Alert archive / Missouri / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 18, NWS St. Louis, MO

April 7, 20154 counties in Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at Apr 7, 2015, 7:56 AM CDT for 4 counties in Missouri. It was in force for 49 min. 18 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Apr 7, 2015, 7:56 AM CDT (12:56 UTC)
Expired: Apr 7, 2015, 8:45 AM CDT
In force: 49 min
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Hail: 1.75 in
Wind: 50.0 mph

Counties Franklin County, MO, Saint Charles County, MO, Saint Louis County, MO, Warren County, MO

The radar

The St Louis radar (KLSX), 28 km from the middle of the area, began a volume at 12:55 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.

What was reported inside it

Time	Report	Where	Remark
Apr 7, 7:56 AM CDT	HAIL 1.75	6 Ssw Wright City, MO	ESTIMATED SIZE FROM TWITTER POST IN THE INNSBROOK AREA.
Apr 7, 7:58 AM CDT	HAIL 1.5	5 S Wright City, MO	BETWEEN WRIGHT CITY AND INNSBROOK... RELAYED BY KSDK METEOROLOGIST.
Apr 7, 8:00 AM CDT	HAIL 1	Warrenton, MO	HAIL SIZED RANGED FROM DIME TO QUARTER.
Apr 7, 8:02 AM CDT	HAIL 1.75	Warrenton, MO
Apr 7, 8:13 AM CDT	HAIL 0.5	Marthasville, MO
Apr 7, 8:19 AM CDT	HAIL 0.5	Wentzville, MO	HAIL SIZE RANGED FROM PEA TO MARBLE.
Apr 7, 8:21 AM CDT	HAIL 0.25	2 S Wentzville, MO	PEA-SIZED HAIL.
Apr 7, 8:28 AM CDT	HAIL 1	Dutzow, MO	HAIL SIZE RANGED FROM DIME TO QUARTER.
Apr 7, 8:29 AM CDT	HAIL 0.5	Dutzow, MO	HAIL SIZE RANGED FROM PEA TO MARBLE.
Apr 7, 8:30 AM CDT	HAIL 0.5	2 Nne Dutzow, MO	CALLED THE SPOTTER IN HIS VEHICLE NEAR THE INTERSECTION OF HIGHWAYS TT AND T. COULD HEAR THE HAIL OVER THE PHONE.
Apr 7, 8:30 AM CDT	HAIL 1	2 Nnw Marthasville, MO
Apr 7, 8:32 AM CDT	HAIL 0.75	New Melle, MO	HAIL SIZE RANGED FROM MARBLE TO PENNY.
Apr 7, 8:35 AM CDT	HAIL 2	4 E Marthasville, MO
Apr 7, 8:38 AM CDT	HAIL 1.75	Dutzow, MO
Apr 7, 8:39 AM CDT	HAIL 1	Marthasville, MO	HAIL SIZE RANGED FROM NICKEL TO QUARTER.
Apr 7, 8:41 AM CDT	HAIL 1	Dutzow, MO
Apr 7, 8:52 AM CDT	HAIL 0.75	Augusta, MO	HAIL WAS BETWEEN AUGUSTA AND DEFIANCE.
Apr 7, 8:53 AM CDT	HAIL 0.5	2 Sw Lake St. Louis, MO	PARKGATE DRIVE.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched 10 storm reports to this severe thunderstorm warning; the first came 0 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 0.9 hours before the alert went out and 262 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: 134 J/kg
Mixed-layer CIN: -199 J/kg
Mixed-layer LCL: 443 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 23 m²/s²
0-3 km storm-relative helicity: 87 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.

362 
WUUS53 KLSX 071256
SVRLSX
MOC071-183-189-219-071345-
/O.NEW.KLSX.SV.W.0018.150407T1256Z-150407T1345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
756 AM CDT TUE APR 7 2015

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN FRANKLIN COUNTY IN EAST CENTRAL MISSOURI...
  WESTERN ST. CHARLES COUNTY IN EAST CENTRAL MISSOURI...
  WEST CENTRAL ST. LOUIS COUNTY IN EAST CENTRAL MISSOURI...
  EASTERN WARREN COUNTY IN EAST CENTRAL MISSOURI...

