Alert archive / Missouri / Flash Flood Warnings in 1991

Flash Flood Warning 2, NWS Springfield, MO

May 17, 1991Shannon County, Texas County, Missouri

NWS Springfield, MO issued this flash flood warning at May 17, 1991, 7:20 PM CDT for Shannon County, Texas County, Missouri. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
May 17, 1991, 7:20 PM CDT (00:20 UTC)
Expired
May 17, 1991, 11:00 PM CDT
In force
4 hr
Issued by
NWS Springfield, MO
Area
Whole counties

Counties Shannon County, MO, Texas County, MO

The nearest sounding before it

Springfield, MO (KUMN), launched 00:00Z, 0.3 hours before the alert went out and 192 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, Springfield, MO at 00:00Z on 1991-05-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2223 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, Springfield, MO at 00:00Z on 1991-05-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 18 square meters per square second.19395878Sfc1 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
2223 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
898 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
18 m²/s²
0-3 km storm-relative helicity
45 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

What forecasters said that day

The local office's own words before this flash flood 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 17, 1:57 PM CDT, 5 hours 23 minutes before
MOZ015-016-019-020-021-172050 -

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
2PM CDT FRI MAY 17 1991

AT 2PM A LARGE THUNDERSTORM HAD DEVELOPED ON THE TANEY-OZARK COUNTY
LINE TO THE GEAST OF FORSYTH.  IT WAS PRODUCING VERY HEAVY RAINFALL.
MOVEMENT WILL PROBABLY BE TO THE NORTHEAST WHICH WOULD CARRY IT INTO
EASTERN DOUGLAS COUNTY TO THE EAST OF AVA.

NINE
Special weather statement, May 17, 5:26 PM CDT, 1 hour 54 minutes before
MOZ015-016-019-020-021-172330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
520 PM CDT FRI MAY 17 1991

...WIDELY SCATTERED THUNDERSTORMS ARE DEVELOPING AROUND SOUTH CENTRAL AND
CENTRAL MISSOURI...

WEATHER SERVICE RADAR AT 515 PM SHOWED AN INTENSE THUNDERSTORM 20 MILES
NORTHEAST OF BRANSON OVER BEAVER AND BRUSHY CREEK.  THE THUNDERSTORM WAS
MOVING NORTHEAST 20 MPH.

THIS STORM WILL MOVE INTO THE NORTHEAST CORNER OF TANEY COUNTY BY 545 PM.

ANOTHER STRONG THUNDERSTORM HAD DEVELOPED JUST SOUTHEAST OF WEST PLAINS
IN HOWELL COUNTY.

THESE STORMS WILL PRODUCE VERY HEAVY RAIN...STRONG GUSTY WIND...AND SMALL
HAIL AS THEY MOVE TO THE NORTHEAST.

PEOPLE SHOULD BE ALERT FOR LATER WEATHER BULLETINS CONCERNING THE STORMS.
IF THESE STORMS CONTINUE TO DEVELOP THEY WOULD LIKELY PRODUCE LARGE HAIL
AND A WARNING WOULD BE NECESSARY.

LEE
Special weather statement, May 17, 7:10 PM CDT, 10 minutes before
MOZ015-016-019-020-021-180130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
705 PM CDT FRI MAY 17 1991

...A CLUSTER OF THUNDERSTORMS PRODUCING HAIL AND HEAVY RAIN OVER SOUTH
CENTRAL AND SOUTHEAST MISSOURI...

RADAR AT 700 PM CDT INDICATED A CLUSTER OF STRONG THUNDERSTORMS 30 MILES
SOUTH OF ROLLA BETWEEN LICKING AND SALEM MISSOURI.  THE THUNDERSTORMS WERE
MOVING SLOWLY NORTHEAST IF ANY MOVEMENT AT ALL.

THERE HAVE BEEN SEVERAL REPORTS OF HAIL FROM THESE STORMS AS WELL AS HEAVY
DOWNPOURS OF RAIN.

PEOPLE AROUND THE MONTAUK STATE PARK...THE CURRENT RIVER...PIDGEON AND
GLADDEN CREEK SHOULD USE EXTREME CAUTION WHILE THESE STORMS ARE IN THE
AREA.

FLOODING OF SMALL STREAMS...ALONG WITH HAIL MAY BE EXPECTED UNTIL THESE
STORMS DISSIPATE OR MOVE NORTHEAST.

IF SEVERE WEATHER APPROACHES MOVE TO AN INTERIOR ROOM ON THE LOWEST
FLOOR OF YOUR HOME OR BUSINESS.

LEE

The office that day

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

IssuedProductOfficeCountiesLasted
May 17, 11:00 PM CDTFlash Flood WarningSGFShannon2 hr

Nearby

Flash Flood Warnings in Missouri, 1991Every flash flood warning in 1991

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.