Alert archive / Missouri / River Flood Warnings in 2019

River Flood Warning 122, NWS St. Louis, MO

May 1, 2019Crawford County, Washington County, Missouri

NWS St. Louis, MO issued this river flood warning at May 1, 2019, 6:22 AM CDT for Crawford County, Washington County, Missouri. It took effect at May 1, 2019, 2:09 PM CDT. It was in force for 42 hr.

The area

The counties it named.

The facts

Issued: May 1, 2019, 6:22 AM CDT (11:22 UTC)
In effect from: May 1, 2019, 2:09 PM CDT
Expired: May 3, 2019, 8:12 AM CDT
In force: 42 hr
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Flood severity: Minor

Counties Crawford County, MO, Washington County, MO

The radar

The St Louis radar (KLSX), 89 km from the middle of the area, began a volume at 11:26 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 river

Written for the forecast point Meramec River near Sullivan (SLLM7). The gauge peaked at 14.52 ft at May 2, 2019, 10:00 AM CDT.

Action stage: 9 ft
Minor stage: 11 ft
Moderate stage: 20 ft
Major stage: 29 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 07014500, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What forecasters said that day

The local office's own words before this river flood 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 river flood warning went out at May 1, 4:50 AM CDT, 1 hour 32 minutes earlier.

Area forecast discussion, May 1, 4:50 AM CDT, 1 hour 32 minutes before

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Hazardous weather outlook, May 1, 4:15 AM CDT, 2 hours 7 minutes before

Hazardous Weather Outlook
National Weather Service Saint Louis MO
415 AM CDT Wed May 1 2019

ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-
034>036-041-042-047>052-059>065-072>075-084-085-099-021200-
Adams IL-Audrain MO-Bond IL-Boone MO-Brown IL-Calhoun IL-Callaway MO-
Clinton IL-Cole MO-Crawford MO-Fayette IL-Franklin MO-Gasconade MO-
Greene IL-Iron MO-Jefferson MO-Jersey IL-Knox MO-Lewis MO-Lincoln MO-
Macoupin IL-Madison IL-Madison MO-Marion IL-Marion MO-Moniteau MO-
Monroe IL-Monroe MO-Montgomery IL-Montgomery MO-Osage MO-Pike IL-
Pike MO-Ralls MO-Randolph IL-Reynolds MO-Saint Charles MO-
Saint Clair IL-Saint Francois MO-Saint Louis City MO-Saint Louis MO-
Sainte Genevieve MO-Shelby MO-Warren MO-Washington IL-Washington MO-
415 AM CDT Wed May 1 2019

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 through tonight. Isolated strong to severe
storms are possible this afternoon and evening, mainly for areas
near and south of Interstate 70. The primary severe weather threats
will be large hail and damaging winds.

A favorable setup remains through tonight for new flooding with
thunderstorms dropping additional rainfall on already saturated
ground. As a result, a Flash Flood Watch remains in effect through
tonight. See the Watch product for specific details.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

The chance for thunderstorms will continue through Friday night.
Scattered severe storms will be possible on Thursday mainly for areas
south and east of Saint Louis.

The chance for thunderstorms returns to the area late Monday and into
Tuesday.

In addition to the flash flood threat, the prolonged and potentially
heavy rainfall is forecast to impact the mainstem rivers. A number
of river forecast points on the Mississippi River above Alton and the
Illinois River at Hardin are forecast to return to major flooding
with several other points forecast to moderate flooding.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will be possible this afternoon and evening for
areas mainly near and south of Interstate 70.

TES

In the hours before

Local storm report, May 1, 1:15 AM CDT, 5 hours 7 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE ST LOUIS MO
115 AM CDT WED MAY 1 2019

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

0320 PM     HAIL             TROY                    38.73N 89.89W
04/30/2019  E1.00 INCH       MADISON            IL   TRAINED SPOTTER

0315 PM     HAIL             1 E COLLINSVILLE        38.68N 89.98W
04/30/2019  E2.00 INCH       MADISON            IL   PUBLIC

0310 PM     HAIL             4 SE COLLINSVILLE       38.64N 89.95W
04/30/2019  E1.00 INCH       ST. CLAIR          IL   PUBLIC

0305 PM     HAIL             ALHAMBRA                38.89N 89.73W
04/30/2019  E1.75 INCH       MADISON            IL   PUBLIC

0305 PM     HAIL             KAUFMAN                 38.87N 89.78W
04/30/2019  E1.50 INCH       MADISON            IL   TRAINED SPOTTER

            TRAINED SPOTTER REPORTED HAIL ALONG LEADING
            EDGE OF THE STORM.