* UNTIL 845 AM CDT

* AT 752 AM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR TRUESDALE...
  AND MOVING EAST AT 45 MPH.

  HAZARD...GOLF BALL SIZE HAIL.

  SOURCE...TRAINED WEATHER SPOTTERS REPORTED GOLFBALL SIZE HAIL JUST 
           SOUTH OF WARRENTON.

  IMPACT...PEOPLE AND ANIMALS OUTDOORS WILL BE INJURED. EXPECT DAMAGE
           TO ROOFS...SIDING...WINDOWS AND VEHICLES.

* LOCATIONS IMPACTED INCLUDE...
  WRIGHT CITY...WENTZVILLE...LAKE ST. LOUIS...ST. PAUL...DARDENNE
  PRAIRIE...O'FALLON...COTTLEVILLE...WELDON SPRING...WILDWOOD...ST.
  PETERS...MARTHASVILLE...DUTZOW...NEW MELLE...AUGUSTA...DEFIANCE...
  FORISTELL...FLINT HILL...MATSON AND KAMPVILLE.

THIS WARNING INCLUDES BABLER MEMORIAL STATE PARK.

THIS WARNING ALSO INCLUDES...
INTERSTATE 70 IN MISSOURI FROM EXIT 193 TO EXIT 225.
INTERSTATE 44 NEAR EXIT 261.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. PREPARE IMMEDIATELY FOR LARGE DESTRUCTIVE
HAIL CAPABLE OF PRODUCING SIGNIFICANT DAMAGE. PEOPLE OUTSIDE SHOULD
MOVE TO A SHELTER...INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS.

&&

LAT...LON 3868 9126 3887 9113 3886 9054 3849 9068
      3861 9117
TIME...MOT...LOC 1255Z 281DEG 38KT 3875 9107

HAIL...1.75IN
WIND...<50MPH

$$

GKS

3 follow-up statements

661 
WWUS53 KLSX 071312
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
812 AM CDT TUE APR 7 2015

MOC071-183-189-219-071345-
/O.CON.KLSX.SV.W.0018.000000T0000Z-150407T1345Z/
FRANKLIN MO-ST. CHARLES MO-ST. LOUIS MO-WARREN MO-
812 AM CDT TUE APR 7 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EASTERN
WARREN...WEST CENTRAL ST. LOUIS...WESTERN ST. CHARLES AND
NORTHEASTERN FRANKLIN COUNTIES UNTIL 845 AM CDT...

AT 810 AM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR
MARTHASVILLE...AND MOVING EAST AT 45 MPH.

HAZARD...TENNIS BALL SIZE HAIL.

SOURCE...TRAINED WEATHER SPOTTERS. NUMEROUS REPORTS OF GOLFBALL SIZE 
         HAIL.

IMPACT...PEOPLE AND ANIMALS OUTDOORS WILL BE INJURED. EXPECT DAMAGE
         TO ROOFS...SIDING...WINDOWS AND VEHICLES.

LOCATIONS IMPACTED INCLUDE...
WENTZVILLE...LAKE ST. LOUIS...ST. PAUL...DARDENNE PRAIRIE...
O'FALLON...COTTLEVILLE...WELDON SPRING...WILDWOOD...ST. PETERS...
DUTZOW...NEW MELLE...AUGUSTA...DEFIANCE...FORISTELL...FLINT HILL...
MATSON AND KAMPVILLE.

THIS WARNING INCLUDES BABLER MEMORIAL STATE PARK.

THIS WARNING ALSO INCLUDES...
INTERSTATE 70 IN MISSOURI FROM EXIT 199 TO EXIT 225.
INTERSTATE 44 NEAR EXIT 261.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. PREPARE IMMEDIATELY FOR LARGE DESTRUCTIVE
HAIL CAPABLE OF PRODUCING SIGNIFICANT DAMAGE. PEOPLE OUTSIDE SHOULD
MOVE TO A SHELTER...INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS.

