Alert archive / Montana / Flash Flood Warnings in 2013

Flash Flood Warning 9, NWS Glasgow, MT

June 24, 2013Phillips County, Montana

NWS Glasgow, MT issued this flash flood warning at Jun 24, 2013, 9:21 PM MDT for Phillips County, Montana. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 24, 2013, 9:21 PM MDT (03:21 UTC)
Expired: Jun 25, 2013, 1:45 AM MDT
In force: 4 hr
Issued by: NWS Glasgow, MT
Area: Storm-based polygon
Flood severity: None

County Phillips County, MT

The radar

The Glasgow radar (KGGW), 96 km from the middle of the area, began a volume at 03:22 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

Glasgow Intl Airport, MT (KGGW), launched 00:00Z, 3.4 hours before the alert went out and 97 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: 1513 J/kg
Mixed-layer CIN: -71 J/kg
Mixed-layer LCL: 1897 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 84 m²/s²
0-3 km storm-relative helicity: 185 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 7.5

Open this sounding in Storm Lab

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.

NWS Glasgow, MT wrote its last area forecast discussion before this flash flood warning went out at Jun 24, 7:29 PM MDT, 1 hour 52 minutes earlier.

Area forecast discussion, Jun 24, 7:29 PM MDT, 1 hour 52 minutes before

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Hazardous weather outlook, Jun 24, 2:26 PM MDT, 6 hours 55 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GLASGOW MT
226 PM MDT MON JUN 24 2013

MTZ016>027-059>062-251200-
CENTRAL AND SOUTHEAST PHILLIPS-CENTRAL AND SOUTHERN VALLEY-
DANIELS-SHERIDAN-WESTERN ROOSEVELT-PETROLEUM-GARFIELD-MCCONE-
RICHLAND-DAWSON-PRAIRIE-WIBAUX-NORTHERN PHILLIPS-
SOUTHWEST PHILLIPS-NORTHERN VALLEY-EASTERN ROOSEVELT-
226 PM MDT MON JUN 24 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHEAST
MONTANA.

.DAY ONE...THIS AFTERNOON AND TONIGHT

THERE IS AN INCREASING CHANCE FOR THUNDERSTORMS LATE THIS AFTERNOON
AND EVENING...SOME OF WHICH MAY BECOME SEVERE WITH LARGE HAIL AND
DAMAGING WIND. RAIN MAY BECOME HEAVY AT TIMES LATE TONIGHT THROUGH
TUESDAY.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

GUSTY WEST WINDS COULD BE POSSIBLE OVER FORT PECK LAKE WEDNESDAY
AFTERNOON WHICH WOULD CAUSE A LIGHT CHOP ON THE LAKE. SHOULD
CONFIDENCE INCREASE IN THESE WINDS... A LAKE WIND ADVISORY WILL BE
NEEDED.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

In the hours before

Local storm report, Jun 24, 9:19 PM MDT, 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GLASGOW MT
919 PM MDT MON JUN 24 2013

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

0913 PM     HEAVY RAIN       10 S ZORTMAN            47.78N 108.56W
06/24/2013  M1.00 INCH       PHILLIPS           MT   TRAINED SPOTTER

            1 INCH OF RAIN IN ABOUT 15 MINUTES...STILL RAINING AT THE
            TIME OF THE REPORT. ALSO HAD HALF INCH HAIL

&&

JB

The office that day

Everything else NWS Glasgow, MT issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 24, 8:55 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, Petroleum, Phillips	50 min
Jun 24, 9:40 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, Petroleum, Phillips	50 min
Jun 24, 9:54 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, Phillips, Valley	66 min
Jun 24, 9:55 PM MDT	Severe Thunderstorm Warning	GGW	Phillips	65 min
Jun 24, 10:36 PM MDT	Flash Flood Warning	GGW	Garfield, Petroleum, Phillips	3 hr
Jun 24, 10:56 PM MDT	Special Weather Statement	GGW	Petroleum	64 min
Jun 24, 10:56 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, McCone, Phillips, Valley	64 min
Jun 24, 11:29 PM MDT	Severe Thunderstorm Warning	GGW	Petroleum	46 min
Jun 24, 11:52 PM MDT	Flash Flood Warning	GGW	Petroleum	3 hr
Jun 24, 11:53 PM MDT	Special Weather Statement	GGW	Valley	67 min
Jun 25, 12:00 AM MDT	Special Weather Statement	GGW	Valley	45 min
Jun 25, 12:08 AM MDT	Severe Thunderstorm Warning	GGW	Petroleum	52 min
Jun 25, 12:25 AM MDT	Flash Flood Warning	GGW	Valley	3 hr
Jun 25, 1:01 AM MDT	Special Weather Statement	GGW	Valley	59 min
Jun 25, 1:16 AM MDT	Areal Flood Warning	GGW	Phillips	8 hr
Jun 25, 1:42 AM MDT	Flash Flood Warning	GGW	Valley	3 hr
Jun 25, 2:25 AM MDT	Areal Flood Warning	GGW	Petroleum	6 hr
Jun 25, 3:27 AM MDT	Areal Flood Advisory	GGW	Valley	6 hr

Nearby

Flash Flood Warnings in Montana, 2013 Every flash flood warning in 2013

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.