0301 PM     HAIL             1 SSE COLLINSVILLE      38.67N 89.99W
04/30/2019  E1.00 INCH       MADISON            IL   TRAINED SPOTTER

0250 PM     HAIL             1 SSE EDWARDSVILLE      38.78N 89.95W
04/30/2019  E1.00 INCH       MADISON            IL   PUBLIC

0247 PM     HAIL             GLEN CARBON             38.76N 89.97W
04/30/2019  E0.70 INCH       MADISON            IL   TRAINED SPOTTER

0245 PM     HAIL             1 NNE EDWARDSVILLE      38.80N 89.96W
04/30/2019  E1.00 INCH       MADISON            IL   TRAINED SPOTTER

0243 PM     HAIL             2 ESE EDWARDSVILLE      38.79N 89.93W
04/30/2019  E1.00 INCH       MADISON            IL   TRAINED SPOTTER

0220 PM     HAIL             2 E GRANITE CITY        38.71N 90.10W
04/30/2019  E1.00 INCH       MADISON            IL   TRAINED SPOTTER

&&

Local storm report, May 1, 3:14 AM CDT, 3 hours 8 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
314 AM CDT WED MAY 1 2019

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

0312 AM     HEAVY RAIN       1 W COLUMBIA            38.96N 92.35W
05/01/2019  M2.41 INCH       BOONE              MO   COCORAHS

            2.41 INCHES IN THE PAST 14 HOURS.

&&

Local storm report, May 1, 5:00 AM CDT, 1 hour 22 minutes before

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Local storm report, May 1, 5:03 AM CDT, 1 hour 19 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 30, 7:32 PM CDT	Areal Flood Advisory	LSX	Saint Charles, Saint Louis, City of Saint Louis	3 hr
Apr 30, 7:46 PM CDT	River Flood Warning	LSX	Reynolds	3 days
Apr 30, 8:05 PM CDT	Areal Flood Warning	LSX	Knox, Lewis, Marion, Monroe, Ralls, Shelby	24 hr
Apr 30, 9:44 PM CDT	River Flood Warning	LSX	Marion	3 days
Apr 30, 9:52 PM CDT	Areal Flood Warning	LSX	Audrain, Boone, Callaway, Cole, Moniteau, Osage	24 hr
Apr 30, 10:01 PM CDT	Areal Flood Warning	LSX	Franklin, Gasconade, Jefferson, Lincoln, Montgomery, Pike and 4 more	24 hr
Apr 30, 10:26 PM CDT	Tornado Warning	LSX	Crawford	49 min
Apr 30, 10:47 PM CDT	Severe Thunderstorm Warning	LSX	Iron, Reynolds	28 min
Apr 30, 11:05 PM CDT	Severe Thunderstorm Warning	LSX	Iron, Jefferson, Sainte Genevieve, Saint Francois, Washington	40 min
Apr 30, 11:15 PM CDT	Tornado Warning	LSX	Iron, Reynolds, Saint Francois, Washington	30 min
Apr 30, 11:18 PM CDT	River Flood Warning	LSX	Lewis	64 hr
Apr 30, 11:20 PM CDT	Severe Thunderstorm Warning	LSX	Iron, Madison, Reynolds	40 min
Apr 30, 11:23 PM CDT	River Flood Warning	LSX	Saint Charles	32 hr
Apr 30, 11:26 PM CDT	River Flood Warning	LSX	Osage	26 hr
Apr 30, 11:29 PM CDT	Tornado Warning	LSX	Jefferson, Sainte Genevieve, Saint Francois, Washington	31 min
Apr 30, 11:44 PM CDT	Severe Thunderstorm Warning	LSX	Iron, Jefferson, Madison, Sainte Genevieve, Saint Francois	46 min
Apr 30, 11:51 PM CDT	Areal Flood Warning	LSX	Crawford, Iron, Madison, Reynolds, Sainte Genevieve, Saint Francois and 1 more	24 hr
Apr 30, 11:52 PM CDT	Tornado Warning	LSX	Jefferson, Sainte Genevieve, Saint Francois	23 min
May 1, 12:01 AM CDT	River Flood Warning	LSX	Boone	9 hr
May 1, 12:25 AM CDT	Severe Thunderstorm Warning	LSX	Sainte Genevieve, Saint Francois	50 min
May 1, 1:18 AM CDT	River Flood Warning	LSX	Cole	58 hr
May 1, 3:44 AM CDT	River Flood Warning	LSX	Lewis	3 days
May 1, 3:57 AM CDT	River Flood Warning	LSX	Lincoln	33 hr
May 1, 9:15 AM CDT	River Flood Warning	LSX	Franklin	3 days
May 1, 9:15 AM CDT	River Flood Warning	LSX	Crawford	25 hr
May 1, 9:15 AM CDT	River Flood Warning	LSX	Franklin, Jefferson	5 days
May 1, 9:15 AM CDT	River Flood Warning	LSX	Jefferson, Saint Louis	4 days
May 1, 11:59 AM CDT	River Flood Warning	LSX	Jefferson, Saint Louis	15 days
Apr 30, 10:09 PM CDT	Areal Flood Warning	LSX	Adams, Brown, Pike	15 hr
Apr 30, 10:12 PM CDT	Areal Flood Warning	LSX	Bond, Calhoun, Fayette, Greene, Jersey, Macoupin and 2 more	24 hr
May 1, 7:44 AM CDT	River Flood Warning	LSX	Brown	8 days

Nearby

River Flood Warnings in Missouri, 2019 Every river flood warning in 2019

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.