&&

LAT...LON 3867 9122 3887 9108 3886 9054 3849 9068
      3861 9117
TIME...MOT...LOC 1312Z 281DEG 38KT 3868 9102

HAIL...2.50IN
WIND...<50MPH

$$

GKS

568 
WWUS53 KLSX 071330
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
830 AM CDT TUE APR 7 2015

MOC071-183-189-219-071345-
/O.CON.KLSX.SV.W.0018.000000T0000Z-150407T1345Z/
FRANKLIN MO-ST. CHARLES MO-ST. LOUIS MO-WARREN MO-
830 AM CDT TUE APR 7 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
WARREN...WEST CENTRAL ST. LOUIS...WESTERN ST. CHARLES AND
NORTHEASTERN FRANKLIN COUNTIES UNTIL 845 AM CDT...

AT 826 AM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR NEW MELLE...
AND MOVING EAST AT 45 MPH.

HAZARD...GOLF BALL SIZE HAIL.

SOURCE...TRAINED WEATHER SPOTTERS. QUARTER SIZE HAIL HAS BEEN 
         REPORTED IN DUTZOW.

IMPACT...PEOPLE AND ANIMALS OUTDOORS WILL BE INJURED. EXPECT DAMAGE
         TO ROOFS...SIDING...WINDOWS AND VEHICLES.

LOCATIONS IMPACTED INCLUDE...
LAKE ST. LOUIS...ST. PAUL...DARDENNE PRAIRIE...O'FALLON...
COTTLEVILLE...WELDON SPRING...WILDWOOD...ST. PETERS...DEFIANCE...
MATSON AND KAMPVILLE.

THIS WARNING INCLUDES BABLER MEMORIAL STATE PARK.

THIS WARNING ALSO INCLUDES...
INTERSTATE 70 IN MISSOURI FROM EXIT 203 TO EXIT 225.
INTERSTATE 44 NEAR EXIT 261.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. PREPARE IMMEDIATELY FOR LARGE DESTRUCTIVE
HAIL CAPABLE OF PRODUCING SIGNIFICANT DAMAGE. PEOPLE OUTSIDE SHOULD
MOVE TO A SHELTER...INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS.

&&

LAT...LON 3867 9113 3887 9097 3886 9054 3849 9068
      3860 9115
TIME...MOT...LOC 1330Z 281DEG 38KT 3865 9085

HAIL...1.75IN
WIND...<50MPH

$$

GKS

164 
WWUS53 KLSX 071340
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
840 AM CDT TUE APR 7 2015

MOC071-183-189-219-071345-
/O.CON.KLSX.SV.W.0018.000000T0000Z-150407T1345Z/
FRANKLIN MO-ST. CHARLES MO-ST. LOUIS MO-WARREN MO-
840 AM CDT TUE APR 7 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
WARREN...WEST CENTRAL ST. LOUIS...SOUTHWESTERN ST. CHARLES AND
NORTHEASTERN FRANKLIN COUNTIES UNTIL 845 AM CDT...

AT 839 AM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR AUGUSTA...AND
MOVING EAST AT 25 MPH.

HAZARD...GOLF BALL SIZE HAIL.

SOURCE...TRAINED WEATHER SPOTTERS. SEVERAL REPORTS OF UP TO 2 INCH 
         HAIL.

IMPACT...PEOPLE AND ANIMALS OUTDOORS WILL BE INJURED. EXPECT DAMAGE
         TO ROOFS...SIDING...WINDOWS AND VEHICLES.

LOCATIONS IMPACTED INCLUDE...
WILDWOOD...DARDENNE PRAIRIE...LAKE ST. LOUIS...WELDON SPRING...
O'FALLON...COTTLEVILLE...ST. PETERS...NEW MELLE...DEFIANCE AND
MATSON.

THIS WARNING INCLUDES BABLER MEMORIAL STATE PARK.

