM WINDOWS. BE READY TO ACT QUICKLY IF A TORNADO DEVELOPS.
 
 
DERNER

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, May 13, 2:19 PM CDT, 3 hours 4 minutes before

IAZ017-131955-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
220 PM CDT SAT MAY 13 1995

...SEVERE THUNDERSTORM WARNING FOR WESTERN CERRO GORDO COUNTY UNTIL 240
PM CDT...

AT 218 PM CDT DOPPLER RADAR INDICATES THAT A SEVERE THUNDERSTORM WITH
GOLFBALL SIZED HAIL WILL MOVE TO NEAR CLEAR LAKE BY 225 PM CDT.
BOATERS SHOULD TAKE SHELTER IMMEDIATELY AS THIS STORM ALSO CONTAINS
DEADLY LIGHTNING AND STRONG WINDS.

 BELLES

Local storm report, May 13, 2:25 PM CDT, 2 hours 58 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
224 PM CDT SAT MAY 13 1995

TIME(CDT)   .....CITY LOCATION.....  STATE  ...EVENT/REMARKS...
            ....COUNTY LOCATION....
155 PM     8 NE GOLDFIELD            IA     2 INCH DIAMETER HAIL
           NORTHERN WRIGHT CO

158 PM     7 N OF GOLDFIELD          IA     1 INCH DIAMETER HAIL
           NORTHERN WRIGHT CO

207 PM     NEAR KLEMME               IA     1 INCH DIAMETER HAIL
           SOUTHERN HANCOCK CO

212 PM     NEAR KLEMME               IA     GOLFBALL SIZED HAIL
           SOUTHERN HANCOCK CO

PYTLAK
&

Local storm report, May 13, 2:33 PM CDT, 2 hours 50 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
231 PM CDT SAT MAY 13 1995

TIME(CDT)   .....CITY LOCATION.....  STATE  ...EVENT/REMARKS...
            ....COUNTY LOCATION....
226 PM     3 S OF VENTURA            IA     1 INCH DIAMETER HAIL
           WESTERN CERRO GORDO CO

PYTLAK
&

Local storm report, May 13, 3:01 PM CDT, 2 hours 22 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
300 PM CDT SAT MAY 13 1995

TIME(CDT)   .....CITY LOCATION.....  STATE  ...EVENT/REMARKS...
            ....COUNTY LOCATION....
240 PM     JUST S|W OF MASON CITY     IA     FUNNEL CLOUD
           CENTRAL CERRO GORDO CO

257 PM     ALEXANDER                 IA     1 INCH DIAMETER HAIL
           NORTHWEST FRANKLIN CO

PYTLAK
&

Special weather statement, May 13, 4:08 PM CDT, 1 hour 15 minutes before

IAZ047-060-073-084-095-132215-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
407 PM CDT SAT MAY 13 1995

THE TORNADO WATCH HAS BEEN CANCELLED FOR BOONE...POLK...WARREN...LUCAS
AND WAYNE COUNTIES. THE THREAT OF SEVERE WEATHER HAS ENDED FOR THESE
AREAS.

TORNADO WATCHES NUMBERS 368 AND 369 REMAIN IN EFFECT FOR THE REST OF
NORTHWEST AND THE EASTERN HALF OF IOWA UNTIL 900 PM CDT. THE WATCH IS
NORTHEAST OF A LINE FROM DENISON...TO VWEBSTER CITY...TO AMES...TO
CENTERVILLE.

PYTLAK

Special weather statement, May 13, 5:10 PM CDT, 13 minutes before

IAZ026-132245-

SEVERE WEATHER OUTLOOK FOR IOWA
NATIONAL WEATHER SERVICE DES MOINES IA
511 PM CDT SAT MAY 13 1995

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR FRANKLIN
COUNTY UNTIL 530 PM CDT...

A SEVERE THUNDERSTORM WAS NEARING HAMPTON...OR 30 MILES SOUTH OF MASON
CITY.  THIS STORM PRODUCED GOLFBALL SIZED HAIL IN EXTREME WESTERN
HAMILTON COUNTY AT 501 PM.  THE STORM WILL MOVE THROUGH HAMPTON AND
INTO HANSELL BY 520 PM.

MOVE INDOOR:S IMMEDIATELY. GOLFBALL SIZE HAIL REMAINS LIKELY.

PYTLAK

The office that day

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

Issued	Product	Office	Counties	Lasted
May 13, 4:27 AM CDT	Severe Thunderstorm Warning	DMX	Davis	33 min
May 13, 1:58 PM CDT	Severe Thunderstorm Warning	DMX	Hancock, Wright	32 min
May 13, 2:11 PM CDT	Severe Thunderstorm Warning	DMX	Cerro Gordo	29 min
May 13, 2:25 PM CDT	Severe Thunderstorm Warning	DMX	Cerro Gordo	30 min
May 13, 3:16 PM CDT	Severe Thunderstorm Warning	DMX	Floyd	44 min
May 13, 4:52 PM CDT	Severe Thunderstorm Warning	DMX	Franklin	33 min
May 13, 4:54 PM CDT	Severe Thunderstorm Warning	DMX	Franklin	36 min
May 13, 4:54 PM CDT	Severe Thunderstorm Warning	DMX	Wright	8 min
May 13, 5:23 PM CDT	Severe Thunderstorm Warning	DMX	Butler	17 min
May 13, 5:39 PM CDT	Severe Thunderstorm Warning	DMX	Chickasaw	31 min

Nearby

Severe Thunderstorm Warnings in Iowa, 1995 Every 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.