THIS WARNING ALSO INCLUDES...
INTERSTATE 70 IN MISSOURI FROM EXIT 209 TO EXIT 210.
INTERSTATE 44 NEAR EXIT 261.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. PREPARE IMMEDIATELY FOR LARGE DESTRUCTIVE
HAIL CAPABLE OF PRODUCING SIGNIFICANT DAMAGE. PEOPLE OUTSIDE SHOULD
MOVE TO A SHELTER...INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS.

&&

LAT...LON 3868 9099 3882 9095 3878 9057 3849 9068
      3857 9099
TIME...MOT...LOC 1340Z 269DEG 21KT 3862 9089

HAIL...1.75IN
WIND...<50MPH

$$

GKS

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.

NWS St. Louis, MO wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 7, 6:49 AM CDT, 1 hour 7 minutes earlier.

Area forecast discussion, Apr 7, 6:49 AM CDT, 1 hour 7 minutes before

AREA FORECAST DISCUSSION...UPDATED AVIATION
NATIONAL WEATHER SERVICE ST LOUIS MO
649 AM CDT Tue Apr 7 2015

.SHORT TERM:  (Through Tonight)
Issued at 343 AM CDT Tue Apr 7 2015

Starting to sound like a broken record, but once again, focus will
be precip chances thru the period.

Expect precip over the ern portions of the CWA to continue moving
out of the area early this morning. Some isod SHRA, and perhaps TS,
will be possible. However, main focus is expected to be the ongoing
TSRA over wrn MO. Numerous mdl solns suggest this cluster of TSRA
will lift enewd into the area this morning and build sewd late this
morning, perhaps into the afternoon, as the LLJ veers. However, some
question remains how far E and S these storms will propagate before
dissipating as the LLJ weakens. As these storms dissipate, expect a
lull this afternoon into the evening before the next round arrives.
Some question remains as to where/when TSRA will initiate, but best
chances shud be along the sfc boundary across the nrn portions of
the CWA, tho any outflow boundaries may also help initiate storms.
Have kept PoPs for tonight in the change range due to questions in
boundary locations.

Given the amount of elevated CAPE and deep shear available, a severe
threat will exist with hail and winds as a primary threat.

Little change in temps for today and tonight with continued trends
twd warm guidance.

Tilly

.LONG TERM:  (Wednesday through Monday)
Issued at 414 AM CDT Tue Apr 7 2015

Not many changes from the prev forecast. Still a number of
questions exist with upcoming system. A severe threat still exists
on Wed during the late afternoon and overnight period. The greater
threat still exists on Thurs as the cdfnt pushes thru the region.
Mdl solns have changed slightly from yesterday. Mdls have sped up
timing of fropa slightly, with bulk of precip expected to be E of
the CWA by 06z Fri. Mdls now have upper trof remaining neutral as
it approaches the region. Still, enuf CAPE and deep shear will
exist to pose a severe threat. Please see the latest SPC day 2 and
day 3 outlooks for the latest info as local thinking agrees with
SPC.

Mdl solns differ regarding timing of the next system Sat into Sun.
Have low PoPs early to account for the GFS soln and trended twd
higher PoPs where/when mdls are in better agreement.

Otherwise, have continued warm trend thru Thurs despite the ample
cloud cover expected. Cooler, but seasonal avg, temps are expected
this weekend as a large sfc ridge settles into the area.

Tilly

&&

.AVIATION:  (For the 12z TAFs through 12z Wednesday Morning)
Issued at 632 AM CDT Tue Apr 7 2015

Busy fcst prd over the next 24 hrs. Warm front currently lifting
north thru cntrl MO and sthrn IL with a significant TSTM rolling
east along the bndry. This storm has a history of producing 1-2
inch hail and should arrive in the wrn STL metro area around 13Z.
CIGs have been sporadic with VFR and LIFR conditions from west to
east across the STL metro area. Model guidance indicates plenty of
IFR/MVFR conditions thru the fcst prd but lack of verification
compared to current obs makes the CIG fcst low confidence. Think
the general trend will be for CIGs to slowly rise today as the
warm front lifts north only to build back down tonight. Pattern is
conducive for scttrd convection just about anytime...but think the
best chances will be tied to the warm front and should be confined
to area along and north of I70.

Specifics for KSTL:

Sporadic CIGs this mrng are expected to rise as a warm front
lifts north...though the CIG fcst is low confidence due to poor
model performance compared to currently obs. A significant TSTM is
riding east along the bndry and should be near the terminal around
14Z. This storm has a history of producing 1-2 inch hail. The
overall pattern is such that SHRA/TSTMs are possible just about
anywhere at anytime but think the best chances this prd should be
tied to the warm front. With that bndry lifting north this
mrng...chances should decrease after this mrngs activity.

2%

&&

.PRELIMINARY POINT TEMPS/POPS:
Saint Louis     80  64  81  68 /  60  40  50  70
Quincy          74  60  77  62 /  60  40  60  80
Columbia        79  62  80  64 /  60  40  60  70
Jefferson City  80  63  81  65 /  50  40  60  70
Salem           77  62  79  66 /  50  40  30  70
Farmington      78  62  81  65 /  40  30  30  60

&&

.LSX WATCHES/WARNINGS/ADVISORIES:
MO...NONE.
IL...NONE.
&&

WFO LSX

Hazardous weather outlook, Apr 7, 4:13 AM CDT, 3 hours 43 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ST LOUIS MO
413 AM CDT TUE APR 7 2015

ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-
034>036-041-042-047>052-059>065-072>075-084-085-099-081200-
GREENE IL-MACOUPIN IL-MONTGOMERY IL-BOND IL-FAYETTE IL-CLINTON IL-
MARION IL-WASHINGTON IL-RANDOLPH IL-ADAMS IL-BROWN IL-PIKE IL-
CALHOUN IL-JERSEY IL-MADISON IL-ST. CLAIR IL-MONROE IL-KNOX MO-
LEWIS MO-SHELBY MO-MARION MO-MONROE MO-RALLS MO-PIKE MO-BOONE MO-
AUDRAIN MO-MONITEAU MO-COLE MO-OSAGE MO-CALLAWAY MO-MONTGOMERY MO-
LINCOLN MO-GASCONADE MO-WARREN MO-ST. CHARLES MO-FRANKLIN MO-
ST. LOUIS MO-ST. LOUIS CITY MO-JEFFERSON MO-CRAWFORD MO-
WASHINGTON MO-ST. FRANCOIS MO-STE. GENEVIEVE MO-IRON MO-
MADISON MO-REYNOLDS MO-
413 AM CDT TUE APR 7 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN AND
CENTRAL MISSOURI AS WELL AS WEST CENTRAL AND SOUTHWEST ILLINOIS.

.DAY ONE...TODAY AND TONIGHT

THUNDERSTORMS ARE LIKELY THIS MORNING ACROSS PORTIONS OF CENTRAL
AND EASTERN MISSOURI AS WELL AS NORTH CENTRAL AND SOUTHWEST
ILLINOIS. THERE IS A CHANCE FOR THUNDERSTORMS ACROSS THE AREA TONIGHT.
A FEW OF THE STORMS MAY BECOME STRONG TO SEVERE..WITH LARGE HAIL
BEING THE PRIMARY SEVERE WEATHER THREAT.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

THUNDERSTORMS ARE LIKELY OVER MUCH OF THE AREA FROM WEDNESDAY
AFTERNOON...THURSDAY...AND INTO THURSDAY NIGHT. SOME OF THE THUNDERSTORMS
MAY BE SEVERE WEDNESDAY NIGHT...AND AGAIN ON THURSDAY AND INTO
THURSDAY NIGHT.

THE CHANCE FOR THUNDERSTORMS RETURNS SUNDAY THROUGH MONDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ARE REQUESTED TO REPORT ANY HAIL THAT THEY OBSERVE
THROUGH TONIGHT.

TILLY

In the hours before

Local storm report, Apr 7, 6:45 AM CDT, 1 hour 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
645 AM CDT TUE APR 07 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0644 AM     HAIL             WILLIAMSBURG            38.92N  91.70W
04/07/2015  M1.50 INCH       CALLAWAY           MO   TRAINED SPOTTER

&&

DYE

Local storm report, Apr 7, 7:03 AM CDT, 53 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
703 AM CDT TUE APR 07 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0617 AM     HAIL             4 SE KINGDOM CITY       38.91N  91.88W
04/07/2015  E1.75 INCH       CALLAWAY           MO   PUBLIC

            REPORTED IN CALWOOD...RELAYED VIA KOMU...TIME ESTIMATED
            BY RADAR

&&

MILLER

Local storm report, Apr 7, 7:07 AM CDT, 49 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
707 AM CDT TUE APR 07 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0605 AM     HAIL             3 NNW KINGDOM CITY      38.99N  91.96W
04/07/2015  M1.50 INCH       CALLAWAY           MO   MESONET

            MEASUREMENT TAKEN 30 MINS AFTER HAIL FELL...COCORAHS
            REPORT

&&

MILLER

Local storm report, Apr 7, 7:12 AM CDT, 44 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
712 AM CDT TUE APR 07 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0711 AM     HAIL             MONTGOMERY CITY         38.98N  91.51W
04/07/2015  E0.25 INCH       MONTGOMERY         MO   TRAINED SPOTTER

&&

DYE

Local storm report, Apr 7, 7:54 AM CDT, 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
754 AM CDT TUE APR 07 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0752 AM     HAIL             WARRENTON               38.82N  91.14W
04/07/2015  E1.00 INCH       WARREN             MO   TRAINED SPOTTER

            HAIL SIZE RANGED FROM DIME TO QUARTER.

&&

DYE

Local storm report, Apr 7, 7:56 AM CDT, 0 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
756 AM CDT TUE APR 07 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0755 AM     HAIL             WARRENTON               38.82N  91.14W
04/07/2015  E1.00 INCH       WARREN             MO   TRAINED SPOTTER

&&

DYE

The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 7, 4:59 AM CDT	Severe Thunderstorm Warning	LSX	Boone	46 min
Apr 7, 5:34 AM CDT	Severe Thunderstorm Warning	LSX	Audrain, Callaway	56 min
Apr 7, 6:23 AM CDT	Severe Thunderstorm Warning	LSX	Callaway, Montgomery	67 min
Apr 7, 7:06 AM CDT	Severe Thunderstorm Warning	LSX	Lincoln, Montgomery, Warren	54 min
Apr 7, 8:42 AM CDT	Severe Thunderstorm Warning	LSX	Franklin, Jefferson, Saint Charles, Saint Louis	48 min
Apr 7, 9:18 AM CDT	Severe Thunderstorm Warning	LSX	Franklin, Jefferson	42 min
Apr 7, 9:26 AM CDT	Severe Thunderstorm Warning	LSX	Jefferson, Saint Louis, City of Saint Louis	49 min
Apr 7, 9:42 AM CDT	Flash Flood Warning	LSX	Franklin, Jefferson, Saint Charles, Saint Louis, Warren	8 hr
Apr 7, 9:58 AM CDT	Severe Thunderstorm Warning	LSX	Franklin, Jefferson	47 min
Apr 7, 10:03 AM CDT	Severe Thunderstorm Warning	LSX	Saint Louis, City of Saint Louis	42 min
Apr 7, 10:43 AM CDT	Areal Flood Advisory	LSX	Saint Louis, City of Saint Louis	4 hr
Apr 7, 10:53 AM CDT	Flash Flood Warning	LSX	Crawford, Franklin, Jefferson, Washington	4 hr
Apr 7, 12:42 PM CDT	River Flood Warning	LSX	Saint Charles	35 hr
Apr 7, 12:47 PM CDT	Flash Flood Warning	LSX	Jefferson, Sainte Genevieve, Saint Francois, Washington	6 hr

Nearby

Severe Thunderstorm Warnings in Missouri, 2015 Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.